Komatsuwheel loadersmall ( - wa120 / sk*)
Komatsu SK815-5(S/N 37BF00006-Up)
Maintenance schedule, common problems & OEM parts breakdown
The Komatsu SK815-5 (S/N 37BF00006-Up) is a small articulated 4WD wheel loader in Komatsu's compact utility loader lineup, built roughly 2001 through 2017. This base 37BF-prefix configuration runs a Komatsu 4D84E four-cylinder diesel in its standard, non-turbo tune, rated 36.2 kW (48.5 hp) at 2,600 rpm; a turbocharged S4D84E variant of the same engine family powers the separately-serialed SK815-5 Turbo (37BTF prefix) built alongside it at a higher output. Operating weight runs approximately 2,630-2,890 kg (5,785-6,370 lb) depending on source and equipped configuration. The SK815-5 sits between the smaller SK714-5 and the larger SK820-5, SK1020-5, and SK1026-5 in the same generation of Komatsu's compact loader family, and was offered as a base unit, a Turbo model, and with an optional Super Flow high-flow hydraulic circuit for attachment-heavy work, plus a choice of open ROPS/FOPS operator cage or a fully enclosed heated cab.
Within the SK815-5 nameplate the main differences are engine tune (standard vs Turbo) and hydraulic flow (standard vs Super Flow), plus a later in-production parts-book break within this same 37BF prefix that does not change the model or engine. Komatsu retired the SK815-5 for the SK815-5E0 in 2017, an emissions-tier update carrying the same badge, and has since moved its compact loader lineup to newer-generation platforms. That makes this original SK815-5 a used-equipment machine today: its mechanically-governed engine and analog warning-lamp instrumentation, with no ECM and no fault codes, keep it simple to diagnose and cheap to keep running, which appeals to buyers who want to avoid emissions-electronics repair costs. Parts increasingly move through Komatsu's parts network and aftermarket compact-equipment suppliers rather than a broad new-machine dealer floor, so confirming parts and service support before relying on one for daily production work is worth doing.
Below: full specifications, fluids & capacities, the factory service schedule, common service parts, verified fault codes, what owners discuss, attachment guidance, the complete assembly directory, and a serial-number reference. Complete parts lists with full OEM part numbers, exploded diagrams, quantities, and fitment data are available free in Heavy Parts AI.
Komatsu SK815-5(S/N 37BF00006-Up) specifications
Engine
| Engine model | Komatsu 4D84E four-cylinder diesel, naturally aspirated, direct injection, for this 37BF-prefix configuration. A turbocharged S4D84E variant of the same engine family equips the separately serialed SK815-5 Turbo variant and is not part of this range. |
| Displacement | 1.995 L (1,995 cc), 84 mm x 90 mm bore and stroke |
| Cylinders | 4, inline, water-cooled, direct injection |
| Rated power | 36.2 kW (48.5 hp) at 2,600 rpm per factory spec literature for this configuration. Some third-party listings show figures near 40 kW (54 hp) on a turbocharged engine code; that rating describes the SK815-5 Turbo variant, not this naturally aspirated 37BF range. |
| Emissions tier | Later dealer literature for this model lists EU Stage IIIA / EPA Tier III compliance. Earlier production years in this serial run predate that standard, so tier compliance is not uniform across the full 37BF00006-Up range. |
Weights
| Operating weight | Approximately 2,890 kg (6,370 lb) per factory spec sheet for this configuration. Other public listings show approximately 2,630 kg (5,785 lb); this lower figure may reflect a different equipped configuration or the turbocharged variant, not this range specifically. |
| Rated operating capacity | About 700 kg (1,540-1,555 lb); tip-load basis not consistently stated across sources |
Dimensions
| Transport length | About 3.35 m (11.0 ft) with bucket fitted; about 2.07 m (6.8 ft) over the chassis without bucket |
| Transport width | Approximately 1.5-1.65 m (60-65 in), varies by tire and rim option |
| Transport height | About 1.96 m (6.4 ft) to top of cab |
| Wheelbase | Approximately 1.04-1.07 m (41-42 in) |
| Ground clearance | About 0.21 m (8.3 in) |
| Turning radius | About 1.65 m (64.8 in), measured to machine rear |
Performance
| Travel speed | Two-speed transmission: low range about 10.6 kph (6.6 mph), high range about 16 kph (10 mph) |
| Breakout force | Reported in a range of roughly 1,520-1,795 kg (3,355-3,950 lb) depending on source; treat as approximate for this configuration |
| Lift capacity | Rated operating capacity about 700 kg (1,540-1,555 lb) at 50% tip load |
| Max discharge height | Approximately 2.9 m reported for this standard configuration. Related later/optional variants on this platform show different figures; not applicable to this 37BF range |
| Reach at max lift | About 0.62 m (24.3 in) |
| Bucket capacity | Standard bucket approximately 0.4-0.46 cu m (0.6 cu yd), about 1.55 m (61 in) wide |
| Gradeability | Not documented in available sources for this model. Verify with dealer if needed. |
Service capacities (summary)
| Fuel tank | 53.4 L (14.1 gal) |
| Hydraulic system | 38.2 L (10.1 gal) reservoir; standard-flow gear pump rated about 62 L/min (16.4 gpm), relief pressure approximately 190-210 bar (2,770-3,045 psi) |
| Engine oil | 8.3 L (2.2 gal) |
| Cooling system | 8.3 L (2.2 gal) |
| Final drive chain case (each side) | 31 L (8.2 gal) |
Values vary by configuration, region, and serial range — confirm against your machine before planning transport or lifts.
SK815-5(S/N 37BF00006-Up) fluids & capacities
| System | Capacity | Recommended fluid |
|---|---|---|
| Engine crankcase (with filter) | 8 L (2.1 US gal), specified and refill quantity equal | Komatsu Genuine 15W-40 CK4 low-ash diesel engine oil, API CD or better. Per the OMM viscosity chart: SAE 10W (also 20W-20 or 10W-30 acceptable) for cold starts below 0°C even if daytime temperature rises; SAE 30 or SAE 40 in warm climates; SAE 10W-30 or SAE 5W-30 as an all-season multigrade. If fuel sulfur content runs 0.5-1.0%, cut the oil-change interval in half; above 1.0% sulfur, cut it to a quarter of the normal interval. |
| Cooling system | 9 L (2.4 US gal) | Water plus antifreeze, or Komatsu permanent (long-life) coolant. Mix ratio set to regional climate and freeze-protection needs. |
| Fuel tank | 38 L (10.0 US gal) for this S/N range (naturally aspirated 4D84E engine); the turbocharged SK815-5 turbo variant carries a larger 50 L (13.2 US gal) tank - verify tank size against the machine before fueling to spec | Diesel fuel, ASTM D975 No. 2. |
| Hydraulic system and tank (incl. hydrostatic transmission circuit) | Total system (tank, lines, cylinders): 38 L (10.0 US gal). Oil-change/refill quantity: approx. 27 L (7.1 US gal). | Komatsu Genuine HO46 anti-wear hydraulic fluid, SAE 10W or SAE 5W-30, API CD. A biodegradable hydraulic oil is factory-approved as an alternative at the same fill quantities. |
| Final drive case, front and rear (each side) | 15.5 L (4.1 US gal) per side, specified and refill quantity equal | SAE 10W-30 gear/HST oil, API CD - Komatsu Genuine 10W30 DH fluid formulated for hydrostatic-transmission final-drive applications. |
| Grease (chassis pivot and pin points) | Apply per grease point at scheduled service intervals; no reservoir capacity specified in the OMM | Komatsu Genuine G2-LI multi-purpose lithium-complex grease, NLGI 2 - the factory-specified grease across the Komatsu lineup. |
Capacities are refill values from factory literature — always fill to the dipstick/sight gauge, not the number.
Komatsu SK815-5(S/N 37BF00006-Up) maintenance schedule
| Service interval | Tasks |
|---|---|
| Every 50 h |
|
| Every 250 h |
|
| Every 500 h |
|
| Every 1,000 h |
|
| Every 2,000 h |
|
| Every 4,000 h |
|
Servicing the SK815-5(S/N 37BF00006-Up) beyond the schedule
Predictive Maintenance & Fluid Analysis
On the SK815-5 (37BF-prefix), the 4D84E engine and hydrostatic drive carry no ECM or fault-code system, so scheduled oil sampling is the main early-warning tool. Send in engine oil (Komatsu EO 15W-40 CK4), HO46 hydraulic fluid, and final-drive chain-case oil at each interval and watch wear-metal trends from the hydrostatic pump and wheel motors, which announce bearing wear audibly well before failure. Track how often the hydraulic return-filter warning lamp trips; a shortening interval points to degrading fluid or a failing pump before it strands the machine.
