Other Caterpillar Engine Parts: Support for Legacy and Specialty Caterpillar Platforms Archives

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Posted on June 26, 2025May 13, 2026 by David Ley

Caterpillar C12 Camshaft Problems, Symptoms, and Replacement

If your Caterpillar C12 is losing power, running rough, or showing signs of valve train issues, the camshaft may be part of the problem. A worn camshaft can affect valve timing, engine efficiency, fuel economy, and overall performance. Left too long, what starts as a drivability issue can turn into a much larger repair.

Because the camshaft plays such a major role in how the engine breathes and performs, wear in this area should never be ignored. If you are already narrowing down the repair, our Caterpillar C12 Camshaft is a good place to start, and you can also browse more Caterpillar Engine Parts if the repair involves other related components.

Posted on June 14, 2025April 30, 2026 by David Ley

Caterpillar C10 and C12 Cylinder Head Failure: Cracking, Valve Seat Wear, and When Replacement Is Required

The cylinder head on a Caterpillar C10 or C12 isn’t just a casting – it’s where combustion, airflow, and cooling all come together.

And when it fails, it usually doesn’t fail quietly.

Cracked heads, worn valve seats, and injector cup issues are some of the most common – and most expensive – problems we see on these engines. If you’re already chasing coolant loss, misfires, or compression issues, there’s a good chance the cylinder head is involved.

Posted on February 5, 2025May 13, 2026 by David Ley

Caterpillar 3406B, 3406C Engine Rebuild Kit: What It Fixes and Why It Matters

The Caterpillar 3406B and 3406C are known for durability.

But like any diesel engine, they don’t last forever without internal wear.

Over time, compression drops, oil consumption increases, and performance starts to decline.

When that happens, a complete solution like a Caterpillar 3406B, 3406C engine rebuild kit becomes necessary.

Posted on February 5, 2025April 30, 2026 by David Ley

Caterpillar C12 Inframe Rebuild Kit: What It Includes, When You Need It, and How It Restores Performance

If your Caterpillar C12 is losing power, burning oil, or showing signs of internal wear, you may be getting close to a rebuild.

And when that time comes, an inframe rebuild kit is one of the most efficient ways to restore engine performance without removing the entire engine.

But knowing when to rebuild – and what’s actually included – makes all the difference.

Posted on September 15, 2023 by David Ley

HHP Spotlight: How to Rebuild a Caterpillar C2.2 T/A Diesel Engine

Are you working on your Caterpillar C2.2 T/A? Does it need a complete rebuild? (If you’re not sure whether or not your engine might be need to be rebuilt, we’ve got some signs to watch out for!)

Posted on September 15, 2023 by David Ley

Exploring PurePower Diesel Engine Fuel Injectors

If you’re looking for replacement diesel engine parts, you undoubtedly want the best!

Posted on September 15, 2023February 27, 2026 by David Ley

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.

Posted on September 15, 2023April 28, 2026 by David Ley

Why Diesel Repair Shops Lose Time and Money on Parts (And How to Fix It)

For most diesel repair shops and fleet operations, the part itself isn’t the problem.

👉 It’s everything that happens before and after the part arrives.

Delays, miscommunication, pricing inconsistencies, and slow returns all add up to:

Lost time
Lost revenue
Frustrated customers

And in many cases, those issues repeat themselves on every job. In most cases, the delay in a repair job isn’t caused by the failure: it’s caused by the process around fixing it.

Posted on September 15, 2023 by David Ley

Highway and Heavy Parts has expanded its coverage for all Caterpillar C12 engine applications

Highway and Heavy Parts has expanded its coverage for all Caterpillar C12 engine applications.

Posted on September 15, 2023 by David Ley

Caterpillar C12 Exhaust Stud Kit

Highway and Heavy Parts has released a new C12 Exhaust Manifold Stud Kit! This high-quality C12 exhaust manifold stud kit (which also fits standard C13 exhaust manifolds) is designed to lower repair costs and simplify the parts ordering process. The C12 exhaust manifold stud kit accomplishes these goals by using OEM-grade or better materials at competitive costs. The C12 exhaust manifold stud kit combines multiple part numbers into one simple part number. This one-part number helps simplify the ordering process and reduces the number of on-hand inventory SKUs.

Posted on September 14, 2021 by David Ley

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.

Posted on July 19, 2021 by David Ley

How to Rebuild a Caterpillar C2.2 T/A Diesel Engine

Is it time for your Caterpillar C2.2 T/A to get a complete rebuild? (Check out our post on signs your engine needs a rebuild if you’re not sure!)

Looking for parts for Caterpillar engines beyond the C15, 3406E, or C13? Highway and Heavy Parts supports a wide range of legacy and specialty Caterpillar engines with hard-to-find and service-critical components. From smaller C7 engines to larger C18 powerplants, we provide engine parts for construction, industrial, and power generation use cases.

We cover Caterpillar engines such as the C7, C9, C18, 3126, 3116, and more. These engines appear in everything from vocational trucks to marine vessels and stationary equipment.

What Parts Do You Carry?

You’ll find fuel injector cups, turbochargers, cylinder heads, piston kits, and inframe engine rebuild kits—plus gaskets, sensors, and fuel system components—available for less common Caterpillar engines. Our inventory is made up of aftermarket parts that meet or exceed OEM standards. This means if there are known issues with any Caterpillar parts, our aftermarket replacement parts are engineered to fix those issues.

What If I Don’t See My Engine Listed?

Contact our technical team. We can source many parts not listed online and help verify compatibility using your engine serial number.

Why Choose HHP for Rare Caterpillar Engine Support?

Access to Legacy Components
Compatibility Verification by Engine Experts
Fast Shipping, Even for Hard-to-Source Parts

When your equipment runs on a specialized Caterpillar engine, we’re here with the parts and expertise you need.

FAQs for the Caterpillar Diesel Engine

What Caterpillar engines are included in this category?
This includes the C7, C9, C18, 3126, 3116, and other legacy or specialty Caterpillar engines.
Can I get parts even if my engine isn’t listed?
Yes. Our technical support team can source parts for many Caterpillar engines not listed online—just provide your engine serial number.
Are inframe engine rebuild kits available for Caterpillar C7 and C9 engines?
Yes, we stock complete engine rebuild kits for mid-range engines like the C7 and C9, including turbochargers, pistons, and gaskets.
Are these parts suitable for off-highway equipment too?
Absolutely. Many of these Caterpillar engines are used in construction, agricultural, and stationary power equipment.
How can I verify part compatibility for older engines?
Use your engine serial number or consult our diesel technicians to match parts accurately to your application.