Caterpillar 814B
Maintenance schedule, common problems & OEM parts breakdown
The Caterpillar 814B is a mid-size wheel dozer designed for high production in applications such as road maintenance, reclamation, and coal stockpiling. This machine features a Caterpillar 3306 engine providing 216 hp (161.1 kW) of gross power. It operates with an operating weight of approximately 45,371.2 lb (2,0580.0 kg) and utilizes 23.5-25 12PR tires. The configuration includes a 4-speed forward and 4-speed reverse transmission and a blade capacity of 3.9 yd³ (3.0 m³).
The 814B represents a durable generation in the wheel dozer lineage, positioned between earlier models and successors like the 814F series. In today's used market, this machine remains significant due to its mechanical reliability and ease of serviceability. Its presence in the parts market is sustained by the availability of common Caterpillar components, making it a viable choice for operators seeking proven performance without the complexity of modern emissions-heavy systems.
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.
Caterpillar 814B specifications
Engine
| Engine Model | Cat 3306 or 2236 |
| Gross Power | 216 hp (161.1 kW) |
| Displacement | 640.8 cu in (10500.9 cc) |
Weights
| Operating Weight | 45371.2 lb (20580.0 kg) |
Dimensions
| Length with Blade on Ground | 22.39 ft (6.83 m) |
| Width Over Tires | 9.4 ft (2.87 m) to 112.8 in (286.5 cm) |
| Height to Top of Cab | 11.7 ft (3.57 m) to 140.4 in (356.6 cm) |
| Wheelbase | 11 ft (3.35 m) to 132.0 in (335.3 cm) |
| Ground Clearance | 1.38 ft (0.43 m) to 16.8 in (42.7 cm) |
| Tire Size | 23.5-25 12PR (L-3) |
Performance
| Max Speed - Forward | 18.6 mph (29.9 km/h) to 29.93 kph |
| Max Speed - Reverse | 21.2 mph (34.1 km/h) to 34.12 kph |
| Transmission Gears | 4 Forward / 4 Reverse |
| Transmission Type | Cat Planetary Power Shift |
Blades
| Blade Capacity | 3.9 yd³ (3.0 m³) |
Service Capacities
| Fuel Capacity | 122.1 gal (462.2 l) to 462.15 l |
Values vary by configuration, region, and serial range — confirm against your machine before planning transport or lifts.
814B fluids & capacities
| System | Capacity | Recommended fluid |
|---|---|---|
| Engine Crankcase (w/ filter) | Cat DEO (SAE 15W-40, SAE 10W-30); Cat DEO-ULS (SAE 15W-40, SAE 10W-30); Cat DEO-ULS Cold Weather (SAE 0W-40) for ECF-3 / API CJ-4 requirements | |
| Cooling System | Cat ELC (50/50 Premix); Cat DEAC (Concentrate); Cat NGEC (Premix 50/5/0) | |
| Fuel Tank | 122.1 gal (462.2 l) | |
| Transmission / Powertrain | Cat TDTO (SAE 10W, SAE 30, SAE 50); Cat TDTO-TMS (Synthetic Blend); Cat TDTO Cold Weather (0W-20) | |
| Bevel Gear / Steering Compartments | Cat TDTO; Cat GO (SAE 80W-90, SAE 85W-140); Cat Synthetic GO (SAE 75W-140) | |
| Final Drives (each) | Cat TDTO; Cat FDAO (SAE 60); Cat FDAO SYN (Synthetic) | |
| Hydraulic System / Tank | Cat HYDO Advanced 10; Cat HYDO Advanced 30 (for hot climates); Cat Bio HYDO Advanced (biodegradable) | |
| Grease | Cat Multipurpose Grease (low-load/low-speed); Cat Advanced 3Moly Grease (medium-load/medium-speed); Cat Ultra 5Moly Grease (high-load/high-speed); Cat Desert Gold Grease (hot-weather); Cat Arctic Platinum Grease (cold-weather) |
Capacities are refill values from factory literature — always fill to the dipstick/sight gauge, not the number.
Caterpillar 814B maintenance schedule
| Service interval | Tasks |
|---|---|
| Every 10 h |
|
| Every 250 h |
|
| Every 500 h |
|
| Every 1,000 h |
|
| Every 2,000 h |
|
Servicing the 814B beyond the schedule
Predictive Maintenance & Fluid Analysis
Utilize Cat S.O.S Services to monitor engine oil, hydraulic fluid, and coolant. Analyze samples for wear metals like iron or copper, and contaminants such as silicon from dirt ingestion or sodium from coolant leaks. Regular hydraulic oil sampling helps detect particle counts and oxidation before pump failure occurs. For the 814B, maintaining low cross-contamination when using Cat HYDO Advanced oils is critical for protecting valve bodies.
Corrective & Common Repairs
Monitor hydraulic hoses for cracks or abrasion to prevent high-pressure leaks. Inspect the 3306 engine for turbocharger issues or air leaks that cause abnormal smoke. Check transmission and final drive oil levels frequently to avoid gear damage. If milky appearance is noted in oil, investigate potential head gasket failure causing coolant contamination. Ensure all electrical switches, such as binary pressure switch kits, are properly seated and wired.
Overhaul & Rebuild Points
Plan for major component evaluation during 2,000-hour intervals. Key rebuild focus areas include the engine oil/filter system, transmission service, and hydraulic system oil changes. Inspect structural welds on the blade and push arms for fatigue. Evaluate the condition of the 3306 engine pistons and rings if oil consumption increases. Comprehensive structural inspections are necessary to identify cracks in the chassis or articulation joints.
