Power loss, poor acceleration and whining noise from your engine are signs your Caterpillar C15 Turbocharger may be failing.
Continue reading Caterpillar C15 Turbocharger (137-4832)Category: Caterpillar C15 Engine Parts: Durable Components for Legendary Performance
Engine Rebuild Kit for Caterpillar C13 (MCOH3882310)
Is your Caterpillar C13 just not running like it used to? Is it time for a rebuild?
Continue reading Engine Rebuild Kit for Caterpillar C13 (MCOH3882310)Engine Rebuild Kit for Caterpillar C15 (C15101-010)
Are you noticing an increase in oil consumption in your Caterpillar C15? Maybe you’re noticing engine knocking or excessive smoke?
Continue reading Engine Rebuild Kit for Caterpillar C15 (C15101-010)Caterpillar C15 Acert Performance Exhaust Manifold! | HHP’s Product Spotlight – Call 844.447.1453
Caterpillar C15 Performance Exhaust Manifold From HHP. Check This Out!
Caterpillar C15 Inframe Engine Rebuild Kit | Is Your Engine Knocking Or Loss Of Compression? – Give Us A Call 844.447.1453
Caterpillar C15 Inframe Rebuild Kits From HHP. Call Today To Learn More!
Caterpillar Stage 2 C15 Loaded Cylinder Head (1835296)
When it’s time to replace a cylinder head in your C15, C15 ACERT, or 3406E, you can put another standard head in service that will work well for your truck – or, you can replace it with a high-performance cylinder head equipped with better components, built to handle the extreme conditions your engine will encounter.
Continue reading Caterpillar Stage 2 C15 Loaded Cylinder Head (1835296)Caterpillar C15, C15 Acert, 3406E Stage 2 Cylinder Head | HHP Carries Diesel Engine Parts – Call Us Today at 844.447.1453
HHP Has Diesel Engine Parts Catalogs For Caterpillar, Cummins, Detroit, And Navistar Engines!
Symptoms Of A Failing C15 Cylinder Head
A failed cylinder head in your Caterpillar C15 can be the source of headaches and costly repairs.
Continue reading Symptoms Of A Failing C15 Cylinder HeadCaterpillar C15, C15 Acert, 3406E Stage 2 Cylinder Head With Exhaust Inconel Valves | HHP Sells Diesel Engine Parts 844.447.1453
Why Upgrade To A Caterpillar C15 Stage 2 Cylinder Head w/Inconel Valves From HHP!
What Does A Cylinder Head Do?
If you’re shopping to replace your cylinder head, we know it can seem a little daunting.
Continue reading What Does A Cylinder Head Do?Caterpillar C15 & 3406E Fuel Injector | Rebuilding An Engine Or Does Your Fuel System Need Service? – Call HHP Today 844.447.1453
Caterpillar C15 / 3406E Fuel Injector Upgrade From HHP!
Symptoms of a Failing C15 ACERT Turbocharger
Your turbocharger is important to the overall health of your CAT C15 ACERT diesel engine. So, it’s important to replace it when something goes wrong.
Continue reading Symptoms of a Failing C15 ACERT TurbochargerLearn about premium Caterpillar C15 engine parts for Class 8 trucks, heavy equipment, and industrial applications at Highway and Heavy Parts. Our inventory includes cylinder heads, camshafts, pistons, turbochargers, and complete engine rebuild kits engineered to meet or exceed OEM standards. Whether you’re maintaining a legacy C15 or performing a full engine rebuild, we offer parts designed for long-lasting performance in demanding diesel environments.
The Caterpillar C15 (pre-ACERT) engine, introduced in the early 2000s, is known for its simplicity and durability. With a 15.2L displacement and horsepower ratings ranging from 435 to 550 HP, it was a workhorse in over-the-road trucks and vocational equipment. Our C15 parts are compatible with popular models across Freightliner, Kenworth, Peterbilt, and Caterpillar construction equipment.
What C15 Engine Parts Are Available?
We stock engine blocks, cylinder kits, engine bearings, camshafts, fuel system components, turbochargers, oil pumps, gaskets, and complete C15 engine rebuild kits. Choose from genuine Caterpillar parts and high-quality aftermarket alternatives designed for direct-fit installation.
How Do I Identify Parts for a C15 Engine?
Use your engine’s serial number (prefixes like 6NZ or MBN) located on the engine data plate. Our technical team can help verify compatibility to ensure you get the right components the first time.
Why Choose HHP for C15 Parts?
- Industry-Best Warranties on Aftermarket Components
- Fast Shipping from Strategically Stocked Warehouses
- In-House Diesel Technicians for Expert Support
The Caterpillar C15 remains one of the most trusted engines in the diesel world. Maintain its performance with trusted parts from HHP.
FAQs for the Caterpillar C15
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What’s the difference between the C15 and C15 ACERT engines?
The C15 is the original pre-ACERT version of Caterpillar’s 15.2L engine, known for mechanical simplicity and reliability. The ACERT version added emissions components and electronics for EPA compliance. -
What serial numbers are associated with the C15 engine?
Common serial number prefixes include 6NZ, MBN, and 1LW. These help identify part compatibility, especially for engine rebuild kits and fuel system components. -
Can I use aftermarket parts in a C15 engine rebuild?
Yes, high-quality aftermarket parts manufactured to OEM specifications are available and widely used for C15 engine rebuilds. They offer cost savings without compromising reliability. -
What trucks use the C15 engine?
The C15 engine was used in Freightliner, Peterbilt, Kenworth, and International Class 8 trucks, as well as in some Caterpillar construction equipment. -
How often should C15 components like turbos and injectors be replaced?
Fuel injectors typically last 300,000 to 400,000 miles, while turbochargers may last 500,000 miles or more, depending on load and maintenance.
