Komatsuengine(no series)
Komatsu SAA6D140E-3D-8(S/N 110001-UP (REAR ENGINE))
Maintenance schedule, common problems & OEM parts breakdown
The Komatsu PC1800-6 is a mining-class crawler hydraulic excavator in the 180,000-184,120 kg (396,800-405,900 lb) operating weight bracket, built roughly 2000 through the mid-2000s for quarry and large-scale mining production. Each PC1800-6 runs two Komatsu SAA6D140E-3 diesel engines mounted front and rear - a SAA6D140E-3C-8 up front and this SAA6D140E-3D-8 at the rear - combining for a factory flywheel rating of 676 kW (908 hp) at 1800 rpm. It followed earlier twin-engine PC1800-series excavators and offered backhoe and mass-excavation shovel fronts with bucket capacities from 5.6 to 12.0 m3 (7.7-15.7 yd3).
The dash-6 update added electronic engine governors and high-pressure fuel injection to both engines, trimming fuel burn against the prior generation and bringing the machine to Tier 2/EU Stage II emissions, with factory condition monitoring standard across the twin power train. Komatsu later dropped the twin-engine layout: the PC2000-8 successor runs one large single engine instead of a paired front/rear set, making the PC1800-6 the last machine in this twin-engine line. That leaves a sizeable installed base still working mining and quarry duty today, so correctly matched front (3C-8) versus rear (3D-8) engine parts stay in steady demand on the used and parts market.
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 SAA6D140E-3D-8(S/N 110001-UP (REAR ENGINE)) specifications
Engine
| Engine model | SAA6D140E-3D-8 (S/N 110001-UP) — rear engine of the twin front/rear engine set on the PC1800-6; paired with an SAA6D140E-3C-8 front engine of the same SAA6D140E-3 series |
| Configuration | In-line 6-cylinder diesel, turbocharged, air-to-air aftercooled |
| Bore x stroke | 140 mm x 165 mm |
| Displacement | 15.24 L (930 cu in) |
| Gross power (per engine) | Approx. 338 kW / 454 HP @ 1800 rpm, flywheel gross rating. Combined rating for both engines on this machine is 676 kW / 908 HP @ 1800 rpm |
| Net power (per engine) | Not published separately per engine in the factory literature reviewed |
| Emissions tier | Tier 2 generation, meeting EPA, EU Stage II, and Japan nonroad emissions requirements applicable to this engine generation |
Weights
| Operating weight (PC1800-6 host machine) | 180,000-184,120 kg (396,832-405,915 lb), varies with track shoe width fitted |
| Shipping weight | Not published separately from operating weight in the sources reviewed |
| Ground pressure | Approx. 1.74 kg/cm2 (24.7 psi) |
Dimensions
| Transport length | Approx. 17.2-19.4 m (56.4-63.6 ft), varies by shipping/knock-down configuration |
| Transport width | Approx. 5.4-6.0 m (17.8-19.7 ft), varies by shipping configuration |
| Transport height | Approx. 6.5-7.7 m (21.4-25.3 ft), varies by shipping configuration |
| Track gauge | 4.60 m (15.1 ft) |
| Ground clearance | 0.82 m (2.7 ft) |
| Tail swing radius | 6.25 m (20.5 ft) |
| Track shoe width | 1010 mm (39.8 in) |
Performance
| Max travel speed | 2.74 km/h (1.7 mph) |
| Bucket capacity | 5.6-12.0 m3 (7.7-15.7 yd3), depending on bucket type and application |
| Max digging depth | Approx. 10.77-10.79 m (35.3-35.4 ft) |
| Max reach along ground | Approx. 19.4-19.75 m (63.6-64.8 ft) |
| Max cutting height | Approx. 16.64 m (54.6 ft) |
| Max dump height | Approx. 11.49 m (37.7 ft) |
| Drawbar pull | Approx. 1,030 kN (105,000 kgf / 231,480 lbf) |
| Gradeability | Not published for this model in the sources reviewed |
Service capacities (summary)
| Fuel tank (machine total) | Approx. 2,750 L (726 gal); single fuel system serving the machine, not broken out per engine in sources reviewed |
| Hydraulic system (machine total) | Approx. 1,500 L (396 gal) |
| Engine oil (per engine, estimated) | Approx. 55 L (14.5 gal) per engine; factory-derived literature publishes a combined total of about 110 L (29 gal) for both engines together, split evenly here since the two engines are identical |
| Cooling system (per engine, estimated) | Approx. 85 L (22.5 gal) per engine; factory-derived literature publishes a combined total of about 170 L (45 gal) for both engines together, split evenly here since the two engines are identical |
Values vary by configuration, region, and serial range — confirm against your machine before planning transport or lifts.
SAA6D140E-3D-8(S/N 110001-UP (REAR ENGINE)) fluids & capacities
| System | Capacity | Recommended fluid |
|---|---|---|
| Engine crankcase (with filter) - this rear-engine unit | About 55 L (14.5 US gal) full/dry fill; roughly 50.8 L (13.4 US gal) on a routine filter-change refill. | Komatsu Genuine diesel engine oil (EO series). Use SAE 10W-30 in cooler climates and SAE 15W-40 in warmer climates; oil meets Komatsu's own engineering standard alongside API CI-4/JASO DH-1 class performance (or the later low-ash CK-4 grade on updated formulations). |
| Cooling system - this engine's radiator circuit | 85 L (22.5 US gal) for this engine's own radiator loop. The host machine carries two separate radiators, one per engine, roughly 170 L (45 US gal) combined. | Komatsu Genuine Super Coolant AF-NAC, an ethylene-glycol premix with corrosion, cavitation, and scale-forming inhibitors. Supplied ready-mixed for year-round use; no separate summer/winter blend needed. |
| Fuel tank (shared by both engines) | 2,750 L (726.6 US gal), a single tank feeding both the front and rear engines. | Ultra-low-sulfur diesel fuel meeting the engine's cetane and sulfur limits. No Komatsu-branded fuel; select a winter-grade or treated blend in cold climates to avoid gelling. |
| Hydraulic tank/system (machine-level) | 1,500 L (396.3 US gal) tank capacity; oil change interval is extended to about 5,000 hours. | Komatsu Genuine Super Hydraulic Oil (HO series), roughly an ISO VG46-equivalent grade for general climates, with a lighter cold-weather grade available for low ambient temperatures. A Komatsu Genuine BIO hydraulic oil is also offered where a biodegradable fluid is required. |
| Swing drive (2 swing motor/gearbox units, machine-level) | 2 x 30 L (2 x 7.9 US gal), about 60 L (15.9 US gal) combined for both swing drive units. The swing circle bearing itself runs grease-bathed, separate from this oil. | Komatsu Genuine Powertrain Oil (TO series). Heavier SAE 30 grade for warm climates, lighter SAE 10W grade for cold-weather startup. |
| Final drive / travel device, each side (machine-level) | 85 L (22.5 US gal) per side; about 170 L (45 US gal) combined for the left and right travel final drives. | Komatsu Genuine Powertrain Oil (TO series), same climate-based grade selection as the swing drives. |
| P.T.O. (power take-off units, machine-level) | 2 x 20 L (2 x 5.3 US gal). | Komatsu Genuine Powertrain Oil (TO series). |
| Grease (swing circle and central lubrication points) | Semi-automatic lubrication system reservoir holds about 18 L (4.8 US gal); the swing circle bearing is grease-bathed and lubricated separately. | Komatsu Genuine lithium EP multipurpose grease (G2-LI, NLGI grade 2), used across swing circle, pins, bushings, and bucket linkage as Komatsu's one-grease-for-most-points recommendation. |
Capacities are refill values from factory literature — always fill to the dipstick/sight gauge, not the number.
