Are you running a Caterpillar 3512 diesel engine? Ever wonder what makes it different from other diesel engines?
Continue reading What Makes The Caterpillar 3512 A Great Engine?Category: Caterpillar Engine Parts & Heavy-Duty Components
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)The Importance Of Programming Your ECM
At some point in the life of your Caterpillar engine, you’ll likely run into some problems with the fuel injectors.
Continue reading The Importance Of Programming Your ECMProgramming Fuel Injectors Explained, Caterpillar Fuel Injector Trim Codes, 3406e & C15

The Beginner’s Guide to Caterpillar Diesel Piston Crown, Caterpillar C15 & 3406E Diesel Engines

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 EnginesBad Fuel Injector Seat, Bad Seal Symptoms, O Ring Leak, Diesel Fuel in Oil, Caterpillar Injectors

Caterpillar 3406E Fuel Injector, Remanufactured (10R8501)
Issues like missing at idle, smelling raw fuel from the stacks, and poor fuel economy are likely due to poor quality fuel injectors. Stop wasting your time and money on set after set, and get your next set of injectors from the certified diesel fuel system specialists!
Continue reading Caterpillar 3406E Fuel Injector, Remanufactured (10R8501)The Flow Matched Caterpillar 3406e Fuel Injector You’ve Been Waiting For!!!

Continue reading The Flow Matched Caterpillar 3406e Fuel Injector You’ve Been Waiting For!!!
Are OEM Rebuild Kits Worth It?
What are the key differences between OEM and aftermarket? Is one better than the other? These questions and many more will be answered in today’s post.
Continue reading Are OEM Rebuild Kits Worth It?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.
Continue reading Head Gasket Failure In Your Caterpillar C15 Acert EnginePoor Injector Seating
Like most diesel engines, the fuel injectors on Caterpillar engines aren’t immune to failure.
Continue reading Poor Injector SeatingPremium Quality Parts for Your Caterpillar Equipment
Highway and Heavy Parts is your trusted source for over 250,000 replacement diesel engine parts, including a comprehensive selection of Caterpillar engine components. Whether you’re maintaining fleet vehicles or heavy equipment, we carry the parts you need to keep your Caterpillar engines running at peak performance. This, combined with our ASE Certified service team, makes us industry experts and qualified to write about everything Caterpillar-related.
On this page, you will find blogs that discuss common Caterpillar issues, diesel engine part highlights, and how-tos.
Complete Caterpillar Parts Inventory
Engine Components & Service Parts
Our extensive Caterpillar inventory includes essential engine components such as engine blocks, pistons, fuel injectors, and turbochargers. From routine maintenance items to major engine rebuild components, we stock everything required for C15, C15 ACERT, 3406E, and other popular Caterpillar engine models.
Quality You Can Trust
At Highway and Heavy Parts, you’ll get parts that have been manufactured in an ISO 9001:2015 certified facility, ensuring quality and consistency for your Caterpillar equipment. Our commitment to quality ensures you receive parts engineered for durability and long-lasting performance.
Why Choose Highway and Heavy Parts for Caterpillar Components?
Fast, Reliable Service
Order by 2PM EST, and in-stock items will ship the same day (M–F), ensuring minimal downtime for your equipment.
We understand the importance of keeping your fleet operational and ready for work.
Expert Knowledge & Support
Highway and Heavy Parts, LLC is owned and operated by diesel engine experts.
We know the importance of keeping a delivery fleet on the road. Our team combines decades of experience with comprehensive product knowledge to help you find the right parts for your specific application.
Comprehensive Parts Selection
You can quickly and easily find the precise part you need with our large range, saving you time and effort. From gaskets and seals to major engine components, our inventory covers the full spectrum of Caterpillar parts needs.
Caterpillar’s Legacy in Heavy-Duty Applications
While Caterpillar has a long and storied history of producing top-notch diesel engines and was known for construction and mining equipment, they also produced engines for on-highway applications. Though Caterpillar has discontinued their truck engine production, existing equipment still requires quality replacement parts and ongoing maintenance support.
Browse our complete selection of Caterpillar parts today and experience the Highway and Heavy Parts difference – where quality meets reliability for all your heavy-duty diesel engine needs.






