Caterpillar Engines & Parts

Kustom Truck Parts offers premium, direct-fit Caterpillar engine parts and upfit kits engineered for reliable performance in semi-truck repowers, engine conversions, and ongoing maintenance. Caterpillar's legendary torque and durability make it a staple in working trucks, but proper integration demands the right supporting components to ensure precise fitment, optimal cooling, clean electronic interface, and long-term reliability.

Our selection includes conversion-ready hardware like chassis specific mounting brackets, front engine upfit kits, fan hubs, CAC intake elbow kits and more — designed specifically for Caterpillar 3406E, C7, C10, C12, C13, and C15 engines in popular chassis like Peterbilt, Kenworth, Freightliner, and Western Star.

Whether you're rebuilding a CAT-powered rig, addressing common wear items, or completing an engine swap, these high-quality parts eliminate guesswork, reduce installation time, and minimize downtime for owner-operators, diesel shops, and fleets.

Frequently Asked Questions

What distinguishes a factory-remanufactured Caterpillar engine from an overhauled engine?

Factory-remanufactured engines are assembled by Caterpillar using OEM specifications, remanufactured components, and testing procedures. When the engine is built, every component has been replaced and the engine carries superior warranty coverage. Overhauled engines are often rebuilt by CAT dealers, engine builders and unrelated third parties and can significantly vary in build profile and overall quality. Factory remanufactured options offer more reliability and superior warranty coverage.

What core return or exchange requirements apply when purchasing a Caterpillar engine from Kustom Truck Parts?

Caterpillar engines require a core that can be returned for credit or purchased outright. For core credit the engine must rotate 360 degrees, not have been through a fire and complete with no missing components. You'll receive a credit once the core has been inspected by CAT. Detailed instructions are provided at the time of purchase to simplify the core return and eligibility process.

How do I know that the Caterpillar engine I choose will fit my truck chassis and electronic system?

Our team can verify compatibility by cross-checking your VIN and engine serial number. This ensures your selected engine, mounts, and harnesses will align correctly with your truck’s systems.

What warranty coverage is provided for Caterpillar engines?

Warranty terms vary depending on the model of engine purchased. Caterpillar factory remanufactured engines include new truck engine warranty covering parts, labor and towing. Please contact Kustom Truck Parts for specifics before ordering.
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