Corrective & Common Repairs
The most common 'dead machine' complaint on this platform is total hydraulic and travel lockout after sitting, and it is usually the seat safety switch or parking-brake interlock, not the pump. Check those and their wiring before opening the hydrostatic transmission. Soft or uneven PPC joystick response usually means trapped air in the loader or steering circuit lines, including under the cab, rather than a worn valve block. Also check the alternator belt if the charge lamp stays lit, and inspect the hydrostatic pump's flexible drive coupling for slip.
Overhaul & Rebuild Points
Top-end engine work on the 4D84E centers on valve lash adjustment as scheduled service, not just a wear symptom, plus injector and glow-plug system checks at major overhauls. On the driveline, the hydrostatic variable-displacement pump and axial-piston wheel motors are the big-ticket rebuild items; watch for growl or whine at speed and address it before metal contamination spreads through the circuit. Final-drive chain cases wear at a similar pace. Lift-arm and bucket-tilt cylinders are common seal-kit rebuild candidates once they start creeping or leaking past the rod.
Seasonal & Environment Servicing
Cold starts on the naturally-tuned 4D84E need a full 20-30 second glow-plug preheat before cranking, or expect white smoke and rough running. The OMM also calls for a lighter engine-oil viscosity below 0°C (32°F) and a coolant mix matched to regional freeze protection. High-sulfur fuel shortens the oil-change interval, so budget more frequent changes where diesel quality is poor. For abrasive yard or demolition work, step up from pneumatic to flat-free or solid-fill tires to avoid sidewall damage, and consider the enclosed heated cab over the open ROPS cage.
SK815-5(S/N 37BF00006-Up) common service parts
| Part number | Part | Notes | |
|---|---|---|---|
| YM129100-55650 | Element,Fuel Filter | Fuel system service | Check fitment → |
| YM129612-55620 | Fuel Filter Ass'Y | Fuel system service | Check fitment → |
| 3F05B2627 | Plate, Safety Fuel Filter | Fuel system service | Check fitment → |
| YM129407-12500 | Air Filter, Assembly | Air intake service | Check fitment → |
| 3F05B2628 | Plate, Safety, Engine Air Filter | Air intake service | Check fitment → |
Always confirm against your machine's serial number — cross-check any part in Heavy Parts AI before ordering.
SK815-5(S/N 37BF00006-Up) fault codes & troubleshooting
| Code | Meaning | Likely cause | What to do |
|---|---|---|---|
| Charge (Generator) Warning Lamp | Alternator is not charging the battery | Alternator belt slipping or broken, faulty alternator, or loose/corroded wiring connection at the alternator or battery | Check alternator belt tension and condition first, then test alternator output; inspect battery cables and ground straps for corrosion |
| Preheat (Glow Plug) Lamp | Intake air preheating circuit is active for cold-start assist | Normal cold-start operation; lamp staying on longer than expected points to a weak glow-plug relay or worn glow plugs | Allow lamp to go out before cranking in cold weather; if preheat time is excessive, check glow plug relay and glow plug condition |
| Engine Oil Pressure Warning Lamp | Engine lubrication pressure has dropped below the safe minimum | Low oil level, clogged oil filter, worn oil pump, or failed oil pressure sender/switch | Shut engine down immediately, check oil level and condition, then check the oil pressure switch and filter before restarting |
| Air Cleaner Clogging Warning Lamp | Air filter restriction has reached the service limit | Dust-loaded primary air filter element or a collapsed/damaged element allowing false triggering | Inspect and clean or replace the air filter element, then verify the restriction indicator resets |
| Hydraulic Oil Filter Clogging Warning Lamp | Return-line hydraulic filter restriction has reached the service limit | Filter element loaded with contamination, cold hydraulic oil causing high viscosity at startup, or degraded hydraulic oil | Let hydraulic oil warm up and recheck; if lamp stays on, replace the hydraulic return filter element and check oil condition |
| Parking Brake Warning Lamp | Parking brake is applied or the brake control circuit has a fault | Brake left engaged, faulty parking brake solenoid, or a wiring/switch fault in the brake release circuit | Confirm parking brake switch position first; if the machine won't move with the brake released, check the parking brake solenoid and its wiring |
| Engine Coolant Temperature Warning (gauge in red zone) | Coolant temperature has risen above the normal operating range (normal range is roughly 80-85 degrees C / 176-185 degrees F) | Low coolant level, clogged or damaged radiator fins, slipping or broken fan belt, or thermostat stuck closed | Stop and idle the engine to cool down, check coolant level once safe, then inspect the radiator, fan belt, and thermostat |
| Safety Device / Seat Bar Interlock Indicator | Operator restraint bar or seat safety interlock circuit is not satisfied, disabling hydraulic and travel functions | Restraint bar not fully lowered, operator not seated, or a faulty seat/bar interlock switch | Confirm the operator is seated with the restraint bar fully down; if functions stay locked out, check the interlock switch and its wiring |
Codes and remedies are general guidance for this model family — always confirm with diagnostic tooling and your dealer before major repairs.
SK815-5(S/N 37BF00006-Up) attachments & work tools
General-purpose buckets
Standard hydraulic self-leveling bucket runs around 0.4 m3 and about 1.55 m wide for this loader class, with roughly 30 degree rollback and 45 degree dump angle. Rated breakout force sits near 1795 kg (3950 lb) class, varies by bucket edge and configuration.
Grapple and material-handling buckets
Grapple-style buckets are offered for this loader size class for brush, scrap, and loose material where extra load retention is needed. They clamp using the same auxiliary hydraulic circuit as other clamp-type work tools.
Pallet forks and bale attachments
Pallet fork carriages and bale spear attachments mount on the universal quick-attach faceplate for palletized loads, general material handling, and bale work. These typically run off the standard lift and tilt circuit without needing the auxiliary hydraulic kit.
Augers
Auger drive units with interchangeable bits handle digging, drilling, and post-hole work in soil, clay, and fracturable rock or asphalt for this class. They draw off the auxiliary hydraulic circuit, and the optional high-flow circuit gives faster auger speed on larger bit sizes.
Sweepers, brooms, and snow tools
Broom and sweeper attachments plus snow pushers or blades are common work tools for this size class, powered from the standard or optional high-flow auxiliary circuit. They mount through the same universal coupler as other tools.
Quick-attach coupler and mounting system
Uses a universal quick-attach faceplate for tool changes, compatible with the broad range of attachments built to the universal quick-attach mounting standard rather than a proprietary Komatsu-only interface.
Auxiliary hydraulics and high-flow kit
Standard auxiliary circuit flow is rated near 16.1 gpm (about 61 L/min); an optional Super Flow high-flow circuit raises this to about 26 gpm (about 98 L/min) for higher-demand tools such as planers, mulchers, or high-speed augers. Flat-face auxiliary hydraulic couplers are offered as an option to reduce fluid loss when swapping tools.
Operator control pattern for attachment use
Loader, travel, and auxiliary circuit functions run through proportional pressure control joysticks with a foot pedal dedicated to the auxiliary line. Three selectable control patterns are offered, from a conventional hand-and-foot layout to two all-hand joystick variants.
Cab and guarding configuration
Base configuration is an open ROPS/FOPS operator cage with 360 degree visibility. An optional fully enclosed cab adds a slide-up overhead front door, side windows, heater, and optional air conditioning.
All SK815-5(S/N 37BF00006-Up) assemblies by section
Every catalogued assembly group for the Komatsu SK815-5(S/N 37BF00006-Up). Open an assembly to preview the parts inside — full OEM part numbers are available in Heavy Parts AI.