Komatsu SAA6D140E-3D-8(S/N 110001-UP (REAR ENGINE)) maintenance schedule
| Service interval | Tasks |
|---|---|
| Every 10 h |
|
| Every 250 h |
|
| Every 500 h |
|
| Every 1,000 h |
|
| Every 2,000 h |
|
| Every 4,000 h |
|
Servicing the SAA6D140E-3D-8(S/N 110001-UP (REAR ENGINE)) beyond the schedule
Predictive Maintenance & Fluid Analysis
Run parallel oil-sample programs for the front (3C-8) and rear (3D-8) engines - load and duty cycle differ slightly between them on the PC1800-6, so trending wear metals separately catches a failing engine before the other one masks it in a combined average. Pull engine oil, coolant, and hydraulic oil samples on the same schedule as the factory condition-monitoring readouts, and watch hydraulic oil condition closely given the large shared tank feeding both engines' pump sets.
Corrective & Common Repairs
Turbocharger and charge-air faults often show up first as mismatched power between the twin engines - a lagging rear engine under load points to boost or charge-air leakage on this SAA6D140E-3D-8 before you suspect the front unit. Verify high-pressure fuel injection and governor fault codes against the correct engine position, since front and rear control harnesses are not interchangeable. Track pin, bushing, and undercarriage wear are common given the machine's mining duty cycle.
Overhaul & Rebuild Points
Plan mid-life top-end work - cylinder head, injectors, turbocharger - around hours actually logged by this rear engine, not just the machine's combined meter, since front and rear rarely wear evenly. Swing drive, travel final drive, and main hydraulic pump rebuilds fall on a separate schedule driven by the shared hydraulic and swing systems both engines feed. Re-torque upperstructure-to-swing-circle and counterweight mounting bolts at major rebuild intervals on a machine this size.
Seasonal & Environment Servicing
Cold-start aids need checking on both engines independently before winter, since a weak start circuit on just the rear engine still strands the machine. Verify coolant concentration in both cooling systems ahead of temperature swings. In dusty mine or quarry settings, service air cleaner elements more often on whichever engine draws more airborne debris - mounting position and prevailing wind matter - and keep undercarriage components clear of packed material that loads up the final drives.
SAA6D140E-3D-8(S/N 110001-UP (REAR ENGINE)) common service parts
| Part number | Part | Notes | |
|---|---|---|---|
| 6217-71-6200 | Fuel Filter Ass'Y | Fuel system service | Check fitment → |
| 6217-71-6210 | Head,Fuel Filter | Fuel system service | Check fitment → |
| 6217-71-6211 | Head, Fuel Filter | Fuel system service | Check fitment → |
| ND092220-0040 | Filter,Fuel | Fuel system service | Check fitment → |
| 07281-00197 | Clamp,(With Pre-Fuel Filter) | Fuel system service | Check fitment → |
Always confirm against your machine's serial number — cross-check any part in Heavy Parts AI before ordering.
SAA6D140E-3D-8(S/N 110001-UP (REAR ENGINE)) fault codes & troubleshooting
| Code | Meaning | Likely cause | What to do |
|---|---|---|---|
| CA689 | Engine speed (crankshaft/Ne) sensor signal fault. | Broken or misaligned crank speed sensor, damaged tone-wheel teeth, open or shorted sensor wiring, or a corroded connector. | Check sensor air gap and mounting, inspect wiring and connector for damage or corrosion, test sensor resistance against spec, then clear and recheck the code. |
| CA731 | Backup (redundant) engine speed sensor signal is out of phase with the primary speed sensor. | Backup sensor misalignment, damaged tone-wheel teeth, or a wiring fault causing a timing mismatch between the primary and backup signals. | Verify both speed sensor air gaps and mounting, inspect harness routing and connectors, and replace the sensor if the signal stays out of phase. |
| CA144 | Coolant temperature sensor feedback reads abnormally high (out of range high). | Open circuit in the sensor wiring, a failed sensor element, or a damaged connector pin. | Inspect sensor wiring and connector, check sensor resistance against spec at a known coolant temperature, and replace the sensor if out of range. |
| CA145 | Coolant temperature sensor feedback reads abnormally low (out of range low, short circuit). | Shorted sensor circuit, damaged sensor element, or chafed/pinched wiring to ground. | Inspect wiring for shorts to ground, test the sensor, and repair or replace as needed. |
| CA451 | Common rail fuel pressure sensor feedback reads abnormally high. | Faulty rail pressure sensor, a wiring fault, or a genuine over-pressure condition in the rail. | Check sensor wiring and connector, compare sensor feedback against actual rail pressure with a diagnostic tool, and replace the sensor if feedback disagrees with measured pressure. |
| CA452 | Common rail fuel pressure sensor feedback reads abnormally low. | Faulty rail pressure sensor, open or shorted wiring, or a genuine low-rail-pressure condition from the fuel supply or pump. | Check the low-pressure fuel supply system first, then sensor wiring and the sensor itself; replace the sensor only if feedback stays out of range with confirmed rail pressure present. |
| CA122 | Charge air (boost/intake manifold) pressure sensor feedback reads abnormally high. | Faulty boost pressure sensor, wiring fault, or a blocked or kinked sensor sense line. | Inspect the sensor, sense line, and wiring; replace the sensor if the reading stays out of range with the engine off (should read near atmospheric). |
| CA123 | Charge air pressure sensor feedback reads abnormally low. | Shorted or open sensor wiring, a failed sensor, or a disconnected sense line. | Inspect wiring and the sense-line connection, test the sensor, and replace if faulty. |
| CA1633 | Datalink communication timeout between the engine controller and the machine's CAN network. | Loose or corroded connector on the datalink harness, damaged CAN wiring, or a controller power/ground issue disrupting network communication. | Check datalink connectors and wiring for damage or corrosion, verify controller power and ground, then clear and recheck; on this twin-engine machine confirm which engine's controller dropped off the network before condemning parts. |
Codes and remedies are general guidance for this model family — always confirm with diagnostic tooling and your dealer before major repairs.
SAA6D140E-3D-8(S/N 110001-UP (REAR ENGINE)) attachments & work tools
Backhoe digging buckets
Standard backhoe arrangement runs bucket capacities from roughly 5.9 to 12.0 m3 (7.7-15.7 yd3), depending on boom/stick reach and material density. General-purpose and hard-rock (heavy-duty) bucket profiles are offered for this excavator class, sized for dig/rehandle duty in quarry and mining faces.
Front shovel (loading shovel) configuration
A dedicated shovel arrangement is offered alongside the backhoe front, using a shorter boom and arm set for face-loading and mass-excavation work. Shovel bucket capacity runs up to around 12 m3, matched to the shovel geometry rather than the backhoe boom/stick.
