This is Stage 3 in our Performance Line of cylinder heads. Installed with Inconel exhaust valves, it can withstand extreme temperatures and pressure generated engines. This overview covers failures and diesel part options.
Continue reading Caterpillar C15/3406E Stage 3 Cylinder Head (1835296)
This is Stage 2 in our Performance Line of cylinder heads. Installed with Inconel exhaust valves, it can withstand extreme temperatures and pressure generated engines.
Continue reading Caterpillar C15/3406E Cylinder Heads With Inconel Valves (20R2645)
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. One solution sometimes used was to lay wooden planks ahead of the tractors, but this drastically decreased speed and was expensive to do.
Continue reading Everything You Need To Know About The Caterpillar C15
When it comes to sealing a diesel engine, your head gasket isn’t just another component: it’s one of the most critical sealing surfaces in the entire engine.
And choosing the wrong type? That can mean compression loss, coolant leaks, or even a full teardown.
Two of the most common options are:
They may serve the same purpose – but they behave very differently under real engine conditions.
Continue reading MLS vs. Graphite Head Gaskets: What’s the Real Difference (and Which Should You Use)?
So, you notice your oil pressure is low. Your automatic response might be to have your oil pump looked at, or to replace it altogether.
Continue reading 7 Possible Causes Of Low Oil Pressure In Your Diesel Engine
Caterpillar C15 engines are very popular among our customers. We’ve noticed that over time we’re getting the same questions regarding cylinder head problems in this engine. In this post, we’re covering cylinder head symptoms, why it’s happening, and what solutions we have for you!
Continue reading Caterpillar C15 Cylinder Heads (20R2646)
Over time we’ve noticed similar questions related to common issues with Caterpillar C15 ACERT cylinder heads. In this post we’re covering those symptoms, why it’s happening, and what solutions we have for you!
Continue reading 6 Common Issues with Caterpillar C15 ACERT Cylinder Heads
Today we’re going to go over a little bit about cylinder heads. Before diving head first into the cylinder head market, its important to have an understanding of what you’re working with.
Continue reading How Does a Cylinder Head Work On A Diesel Engine?Is It Camshaft Lobe Wear Or Damage? We all know how important camshafts are to the function of your diesel engine, and when they fail it can spell big trouble. Whether you have a flat tappet or a roller camshaft, you’re at risk for one of the most common causes of camshaft issues: lobe wear or damage.
Continue reading Camshaft Failure Causes
Having problems with your Caterpillar C15? A new engine rebuild kit from Highway and Heavy Parts may be just what you need!
Your Caterpillar C15’s power and reliability start with the core parts deep inside the engine, where compression, cooling, and lubrication all come together. Over time, those internal components – pistons, liners, rings, and bearings – wear down and slowly lose their ability to seal, cool, and support the engine the way they should. Once that happens, you’ll start to see blow-by, oil consumption, fuel dilution, rising temperatures, and a noticeable drop in performance.
The longer those issues are ignored, the faster they snowball into bigger problems like scored liners, damaged pistons, or even a complete engine failure. That’s why a complete engine rebuild kit is so critical for a C15. Replacing everything at once restores the engine’s foundation, brings compression back to spec, and stops small issues from turning into expensive downtime.
Not sure if it’s time for a rebuild? Look for these warning signs:
Waiting too long allows minor wear to cascade into major failures, but acting now can save thousands in repair costs.
We proudly carry the Caterpillar C15 Engine Rebuild Kit (3067460), a complete top‑end kit engineered to meet or exceed OE specifications.
What Sets This Rebuild Kit Apart:
Designed by top OEM and aftermarket specialists, this engine rebuild kit delivers consistent quality and reliability.
A successful rebuild depends on meticulous preparation and assembly. Follow these steps:
Proper execution of each step ensures optimal compression, oil control, and long‑term durability.
Guaranteed for fit and function, HHP parts combine superior quality with unbeatable value, backed by our ASE‑certified technicians and a 2‑year unlimited mileage warranty. Minimize downtime and maximize engine life—order your Caterpillar C15 Engine Rebuild Kit (3067460) now!
Call 844‑304‑7688 or visit highwayandheavyparts.com to place your order today.
From diagnosis through delivery, we’re Highway and Heavy Parts.
Learn about premium Caterpillar C15 engine parts for Class 8 trucks, heavy equipment, and industrial applications at Highway and Heavy Parts. Our inventory includes cylinder heads, camshafts, pistons, turbochargers, and complete engine rebuild kits engineered to meet or exceed OEM standards. Whether you’re maintaining a legacy C15 or performing a full engine rebuild, we offer parts designed for long-lasting performance in demanding diesel environments.
The Caterpillar C15 (pre-ACERT) engine, introduced in the early 2000s, is known for its simplicity and durability. With a 15.2L displacement and horsepower ratings ranging from 435 to 550 HP, it was a workhorse in over-the-road trucks and vocational equipment. Our C15 parts are compatible with popular models across Freightliner, Kenworth, Peterbilt, and Caterpillar construction equipment.
We stock engine blocks, cylinder kits, engine bearings, camshafts, fuel system components, turbochargers, oil pumps, gaskets, and complete C15 engine rebuild kits. Choose from genuine Caterpillar parts and high-quality aftermarket alternatives designed for direct-fit installation.
Use your engine’s serial number (prefixes like 6NZ or MBN) located on the engine data plate. Our technical team can help verify compatibility to ensure you get the right components the first time.
The Caterpillar C15 remains one of the most trusted engines in the diesel world. Maintain its performance with trusted parts from HHP.