Control System
Komatsu : Sk815-5(S/N 37bf00006-Up) : Control System : Attachment Control Pedal
| 37***50 | Support | 1 |
| 37***30 | Spacer | 1 |
| 37***40 | Pedal | 1 |
Komatsu : Sk815-5(S/N 37bf00006-Up) : Control System : Fuel Control Lever
| 33***62 | Clamp | 1 |
| 37***11 | Support | 1 |
| 37***01 | Lever | 1 |
Komatsu : Sk815-5(S/N 37bf00006-Up) : Control System : Fuel Control Pedal (Optional)
| 37***50 | Cable | 1 |
| 37***10 | Pedal | 1 |
| 37***20 | Support | 1 |
Komatsu : Sk815-5(S/N 37bf00006-Up) : Control System : Safety Bars
| 37***11 | Safety Bar, L.H | 1 |
| 37***20 | Support, L.H | 1 |
| 37***11 | Safety Bar, R.H | 1 |
Engine
Komatsu : Sk815-5(S/N 37bf00006-Up) : Engine : Camshaft And Driving Gear
| YM***80 | Camshaft Ass'Y | 1 |
| YM***01 | Gear Ass'Y,Camshaft | 1 |
| YM***01 | Idler Gear Ass'Y,Idler | 1 |
Komatsu : Sk815-5(S/N 37bf00006-Up) : Engine : Cooling Water System
| YM***40 | Joint | 1 |
| YM***22 | Screw | 2 |
| YM***02 | Screw | 4 |
Komatsu : Sk815-5(S/N 37bf00006-Up) : Engine : Crankshaft And Piston
| YM***00 | Gear,Crank | 1 |
| YM***00 | Screw | 8 |
| YM***70 | Piston, Assembly | 4 |
Komatsu : Sk815-5(S/N 37bf00006-Up) : Engine : Cylinder Block
| YM***30 | Main Metal Ass'Y (Std) | 5 |
| YM***00 | Plug | 1 |
| YM***00 | Bolt,Head | 18 |
Komatsu : Sk815-5(S/N 37bf00006-Up) : Engine : Cylinder Head
| 37***01 | Engine, Assembly | 1 |
| YM***80 | Retainer, Spring | 8 |
| YM***40 | Seal,Valve? Exhaust (Kit) | 4 |
Komatsu : Sk815-5(S/N 37bf00006-Up) : Engine : Exhaust Manifold And Silencer
| YM***02 | Bolt Plated | 2 |
| YM***02 | Screw | 6 |
| YM***00 | Manifold, Exhaust | 1 |
Komatsu : Sk815-5(S/N 37bf00006-Up) : Engine : Flywheel - Lubricating Oil Sump
| YM***30 | Spacer | 1 |
| YM***02 | Screw | 4 |
| YM***70 | Screw | 6 |
Komatsu : Sk815-5(S/N 37bf00006-Up) : Engine : Fuel Injection Line
| YM***70 | Union | 1 |
| YM***41 | Pipe,No.4 | 1 |
| YM***20 | Spring | 4 |
Komatsu : Sk815-5(S/N 37bf00006-Up) : Engine : Fuel Injection Pump
| YM***70 | Retainer, Spring | 4 |
| YM***50 | Kit, Shim | 1 |
| YM***10 | Plate? Caution | 1 |
Komatsu : Sk815-5(S/N 37bf00006-Up) : Engine : Fuel Piping
| YM***10 | Cup, Strainer | 1 |
| YM***10 | Pipe | 1 |
| YM***00 | O-Ring (Kit) | 1 |
Komatsu : Sk815-5(S/N 37bf00006-Up) : Engine : Gasket Set
| YM***60 | O-Ring,Fuel Injection Pump | 1 |
| YM***40 | Seal,Valve? Exhaust (Kit) | 4 |
| YM***00 | O-Ring (Kit) | 1 |
Komatsu : Sk815-5(S/N 37bf00006-Up) : Engine : Gear Housing
| YM***60 | O-Ring,Fuel Injection Pump | 1 |
| YM***02 | Bolt Plated | 2 |
| YM***51 | Cap, Lub. Oil Supply | 1 |
Komatsu : Sk815-5(S/N 37bf00006-Up) : Engine : Generator
| YM***02 | Nut | 1 |
| YM***20 | Rear Bracket Ass'Y | 1 |
| YM***30 | Front Bracket Ass'Y | 1 |
Komatsu : Sk815-5(S/N 37bf00006-Up) : Engine : Governor
| YM***40 | Lever,Control | 1 |
| YM***30 | Spacer,Lever Shaft | 1 |
| YM***02 | Nut | 1 |
Komatsu : Sk815-5(S/N 37bf00006-Up) : Engine : Lubricating Oil Pump
| YM***50 | Nut | 1 |
| YM***00 | Valve,Relief | 1 |
| YM***02 | Bolt Plated | 3 |
Komatsu : Sk815-5(S/N 37bf00006-Up) : Engine : Starter Motor
| YM***50 | Pinion Ass'Y,Pinion | 1 |
| YM***20 | Housing,Center | 1 |
| YM***52 | Bolt Plated | 2 |
Komatsu : Sk815-5(S/N 37bf00006-Up) : Engine : Suction Manifold - Air Cleaner
| YM***90 | Gasket,(Not Shown) | 1 |
| YM***02 | Bolt Plated | 6 |
| YM***02 | Screw | 2 |
Engine Related Parts And Electrical System
Komatsu : Sk815-5(S/N 37bf00006-Up) : Engine Related Parts And Electrical System : Air Suction - Muffler
| 37***11 | Pipe, Upper | 1 |
| 37***21 | Kit, Protection | 1 |
| 37***80 | Support | 1 |
Komatsu : Sk815-5(S/N 37bf00006-Up) : Engine Related Parts And Electrical System : Battery
| 37***30 | Support | 1 |
| 37***41 | Stop | 1 |
| 37***50 | Tie-Rod | 2 |
Komatsu : Sk815-5(S/N 37bf00006-Up) : Engine Related Parts And Electrical System : Dashboard
| 37***11 | Switch, Brake | 1 |
| 37***10 | Support | 1 |
| 37***80 | Rear Bonnet | 1 |
Komatsu : Sk815-5(S/N 37bf00006-Up) : Engine Related Parts And Electrical System : Electrical System (1/4)
| 33***05 | Collar | 6 |
| 37***50 | Wiring Harness | 1 |
| 37***40 | Wiring Harness (Europe) | 1 |
Komatsu : Sk815-5(S/N 37bf00006-Up) : Engine Related Parts And Electrical System : Electrical System (2/4)
| 37***60 | Bracket (Standard) | 1 |
| 37***70 | Bracket | 1 |
| 37***80 | Bracket (For Road Circulation) | 1 |
Komatsu : Sk815-5(S/N 37bf00006-Up) : Engine Related Parts And Electrical System : Electrical System (3/4)
| 37***30 | Washer | 1 |
| 37***60 | Cable | 1 |
| 37***10 | Wiring Harness | 1 |
Komatsu : Sk815-5(S/N 37bf00006-Up) : Engine Related Parts And Electrical System : Electrical System (4/4)
| 31***00 | Acustic Alarm | 1 |
| 37***10 | Support, L.H | 1 |
| 37***20 | Support, R.H | 1 |
Komatsu : Sk815-5(S/N 37bf00006-Up) : Engine Related Parts And Electrical System : Engine Mounting Parts
| 37***11 | Support, Rear, L.H | 1 |
| 37***21 | Support, Rear, R.H | 1 |
| 37***30 | Support, Front, L.H | 1 |
Komatsu : Sk815-5(S/N 37bf00006-Up) : Engine Related Parts And Electrical System : Fuel Piping
| 37***21 | Support | 1 |
| 37***10 | Hose | 1 |
| 37***20 | Protection | 1 |
Komatsu : Sk815-5(S/N 37bf00006-Up) : Engine Related Parts And Electrical System : Fuel Tank
| 37***11 | Fuel Tank | 1 |
| 37***22 | Support | 1 |
| 37***31 | V-Belt | 1 |
Komatsu : Sk815-5(S/N 37bf00006-Up) : Engine Related Parts And Electrical System : Power Take Off
| 20***50 | Plug | 1 |
| 37***10 | Cover | 1 |
| 3F***53 | Joint, Assembly | 1 |
Komatsu : Sk815-5(S/N 37bf00006-Up) : Engine Related Parts And Electrical System : Radiator (1/2)
| 37***10 | Gasket | 1 |
| 37***20 | Damper | 2 |
| 37***60 | Support | 1 |
Komatsu : Sk815-5(S/N 37bf00006-Up) : Engine Related Parts And Electrical System : Radiator (2/2)
| 37***12 | Protection | 1 |
| 37***02 | Radiator, Assembly | 1 |
| 37***40 | Hose | 1 |
Frame
Komatsu : Sk815-5(S/N 37bf00006-Up) : Frame : Frame
| 20***20 | Plug | 2 |
| 33***68 | Shim | 2 |
| 37***30 | Cover | 2 |
Komatsu : Sk815-5(S/N 37bf00006-Up) : Frame : Front Drive Shaft
| 37***10 | Shaft | 1 |
| 37***21 | Steering Column | 8 |