Boom and stick (arm) options
Two factory boom/stick combinations are offered for the backhoe front: a shorter reach set and a longer reach set, giving a choice between maximum dig depth/reach and cycle-time efficiency depending on bench height and face conditions.
Bucket mounting
Buckets on this excavator class mount pin-on, matched to boom/stick pin bore and bucket linkage. Hydraulic quick-coupler systems common on smaller excavators are not standard practice at this size class; bucket changes are a scheduled pin-and-link service task.
Ground engaging tools (GET) and wear packages
Buckets for this class are fitted with bolt-on or weld-on tooth/adapter systems and heel and lip shrouds sized for abrasive, high-impact digging. Wear-package selection (standard vs. heavy-duty GET) is matched to ground conditions rather than a single fixed spec.
Hydraulic breaker (hammer) compatibility
A heavy-duty class hydraulic breaker can be fitted to this excavator class for secondary breaking, sized to the machine's hydraulic flow and carrier weight class. Breaker fitment requires a dedicated hydraulic breaker circuit and is a factory or dealer-installed option, not a standard base-machine feature.
All SAA6D140E-3D-8(S/N 110001-UP (REAR ENGINE)) assemblies by section
Every catalogued assembly group for the Komatsu SAA6D140E-3D-8(S/N 110001-UP (REAR ENGINE)). Open an assembly to preview the parts inside — full OEM part numbers are available in Heavy Parts AI.
Engine
Komatsu : Saa6d140e-3d-8(S/N 110001-Up (Rear Engine)) : Engine : After Cooler (Chassis Mount)(#110003-)
| 62***00 | After Cooler Ass'Y | 1 |
Komatsu : Saa6d140e-3d-8(S/N 110001-Up (Rear Engine)) : Engine : After Cooler Related Parts (Chassis Mount)(#110134-)
| 07***05 | Clamp | 8 |
| 62***40 | Clamp | 12 |
| 62***20 | Tube | 1 |
Komatsu : Saa6d140e-3d-8(S/N 110001-Up (Rear Engine)) : Engine : Air Cleaner (For Pc1800-6)(#110134-)
| 07***70 | Clamp,Hose | 2 |
| 08***00 | Indicator, Dust | 1 |
| 60***70 | Hose, Air | 1 |
Komatsu : Saa6d140e-3d-8(S/N 110001-Up (Rear Engine)) : Engine : Air Connection And Sensor(#110134-)
| 01***16 | Bolt - Starting Motor Ground Cable | 2 |
| 01***25 | Bolt, Mount Engine Oil Drain To Fuel Tank | 5 |
| 01***30 | Bolt - Lower Oil Cooler Outlet Tubemounting | 2 |
Komatsu : Saa6d140e-3d-8(S/N 110001-Up (Rear Engine)) : Engine : Air Intake Manifold (Rear Engine)(#110135-)
| 01***12 | Bolt,(See Fig. K0210-16a0) | 2 |
| 01***20 | Bolt, Hose Clamps (Inlet And Return Line Hoses) | 6 |
| 01***25 | Bolt, Mount Engine Oil Drain To Fuel Tank | 12 |
Komatsu : Saa6d140e-3d-8(S/N 110001-Up (Rear Engine)) : Engine : Air Vent And Water Temperature Sensor (Cold Terrain Spec.)(#110947-)
| 01***16 | Bolt - Starting Motor Ground Cable | 1 |
| 01***20 | Bolt, Hose Clamps (Inlet And Return Line Hoses) | 2 |
| 01***40 | Bolt,(Shim 3-Piece) | 1 |
Komatsu : Saa6d140e-3d-8(S/N 110001-Up (Rear Engine)) : Engine : Air Vent And Water Temperature Sensor(#110134-)
| 01***16 | Bolt - Starting Motor Ground Cable | 1 |
| 01***65 | Screw | 5 |
| 01***10 | Bolt | 1 |
Komatsu : Saa6d140e-3d-8(S/N 110001-Up (Rear Engine)) : Engine : Alternator (90a) (With Hardening Pulley) (Inner Parts)(#110134-)
| 60***10 | Alternator A. (90a),100a | 1 |
| KD***02 | Bolt | 4 |
| KD***02 | Washer,Spring | 5 |
Komatsu : Saa6d140e-3d-8(S/N 110001-Up (Rear Engine)) : Engine : Alternator (90a) (With Non Hardening Pulley) (Inner Parts)(#110948-)
| 60***10 | Alternator A. (90a) | 1 |
| KD***02 | Bolt | 4 |
| KD***02 | Washer,Spring | 5 |
Komatsu : Saa6d140e-3d-8(S/N 110001-Up (Rear Engine)) : Engine : Alternator Mounting (90a) (With Hardening Pulley)(#110134-)
| 01***20 | Bolt, Wiring Harness Mounting Bracket | 3 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 2 |
| 01***60 | Bolt,For Weight Adjusting Bolt | 1 |
Komatsu : Saa6d140e-3d-8(S/N 110001-Up (Rear Engine)) : Engine : Alternator Mounting (90a) (With Non Hardening Pulley)(#110948-)
| 01***20 | Bolt, Wiring Harness Mounting Bracket | 3 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 2 |
| 01***60 | Bolt,For Weight Adjusting Bolt | 1 |
Komatsu : Saa6d140e-3d-8(S/N 110001-Up (Rear Engine)) : Engine : Amplifier (Tropical Spec.)(#110134-)
| 62***20 | Amplifier | 1 |
Komatsu : Saa6d140e-3d-8(S/N 110001-Up (Rear Engine)) : Engine : Camfollower
| 04***12 | Ring, Retaining | 4 |
| 61***30 | Pin,Dowel | 12 |
| 61***20 | Ball | 1 |
Komatsu : Saa6d140e-3d-8(S/N 110001-Up (Rear Engine)) : Engine : Camfollower Cover
| 61***91 | Packing,(See Fig.A2060) | 9 |
| 62***10 | Cover, Camfollower | 3 |
| 62***71 | Screw | 9 |
Komatsu : Saa6d140e-3d-8(S/N 110001-Up (Rear Engine)) : Engine : Camshaft
| 01***20 | Bolt (M12-1.75x20) | 2 |
| 04***25 | Key, Plain Woodruff | 1 |
| 62***12 | Camshaft Assembly | 1 |
Komatsu : Saa6d140e-3d-8(S/N 110001-Up (Rear Engine)) : Engine : Common Rail (Inner Parts)(#110134-110811)
