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What Parts We Offer; Caterpillar, Detroit Diesel and More

At Highway and Heavy Parts, it’s our mission to take the risk out of buying diesel engine parts for our customers. So we work hard to stock parts for a large range of applications.

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Caterpillar C15 Acert, C15 Spacer Plate (6I4421)

Are you in the middle of an engine overhaul? Installing a new cylinder head for your C15? Have you recently blown a head gasket?

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Caterpillar C15 Acert Performance Exhaust Manifold! | HHP’s Product Spotlight – Call 844.447.1453

Caterpillar C15 Performance Exhaust Manifold From HHP. Check This Out!

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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.

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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!

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Caterpillar 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!

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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.

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Cylinder Head For Caterpillar C15, C15 ACERT, & 3406E (20R2645)

Sometimes, you just have to replace your cylinder head. You might be rebuilding your engine, or completing a repair from a blown head gasket or cracks between your exhaust valves.

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Stage 4 Performance Cylinder Head For Caterpillar C15 (1835296)

When you put in the money and effort to upgrade components on your Caterpillar diesel engine, you want to make sure everything can handle the increased performance.

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Camshaft Problems with Caterpillar C15 ACERT Engines

Camshaft problems can spell major issues for your Caterpillar C15 ACERT. This component needs to be functioning at its best for optimal engine performance.

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Head Gasket Failure In Your Caterpillar C15 Acert Engine

Your head gasket creates the seal between the engine block and the cylinder head, allowing for combustion. It’s vital to the overall performance of your engine, and without it, your engine couldn’t run properly.

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Ultra Performance Cylinder Heads

At Highway and Heavy Parts, we’re dedicated to bringing you the best information about diesel engine parts around. We want you to feel confident as you shop for parts, grow your business, and successfully identify what you need for the job at hand.

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Find genuine and aftermarket Caterpillar C15 ACERT engine parts for heavy-duty trucks, construction equipment, and industrial applications at Highway and Heavy Parts. Our comprehensive inventory includes cylinder heads, turbochargers, fuel injectors, pistons, and complete engine rebuild kits designed for reliable performance in demanding conditions. Whether you need replacement parts for preventive maintenance or major engine rebuilds, we stock high-quality components that meet or exceed Caterpillar specifications.

The Caterpillar C15 ACERT engine powered Class 8 trucks, excavators, dozers, and generator sets across transportation and construction industries from 2003 to 2009. Our parts are compatible with all C15 ACERT model variations and come with manufacturer warranties for genuine parts and quality guarantees for aftermarket alternatives. Professional mechanics, fleet managers, and equipment operators trust Highway and Heavy Parts for genuine Caterpillar quality and competitively priced aftermarket solutions.

Complete C15 ACERT Parts Inventory

What C15 ACERT parts are available at Highway and Heavy Parts?

Our extensive C15 ACERT inventory includes cylinder heads, engine blocks, turbochargers, fuel system components, cooling system parts, and complete engine rebuild kits. We carry both genuine Caterpillar parts and certified aftermarket alternatives from trusted manufacturers. Popular items include fuel injector sleeves, cylinder head gaskets, turbocharger assemblies, oil pumps, water pumps, and camshafts specifically designed for the C15 ACERT platform.

How do I identify the correct C15 ACERT engine parts?

C15 ACERT parts are identified using Caterpillar part numbers and engine serial numbers located on the engine block. The C15 ACERT was produced from 2003–2009 with specific part variations by model year and application. Our technical team can help verify compatibility using your engine serial number, ensuring you receive the exact components needed for your specific C15 ACERT configuration.

What equipment and applications use C15 ACERT engines?

C15 ACERT engines power Peterbilt, Kenworth, Freightliner, International, and other heavy-duty truck manufacturers, as well as Caterpillar construction equipment, including 330C and 336D excavators, 966G wheel loaders, and various industrial generator sets. These engines were designed for highway trucking, construction, mining, and stationary power generation applications requiring reliable diesel performance.

Why Choose Highway and Heavy Parts for C15 ACERT Components

  • Genuine Caterpillar and Quality Aftermarket Options
    We stock both genuine Caterpillar C15 ACERT parts and high-quality aftermarket alternatives. Our aftermarket parts are manufactured to OEM specifications, offering excellent value without compromising performance or reliability. All genuine parts come with Caterpillar warranties, while our aftermarket components include quality guarantees.
  • Expert Technical Support and Compatibility Assistance
    Our experienced technical team understands C15 ACERT engine specifications, common failure points, and engine rebuild requirements. Whether you’re performing routine maintenance, addressing specific engine problems, or planning a complete engine rebuild, we provide the expertise and parts needed for successful repairs.
  • Fast Shipping and Professional Service
    Highway and Heavy Parts maintains an extensive C15 ACERT inventory for quick order fulfillment. We understand downtime costs in commercial applications and work to get your equipment back in service quickly with reliable parts and professional customer service.

C15 ACERT Engine Specifications and Service Information

The Caterpillar C15 ACERT (Advanced Combustion Emission Reduction Technology) engine featured a displacement of 15.2 liters, producing between 425 to 550 horsepower depending on application and model year. Key service intervals include oil changes every 15,000 to 25,000 miles, fuel filter replacement, and turbocharger maintenance. Common service items available in our inventory include oil filters, fuel filters, air filters, belts, hoses, and gaskets specific to C15 ACERT requirements.

Understanding proper maintenance schedules and using quality replacement parts extends C15 ACERT engine life and maintains optimal performance. Our parts inventory supports both scheduled maintenance and unexpected repairs, helping keep your C15 ACERT-powered equipment operating efficiently.

Browse our complete selection of Caterpillar C15 ACERT engine parts, or contact our technical team for specific part identification and compatibility assistance. Highway and Heavy Parts – your trusted source for heavy-duty diesel engine components.