| 37***30 | Gasket | 1 |
Komatsu : Sk815-5(S/N 37bf00006-Up) : Frame : Rear Drive Shaft
| 37***01 | Drive Shaft, Rear, Assembly | 2 |
| 37***10 | Shaft | 1 |
| 37***21 | Steering Column | 8 |
Komatsu : Sk815-5(S/N 37bf00006-Up) : Frame : Rear Plate
| 37***62 | Plate | 1 |
| 37***31 | Collar | 1 |
| 37***20 | Hook | 1 |
Komatsu : Sk815-5(S/N 37bf00006-Up) : Frame : Transmission
Komatsu : Sk815-5(S/N 37bf00006-Up) : Frame : Wheels
| 37***90 | Nut | 32 |
| 37***01 | Wheel, L.H., Assembly | 2 |
| 37***11 | Rim | 1 |
Komatsu : Sk815-5(S/N 37bf00006-Up) : Frame : Wheels (Optional) : Unit_01_of_02
| 37***90 | Nut | 32 |
| 37***21 | Rim | 1 |
| 37***00 | Wheel, L.H., Assembly | 2 |
Komatsu : Sk815-5(S/N 37bf00006-Up) : Frame : Wheels (Optional) : Unit_02_of_02
| 37***90 | Nut | 32 |
| 37***00 | Wheel, L.H., Assembly | 2 |
| 37***00 | Wheel, R.H., Assembly | 2 |
Guard And Operator'S Cab
Komatsu : Sk815-5(S/N 37bf00006-Up) : Guard And Operator'S Cab : Cabin (1/2)
| 33***53 | Box | 1 |
| 33***33 | Plate | 1 |
| 37***20 | Plate | 1 |
Komatsu : Sk815-5(S/N 37bf00006-Up) : Guard And Operator'S Cab : Cabin (2/2)
| 37***21 | Support | 1 |
| 37***20 | Damper | 2 |
| 37***30 | Stopper | 1 |
Komatsu : Sk815-5(S/N 37bf00006-Up) : Guard And Operator'S Cab : Engine Hood
| 37***71 | Hinge | 2 |
| 37***10 | Pipe | 1 |
| 37***50 | Support | 1 |
Komatsu : Sk815-5(S/N 37bf00006-Up) : Guard And Operator'S Cab : Operator'S Seat
| 33***63 | Seat Belt, Assembly | 1 |
| 37***10 | Plate | 2 |
| 37***20 | Support | 2 |
Komatsu : Sk815-5(S/N 37bf00006-Up) : Guard And Operator'S Cab : Operator'S Seat (Optional)
| 37***20 | Support | 2 |
| 80***87 | Bolt | 4 |
| 80***10 | Bolt (Canopy) | 2 |
Komatsu : Sk815-5(S/N 37bf00006-Up) : Guard And Operator'S Cab : Ppc Valves Supports
| 20***50 | Screw | 12 |
| 21***60 | Plate,R.H | 4 |
| 37***11 | Support | 1 |
Komatsu : Sk815-5(S/N 37bf00006-Up) : Guard And Operator'S Cab : Rear Door
| 37***32 | Hinge Upper | 1 |
| 37***50 | Screw | 4 |
| 37***60 | Reflex Reflector | 2 |
Mark Plate
Komatsu : Sk815-5(S/N 37bf00006-Up) : Mark Plate : Equipment (For Road Circulation) (1/2)
| 33***23 | Plate, L.H | 1 |
| 33***24 | Plate, R.H | 1 |
| 33***61 | Support | 1 |
Komatsu : Sk815-5(S/N 37bf00006-Up) : Mark Plate : Equipment (For Road Circulation) (2/2)
| 37***51 | Support, L.H | 1 |
| 37***61 | Support, R.H | 1 |
| 80***29 | Screw | 4 |
Komatsu : Sk815-5(S/N 37bf00006-Up) : Mark Plate : Equipment (Germany Version)
| 33***53 | Box | 1 |
| 33***33 | Plate | 2 |
| 33***61 | Support | 2 |
Komatsu : Sk815-5(S/N 37bf00006-Up) : Mark Plate : Mark Plate (Europe Version)
| 09***30 | Plate? Mark,Mark? Galeo | 1 |
| 30***47 | Plate, Hydraulic Oil Level | 1 |
| 31***00 | Plate, Fuel Control Lever | 1 |
Komatsu : Sk815-5(S/N 37bf00006-Up) : Mark Plate : Mark Plate (Usa Version)
| 09***30 | Plate? Mark,Mark? Galeo | 1 |
| 30***47 | Plate, Hydraulic Oil Level | 1 |
| 30***85 | Mark Plate, Danger Pressure | 1 |
Komatsu : Sk815-5(S/N 37bf00006-Up) : Mark Plate : Tools
| 33***54 | Tools Bag | 1 |
| 37***30 | Union | 1 |
| 82***79 | Wrench (24) | 1 |
Work Equipment
Komatsu : Sk815-5(S/N 37bf00006-Up) : Work Equipment : Arm
| 31***54 | Cable For Fastener | 1 |
| 37***11 | Pin | 4 |
| 37***21 | Pin | 2 |
Komatsu : Sk815-5(S/N 37bf00006-Up) : Work Equipment : Bucket
| 37***11 | Bucket L=1730 mm (Europe) | 1 |
| 37***20 | Bucket L=1730 mm (Europe) | 1 |
| 37***11 | Bucket L=1730 mm (Usa) | 1 |
Komatsu : Sk815-5(S/N 37bf00006-Up) : Work Equipment : Bucket Tipping Cylinder (L.H.)
| 37***01 | Bucket Tipping Cilinder (L.H.), Assembly | 1 |
| 37***20 | Cylinder Head | 1 |
| 37***01 | Cylinder | 1 |
Komatsu : Sk815-5(S/N 37bf00006-Up) : Work Equipment : Bucket Tipping Cylinder (R.H.)
| 37***20 | Cylinder Head | 11 |
| 37***01 | Bucket Tipping Cylinder (R.H.), Assembly | 1 |
| 37***01 | Piston Rod | 1 |
Komatsu : Sk815-5(S/N 37bf00006-Up) : Work Equipment : Fork
| 37***10 | Fork | 1 |
| 37***20 | Frame | 1 |
| 82***59 | Tooth | 2 |
Komatsu : Sk815-5(S/N 37bf00006-Up) : Work Equipment : Frame, Tool Bar (Europe)
| 20***50 | Handle | 1 |
| 33***17 | Connecting Rod | 2 |
| 33***18 | Link | 1 |
Komatsu : Sk815-5(S/N 37bf00006-Up) : Work Equipment : Frame, Tool Bar (Usa)
| 33***30 | Pushrod | 4 |
| 33***33 | Spacer | 2 |
| 37***51 | Pin | 4 |
Komatsu : Sk815-5(S/N 37bf00006-Up) : Work Equipment : Lifting Cylinder
| 37***20 | Cylinder Head | 1 |
| 37***01 | Lifting Cylinder, Assembly | 1 |
| 37***01 | Cylinder | 1 |
Work Equipment Control System
Komatsu : Sk815-5(S/N 37bf00006-Up) : Work Equipment Control System : Control Valve (Float) (1/11)
| 01***65 | Capscrew | 4 |
| 01***23 | Washer,(For Shipping) | 8 |
| 07***07 | O-Ring - (K10) | 2 |
Komatsu : Sk815-5(S/N 37bf00006-Up) : Work Equipment Control System : Control Valve (Float) (10/11)
| 01***08 | Nut (Op) | 1 |
| 07***11 | O-Ring,(Tm8202-009) | 2 |
| 07***34 | O-Ring,(For Without Brake Assistor) | 1 |
Komatsu : Sk815-5(S/N 37bf00006-Up) : Work Equipment Control System : Control Valve (Float) (11/11)
| 01***20 | Screw | 2 |
| 01***50 | Screw | 2 |
| 07***07 | O-Ring - (K10) | 1 |
Komatsu : Sk815-5(S/N 37bf00006-Up) : Work Equipment Control System : Control Valve (Float) (2/11)
| 07***23 | O-Ring; Was 07002-10823, O-Ring,(Not Shown) | 3 |
| 72***51 | Seat, Nozzle Spring | 1 |
| 72***60 | Screw | 1 |
Komatsu : Sk815-5(S/N 37bf00006-Up) : Work Equipment Control System : Control Valve (Float) (3/11)
| 07***23 | O-Ring,(For 2nd Travel Speed) (Op) | 1 |
| 07***34 | O-Ring,(For 2-Actuater Attachment) | 2 |
| 72***50 | O-Ring | 2 |
Komatsu : Sk815-5(S/N 37bf00006-Up) : Work Equipment Control System : Control Valve (Float) (4/11)
| 01***20 | Screw | 5 |
| 01***25 | Screw | 7 |
| 07***07 | O-Ring - (K10) | 2 |
Komatsu : Sk815-5(S/N 37bf00006-Up) : Work Equipment Control System : Control Valve (Float) (5/11)
| 07***23 | O-Ring,(For 2nd Travel Speed) (Op) | 1 |
| 07***23 | O-Ring (K8) | 5 |
| 70***20 | Plug | 1 |
Komatsu : Sk815-5(S/N 37bf00006-Up) : Work Equipment Control System : Control Valve (Float) (6/11)
| 07***23 | O-Ring,(F4350-66a1 -1c ) | 1 |
| 70***20 | O-Ring | 1 |
| 70***60 | O-Ring | 5 |