| 62***10 | Rail Assembly, Common | 1 |
| ND***20 | Picco Ring | 7 |
| ND***40 | Limiter Assembly, Fuel Pressure | 1 |
Komatsu : Saa6d140e-3d-8(S/N 110001-Up (Rear Engine)) : Engine : Common Rail (Inner Parts)(#110812-)
| 62***11 | Rail Ass'Y,(See Fig.A4010-E3u9) | 1 |
| ND***20 | Picco Ring | 7 |
| ND***40 | Limiter Assembly, Fuel Pressure | 1 |
Komatsu : Saa6d140e-3d-8(S/N 110001-Up (Rear Engine)) : Engine : Common Rail (Low-Viscosity Fuel Spec.) (Regulation Of Epa And Eu 2nd) (Inner Parts)(#111630-)
| 62***11 | Rail Ass'Y,(See Fig.A4010-E3u9) | 1 |
| ND***20 | Picco Ring | 7 |
| ND***40 | Limiter Assembly, Fuel Pressure | 1 |
Komatsu : Saa6d140e-3d-8(S/N 110001-Up (Rear Engine)) : Engine : Cooling Fan (Suction)(#110134-)
| 60***80 | Fan,Cooling | 1 |
Komatsu : Saa6d140e-3d-8(S/N 110001-Up (Rear Engine)) : Engine : Corrosion Resistor(#110134-)
| 01***25 | Bolt, Mount Engine Oil Drain To Fuel Tank | 1 |
| 01***35 | Bolt, Mount Bracket To Floor | 4 |
| 01***60 | Bolt - Upper Cooler Inlet Tubemounting | 2 |
Komatsu : Saa6d140e-3d-8(S/N 110001-Up (Rear Engine)) : Engine : Crank Pulley (Sandy And Dusty Spec.)(#110948-)
| 04***24 | Pin,Dowel (For No.3 Housing) | 1 |
| 62***20 | Bolt | 6 |
| 62***21 | Pulley? Hardening | 1 |
Komatsu : Saa6d140e-3d-8(S/N 110001-Up (Rear Engine)) : Engine : Crank Pulley(#110134-110947)
| 04***24 | Pin,Dowel (For No.3 Housing) | 1 |
| 62***20 | Bolt | 6 |
| 62***20 | Pulley? Hardening | 1 |
Komatsu : Saa6d140e-3d-8(S/N 110001-Up (Rear Engine)) : Engine : Crank Pulley(#110948-)
| 04***24 | Pin,Dowel (For No.3 Housing) | 1 |
| 62***20 | Bolt | 6 |
| 62***40 | Pulley?Non Hardening | 1 |
Komatsu : Saa6d140e-3d-8(S/N 110001-Up (Rear Engine)) : Engine : Crankshaft
| 04***28 | Pin, Dowel - Transmission Case, Pin-Dowel | 1 |
| 61***30 | Key Parallel | 1 |
| 62***00 | Bearing Assembly | 1 |
Komatsu : Saa6d140e-3d-8(S/N 110001-Up (Rear Engine)) : Engine : Cylinder Block
| 01***25 | Screw | 12 |
| 01***45 | Washer,(Without R.O.P.S.) | 14 |
| 01***32 | Washer, (Without Emergency Steering) | 12 |
Komatsu : Saa6d140e-3d-8(S/N 110001-Up (Rear Engine)) : Engine : Cylinder Block Cover And Oil Filler (1/2)(#110134-)
| 01***14 | Bolt - Fuel Sensor Mounting | 1 |
| 01***20 | Bolt, Hose Clamps (Inlet And Return Line Hoses) | 6 |
| 01***25 | Bolt, Mount Engine Oil Drain To Fuel Tank | 6 |
Komatsu : Saa6d140e-3d-8(S/N 110001-Up (Rear Engine)) : Engine : Cylinder Block Cover And Oil Filler (2/2)(#110134-)
| 01***50 | Bolt,(Spark Arrester Spec.) | 12 |
| 01***16 | Bolt - Starting Motor Ground Cable | 1 |
| 01***20 | Bolt, Hose Clamps (Inlet And Return Line Hoses) | 7 |
Komatsu : Saa6d140e-3d-8(S/N 110001-Up (Rear Engine)) : Engine : Cylinder Block Cover And Oil Filler (Cold Terrain Spec.)(#110947-)
| 01***50 | Bolt,(Spark Arrester Spec.) | 12 |
| 01***20 | Bolt, Hose Clamps (Inlet And Return Line Hoses) | 7 |
| 01***25 | Bolt, Mount Engine Oil Drain To Fuel Tank | 2 |
Komatsu : Saa6d140e-3d-8(S/N 110001-Up (Rear Engine)) : Engine : Cylinder Block Gasket Kit(#110003-)
| 07***60 | O-Ring,(For Pc750?800?1800) (A2610) | 1 |
| 07***50 | O-Ring,Front Cover Plate | 1 |
| 07***42 | O-Ring,(See Fig.A3310) | 1 |
Komatsu : Saa6d140e-3d-8(S/N 110001-Up (Rear Engine)) : Engine : Cylinder Head Gasket Kit(#110003-)
| 02***75 | O-Ring,(See Fig.A1310) | 2 |
| 07***25 | O-Ring,(For Pc1800e-6)(See Fig.A3110) | 6 |
| 07***11 | O-Ring,(See Fig.A4210) | 6 |
Komatsu : Saa6d140e-3d-8(S/N 110001-Up (Rear Engine)) : Engine : Cylinder Head(#110150-)
| 01***20 | Bolt (M10-1.75x120) | 6 |
| 01***45 | Washer, Spring | 36 |
| 07***25 | O-Ring,(For Pc1800e-6)(See Fig.A3110) | 1 |
Komatsu : Saa6d140e-3d-8(S/N 110001-Up (Rear Engine)) : Engine : Engine Support(#110003-)
| 01***40 | Bolt,For Weight Adjusting Bolt | 9 |
| 01***32 | Washer,(Not Used With Emergency Str.) | 9 |
| 04***34 | Pin-Dowel, Pin,Dowel (For Shipping) | 2 |
Komatsu : Saa6d140e-3d-8(S/N 110001-Up (Rear Engine)) : Engine : Exhaust Manifold(#110134-)
| 01***55 | Screw | 2 |
| 01***00 | Screw | 22 |
| 01***70 | Screw | 1 |
Komatsu : Saa6d140e-3d-8(S/N 110001-Up (Rear Engine)) : Engine : Exhaust Nonnection(#110134-)
| 01***45 | Capscrew | 4 |
| 01***35 | Bolt, Mount Bracket To Floor | 4 |
| 62***71 | Elbow,Exhaust | 1 |
Komatsu : Saa6d140e-3d-8(S/N 110001-Up (Rear Engine)) : Engine : Fan Belt (For Pc1800-6)(#110134-)
| 60***20 | V-Belt | 1 |
Komatsu : Saa6d140e-3d-8(S/N 110001-Up (Rear Engine)) : Engine : Flywheel
| 61***51 | Gear, Ring | 1 |
| 62***50 | Bolt | 6 |
| 62***00 | Flywheel Assembly | 1 |
Komatsu : Saa6d140e-3d-8(S/N 110001-Up (Rear Engine)) : Engine : Flywheel Housing(#110134-)
| 01***50 | Capscrew | 8 |
| 01***65 | Capscrew | 2 |
| 01***12 | Bolt,(See Fig. K0210-16a0) | 1 |
Komatsu : Saa6d140e-3d-8(S/N 110001-Up (Rear Engine)) : Engine : Front Cover (Front Power Take Off Spec.)
