C15 ACERT™ Water-Cooled Mainfold Engine

C15 ACERT™ Water-Cooled Mainfold Engine

Cat C15 ACERT engines are the ideal solution for your demanding operations in the oilfield. Decades of field operation and intense research and development allow Cat C15 ACERT engines to deliver excellent performance with low operating costs and emissions.Applications powered by C15 ACERT engines include workover rigs, pump skids, nitrogen units, acidizing units, cementing units units, blenders, 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.C15 ACERT water-cooled manifold engines, with ratings: 400-403 bkW (536-540 bhp) @ 1800-2000 rpm meet IMO Tier II, U.S. EPA Marine Tier 3 emissions standards. They are available using U.S. EPA and EU Flexibility, and for other regulated and non-regulated areas.

General Specifications

Minimum Rating
Maximum Rating
Flywheel and Flywheel Housing
SAE No. 1
Flywheel Teeth
113 (SAE 1)


IMO Tier II Certified, Marine Tier 2 Certified, Marine Tier 3 Capable



Standard Equipment

  • Air Inlet System
    • Remote-mounted aftercooler with shutoff, 90° turbo inlet connection, 101.6 mm (4") hose connection with shutoff; separate circuit aftercooler with straight turbo inlet connection, 127 mm (5") hose connection
  • Control System
    • 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 and protection system (speeds, temperature, pressure), J1939 broadcast (diagnostic, engine status and control)
  • Cooling System
    • Thermostat and housing — outlet vertical; jacket water pump — gear-driven, centrifugal; RH front water pump inlet
  • Exhaust System
    • Right rear turbo exhaust, watercooled turbine housing, carbon steel exhaust manifold — wet
  • Flywheels And Flywheel Housing
    • SAE 1 flywheel housing standard, see price list for flywheel options
  • Fuel System
    • Electronic unit injector; fuel priming pump — upward angled; engine-mounted secondary fuel filter, front-mounted fuel transfer pump — LH front; fuel sample valve — mounted on fuel filter base
  • Lube System
    • Oil cooler; RH oil filter; rear sump 38 L oil pan; valve cover oil fill, optional front oil fill; oil gauges standard with LH and RH access; oil valve sampling on oil filter base; remote-mount oil filter kit
  • Mounting System
    • Front support with mounting provision for LH or RH alternators
  • Power Take-off
    • SAE B options for SCAC and REMAC: single cylinder ATEX air compressor; dual cylinder air compressor, SAE B drive adapter; SAE A drive for REMAC
  • Front Engine Accessory Drive
    • 3 v-groove standard — optional 4 and 5 groove 203.2 mm (8.0") diameter crankshaft, 17.5 mm (11/16") v-belt; optional v-belt or 8-groove accessory drive for 240.39 mm (9.46") diameter pulley; LH and RH mounting poly v-belt; CSA 24V 65 amp alternator — LH and RH mounting poly v-belt; variable fan heights and ratios with 3 and 4 groove fan drives (see Price List)
  • General
    • Vibration damper, lifting eyes, automatic variable timing — electronic, electronic installation kit 70-pin connector (connectors, pins, sockets), literature GP Owner & Operator, paint