Komatsu : Sk815-5(S/N 37bf00006-Up) : Work Equipment Control System : Control Valve (Float) (7/11)
| 07***34 | O-Ring,(For Without Brake Assistor) | 1 |
| 70***30 | O-Ring | 2 |
| 70***61 | Coil | 1 |
Komatsu : Sk815-5(S/N 37bf00006-Up) : Work Equipment Control System : Control Valve (Float) (8/11)
| 01***10 | Screw | 2 |
| 01***40 | Screw | 2 |
| 01***50 | Screw | 6 |
Komatsu : Sk815-5(S/N 37bf00006-Up) : Work Equipment Control System : Control Valve (Float) (9/11)
Komatsu : Sk815-5(S/N 37bf00006-Up) : Work Equipment Control System : Control Valve (High-Flow) (1/11)
| 01***65 | Capscrew | 4 |
| 01***23 | Washer,(For Shipping) | 8 |
| 07***07 | O-Ring - (K10) | 2 |
Komatsu : Sk815-5(S/N 37bf00006-Up) : Work Equipment Control System : Control Valve (High-Flow) (10/11)
| 01***08 | Nut (Op) | 1 |
| 07***11 | O-Ring,(Tm8202-009) | 1 |
| 07***34 | O-Ring,(For Without Brake Assistor) | 1 |
Komatsu : Sk815-5(S/N 37bf00006-Up) : Work Equipment Control System : Control Valve (High-Flow) (11/11)
| 01***20 | Screw | 2 |
| 01***50 | Screw | 2 |
| 07***07 | O-Ring - (K10) | 1 |
Komatsu : Sk815-5(S/N 37bf00006-Up) : Work Equipment Control System : Control Valve (High-Flow) (2/11)
| 07***23 | O-Ring; Was 07002-10823, O-Ring,(Not Shown) | 3 |
| 72***51 | Seat, Nozzle Spring | 1 |
| 72***60 | Screw | 1 |
Komatsu : Sk815-5(S/N 37bf00006-Up) : Work Equipment Control System : Control Valve (High-Flow) (3/11)
| 07***23 | O-Ring,(For 2nd Travel Speed) (Op) | 1 |
| 07***34 | O-Ring,(For 2-Actuater Attachment) | 2 |
| 72***50 | O-Ring | 2 |
Komatsu : Sk815-5(S/N 37bf00006-Up) : Work Equipment Control System : Control Valve (High-Flow) (4/11)
| 01***20 | Screw | 5 |
| 01***25 | Screw | 7 |
| 07***07 | O-Ring - (K10) | 2 |
Komatsu : Sk815-5(S/N 37bf00006-Up) : Work Equipment Control System : Control Valve (High-Flow) (5/11)
| 07***23 | O-Ring,(For 2nd Travel Speed) (Op) | 1 |
| 07***23 | O-Ring (K8) | 5 |
| 70***20 | Plug | 1 |
Komatsu : Sk815-5(S/N 37bf00006-Up) : Work Equipment Control System : Control Valve (High-Flow) (6/11)
| 07***23 | O-Ring,(F4350-66a1 -1c ) | 1 |
| 70***20 | O-Ring | 1 |
| 70***60 | O-Ring | 5 |
Komatsu : Sk815-5(S/N 37bf00006-Up) : Work Equipment Control System : Control Valve (High-Flow) (7/11)
| 07***34 | O-Ring,(For Without Brake Assistor) | 1 |
| 70***30 | O-Ring | 2 |
| 70***61 | Coil | 1 |
Komatsu : Sk815-5(S/N 37bf00006-Up) : Work Equipment Control System : Control Valve (High-Flow) (8/11)
| 01***10 | Screw | 2 |
| 01***40 | Screw | 2 |
| 01***50 | Screw | 6 |
Komatsu : Sk815-5(S/N 37bf00006-Up) : Work Equipment Control System : Control Valve (High-Flow) (9/11)
| 07***24 | O-Ring | 1 |
| 07***23 | O-Ring,(F4350-66a1 -1c ) | 2 |
| 07***23 | O-Ring,(For 2nd Travel Speed) (Op) | 2 |
Komatsu : Sk815-5(S/N 37bf00006-Up) : Work Equipment Control System : Control Valve (Standard) (1/11)
| 01***65 | Capscrew | 4 |
| 01***23 | Washer,(For Shipping) | 8 |
| 07***07 | O-Ring - (K10) | 2 |
Komatsu : Sk815-5(S/N 37bf00006-Up) : Work Equipment Control System : Control Valve (Standard) (10/11)
| 01***08 | Nut (Op) | 1 |
| 07***11 | O-Ring,(Tm8202-009) | 2 |
| 07***34 | O-Ring,(For Without Brake Assistor) | 1 |
Komatsu : Sk815-5(S/N 37bf00006-Up) : Work Equipment Control System : Control Valve (Standard) (11/11)
| 01***20 | Screw | 2 |
| 01***50 | Screw | 2 |
| 07***07 | O-Ring - (K10) | 1 |
Komatsu : Sk815-5(S/N 37bf00006-Up) : Work Equipment Control System : Control Valve (Standard) (2/11)
| 07***23 | O-Ring; Was 07002-10823, O-Ring,(Not Shown) | 3 |
| 72***51 | Seat, Nozzle Spring | 1 |
| 72***60 | Screw | 1 |
Komatsu : Sk815-5(S/N 37bf00006-Up) : Work Equipment Control System : Control Valve (Standard) (3/11)
| 07***23 | O-Ring,(For 2nd Travel Speed) (Op) | 1 |
| 07***34 | O-Ring,(For 2-Actuater Attachment) | 2 |
| 72***50 | O-Ring | 2 |
Komatsu : Sk815-5(S/N 37bf00006-Up) : Work Equipment Control System : Control Valve (Standard) (4/11)
| 01***20 | Screw | 5 |
| 01***25 | Screw | 7 |
| 07***07 | O-Ring - (K10) | 2 |
Komatsu : Sk815-5(S/N 37bf00006-Up) : Work Equipment Control System : Control Valve (Standard) (5/11)
| 07***23 | O-Ring,(For 2nd Travel Speed) (Op) | 1 |
| 07***23 | O-Ring (K8) | 5 |
| 70***20 | Plug | 1 |
Komatsu : Sk815-5(S/N 37bf00006-Up) : Work Equipment Control System : Control Valve (Standard) (6/11)
| 07***23 | O-Ring,(F4350-66a1 -1c ) | 1 |
| 70***20 | O-Ring | 1 |
| 70***60 | O-Ring | 5 |
Komatsu : Sk815-5(S/N 37bf00006-Up) : Work Equipment Control System : Control Valve (Standard) (7/11)
| 70***30 | O-Ring | 1 |
| 72***20 | O-Ring | 1 |
| 72***50 | O-Ring | 1 |
Komatsu : Sk815-5(S/N 37bf00006-Up) : Work Equipment Control System : Control Valve (Standard) (8/11)
| 01***40 | Screw | 2 |
| 01***50 | Screw | 6 |
| 70***60 | O-Ring | 21 |
Komatsu : Sk815-5(S/N 37bf00006-Up) : Work Equipment Control System : Control Valve (Standard) (9/11)
| 07***23 | O-Ring,(F4350-66a1 -1c ) | 2 |
| 70***60 | Plug | 2 |
| (7***6) | Control Valve, Assembly | 1 |
Komatsu : Sk815-5(S/N 37bf00006-Up) : Work Equipment Control System : Control Valve (Super High-Flow) (1/13)
| 01***23 | Washer,(For Shipping) | 8 |
| 07***07 | O-Ring - (K10) | 2 |
| 07***08 | O-Ring,(Tm8202-005) | 1 |
Komatsu : Sk815-5(S/N 37bf00006-Up) : Work Equipment Control System : Control Valve (Super High-Flow) (10/13)
| 01***08 | Nut (Op) | 1 |
| 07***11 | O-Ring,(Tm8202-009) | 1 |
| 07***34 | O-Ring,(For Without Brake Assistor) | 1 |
Komatsu : Sk815-5(S/N 37bf00006-Up) : Work Equipment Control System : Control Valve (Super High-Flow) (11/13)
| 01***40 | Screw | 2 |
| 01***50 | Screw | 4 |
| 07***07 | O-Ring - (K10) | 1 |
Komatsu : Sk815-5(S/N 37bf00006-Up) : Work Equipment Control System : Control Valve (Super High-Flow) (12/13)
| 01***20 | Screw | 4 |
| 01***30 | Screw | 2 |
| 01***40 | Screw | 3 |
Komatsu : Sk815-5(S/N 37bf00006-Up) : Work Equipment Control System : Control Valve (Super High-Flow) (13/13)
| 07***07 | O-Ring - (K10) | 1 |
| 07***18 | O-Ring, Divider Valve Mounting | 1 |
| 07***00 | O-Ring,(Y1620-11a0a-11) | 1 |
Komatsu : Sk815-5(S/N 37bf00006-Up) : Work Equipment Control System : Control Valve (Super High-Flow) (2/13)
| 07***23 | O-Ring; Was 07002-10823, O-Ring,(Not Shown) | 3 |