| 07***16 | Plug, Expansion | 6 |
| 62***31 | Cover,Front | 1 |
| 62***32 | Cover,Front | 1 |
Komatsu : Saa6d140e-3d-8(S/N 110001-Up (Rear Engine)) : Engine : Front Cover Mounting And Breather (For Pc1800-6 Rear Engine)(#110135-110812)
| 01***75 | Bolt - Tube Mounting | 1 |
| 01***90 | Bolt,For Weight Adjusting Bolt | 4 |
| 01***16 | Bolt, Mounting Transmission Control Switch | 2 |
Komatsu : Saa6d140e-3d-8(S/N 110001-Up (Rear Engine)) : Engine : Front Cover Mounting And Breather (For Pc1800-6 Rear Engine)(#110813-)
| 01***75 | Bolt - Tube Mounting | 1 |
| 01***90 | Bolt,For Weight Adjusting Bolt | 4 |
| 01***25 | Screw | 2 |
Komatsu : Saa6d140e-3d-8(S/N 110001-Up (Rear Engine)) : Engine : Front Power Take Off (Rear Engine) (Sandy And Dusty Spec.)(#110948-)
| 01***30 | Bolt - Lower Oil Cooler Outlet Tubemounting | 3 |
| 04***18 | Ring, Snap | 1 |
| 06***04 | Bearing,Ball | 2 |
Komatsu : Saa6d140e-3d-8(S/N 110001-Up (Rear Engine)) : Engine : Front Power Take Off (Rear Engine)(#110135-110947)
| 01***30 | Bolt - Lower Oil Cooler Outlet Tubemounting | 3 |
| 04***18 | Ring, Snap | 1 |
| 06***04 | Bearing,Ball | 2 |
Komatsu : Saa6d140e-3d-8(S/N 110001-Up (Rear Engine)) : Engine : Front Power Take Off (Rear Engine)(#110948-)
| 01***30 | Bolt - Lower Oil Cooler Outlet Tubemounting | 3 |
| 04***18 | Ring, Snap | 1 |
| 06***04 | Bearing,Ball | 2 |
Komatsu : Saa6d140e-3d-8(S/N 110001-Up (Rear Engine)) : Engine : Fuel Control (Chassis Mount) (Tropical And Sandy Spec.)(#110947-)
| 78***00 | Controller | 1 |
Komatsu : Saa6d140e-3d-8(S/N 110001-Up (Rear Engine)) : Engine : Fuel Control (Chassis Mount)(#110134-110812)
| 78***0B | Controller | 1 |
| 78***02 | Controller | 1 |
Komatsu : Saa6d140e-3d-8(S/N 110001-Up (Rear Engine)) : Engine : Fuel Control (Chassis Mount)(#110813-)
| 78***02 | Controller | 1 |
Komatsu : Saa6d140e-3d-8(S/N 110001-Up (Rear Engine)) : Engine : Fuel Filter(#110134-)
| 01***20 | Bolt,(Forwarded Individually Parts) | 2 |
| 01***35 | Bolt, Cover | 1 |
| 01***25 | Bolt, Mount Engine Oil Drain To Fuel Tank | 2 |
Komatsu : Saa6d140e-3d-8(S/N 110001-Up (Rear Engine)) : Engine : Fuel Injector
Komatsu : Saa6d140e-3d-8(S/N 110001-Up (Rear Engine)) : Engine : Fuel Piping(#110003-)
| 01***25 | Screw | 3 |
| 01***30 | Bolt,See Fig. K4010-17a0 | 15 |
| 01***16 | Bolt, Mount Solenoid Valve | 2 |
Komatsu : Saa6d140e-3d-8(S/N 110001-Up (Rear Engine)) : Engine : Fuel Pump Supply And Return Piping (Low-Viscosity Fuel Spec.) (Regulation Of Epa And Eu 2nd)(#111630-)
| 01***30 | Bolt,See Fig. K4010-17a0 | 4 |
| 01***35 | Bolt | 2 |
| 01***20 | Bolt, Hose Clamps (Inlet And Return Line Hoses) | 1 |
Komatsu : Saa6d140e-3d-8(S/N 110001-Up (Rear Engine)) : Engine : Fuel Pump Supply And Return Piping(#110134-110811)
| 01***30 | Bolt,See Fig. K4010-17a0 | 4 |
| 01***35 | Bolt | 2 |
| 01***20 | Bolt, Hose Clamps (Inlet And Return Line Hoses) | 1 |
Komatsu : Saa6d140e-3d-8(S/N 110001-Up (Rear Engine)) : Engine : Fuel Pump Supply And Return Piping(#110812-)
| 01***30 | Bolt,See Fig. K4010-17a0 | 4 |
| 01***35 | Bolt | 2 |
| 01***20 | Bolt, Hose Clamps (Inlet And Return Line Hoses) | 1 |
Komatsu : Saa6d140e-3d-8(S/N 110001-Up (Rear Engine)) : Engine : Fuel Return(#110134-)
| 01***20 | Bolt, Hose Clamps (Inlet And Return Line Hoses) | 1 |
| 01***25 | Bolt, Mount Engine Oil Drain To Fuel Tank | 2 |
| 01***30 | Bolt - Lower Oil Cooler Outlet Tubemounting | 2 |
Komatsu : Saa6d140e-3d-8(S/N 110001-Up (Rear Engine)) : Engine : Fuel Supply Pump (Feed Pump) (Inner Parts)(#110134-110811)
| ND***70 | Washer,Union | 6 |
| ND***10 | Spring, Check Valve | 2 |
| ND***42 | Screw | 1 |
Komatsu : Saa6d140e-3d-8(S/N 110001-Up (Rear Engine)) : Engine : Fuel Supply Pump (Feed Pump) (Inner Parts)(#110812-)
| ND***70 | Washer,Union | 6 |
| ND***10 | Spring, Check Valve | 2 |
| ND***42 | Screw | 1 |
Komatsu : Saa6d140e-3d-8(S/N 110001-Up (Rear Engine)) : Engine : Fuel Supply Pump (Feed Pump) (Low-Viscosity Fuel Spec.) (Regulation Of Epa And Eu 2nd) (Inner Parts)(#111630-)
| ND***70 | Washer,Union | 6 |
| ND***10 | Spring, Check Valve | 2 |
| ND***42 | Screw | 1 |
Komatsu : Saa6d140e-3d-8(S/N 110001-Up (Rear Engine)) : Engine : Fuel Supply Pump (Pump) (Inner Parts)(#110134-110811)
| 62***10 | Fuel Pump Ass'Y | 1 |
| ND***70 | Washer,Union | 5 |
| ND***60 | Screw | 1 |
Komatsu : Saa6d140e-3d-8(S/N 110001-Up (Rear Engine)) : Engine : Fuel Supply Pump (Pump) (Inner Parts)(#110812-)
| 62***10 | Fuel Pump Ass'Y | 1 |
| ND***70 | Washer,Union | 5 |
| ND***60 | Screw | 1 |
Komatsu : Saa6d140e-3d-8(S/N 110001-Up (Rear Engine)) : Engine : Fuel Supply Pump (Pump) (Low-Viscosity Fuel Spec.) (Regulation Of Epa And Eu 2nd) (Inner Parts)(#111630-)
| 62***30 | Fuel Pump Ass'Y | 1 |
| ND***70 | Washer,Union | 5 |
| ND***60 | Screw | 1 |
Komatsu : Saa6d140e-3d-8(S/N 110001-Up (Rear Engine)) : Engine : Fuel Supply Pump And Common Rail Mounting (Low-Viscosity Fuel Spec.) (Regulation Of Epa And Eu 2nd)(#111630-)
