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HHP Buying Guide: Camshafts

Do you want good engine power? Great fuel economy?

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Caterpillar Diesel Engine Serial Numbers

If you’re shopping for parts for your Caterpillar diesel engine, then you’re going to want to make sure that you’re getting the right ones the first time. To help us get you exactly what you need, you need to have your engine serial number handy.

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Caterpillar 3406E Engine Specs, Problems, and Reliability

The Caterpillar 3406E is one of the most recognized diesel engines in the heavy-duty trucking industry.

Known for its durability, rebuildability, and strong performance, it remains a popular engine even years after production ended.

However, like any diesel platform, long-term reliability depends on proper maintenance, correct diagnostics, and quality components.

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C15 Engine Spotlight

In the late 1800s and early 1900s, steam tractors were the primary method of agricultural development. But out in California, they had a problem: the incredibly heavy tractors kept sinking into the soft earth.

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What Are Fuel Injector Trim Codes?

We’ve talked about trim codes a few times, but maybe you’re still wondering exactly what they’re for. In this post, we’re taking you through what trim codes are and what they do for your engine.

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Diesel Engine Serial Numbers

Have you ever thought much about your ESN or why you might need to know it? Diesel engine serial numbers are vital to ensuring you’re getting the right fit for your engine. 

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Reusing Pistons to Save Money: The Benefits and Drawbacks

Rebuilding an engine on a Class 8 truck is a costly procedure. Depending on how extensive the repairs are, the parts alone can range from fifteen hundred to fifteen thousand dollars. One option for reducing the cost of an engine overhaul rebuild is to reuse the pistons. The pistons are typically the single most expensive part in a rebuild kit. Taking them out can make the kit affordable for nearly everyone’s budget. 

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Caterpillar C15 3406E Spacer Plate

This spacer plate, resembling a large gasket, fits between the engine block and the head on Caterpillar’s diesel engines. This product is an update from the aluminum spacer plate that was originally provided in these engines.

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Brand New Caterpillar Cylinder Heads

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.

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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.

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3406E / 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? 

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Premium 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.