| 72***51 | Seat, Nozzle Spring | 1 |
| 72***60 | Screw | 1 |
Komatsu : Sk815-5(S/N 37bf00006-Up) : Work Equipment Control System : Control Valve (Super High-Flow) (3/13)
| 07***23 | O-Ring,(For 2nd Travel Speed) (Op) | 1 |
| 07***34 | O-Ring,(For 2-Actuater Attachment) | 2 |
| 72***50 | O-Ring | 2 |
Komatsu : Sk815-5(S/N 37bf00006-Up) : Work Equipment Control System : Control Valve (Super High-Flow) (4/13)
| 01***20 | Screw | 5 |
| 01***25 | Screw | 7 |
| 07***07 | O-Ring - (K10) | 2 |
Komatsu : Sk815-5(S/N 37bf00006-Up) : Work Equipment Control System : Control Valve (Super High-Flow) (5/13)
| 07***23 | O-Ring,(For 2nd Travel Speed) (Op) | 1 |
| 07***23 | O-Ring (K8) | 5 |
| 70***20 | Plug | 1 |
Komatsu : Sk815-5(S/N 37bf00006-Up) : Work Equipment Control System : Control Valve (Super High-Flow) (6/13)
| 07***23 | O-Ring,(F4350-66a1 -1c ) | 1 |
| 70***20 | O-Ring | 1 |
| 70***60 | O-Ring | 5 |
Komatsu : Sk815-5(S/N 37bf00006-Up) : Work Equipment Control System : Control Valve (Super High-Flow) (7/13)
| 07***34 | O-Ring,(For Without Brake Assistor) | 1 |
| 70***30 | O-Ring | 2 |
| 70***61 | Coil | 1 |
Komatsu : Sk815-5(S/N 37bf00006-Up) : Work Equipment Control System : Control Valve (Super High-Flow) (8/13)
| 01***10 | Screw | 2 |
| 01***40 | Screw | 2 |
| 01***50 | Screw | 6 |
Komatsu : Sk815-5(S/N 37bf00006-Up) : Work Equipment Control System : Control Valve (Super High-Flow) (9/13)
| 07***24 | O-Ring | 1 |
| 07***23 | O-Ring,(F4350-66a1 -1c ) | 3 |
| 07***23 | O-Ring,(For 2nd Travel Speed) (Op) | 2 |
Komatsu : Sk815-5(S/N 37bf00006-Up) : Work Equipment Control System : Final Drive (1/4)
| 37***01 | Travel Motor, Assembly | 2 |
| FU***25 | Screw | 5 |
| FU***AS | Hydraulic Motor, Assembly | 1 |
Komatsu : Sk815-5(S/N 37bf00006-Up) : Work Equipment Control System : Final Drive (2/4)
| FU***02 | Body | 1 |
| FU***35 | Screw | 2 |
| FU***60 | Kit, Shaft | 1 |
Komatsu : Sk815-5(S/N 37bf00006-Up) : Work Equipment Control System : Final Drive (3/4)
| FU***7A | Valve, Assembly | 1 |
| FU***57 | Kit, Gasket | 1 |
| (3***1) | Travel Motor, Assembly | 2 |
Komatsu : Sk815-5(S/N 37bf00006-Up) : Work Equipment Control System : Final Drive (4/4)
| FU***57 | Kit, Gasket | 1 |
| (F***A) | Valve, Assembly | 1 |
| (3***1) | Travel Motor, Assembly | 2 |
Komatsu : Sk815-5(S/N 37bf00006-Up) : Work Equipment Control System : Hydraulic Piping (Attachment Line) (1/2)
| 37***41 | Hose | 1 |
| 37***40 | Union | 2 |
| 37***21 | Hose | 1 |
Komatsu : Sk815-5(S/N 37bf00006-Up) : Work Equipment Control System : Hydraulic Piping (Attachment Line) (2/2)
| 20***82 | Coupling, Assembly | 1 |
| 20***86 | Coupling, Assembly | 1 |
| 37***20 | Union | 2 |
Komatsu : Sk815-5(S/N 37bf00006-Up) : Work Equipment Control System : Hydraulic Piping (Attachment Line) (High-Flow Super)
| 20***82 | Coupling, Assembly | 1 |
| 20***84 | Coupling, Assembly | 2 |
| 20***86 | Coupling, Assembly | 1 |
Komatsu : Sk815-5(S/N 37bf00006-Up) : Work Equipment Control System : Hydraulic Piping (Attachment Line) (High-Flow)
| 20***82 | Coupling, Assembly | 1 |
| 20***84 | Coupling, Assembly | 1 |
| 20***87 | Coupling, Assembly | 1 |
Komatsu : Sk815-5(S/N 37bf00006-Up) : Work Equipment Control System : Hydraulic Piping (Bucket Lifting Cylinder)
| 37***20 | Bracket | 1 |
| 37***20 | Union | 2 |
| 37***40 | Collar | 1 |
Komatsu : Sk815-5(S/N 37bf00006-Up) : Work Equipment Control System : Hydraulic Piping (Bucket Tipping Cylinder)
| 37***20 | Union | 2 |
| 37***20 | Union | 1 |
| 37***41 | Hose | 4 |
Komatsu : Sk815-5(S/N 37bf00006-Up) : Work Equipment Control System : Hydraulic Piping (Drain Line)
| 37***70 | Elbow | 2 |
| 37***22 | Hose | 1 |
| 37***60 | Sleeve | 1 |
Komatsu : Sk815-5(S/N 37bf00006-Up) : Work Equipment Control System : Hydraulic Piping (Oil Cooler And Return Line) : Unit_02_of_02
| 37***22 | Hose | 1 |
| 37***24 | Hose | 1 |
| 37***90 | Pipe | 1 |
Komatsu : Sk815-5(S/N 37bf00006-Up) : Work Equipment Control System : Hydraulic Piping (Oil Cooler And Return Line) : Unit_01_of_02
| 30***60 | Union | 1 |
| 37***12 | Hose | 1 |
| 37***40 | Hose | 1 |
Komatsu : Sk815-5(S/N 37bf00006-Up) : Work Equipment Control System : Hydraulic Piping (Pattern Change) (Usa) (1/3)
| 37***40 | Kit, Switch | 1 |
| 37***61 | Union | 6 |
| 37***10 | Hose | 4 |
Komatsu : Sk815-5(S/N 37bf00006-Up) : Work Equipment Control System : Hydraulic Piping (Pattern Change) (Usa) (2/3)
| 37***10 | Union | 2 |
| 37***61 | Union | 5 |
| 37***31 | Hose | 1 |
Komatsu : Sk815-5(S/N 37bf00006-Up) : Work Equipment Control System : Hydraulic Piping (Pattern Change) (Usa) (3/3)
| 37***10 | Union | 2 |
| 37***80 | Union | 4 |
| 37***70 | Valve | 4 |
Komatsu : Sk815-5(S/N 37bf00006-Up) : Work Equipment Control System : Hydraulic Piping (Ppc Valve Delivery Line) (For Road Circulation)
| 33***00 | Block | 1 |
| 37***11 | Hose | 1 |
| 37***40 | Pipe | 2 |
Komatsu : Sk815-5(S/N 37bf00006-Up) : Work Equipment Control System : Hydraulic Piping (Servocontrol Line) (1/2)
| 37***70 | Block | 1 |
| 37***10 | Hose | 4 |
| 37***20 | Hose | 2 |
Komatsu : Sk815-5(S/N 37bf00006-Up) : Work Equipment Control System : Hydraulic Piping (Servocontrol Line) (2/2)
| 20***20 | Plug | 1 |
| 37***11 | Hose | 1 |
| 37***40 | Union | 2 |
Komatsu : Sk815-5(S/N 37bf00006-Up) : Work Equipment Control System : Hydraulic Piping (Suction And Delivery Line)
| 37***11 | Support | 1 |
| 37***40 | Spacer | 3 |
| 37***91 | Union | 1 |
Komatsu : Sk815-5(S/N 37bf00006-Up) : Work Equipment Control System : Hydraulic Piping (Suction And Delivery Line) (High-Flow)
| 37***11 | Support | 1 |
| 37***40 | Spacer | 3 |
| 37***10 | Union | 2 |
Komatsu : Sk815-5(S/N 37bf00006-Up) : Work Equipment Control System : Hydraulic Piping (Travel Motor Line)
| 37***40 | Elbow | 2 |
| 37***50 | Elbow | 2 |
| 37***11 | Hose | 3 |
Komatsu : Sk815-5(S/N 37bf00006-Up) : Work Equipment Control System : Hydraulic Pump (High-Flow) (1/12)
| 07***14 | Plug, (For Shipping) | 2 |
| 07***12 | Plug,Magnetic | 2 |
| 70***20 | Plug | 4 |
Komatsu : Sk815-5(S/N 37bf00006-Up) : Work Equipment Control System : Hydraulic Pump (High-Flow) (10/12)
| 70***10 | O-Ring | 4 |
