Cat 3054C Specifications
| Engine Model: Caterpillar 3054C |
| Engine Type: 4-cycle inline 4-cylinder direct injection liquid-cooled diesel |
| Total Displacement: 268 cu.in (4.4 L) |
| Rated Engine Power: 50-110 Hp (37-82 kW) at 2200 rpm |
| Aspiration Type: Turbocharged, air-to-air aftercooling |
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The Caterpillar 3054C is a compact,
four-cylinder, turbocharged diesel engine widely used in construction
machinery, agricultural equipment, industrial power units, and marine
auxiliary systems. As part of Caterpillar’s 3000-series engine family,
the 3054C is engineered for versatility, fuel efficiency, and long-term
durability in demanding environments. It features strong cast-iron
construction, mechanical or electronic fuel-injection systems (depending
on version), excellent cold-start capability, and consistent torque
delivery throughout its operational speed range.
The 3054C became popular due to its dependable design, ease of
maintenance, and suitability for compact-to-mid-size machines that
require robust, efficient diesel power. Its proven reliability and long
service life make it one of Caterpillar’s most widely adopted mid-range
diesel engines.
The Caterpillar 3054C is a four-stroke, water-cooled, inline
four-cylinder engine with turbocharging and optional air-to-air
aftercooling. Displacement is approximately 4.4 liters (268 cubic
inches). Bore measures 105 mm (4.13 in), while stroke is 127 mm (5.00
in), producing a long-stroke configuration that enhances torque at lower
engine speeds. The compression ratio typically ranges from 17.0:1 to
18.5:1 depending on configuration.
Power output varies with application:
– Industrial: 75–110 hp (56–82 kW) at 2,200–2,400 rpm
– Agriculture: 65–100 hp (48–75 kW) at 2,200–2,400 rpm
– Generator-drive: 50–90 hp (37–67 kW) at 1,800–2,200 rpm
Peak torque is typically 300–420 Nm (221–310 lb-ft) at 1,400–1,600 rpm.
Idle speed is normally 750–850 rpm. Governed speed varies from 2,200 to
2,500 rpm. Firing order is 1-3-4-2.
The forged-steel crankshaft is supported by five main bearings, ensuring
stability and durability under heavy duty cycles. Pistons are
cast-aluminum alloy with reinforced crowns and machined bowls.
Connecting rods are forged steel with replaceable bearing inserts. The
camshaft is gear-driven, providing reliable timing and eliminating belt
maintenance.
The block is cast iron with thick cylinder walls and deep external
ribbing for strength and vibration control. Coolant passages fully
surround each cylinder for effective thermal regulation. The block
accepts multiple accessory mounts including hydraulic pumps,
alternators, and compressors.
The head is cast iron and incorporates direct-injection combustion
chambers. Four valves per cylinder—two intake and two exhaust—enhance
airflow and combustion efficiency. Valve operation is via rocker arms
actuated through pushrods from the gear-driven camshaft.
Cold valve-lash settings:
– Intake: 0.20–0.25 mm (0.008–0.010 in)
– Exhaust: 0.30–0.35 mm (0.012–0.014 in).
Fuel systems vary by configuration:
– Mechanical versions: rotary or inline mechanical injection pumps
– Electronic versions: ECM-controlled pump with precise timing
Fuel travels from the lift pump through a water separator and
fine-element filter to the injection pump. Injection pressures are
typically 250–350 bar. Injectors atomize fuel directly into the piston
bowl.
Fuel system maintenance:
– Fuel filters: every 250–300 hours
– Injector inspection: every 1,000–1,500 hours
– Water separator: drain as needed
– Pump timing (mechanical): at major service intervals.
A full-pressure wet-sump system with a gear-driven oil pump provides
engine lubrication. Oil passes through a full-flow filter before
reaching bearings, valvetrain components, and turbocharger bearings.
Oil capacity: 11–13 liters (11.6–13.7 qt)
Normal oil pressure: 300–420 kPa (44–61 psi) at operating speed
Recommended oil: SAE 15W-40 or 10W-30 diesel oil meeting API CH-4 or
higher.
Cooling is handled by a closed-loop system with a centrifugal water
pump.
A thermostat regulates coolant flow at:
– Opening: 82°C (180°F)
– Full open: 95°C (203°F)
Cooling capacity depends on installation, typically 12–15 liters
(12.7–15.8 qt). System pressure is maintained by a 70–90 kPa (10–13 psi)
radiator cap.
| Intake and Exhaust Systems |
Air intake varies by machine type:
– Construction: dual-stage dry filters
– Agriculture: cyclone pre-cleaners
– Industrial: oil-bath filters
Turbocharging increases air density and improves torque. Some models
feature air-to-air aftercooling. Exhaust manifolds are cast iron and
built to withstand high thermal cycling.
| Electrical and Starting Systems |
Systems include 12-volt or 24-volt electrical configurations.
Alternators typically supply 45–90 amps. Starter motors are 2.5–4.0 kW.
ECM-equipped versions monitor:
– Boost and intake temperature
– Coolant temperature
– Oil pressure
– Engine speed and load.
Depending on application, the engine can support:
– Hydraulic pumps
– PTO systems
– Air compressors
– Remote cooling
– Generator heads.
Approximate dimensions:
– Length: 950–1,050 mm (37.4–41.3 in)
– Width: 650–720 mm (25.6–28.3 in)
– Height: 850–920 mm (33.5–36.2 in)
Dry weight typically ranges from 430 to 520 kg (948–1,146 lb).
– Oil/filter: 250 hours
– Fuel filters: 250–300 hours
– Air filter: inspect 50 hours
– Coolant: replace every 2 years
– Valve adjustment: every 1,000 hours
– Injector service: 1,000–1,500 hours
– Compression testing: 2,000 hours.
– Cylinder head bolts: 160–180 Nm (118–133 lb-ft)
– Main bearing caps: 190–210 Nm (140–155 lb-ft)
– Connecting rods: 90–110 Nm (66–81 lb-ft)
– Flywheel bolts: 180–200 Nm (133–148 lb-ft)
– Crankshaft pulley bolt: 280–320 Nm (207–236 lb-ft)
– Oil drain plug: 40–55 Nm (30–41 lb-ft)
– Injector hold-downs: 25–30 Nm (18–22 lb-ft).
The Caterpillar 3054C powers:
– CAT 428/432 backhoe loaders
– CAT skid-steer and track loaders
– CAT telehandlers
– Small excavators
– Agricultural tractors
– Industrial forklifts
– Irrigation and pump systems
– Generator sets
– Marine auxiliary engines.
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