Call us

Caterpillar C15 ACERT Used Diesel Engine

Caterpillar C15 ACERT Used Diesel Engine


We offer a variety of used Caterpillar C15 ACERT used diesel engines that fit both mid and heavy duty class 8 trucks as well as industrial applications. The most common truck engine we have in stock are Caterpillar C15 ACERT 475 HP truck engines. For firetruck and RV applications C15 ACERTS can be max rated via the ECM to 600-625 HP. All of our used runners are test run and inspected for wear.

Caterpillar C15 ACERT Used Engine Includes:

  • Engine Block
  • Cylinder Head
  • Steel Pistons
  • Connecting Rods
  • Camshaft and Lifters
  • Rockers
  • Crankshaft
  • Front Cover and Gear Housing
  • Valve Cover
  • Oil Pan and Pickup Tube
  • Includes gaskets, liners, rings and ancillary components
  • Mechanically Actuated Electronic Fuel Pump (MEUI)
  • EGR
  • ACERT Emission Technology
  • Charge Air Cooler
  • Twin Turbocharger
  • Injectors
  • Wiring Harness 120-Pin Connector
  • Test Run
  • Inspected for critical wear
  • Engine Turns 360
  • 90 Day Block and Crank Warranty

ESN Families Available: (Truck): 6NZ, B5R, BXS, MHP, MXS, NXS, SDP, RLA (Marine), JAS (Industrial), JRE (Industrial)

NOTE: Remanufactured options are also available built specifically to your ESN

CAT C15 ACERT Specs:

  • Displacement – 15.2 L Displacement
  • Cylinders – 6
  • Type- Electronic
  • Combustion – Direct Injected
  • Horsepower – 435-625 HP
  • Max Torque – 1550 -2050 ft-lbs @2100 RPM
  • Optimal Rated Speed – 1550-1650 RPM
  • Bore & Stroke – 5.40 x 6.75 in (137 x 171mm)
  • Compression Ratio: 18:1
  • Aspiration – Water Cooled
  • Weight – 3090 lbs approx, dry
  • Oil Capacity – 41 qts.
SKU: BBENG32 Categories: ,
You’ve come to the right place for all of your heavy duty diesel engine needs. We here at Big Bear Engine Company are old school machine shop guys that know the value of your time whether it be out in the field for an industrial job or at play with an off-road engine swap. We are old school machine shop guys and guarantee the workmanship of all of our engines including our Caterpillar C15 ACERT Used Diesel Engines.

Availability: In Stock



Got an Engine Down?

Discover your best options!
Get our FREE 8-Page Diesel Engine Replacement Guide

    I am looking for an