Seasonal & Environment Servicing
In dusty, sandy, or quarry environments, check air filters daily and clean radiator fins frequently to prevent overheating. Shorten engine oil drain intervals to 200 hours if operating in extreme heat. For cold weather operations, utilize Cat Arctic Platinum Grease and appropriate winter-grade lubricants. Ensure the fuel system is drained of water regularly to prevent freezing or microbial growth during periods of low usage or storage.
814B fault codes & troubleshooting
| Code | Meaning | Likely cause | What to do |
|---|---|---|---|
| 110-0 | Engine Coolant Temperature — Above Normal | Low coolant level, thermostat failure | Inspect cooling system, refill coolant, test thermostat |
| 110-3 | Engine Coolant Temp Sensor — Voltage High | Open circuit or sensor failure | Check wiring; replace sensor if confirmed faulty |
| 174-3 | Engine Fuel Temperature — Voltage Above Normal | Open circuit in sensor wiring | Inspect harness and replace sensor if necessary |
| 190-8 | Engine Speed — Abnormal Frequency | Speed sensor air gap, sensor failure, or tone ring damage | Check sensor gap; test speed sensor and tone ring |
| 41-3 | 8-Volt DC Supply — Voltage Above Normal | Short to power on 8V reference circuit | Inspect sensors sharing the 8V supply and isolate fault |
| 41-4 | 8-Volt DC Supply — Voltage Below Normal | Short to ground on 8V reference circuit | Disconnect sensors one at a time to locate short |
| 94-1 | Fuel Pressure — Low Fuel Pressure | Fuel system restriction or supply issue | Check fuel filters and supply lines |
| 100-11 | Oil Pressure Sensor — Very Low Oil Pressure | Low engine oil level or pump failure | Check oil level and inspect oil pressure sensor/circuit |
Codes and remedies are general guidance for this model family — always confirm with diagnostic tooling and your dealer before major repairs.
814B attachments & work tools
Blades
Standard blade capacity is 3.9 yd³ (3,0 m³). Specific configurations for S, SU, or A types and VPAT availability are not documented for this exact serial range — verify with your dealer.
Rippers
Ripper options such as multi-shank or single-shank and specific weights are not specified in the available technical documentation for the 814B model.
Winches
Specific winch classes or towing winch options for the 814B are not documented; refer to factory spec sheets for available rear-mounted configurations.
Drawbars/Counterweights
Detailed specifications for drawbar or counterweight dimensions and weights are not provided in the source text.
Cab/ROPS Guarding
Specific guarding options for forestry or waste configurations are not listed, though the machine is noted for use in various industries including waste management.
Hydraulic Arrangement
The lift/tilt system uses a variable displacement piston with a maximum flow of 23.5 gpm (89 l/min) at 2,200 rpm. Steering utilizes a pilot, load-sensing system with a maximum flow of 38.8 gpm (146.9 l/min) at 2,200 rpm.
All 814B assemblies by section
Every catalogued assembly group for the Caterpillar 814B. Open an assembly to preview the parts inside — full OEM part numbers are available in Heavy Parts AI.
Basic Engine
9n-5760 Damper Gp
| 9N***60 | Damper Group | 1 |
Engine Arrangement
284-3288 Conversion Ar-Engine
| 28***88 | Conversion Ar-Engine | 1 |
Fuel System
7c-8993 Fastener Gp-Fuel Inj Pump
| 7C***93 | Fastener Group-Fuel Inj Pump | 1 |
111-5162 Control Gp-Fuel Ratio
| 11***62 | Control Group-Fuel Ratio (Basic) | 1 |
2w-2410 Governor Gp
| 2W***10 | Governor Group | 1 |
111-3769 Pump Gp-Fuel Injection
| 11***69 | Pump Group-Fuel Injection | 1 |
4p-9827 Pump Gp-Fuel Injection
| 4P***27 | Pump Group-Fuel Injection | 1 |
115-7536 Pump Gp-Gov & Fuel Inj
| 11***36 | Pump Group-Gov & Fuel Inj | 1 |
7c-8992 Seal Gp-Pump
| 7C***92 | Seal Group; -Fuel | 1 |
8n-7276 Torque Control Gp
| 8N***76 | Torque Control Group | 1 |
Service Equipment And Supplies
284-3300 Kit-Engine Parts
| 28***00 | Kit-Engine Parts | 1 |
284-7809 Kit-Engine Parts
| 28***09 | Kit-Hardware; (Emission Upgrade) | 1 |
814B serial number reference
Locate the machine ID plate on the outer frame. The serial number prefix consists of the first three alphanumeric characters of the Product Identification Number (PIN). For the 814B, the prefix 11A is associated with the 814 series; confirm specific B-series configuration via dealer lookup.
| Prefix | Identifies | Notes |
|---|---|---|
| 11A | 814 (Standard) | Identifies the base 814 model configuration. The 814B is a specific variant within this family; verify exact build configuration with dealer using full PIN. |
Frequently asked questions
What engine is used in the Caterpillar 814B?
The Caterpillar 814B is powered by a Caterpillar 3306 engine with a displacement of 640.8 cu in (10,500.9 cc).
What is the operating weight of this machine?
The operating weight for the 814B is 45,371.2 lb (20,580.0 kg).
What model replaced the 814B?
The Caterpillar 814F series serves as a successor in the wheel dozer lineup.
What 814B owners discuss
What are the common hydraulic system failure modes for this machine type?
What engine-related performance issues should be monitored?
What are the primary electrical failure causes in Caterpillar machines?
What specific fluid types are recommended for maintaining the hydraulic system?
What should be checked regarding the engine's cooling system?
What is the most critical item to check when purchasing a used 814B?
Compiled from owner and technician discussions across the industry — experiences vary by serial range and machine history.
Need a specific 814B part?
Search live OEM part data, check fitment, and cross-reference alternatives with Heavy Parts AI.