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 TurbochargerCategory: Caterpillar C15 ACERT Engine Parts: Complete Diesel Components and Rebuild Solutions
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.
Continue reading Cylinder Head For Caterpillar C15, C15 ACERT, & 3406E (20R2645)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.
Continue reading Stage 4 Performance Cylinder Head For Caterpillar C15 (1835296)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.
Continue reading Camshaft Problems with Caterpillar C15 ACERT EnginesHead 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.
Continue reading Head Gasket Failure In Your Caterpillar C15 Acert EngineUltra 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.
Continue reading Ultra Performance Cylinder HeadsProgression of Diesel Engine Pistons (One Piece to Two Piece Pistons)

Continue reading Progression of Diesel Engine Pistons (One Piece to Two Piece Pistons)
The Importance of Replacing Your Injector Hold-Down Bolts
If you need to replace the fuel injectors on your CAT 3406E, C15, or C15 ACERT we know you want the highest quality and best functioning fuel injectors.
Continue reading The Importance of Replacing Your Injector Hold-Down BoltsCaterpillar C15 ACERT Oil Pump Failure
Diesel engines are made up of thousands of moving parts, and keeping them lubricated comes down to having a correctly working oil pump. If the oil pump on your Cat C15 ACERT Diesel engine is not working properly, failure and damage is the only possible outcome.
Continue reading Caterpillar C15 ACERT Oil Pump FailureExperiencing Cylinder Head Problems On A Caterpillar C15 ACERT
The Caterpillar C15 ACERT diesel engine is no doubt one of the most popular heavy-duty machinery engines. Unfortunately, it has been documented as being a little problematic, to say the least, especially when it comes to their cylinder heads.
Continue reading Experiencing Cylinder Head Problems On A Caterpillar C15 ACERTBenefits of the Stage 2 Performance Cylinder Heads for Caterpillar C15
Have you ever thought about what a performance cylinder head could do for your diesel engine?
Continue reading Benefits of the Stage 2 Performance Cylinder Heads for Caterpillar C15Should You Buy A Rebuild Or Remanufactured Head For Your Diesel Engine?
Diesel engines, especially in heavy-duty machinery and trucks, have an extremely hard life. At one point or another, they will need major service, and the heads will have to be replaced.
Continue reading Should You Buy A Rebuild Or Remanufactured Head For Your Diesel Engine?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.






