Highway Heavy Parts is bringing you a new option when replacing Caterpillar Cylinder Heads. Now available for 3406E, C15 and C15 Acert engines is the brand new replacement cylinder head.
Continue reading Brand New Caterpillar Cylinder HeadsCategory: Caterpillar C15 Engine Parts: Durable Components for Legendary Performance
Broken or Cracked Cylinder Liner Flange
Have you been noticing issues with your diesel engine recently? There are obviously a lot of reasons why this might be happening, including broken or cracked cylinder liner flanges. If you’re interested in more information about what causes cylinder liners to fail, check out our blog dedicated to cylinder liner failures.
Continue reading Broken or Cracked Cylinder Liner Flange3406E / C15 Fuel in Coolant, Engine Miss Explained
If you’re running a C15 or 3406E diesel engine, you may have experienced your engine missing. So, why does that happen?
Continue reading 3406E / C15 Fuel in Coolant, Engine Miss ExplainedHHP is pleased to announce the addition of a wide range of new diesel engine products to their existing line of parts
Highway and Heavy Parts is pleased to announce the addition of a wide range of new diesel engine products to their existing line of parts.
Continue reading HHP is pleased to announce the addition of a wide range of new diesel engine products to their existing line of partsCATERPILLAR 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.
Continue reading CATERPILLAR C15 INFRAME ENGINE REBUILD KIT (C15103010HP)CUMMINS ISX15 INFRAME ENGINE REBUILD KIT (5405986)
A loss of power, excessive oil consumption, or poor fuel economy are signs that it may be time to rebuild your Cummins ISX 15.
Continue reading CUMMINS ISX15 INFRAME ENGINE REBUILD KIT (5405986)CATERPILLAR C15 CRANKSHAFT (2219364)
Caterpillar C15 Vibration Damper | Feeling Vibration Or Running Rough? – Call Us At 844.447.1453
Caterpillar C15 Vibration Damper For Sale. Take A Look!
Cash For Cores | Caterpillar 3406E, C15 and C15 Acert wanted! | $175 Per Core Return – Call 844.447.1453 For Further Information
We Buy Caterpillar Injector Cores! 3406E, C15, & C15 Acert Injector Cores.
Caterpillar C15 Camshaft | Engine Stalling Or Hearing A Ticking? – We Can Help! 844.447.1453
Why You Should Get Your Next Caterpillar C15 Camshaft From HHP!
CATERPILLAR 3406E TECHNICAL SPECIFICATIONS, SERIAL NUMBERS, & PREFIXES
Are you curious about your Caterpillar 3406E diesel engine? Well, we’re taking you through this engine in detail, so wonder no more! Read on to learn the history of the engine, as well as some common failures you might experience.
Continue reading CATERPILLAR 3406E TECHNICAL SPECIFICATIONS, SERIAL NUMBERS, & PREFIXESCATERPILLAR C15 OIL Cooler (2237962)
Is your C15 leaking oil? Black smoke rolling from the exhaust? Or is your engine experiencing decreased performance? You may need an oil cooler replacement in your Caterpillar C15.
Continue reading CATERPILLAR C15 OIL Cooler (2237962)Learn 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.
