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CATERPILLAR C15 INFRAME ENGINE REBUILD KIT (C15103010HP)

Loss of power, excessive oil consumption, or poor fuel economy are signs that it may be time to rebuild the engine in your Caterpillar C15.

Minimize downtime and negative impacts on your revenue. Rebuild your engine with an inframe rebuild kit for your Caterpillar C15, from Highway & Heavy Parts!

We only provide new, high-quality parts in our Caterpillar C15 inframe rebuild kits. Each part follows strict OE specifications and tolerances and is built with hard-wearing materials for long-lasting durability.

This inframe kit comes with six cylinder kits, consisting of, liners, O-rings, pistons crowns, piston skirts, pins with retainers, and piston ring sets. It also includes all of the rod, main, and thrust bearings you need to keep your engine’s crankshaft moving. You will also get leak-free satisfaction with new gaskets for your upper engine, oil pan, exhaust manifold assembly, turbocharger, and regulator gasket kits. And finally, this inframe rebuild kit comes with a thermostat kit to keep your engine at optimum operating temperature.

Engine break-in is critical. Be sure to follow the proper break-in procedure to avoid engine complications with oil consumption, fuel economy, and engine power. And don’t forget to check out HHP’s wide selection of diesel engine parts, keeping your truck out of the service bay and on the road with Highway and Heavy Parts!

Caterpillar C15 Losing Power, High Oil Use, and Blowby? It May Be Time For An Engine Rebuild!


Backed by a 2-Year Warranty and Industry-leading service from our ASE certified technicians.

Order now by calling 844-447-1453 or visiting us online at highwayandheavyparts.com.

From diagnosis through delivery, we’re Highway and Heavy Parts!

FAQ’s For Caterpillar C15 Inframe Engine Rebuild Kit (C15103010HP)

1. What are the signs that my Caterpillar C15 engine needs an in-frame rebuild?  

If you’re experiencing loss of power, excessive oil consumption, poor fuel economy, or blowby, these are strong indicators that it may be time to rebuild your engine.

2. What’s included in the Caterpillar C15 in-frame rebuild kit from Highway & Heavy Parts? 

Our inframe kit includes six complete cylinder kits (liners, O-rings, piston crowns, skirts, pins with retainers, and ring sets), as well as rod, main, and thrust bearings. It also comes with all essential gaskets—upper engine, oil pan, exhaust manifold, turbocharger, and regulator—and a thermostat kit for optimal temperature control.

3. Are the parts in your in-frame rebuild kits new or remanufactured? 

All parts included in our Caterpillar C15 inframe rebuild kits are brand-new, built with durable materials and manufactured to strict OE specifications for consistent, long-lasting performance.

4. Is there a warranty for the Caterpillar C15 in-frame rebuild kit? 

Yes! Our C15 inframe rebuild kits are backed by a 2-year warranty, giving you peace of mind and confidence in your rebuild investment.

5. Why is engine break-in important after an inframe rebuild?

Proper break-in is essential to avoid future engine issues like high oil consumption or poor fuel economy. Following the correct procedure ensures your rebuilt engine performs at its best from the start.