| 01***35 | Bolt,(F4320-52a0 -5 ) | 4 |
| 01***12 | Nut | 1 |
| 01***32 | Washer,(With Auto Emergency Steering) | 4 |
Komatsu : Saa6d140e-3d-8(S/N 110001-Up (Rear Engine)) : Engine : Fuel Supply Pump And Common Rail Mounting(#110134-110811)
| 01***35 | Bolt,(F4320-52a0 -5 ) | 4 |
| 01***12 | Nut | 1 |
| 01***32 | Washer,(With Auto Emergency Steering) | 4 |
Komatsu : Saa6d140e-3d-8(S/N 110001-Up (Rear Engine)) : Engine : Fuel Supply Pump And Common Rail Mounting(#110812-)
| 01***35 | Bolt,(F4320-52a0 -5 ) | 4 |
| 01***12 | Nut | 1 |
| 01***32 | Washer,(With Auto Emergency Steering) | 4 |
Komatsu : Saa6d140e-3d-8(S/N 110001-Up (Rear Engine)) : Engine : Fuel Supply Pump Bracket And Connection Cover(#110003-)
| 01***12 | Bolt,(See Fig. K0210-16a0) | 4 |
| 01***20 | Bolt, Hose Clamps (Inlet And Return Line Hoses) | 4 |
| 01***20 | Bolt - Mount Risers To Cab Floor | 2 |
Komatsu : Saa6d140e-3d-8(S/N 110001-Up (Rear Engine)) : Engine : Fuel Supply Pump Lubricator(#110003-)
| 07***12 | Gasket,(Without Air Compressor Type) (K2) | 2 |
| 07***10 | Screw, Banjo Connector (M10-1.25x20) | 1 |
| 62***10 | Tube, Supply | 1 |
Komatsu : Saa6d140e-3d-8(S/N 110001-Up (Rear Engine)) : Engine : Head Cover
| 62***10 | Cover, Cylinder Head | 6 |
| 62***20 | Gasket,(See Fig.A1110) | 6 |
| 62***30 | Gasket (K1) | 6 |
Komatsu : Saa6d140e-3d-8(S/N 110001-Up (Rear Engine)) : Engine : Head Cover Bolt
| 01***55 | Screw | 18 |
Komatsu : Saa6d140e-3d-8(S/N 110001-Up (Rear Engine)) : Engine : Heat Shield (1/2) Exhaust Line(#110134-)
| 01***35 | Bolt | 1 |
| 01***20 | Bolt, Hose Clamps (Inlet And Return Line Hoses) | 10 |
| 01***25 | Bolt, Mount Engine Oil Drain To Fuel Tank | 9 |
Komatsu : Saa6d140e-3d-8(S/N 110001-Up (Rear Engine)) : Engine : Heat Shield (2/2) Fuel Line(#110812-)
| 01***25 | Bolt, Mount Engine Oil Drain To Fuel Tank | 2 |
| 01***15 | Bolt | 3 |
| 01***50 | Bolt (M10-1.50x150) | 1 |
Komatsu : Saa6d140e-3d-8(S/N 110001-Up (Rear Engine)) : Engine : Idler Gear
| 01***30 | Bolt - M8 X 30lg | 6 |
| 61***60 | Pin, Dowel | 1 |
| 61***22 | Bolt | 1 |
Komatsu : Saa6d140e-3d-8(S/N 110001-Up (Rear Engine)) : Engine : Muffler (For Pc1800-6)(#110134-)
Komatsu : Saa6d140e-3d-8(S/N 110001-Up (Rear Engine)) : Engine : Name Plate And Caution Plate (English)
| 04***50 | Screw | 4 |
| 09***45 | Plate? Name,(Limited Supply) | 1 |
| 60***40 | Plate? Name,(Limited Supply) | 1 |
Komatsu : Saa6d140e-3d-8(S/N 110001-Up (Rear Engine)) : Engine : Name Plate And Caution Plate (Japanese-English) (Regulation Of Epa And Eu)
| 04***50 | Screw | 4 |
| 61***10 | Plate? License,(Limited Supply) | 1 |
| 61***11 | Plate? License,(Limited Supply) | 1 |
Komatsu : Saa6d140e-3d-8(S/N 110001-Up (Rear Engine)) : Engine : Oil Cooler(#110134-)
| 01***20 | Bolt, Wiring Harness Mounting Bracket | 2 |
| 01***30 | Bolt - Lower Oil Cooler Outlet Tubemounting | 13 |
| 01***50 | Bolt,(See Fig.A4010-C3w6) | 1 |
Komatsu : Saa6d140e-3d-8(S/N 110001-Up (Rear Engine)) : Engine : Oil Filter And Piping(#110134-)
| 01***20 | Bolt, Hose Clamps (Inlet And Return Line Hoses) | 2 |
| 01***25 | Bolt, Mount Engine Oil Drain To Fuel Tank | 6 |
| 01***35 | Bolt, Mount Bracket To Floor | 12 |
Komatsu : Saa6d140e-3d-8(S/N 110001-Up (Rear Engine)) : Engine : Oil Level Gauge (Cold Terran Spec.)(#110947-)
| 01***25 | Bolt, Mount Engine Oil Drain To Fuel Tank | 1 |
| 01***70 | Screw | 1 |
| 01***08 | Nut,See Fig. K4010-04a0 | 1 |
Komatsu : Saa6d140e-3d-8(S/N 110001-Up (Rear Engine)) : Engine : Oil Level Gauge(#110134-)
| 01***25 | Bolt, Mount Engine Oil Drain To Fuel Tank | 1 |
| 01***70 | Screw | 1 |
| 01***08 | Nut,See Fig. K4010-04a0 | 1 |
Komatsu : Saa6d140e-3d-8(S/N 110001-Up (Rear Engine)) : Engine : Oil Pan And Suction Tube (Cold Terran Spec.)(#110947-)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 1 |
| 01***30 | Bolt,(With Body Positioner) | 1 |
| 01***12 | Bolt,(See Fig. K0210-16a0) | 3 |
Komatsu : Saa6d140e-3d-8(S/N 110001-Up (Rear Engine)) : Engine : Oil Pan And Suction Tube(#110134-)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 1 |
| 01***30 | Bolt,(With Body Positioner) | 1 |
| 01***12 | Bolt,(See Fig. K0210-16a0) | 3 |
Komatsu : Saa6d140e-3d-8(S/N 110001-Up (Rear Engine)) : Engine : Oil Pump
| 01***25 | Bolt,(Rear Attachment Less) | 4 |
| 01***30 | Bolt,(Not Used When Towing Winch) | 1 |
| 01***40 | Bolt,For Weight Adjusting Bolt | 2 |
Komatsu : Saa6d140e-3d-8(S/N 110001-Up (Rear Engine)) : Engine : Piston
| 02***13 | Pin, Dowel | 2 |
| 04***20 | Ring, Retaining | 12 |
| 62***10 | Bolt | 2 |
Komatsu : Saa6d140e-3d-8(S/N 110001-Up (Rear Engine)) : Engine : Rain Cap (Tropical Spec.)(#110134-)
| 60***20 | Cap,Rain | 1 |
Komatsu : Saa6d140e-3d-8(S/N 110001-Up (Rear Engine)) : Engine : Rocker Arm
| 01***08 | Nut,R.H. Thread | 2 |
| 01***32 | Washer, (Without Emergency Steering) | 6 |
| 04***14 | Pin, Dowel | 18 |
Komatsu : Saa6d140e-3d-8(S/N 110001-Up (Rear Engine)) : Engine : Spare Parts (Air Element And Cartridge)(#110134-)
| 60***71 | O-Ring | 1 |
