Replacement Engines for Your Cat® and Other OEM Equipment.

Explore replacement engines specifically engineered with your Caterpillar fleet in mind.

Replacement Engines for Your Cat® and Other OEM Equipment.
Replacement Engines for Your Cat® and Other OEM Equipment.

Cat Replacement Engines Are Here for the Lifecycle of Your Equipment.

Replacement Engine

Service engine replacements are a part of every engine lifecycle. When the time comes to replace your Cat® engine, don’t settle for overpriced, time-consuming full overhauls or off-brand, subpar alternatives. Go with the yellow standard: Cat service replacement engines for your Cat powered equipment.

Caterpillar offers the broadest range of replacement engine options in the industry—including new, used and reman full engine replacements—complete with like-new performance, available same-as-new warranties* and, of course, the world-class support of the Cat Dealer Network.

Maximize machine life. Minimize downtime. Save up to 25% vs. overhauls. It’s what you get with a Cat service replacement engine.

Contact your dealer

*Cat Reman cost savings based on return of core; core conditions apply. Warranty can vary by model and application; limitations may apply. For complete details about the applicable Caterpillar Limited Warranty, contact an authorized Cat dealer.

Bring On the Cat Service Engine Replacement Benefits.

Big Time Minimized Downtime

Cut Downtime in Half

Quick turnarounds are our specialty, giving you the flexibility to choose what’s best for your operation’s schedule.

Guaranteed like-new engine performance

Good-As-New Engine Performance

Each Cat replacement engine is designed by the original manufacturer (us) for like-new performance. We ensure your replacement engine will meet or exceed original machinery specifications, so you can get back to work with confidence—in record time.



Cat replacement engines give you like-new engine performance at a fraction of the cost of new. Our high-powered, cutting-edge engine solutions also maximize the performance potential of other machine refurbishments to boost your all-around productivity and bottom line.

Way simpler than overhauling

Simpler Than Overhauling

Got extra time for disassembly, inspection, cleaning, ordering, reconditioning and reassembly? Didn’t think so. Cat replacement engines get you back to tip-top shape and top-notch performance in no time, especially when compared to the slog of machine overhauls. With Cat replacement engines, you get like-new performance in the short time it takes to remove the old and assemble and install the new.

Guaranteed like-new engine performance

Boost Small Engines

While Cat replacement engines are always a sound option for your fleet, they work particularly well with small engines from 0.5 to 7.1 litres. Treat the little guys right (and skip the overhaul) with the boost from a Cat replacement engine.

From complete, new or remanufactured Cat replacement engines, Caterpillar stocks the most options in the industry.

Cat Industrial Diesel Engines

Engineered with brand-new factory parts that meet emissions standards, Cat replacement engines are built to help you minimize downtime and reduce labor costs.

Cat replacement engine arrangements, complete with:

  • Same-as-original performance
  • Lower repair and overhaul costs
  • Reduced downtime
  • Upgrade of critical design improvements
  • Dynamometer-tested
  • Solid warranty protection
  • Installation-ready design
  • Quick turnarounds for maintaining productivity

Options and warranty

  • New engines only
  • Minimum standard warranty of 12 months
Cat® Long Blocks are an economical engine replacement option to repower equipment and commercial engine applications.

Industrial Diesel Power Units

By updating critical parts like ancillaries, Cat Long Blocks offer a more cost-effective approach to engine replacement that restores machinery to factory-standard performance.

Cat Long Blocks come assembled with the following components:*

  • Engine Block Group
  • Cylinder Head Group
  • Valve Train Mechanism Group
  • Valve Train Mechanism Cover
  • Front Housing Group
  • Crankshaft Group
  • Rod and Piston Assembly
  • Camshaft Group
  • Lifting Eye Group
  • Front Gear Group
  • Cover Group

Options and warranty

  • Available options include new, new with core and remanufactured engines
  • Minimum standard warranty of 12 months

*Consist can vary by engine model, so consult Caterpillar for consist details and availability.

Cat® Short Blocks offer greater engine replacement value because they are able to reuse the working components of a failed engine.

Industrial Diesel Fire Pumps

Our most economical option, Cat Short Block engine replacements address any and every engine concern. Cat Short Block assembly specification includes cylinder block, crankshaft, pistons, connective rods and rear-end oil seal.

Options and warranty

  • Available options include new, new-for-old and remanufactured engines
  • Minimum standard warranty of 12 months

Engine Replacement Options

When it comes to your Cat powered equipment or Cat machines, you have options for replacement engines. Check out Cat complete replacement engines, long block and short block options—now with Cat reman options available for all three.

Engine Replacement Options

Find a Dealer Near You.

With world-class expertise, technical support and operational tips, you can count on your Cat dealer to keep you up and running.


Find Your Dealer
Find a Dealer Near You.
Find a Dealer Near You.

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