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Cat C11 ACERT engines are the ideal solution for your demanding operations in the oilfield. Decades of field operation and intense research and development allow Cat C11 ACERT engines to deliver excellent performance with low operating costs and emissions. Equipment powered by C11 ACERT engines include workover rigs, pump skids, acidizing units, cementing units, and hydraulic power units. Cat engines are backed by the worldwide network of Cat dealers ready to support your operation with technical support, service, parts, and warranty. C11 ACERT engines, with ratings: 242-336 bkW (325-450 bhp) @ 1800-2100 rpm, meet China Stage II, EPA Tier 3 equivalent, EU Stage IIIA equivalent emission standards. They are available using U.S. EPA and EU Flexibility, and for other regulated and non-regulated areas.
Request a QuoteMaximum Rating450BHP
Displacement681in³
Minimum Rating325BHP
Governor and ProtectionElectronic (ADEM™ A3)
AspirationTurbocharged-Aftercooled
Flywheel and Flywheel HousingSAE 1 or SAE 2
Flywheel Teeth113 (SAE 1), 138 (SAE 2)
Rotation from Flywheel EndCounterclockwise
Stroke5.51in
Bore5.12in
EmissionsEPA and CARB Non-Road Mobile Tier 3, EU Stage IIIA
Length47.3in
Width41.6in
Height46.3in
Weight1967lb
Lube Oil System - Refill9gal (US)
Standard
Turbocharger, mid-mounted
Air inlet elbow 90°, 104.5 mm (4.11" OD) hose connection
Optional
Air cleaners
Precleaners
Turbo air inlet
Air lines
Standard
Electronic governing, PTO speed control
Programmable ratings
Cold mode start strategy
Automatic altitude compensation
Power compensation for fuel temperature
Programmable low and high idle and TEL
Electronic diagnostics and fault logging
Engine monitoring system — speed, temperature, pressure
J1939 Broadcast — diagnostic and engine status
Optional
Connection
Standard
Thermostats and housing
Jacket water pump — gear-driven
Front water pump inlet
Optional
Radiator — installed
Fan drive f/u/w Caterpillar installed radiator
Fan drive pulleys f/u/w customer-supplied radiators
Coolant conditioner
Water lines — pump inlet
Fan drive mountings
Fan height instructions
Fan adapters for suction fans
Fan adapters for blower fans
Suction fans
Blower fans
Coolant level sensor
Aftercooler lines
Standard
Exhaust manifold — dry
Front turbo exhaust
Optional
Muffler
Flexible fitting
Elbows
Straight exhaust adapter
Flange
Pipe
Rain cap
Clamp
Standard
See Mandatory Options
Standard
Electronic unit injector
Fuel filter — secondary, mid-mount, (LH 2 micron high performance)
Fuel transfer pump — front
Fuel priming pump — LH mid-mount
Optional
Fuel lines
Fuel cooler
Fuel fitting — fuel return and supply connections
Flexible fuel lines
Standard
Crankcase breather
Oil cooler
Oil filter — RH
Oil pan — front sump, 40 L capacity
Oil filler — LH front
Oil dipstick — LH mid-mount
Oil pump
Oil valve sampling — on oil filter base
Optional
Oil pan
Oil pan drain
Oil level gauges
Oil filter — bypass
Oil filter — remote
Lubricating oil
Oil filler
Fumes disposal
Standard
Crankshaft pulley and damper — 250 mm (9.84 in), 2 grooves 22.3 mm (.87 in) width
Hydraulic pump drive — SAE A, 11 tooth
1.41:1 drive ratio — counterclockwise rotation (45 lb-ft capacity)
Optional
Crankshaft pulleys
Crankshaft pulley — stack-on
Output flange
Flywheel stub shaft
Front stub shaft
Hydraulic pump drive
Hydraulic pumps — front
Hydraulic pumps — rear
Enclosed Clutch
Clutch Support
Standard
Vibration damper
Paint — Cat yellow
Lifting eyes
Automatic variable timing, electronic
Electronic installation kit (connectors, pins, sockets)
Literature
Standard
Flywheel housing or rear PTO
Throttle position sensor
Primary filter/water separator
Optional
Expansion chamber
Governors
Fittings
Optional
Refrigerant compressor and mounting
Optional
Charging alternators
Alternator mountings
Alternator guard
Alternator accessories
Optional
Gauges and instrument panels
Voltmeters
Gauge mounting
Ammeter
Optional
Front and rear engine supports
Structural steel base
Optional
Air shutoff
Air shutoff switch
Optional
Electric starting motors — 12 Volt, 24 Volt
Starting aids
Battery sets — 24 Volt, dry
Battery cable
Battery rack
Optional
Transmission cooler
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