| 72***10 | Valve, Assembly | 4 |
| 72***60 | Plug | 4 |
Komatsu : Sk815-5(S/N 37bf00006-Up) : Work Equipment Control System : Hydraulic Pump (High-Flow) (11/12)
| 70***10 | O-Ring | 1 |
| (****0) | Spring | 1 |
| (****0) | Valve | 1 |
Komatsu : Sk815-5(S/N 37bf00006-Up) : Work Equipment Control System : Hydraulic Pump (High-Flow) (12/12)
| 01***30 | Screw | 2 |
| 01***32 | Washer,(With Auto Emergency Steering) | 2 |
| 07***80 | O-Ring (Kit) | 1 |
Komatsu : Sk815-5(S/N 37bf00006-Up) : Work Equipment Control System : Hydraulic Pump (High-Flow) (2/12)
| 01***30 | Screw | 6 |
| 04***20 | Ring, Snap | 1 |
| 70***80 | Seal,Oil | 1 |
Komatsu : Sk815-5(S/N 37bf00006-Up) : Work Equipment Control System : Hydraulic Pump (High-Flow) (3/12)
| 70***50 | O-Ring | 2 |
| (****0) | Plug | 1 |
| (****1) | Spool | 1 |
Komatsu : Sk815-5(S/N 37bf00006-Up) : Work Equipment Control System : Hydraulic Pump (High-Flow) (4/12)
| 01***25 | Screw | 8 |
| 70***50 | O-Ring | 2 |
| 72***40 | Plug | 2 |
Komatsu : Sk815-5(S/N 37bf00006-Up) : Work Equipment Control System : Hydraulic Pump (High-Flow) (5/12)
| 01***55 | Screw | 4 |
| 07***12 | Plug,(For Without Brake Assistor) | 1 |
| 70***20 | Plug | 1 |
Komatsu : Sk815-5(S/N 37bf00006-Up) : Work Equipment Control System : Hydraulic Pump (High-Flow) (6/12)
| 70***50 | O-Ring | 2 |
| 72***40 | Plug | 2 |
| (****0) | Plug | 1 |
Komatsu : Sk815-5(S/N 37bf00006-Up) : Work Equipment Control System : Hydraulic Pump (High-Flow) (7/12)
| 01***25 | Screw | 8 |
| 70***50 | O-Ring | 2 |
| 72***40 | Plug | 2 |
Komatsu : Sk815-5(S/N 37bf00006-Up) : Work Equipment Control System : Hydraulic Pump (High-Flow) (8/12)
| (****0) | Joint | 1 |
| (****0) | Joint | 1 |
| (7***3) | Hydraulic Pump, Assembly. (High-Flow) | 1 |
Komatsu : Sk815-5(S/N 37bf00006-Up) : Work Equipment Control System : Hydraulic Pump (High-Flow) (9/12)
| 01***25 | Screw | 3 |
| 07***12 | O-Ring, Divider Valve Mounting | 3 |
| 07***16 | O-Ring,Suction And Relief Valve | 1 |
Komatsu : Sk815-5(S/N 37bf00006-Up) : Work Equipment Control System : Hydraulic Pump (Standard) (1/12)
| 07***14 | Plug, (For Shipping) | 2 |
| 07***12 | Plug,Magnetic | 2 |
| 70***20 | Plug | 4 |
Komatsu : Sk815-5(S/N 37bf00006-Up) : Work Equipment Control System : Hydraulic Pump (Standard) (10/12)
| 70***10 | O-Ring | 4 |
| 72***10 | Valve, Assembly | 4 |
| 72***60 | Plug | 4 |
Komatsu : Sk815-5(S/N 37bf00006-Up) : Work Equipment Control System : Hydraulic Pump (Standard) (11/12)
| 70***10 | O-Ring | 1 |
| (****0) | Spring | 1 |
| (****0) | Valve | 1 |
Komatsu : Sk815-5(S/N 37bf00006-Up) : Work Equipment Control System : Hydraulic Pump (Standard) (12/12)
| 01***30 | Screw | 2 |
| 01***32 | Washer,(With Auto Emergency Steering) | 2 |
| 07***80 | O-Ring (Kit) | 1 |
Komatsu : Sk815-5(S/N 37bf00006-Up) : Work Equipment Control System : Hydraulic Pump (Standard) (2/12)
| 01***30 | Screw | 6 |
| 04***20 | Ring, Snap | 1 |
| 70***80 | Seal,Oil | 1 |
Komatsu : Sk815-5(S/N 37bf00006-Up) : Work Equipment Control System : Hydraulic Pump (Standard) (3/12)
| 70***50 | O-Ring | 2 |
| (****0) | Plug | 1 |
| (****1) | Spool | 1 |
Komatsu : Sk815-5(S/N 37bf00006-Up) : Work Equipment Control System : Hydraulic Pump (Standard) (4/12)
| 01***25 | Screw | 8 |
| 70***50 | O-Ring | 2 |
| 72***40 | Plug | 2 |
Komatsu : Sk815-5(S/N 37bf00006-Up) : Work Equipment Control System : Hydraulic Pump (Standard) (5/12)
| 01***55 | Screw | 4 |
| 07***12 | Plug,(For Without Brake Assistor) | 1 |
| 70***20 | Plug | 1 |
Komatsu : Sk815-5(S/N 37bf00006-Up) : Work Equipment Control System : Hydraulic Pump (Standard) (6/12)
| 70***50 | O-Ring | 2 |
| 72***40 | Plug | 2 |
| (****0) | Plug | 1 |
Komatsu : Sk815-5(S/N 37bf00006-Up) : Work Equipment Control System : Hydraulic Pump (Standard) (7/12)
| 01***25 | Screw | 8 |
| 70***20 | Plug | 2 |
| 70***50 | O-Ring | 2 |
Komatsu : Sk815-5(S/N 37bf00006-Up) : Work Equipment Control System : Hydraulic Pump (Standard) (8/12)
| (****0) | Joint | 1 |
| (****0) | Joint | 1 |
| (****0) | Gear, Assembly | 1 |
Komatsu : Sk815-5(S/N 37bf00006-Up) : Work Equipment Control System : Hydraulic Pump (Standard) (9/12)
Komatsu : Sk815-5(S/N 37bf00006-Up) : Work Equipment Control System : Hydraulic Tank
| 21***20 | Filter | 1 |
| 33***15 | Washer | 1 |
| 37***10 | Plug | 1 |
Komatsu : Sk815-5(S/N 37bf00006-Up) : Work Equipment Control System : L.H. Servocontrol
| 37***80 | Union | 4 |
| 37***70 | Valve | 4 |
| 37***70 | Clamp | 4 |
Komatsu : Sk815-5(S/N 37bf00006-Up) : Work Equipment Control System : Ppc Valve (Attachment)
| 89***83 | Ppc Valve | 1 |
| 89***12 | Body Valve | 1 |
| 89***13 | Shim, 0.300 mm | 2 |
Komatsu : Sk815-5(S/N 37bf00006-Up) : Work Equipment Control System : Ppc Valve (Work Equipment)
| 01***20 | Bolt,(Without Air Con. Or Heater) | 4 |
| 07***20 | O-Ring,(0202-007) | 4 |
| 07***70 | O-Ring (Kit) | 1 |
Komatsu : Sk815-5(S/N 37bf00006-Up) : Work Equipment Control System : Ppc Valve, L.H. (2-Switch) (Pattern Change)
| 01***30 | Bolt,(With Body Positioner) | 1 |
| 01***10 | Nut (K10) | 1 |
| 01***32 | Washer,(With Auto Emergency Steering) | 1 |
Komatsu : Sk815-5(S/N 37bf00006-Up) : Work Equipment Control System : Ppc Valve, L.H. (4 Switch) (Standard)
| 01***30 | Bolt,(With Body Positioner) | 1 |
| 01***10 | Nut (K10) | 1 |
| 01***32 | Washer,(With Auto Emergency Steering) | 1 |
Komatsu : Sk815-5(S/N 37bf00006-Up) : Work Equipment Control System : Ppc Valve, L.H. (4-Switch) (Pattern Change)
| 01***30 | Bolt,(With Body Positioner) | 1 |
| 01***10 | Nut (K10) | 1 |
| 01***32 | Washer,(With Auto Emergency Steering) | 1 |
Komatsu : Sk815-5(S/N 37bf00006-Up) : Work Equipment Control System : Ppc Valve, L.H. (Standard)
| 01***30 | Bolt,(With Body Positioner) | 1 |
| 01***10 | Nut (K10) | 1 |
| 01***32 | Washer,(With Auto Emergency Steering) | 1 |
Komatsu : Sk815-5(S/N 37bf00006-Up) : Work Equipment Control System : Ppc Valve, R.H. (4-Switch) (Optional)
| 01***30 | Bolt,(With Body Positioner) | 1 |
| 01***10 | Nut (K10) | 1 |
| 01***32 | Washer,(With Auto Emergency Steering) | 1 |
Komatsu : Sk815-5(S/N 37bf00006-Up) : Work Equipment Control System : Ppc Valve, R.H., Assy.