| 60***00 | Element Assembly, Air Cleaner | 1 |
| 60***40 | Cartridge, Oil Filter | 2 |
Komatsu : Saa6d140e-3d-8(S/N 110001-Up (Rear Engine)) : Engine : Spare Parts (Tropical Spec.)(#110134-)
| 60***20 | V-Belt | 1 |
| 62***60 | V-Belt Set | 1 |
Komatsu : Saa6d140e-3d-8(S/N 110001-Up (Rear Engine)) : Engine : Starting Motor (11kw) (Inner Parts)(#110001-111449)
| 60***21 | Starting Motor Assembly (11kw) | 1 |
| KD***40 | Spring,Spring | 4 |
| KD***57 | Bearing, Ball, Front | 1 |
Komatsu : Saa6d140e-3d-8(S/N 110001-Up (Rear Engine)) : Engine : Starting Motor Mounting (11kw)
| 01***40 | Bolt (Kit) | 3 |
| 01***16 | Bolt - Starting Motor Ground Cable | 1 |
| 08***19 | Band - Tie Hose To Wire Harness | 1 |
Komatsu : Saa6d140e-3d-8(S/N 110001-Up (Rear Engine)) : Engine : Tension Pulley (Sandy And Dusty Spec.)(#110948-)
| 01***20 | Bolt, Wiring Harness Mounting Bracket | 2 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 1 |
| 01***55 | Bolt - Mount Cage To Transmission Case | 2 |
Komatsu : Saa6d140e-3d-8(S/N 110001-Up (Rear Engine)) : Engine : Tension Pulley(#110134-110947)
| 01***20 | Bolt, Wiring Harness Mounting Bracket | 2 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 1 |
| 01***55 | Bolt - Mount Cage To Transmission Case | 2 |
Komatsu : Saa6d140e-3d-8(S/N 110001-Up (Rear Engine)) : Engine : Tension Pulley(#110948-)
| 01***20 | Bolt, Wiring Harness Mounting Bracket | 2 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 1 |
| 01***55 | Bolt - Mount Cage To Transmission Case | 2 |
Komatsu : Saa6d140e-3d-8(S/N 110001-Up (Rear Engine)) : Engine : Turbocharger (Ktr110l-584e? 585e) (Inner Parts)(#110134-)
| 01***16 | Bolt | 4 |
| 01***16 | Bolt | 8 |
| 04***08 | Pin, Dowel | 1 |
Komatsu : Saa6d140e-3d-8(S/N 110001-Up (Rear Engine)) : Engine : Turbocharger And Oil Piping(#110134-)
| 01***35 | Bolt, Cover | 1 |
| 01***20 | Bolt, Hose Clamps (Inlet And Return Line Hoses) | 1 |
| 01***25 | Bolt, Mount Engine Oil Drain To Fuel Tank | 4 |
Komatsu : Saa6d140e-3d-8(S/N 110001-Up (Rear Engine)) : Engine : Vibration Damper
| 01***30 | Bolt,(Not Used When Towing Winch) | 6 |
| 01***25 | Bolt,L.H. (For Add. Air Compressor) | 6 |
| 01***32 | Washer,(Not Used With Emergency Str.) | 6 |
Komatsu : Saa6d140e-3d-8(S/N 110001-Up (Rear Engine)) : Engine : Water Connection Gasket (Tropical Spec.)(#110134-)
| 62***41 | Gasket,(For Hd325?Hm400?Wt800)(A5010) | 1 |
| 62***21 | Gasket,(For Hd325-6?Hm400-1) (A5010) | 1 |
Komatsu : Saa6d140e-3d-8(S/N 110001-Up (Rear Engine)) : Engine : Water Line Plug (Without Corro.Rstr.)(#112318-)
| 01***60 | Bolt - Upper Cooler Inlet Tubemounting | 2 |
| 07***12 | Gasket,(Without Air Compressor Type) (K1) | 4 |
| 60***20 | Plug,(For Shipping) | 4 |
Komatsu : Saa6d140e-3d-8(S/N 110001-Up (Rear Engine)) : Engine : Water Pump (Cold Terrain Spec.)(#110947-)
| 01***80 | Bolt (M10-1.50x80) | 1 |
| 01***95 | Bolt,(For Shipping) | 3 |
| 01***30 | Bolt | 3 |
Komatsu : Saa6d140e-3d-8(S/N 110001-Up (Rear Engine)) : Engine : Water Pump Gasket Kit(#110003-)
| 02***37 | O-Ring,(For Pc750?1800) (A5010) | 2 |
| 07***45 | O-Ring,(F4320-61a0 -16 ), O-Ring; Was 07000-02145 | 1 |
| 07***70 | O-Ring,(For Pc1800e-6)(See Fig.A2041) | 1 |
Komatsu : Saa6d140e-3d-8(S/N 110001-Up (Rear Engine)) : Engine : Water Pump(#110134-)
| 01***80 | Bolt (M10-1.50x80) | 1 |
| 01***95 | Bolt,(For Shipping) | 3 |
| 01***30 | Bolt | 3 |
Komatsu : Saa6d140e-3d-8(S/N 110001-Up (Rear Engine)) : Engine : Wiring (1/3) Switch And Heater(#110134-)
| 01***20 | Bolt,(Forwarded Individually Parts) | 4 |
| 01***55 | Bolt, Mount Dryer To Bracket And Frame | 2 |
| 01***75 | Bolt | 2 |
Komatsu : Saa6d140e-3d-8(S/N 110001-Up (Rear Engine)) : Engine : Wiring (2/3) Fuel Injector(#110134-)
| 01***25 | Bolt - Relay Mounting | 6 |
| 01***16 | Bolt - Starting Motor Ground Cable | 3 |
| 01***40 | Bolt,(Shim 3-Piece) | 4 |
Komatsu : Saa6d140e-3d-8(S/N 110001-Up (Rear Engine)) : Engine : Wiring (3/3) Sensor And Switch(#110134-)
| 01***16 | Bolt - Starting Motor Ground Cable | 3 |
| 01***20 | Bolt, Hose Clamps (Inlet And Return Line Hoses) | 3 |
| 01***40 | Bolt,(Shim 3-Piece) | 3 |
SAA6D140E-3D-8(S/N 110001-UP (REAR ENGINE)) serial number reference
On this twin-engine excavator each engine carries its own dataplate on the engine block, separate from the machine's own chassis PIN plate riveted in the cab/frame area. Komatsu's general convention puts the engine dataplate on the left side of the block; confirm exact placement against the machine before ordering. The plate stamps the full engine model code (SAA6D140E-3D-8) and the serial number as a plain digit string starting at 110001, with no letter prefix to decode. The trailing model letter (C vs D in this family) tells you which of the two engines it is (front vs rear), and the '-8' arrangement number marks the emissions/fuel-system revision, so always match both the full code and serial range, not just the base 6D140E number, when ordering parts.