| 01***30 | Bolt,(With Body Positioner) | 1 |
| 01***10 | Nut (K10) | 1 |
| 01***32 | Washer,(With Auto Emergency Steering) | 1 |
Komatsu : Sk815-5(S/N 37bf00006-Up) : Work Equipment Control System : Ppc Valve, Transaltion (Pattern Change)
| 01***20 | Bolt,(Without Air Con. Or Heater) | 4 |
| 07***20 | O-Ring,(0202-007) | 4 |
| 07***70 | O-Ring (Kit) | 1 |
Komatsu : Sk815-5(S/N 37bf00006-Up) : Work Equipment Control System : Ppc Valve, Translation
| 01***20 | Bolt,(Without Air Con. Or Heater) | 4 |
| 01***40 | Screw | 2 |
| 07***20 | O-Ring,(0202-007) | 4 |
Komatsu : Sk815-5(S/N 37bf00006-Up) : Work Equipment Control System : R.H. Servocontrol
| 37***10 | Union | 4 |
| 37***70 | Clamp | 4 |
| 37***80 | Plate | 1 |
Komatsu : Sk815-5(S/N 37bf00006-Up) : Work Equipment Control System : Valve (Pattern Change)
| 01***10 | Screw | 2 |
| 01***16 | Capscrew | 3 |
| 01***25 | Screw | 3 |
SK815-5(S/N 37BF00006-Up) serial number reference
The ID/PIN plate is riveted to the left side at the rear of the machine, under the left support arm, with a duplicate serial stamped into the frame nearby. To read the prefix, take the characters before the sequential digits: the leading digits (37) mark the SK wheel-loader chassis platform, the following letter (A or B) size-codes the model family (A for the SK714 class, B for the SK815 class), and a trailing T flags the turbocharged engine option; the digits that follow are the production sequence number.
| Prefix | Identifies | Notes |
|---|---|---|
| 37BF | SK815-5 (naturally aspirated base model, S/N 37BF00006-Up) | Target range for this model. Fitted with a Komatsu 4D84E naturally aspirated diesel rated near 36 kW (48.5 hp). A later parts-book break exists within this same 37BF prefix around unit 900-and-up; it is the same model and prefix, not a separate variant. |
| 37AF | SK714-5 (smaller sibling platform, non-turbo) | Covered in the same factory shop-manual set as the SK815-5. Smaller-frame sibling chassis fitted with a Komatsu 4D88E naturally aspirated diesel rated near 35 kW (46.8 hp). |
| 37BTF | SK815-5 Turbo (turbocharged variant of the SK815-5 platform) | Same shop-manual family as the SK815-5, sharing the 37B chassis code with a T for the turbo engine option. Uses the turbocharged S4D84E variant of the 4D84E diesel family for higher output than the naturally aspirated base unit. Documented starting sequence number varies by source (some references start near unit 3, others near unit 224); treat as the same prefix with the range start varying by document. |
| A | SK815-5N / SK815-5NA (later redesign carrying the SK815-5 nameplate) | Confirm with dealer. Sourced from a single manual listing rather than independently corroborated. Uses a different serial format (letter A plus sequential digits, e.g. A30001-Up for 5N, A10001-Up for 5NA) instead of the 37BF pattern, so treat as a distinct production run rather than a continuation of the 37BF range. |
Frequently asked questions
What engine powers the Komatsu SK815-5 (S/N 37BF00006-Up)?
This base 37BF-prefix configuration runs a Komatsu 4D84E four-cylinder diesel in its standard, non-turbo tune, rated 36.2 kW (48.5 hp) at 2,600 rpm. A turbocharged S4D84E variant of the same engine family powers the separately-serialed SK815-5 Turbo built on the same platform at a higher output; that variant carries a different serial prefix and is not part of this range.
What is the operating weight of the SK815-5 (S/N 37BF00006-Up)?
Operating weight runs approximately 2,630-2,890 kg (5,785-6,370 lb). Published figures vary by source and equipped configuration such as tires, cab, and counterweight, so treat this as a range rather than one fixed number and verify against the specific machine's data plate for exact figures.
What replaced the Komatsu SK815-5?
Komatsu replaced the SK815-5 with the SK815-5E0 in 2017, an emissions-tier redesign carrying the same nameplate. The wider compact loader lineup has since moved to newer-generation Komatsu platforms, so this original SK815-5 generation is out of production and now a used-equipment and parts-market machine.
What SK815-5(S/N 37BF00006-Up) owners discuss
What causes a Komatsu SK815-5 platform machine to suddenly lose all hydraulics (no lift, no curl, no travel) after sitting?
Reports describe the machine coming up completely dead after sitting idle: caution light stays lit, the brake-release button lights up but nothing responds, no lift, no curl, no travel in either direction. Techs work the problem in this order: check hydrostatic oil level and top up, inspect and replace the suction filter if clogged, check the flexible coupling on the pump drive for wear or slip, and check the relief valves for dirt or a stuck poppet. Before opening the transmission, rule out the seat and parking-brake interlock switches and their fuses. A misadjusted seat switch produces the identical symptom set and is far cheaper to fix. Have your dealer verify the parking-brake release and interlock wiring before returning the machine to service.
The PPC servo joystick controls or auxiliary loader hydraulics feel weak or uneven. What do mechanics check first?
The loader runs on Komatsu's PPC (proportional pressure control) servo joysticks, one lever for boom and bucket, one for travel and steer. Healthy units are described as light and precise. When one function goes soft or won't work alongside another, the usual order is: bleed air from the cylinders and lines, including under the cab, before blaming the pump. Then check the PPC lock solenoid fuse and its wiring and connectors. Only after that, pull the valve block and inspect spools and relief cartridges for debris or worn seals.
What wear patterns typically show up on this wheeled loader's tires and drivetrain?
This is a wheeled chassis, not tracked, so wear shows up in tires and wheel motors rather than track chain and rollers. Stock tires run a 10-16.5 section on an 8-bolt wheel pattern. Operators doing abrasive yard or demolition work often step up to a flat-free or solid-fill tire to avoid the sidewall cuts pneumatic tires take in that duty. On the drive side, listen for whine or growl from the wheel motors and final drives at speed. The hydrostatic drive runs a variable-displacement pump feeding axial-piston wheel motors, and bearing wear there announces itself audibly well before it fails outright.
What's the real-world personality of the naturally aspirated diesel on this serial range: power, cold starting, maintenance quirks?
This serial range carries the naturally aspirated, non-turbo diesel rated at 36.2 kW / 48.5 hp. No turbo lag and nothing to fail on a wastegate, but power is generally described as adequate rather than strong for the machine's weight class, especially with heavier attachments. Cold starts need a real glow-plug preheat cycle, roughly 20 to 30 seconds, before cranking in cold weather; skip it and you get white smoke and rough running until the engine warms up. One maintenance quirk worth knowing: the factory manual calls for periodic valve lash adjustment as routine scheduled service on this engine, not a rare intervention, so budget for it rather than treating it as a symptom of a problem.
What electrical or sensor issue comes up most often on these machines?
The seat safety switch is the recurring complaint. It locks out all loader and drive hydraulics the moment the operator isn't sensed in the seat, but the switch itself goes bad or drifts out of adjustment often enough that it's the first thing techs check on a machine with dead hydraulics, ahead of the pump or valves. Symptoms match what looks like a major hydraulic failure: no lift, no curl, no travel, warning lights behaving oddly. Have your dealer verify the seat switch and its wiring rather than bypassing it. It is a safety interlock, not a nuisance sensor.
Is parts and dealer support a real concern with this machine today?
Worth planning around. This is a legacy platform now out of production, so parts increasingly route through Komatsu's parts network and aftermarket compact-equipment suppliers rather than a broad new-machine dealer floor. Consensus among owners is that this is manageable for routine wear items like filters, seals, and tires, but slower and pricier for drivetrain or hydraulic components. Confirm a dealer or aftermarket compact-equipment supplier can still source parts for this model before relying on it for daily production work.
What should I check before buying a used Komatsu SK815-5 (S/N 37BF00006-Up)?
Confirm the serial number actually falls in the 37BF00006-and-up range before comparing specs or ordering parts. Komatsu reused the SK815-5 nameplate across naturally aspirated and turbo/Super Flow variants with different serial prefixes, and mixing them up gets you the wrong engine, filters, and fluid specs. Start the engine cold and listen for a smooth idle without excessive white or black smoke; confirm glow-plug preheat works. Run the hydrostatic drive in both directions and both speed ranges, checking for creep, shudder, or delayed response. Cycle boom, bucket, and auxiliary hydraulics fully and watch for sluggish or uneven function that suggests pump or valve wear. Test the seat safety switch and parking-brake interlock directly: sit down, stand up, and confirm hydraulics lock out and restore correctly. Check tires for uneven wear or sidewall damage and wheel motors for play or leaks. Ask for maintenance records, especially oil and filter change intervals and any valve lash adjustment history. Have your dealer verify the interlock and brake-release circuit before putting the machine into daily service.
Compiled from owner and technician discussions across the industry — experiences vary by serial range and machine history.
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