| Prefix | Identifies | Notes |
|---|---|---|
| 110001-UP | SAA6D140E-3D-8, rear-position engine of the twin-engine set fitted to the Komatsu PC1800-6 hydraulic mining excavator (Tier 2 emissions arrangement) | Straight numeric engine serial run, no alpha PIN prefix. This is the rear engine of the PC1800-6's twin-engine pairing; the front engine of the same pair carries the companion code SAA6D140E-3C-8 on its own serial run, not part of this family. Each engine in the pair is factory-rated at 338 kW (454 hp) at 1800 rpm gross, with combined flywheel output of 676 kW (908 hp) for the machine. The '-8' arrangement adds an electronic governor and common-rail fuel system for Tier 2 emissions compliance, fitted to PC1800-6 units built roughly 2000 through 2007. Confirm with dealer: exact serial break points beyond 110001-UP, and whether any later running change exists within the 3D-8 arrangement, were not confirmed in available listings. |
Frequently asked questions
What engine powers this Komatsu PC1800-6 excavator?
It is one of two Komatsu SAA6D140E-3 diesel engines fitted to the PC1800-6. This is the SAA6D140E-3D-8, mounted at the rear, paired with a front SAA6D140E-3C-8 engine of the same series. Combined, the two engines deliver a factory flywheel rating of 676 kW (908 hp) at 1800 rpm.
What is the operating weight of the machine this engine powers?
The PC1800-6 host machine runs 180,000-184,120 kg (396,800-405,900 lb) operating weight, varying with track shoe width and front attachment fitted.
What replaced the Komatsu PC1800-6?
Komatsu replaced the twin-engine PC1800-6 with the PC2000-8, which switched to one large single engine instead of the paired front/rear layout used on this machine.
What SAA6D140E-3D-8(S/N 110001-UP (REAR ENGINE)) owners discuss
How does the front/rear twin-engine setup on this excavator actually work, and what happens if one engine has to be shut down?
This machine carries two SAA6D140E-3 engines, one mounted at the front of the engine bay and one at the rear, each with its own electronic governor and common-rail fuel system. Each engine drives a dedicated share of the machine's variable-displacement main pumps and the independent swing pump circuit, so full digging force, swing speed and travel speed all need both engines running together. Combined flywheel output on this generation is in the 670-680 kW (roughly 900 hp) class. If one engine has to be shut down for a fault, the machine can usually still creep and swing on the remaining engine, but boom force, cycle time and travel speed all drop well below rated performance. Treat that as a get-home mode, not a way to keep digging a full shift. Have your dealer verify the fault before returning the machine to full digging duty.
We're getting engine speed-sensor related fault codes on one of the two engines - is that a known issue on this engine family?
Yes. The SAA6D140E-3 family uses an ECM-controlled common-rail system that relies on the crankshaft speed sensor to time injection and manage power output, and reports of low power, hard starting or an unexplained derate on this engine block often trace back to that sensor's wiring or connector rather than the ECM itself. On a twin-engine machine, check the harness and connector at each engine separately before condemning a control module - mining-site dust, moisture and vibration corrode connector pins over time, and one engine's harness can fail while the other stays clean. Confirm sensor resistance and connector condition with a meter, and pull the exact fault code, before ordering any parts.
What generally goes wrong with the hydraulics on a big Komatsu excavator like this one - sluggish boom, swing that won't hold?
On this size of open-center, pilot-operated system the complaints that come up again and again mirror what's reported across Komatsu's large excavator line: sluggish cylinder speed, hot oil and reduced lifting force usually point to a worn pump compensator or internal leakage rather than a dead pump outright, and contaminated oil is the single biggest driver of premature pump and valve wear on a machine this size. A house that creeps or drifts when it should hold is commonly a shuttle valve or counterbalance valve problem in the swing brake circuit - the brake is spring-applied and only releases hydraulically once swing pressure builds, so a sticking shuttle ball or a weak spring lets the house drift. Because an unexpected swing release with a load up is a safety issue, have your dealer verify and pressure-test the swing brake circuit rather than chasing it by feel.
What does switching into heavy-lift or power mode actually change on this machine?
This generation offers several working modes plus a heavy-lift setting that adds roughly 7% more boom lifting force when needed, along with a two-position boom setting so the operator can pick a smooth setting for fine grading or a power setting for hard digging. Each mode changes engine speed, pump output and system pressure together rather than just opening the throttle further, so switching modes on the fly is normal and not itself a sign of trouble. If lifting force still feels low in heavy-lift mode, check pump compensator and relief valve settings before assuming the mode selector is at fault.
What kind of undercarriage wear should we expect running a machine this size on a mining site?
On a machine in this weight class, undercarriage is one of the largest line items in hourly operating cost, and wear rate tracks ground abrasiveness far more closely than it tracks hours alone. The same machine can burn through track shoes, rollers and idlers in a fraction of the time in hard, sharp rock compared with a softer dig face. Hardened, grouser-style track shoes and rock guards are standard for this kind of duty rather than an upgrade. Watch sprocket and idler wear and track sag directly rather than going by a fixed hour number, and don't assume a low-hour machine has good undercarriage - abrasive ground can chew through shoes well inside what would be a normal wear life on a general construction site.
Is there anything specific to watch for on service intervals given there are two separate engines?
This generation runs a longer engine oil and filter interval than earlier PC1800 engines, extended out to roughly 500 hours per engine as part of the update - confirm the exact figure for your engine arrangement in the maintenance schedule, since it can vary by option and duty cycle. Because there are two separate engines with two separate service histories, check that both have actually been kept on the same interval. A machine where one engine shows noticeably more hours or a different oil-sample trend than the other usually means uneven duty-cycling, with one engine doing more of the light travel or idle work, or a service record that only tracked one engine consistently.
What should we check before buying a used machine with this twin-engine setup?
Pull the telemetry and health-monitoring history for both engines separately, not just a combined machine total, and compare hours, fault-code history and any derate events between the front and rear engine, since they don't always wear evenly. Get an oil sample analysis from each engine rather than assuming one result covers the machine. Case-drain flow test the main pumps and swing motor, and check cylinder rods and seals for scoring and weeping. On the undercarriage, measure sprocket, idler and roller wear on both sides and check track sag, since mining duty can hide heavy wear behind a low total hour count. Walk the center frame, counterweight mounts and boom/stick pin bosses for cracking or repair welds, and cycle through all working and lift modes on the monitor to confirm both engines respond together and the machine holds rated power in heavy-lift mode.
Compiled from owner and technician discussions across the industry — experiences vary by serial range and machine history.
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