How do you pick the right diesel engine model? This is a challenging task. You’ll need plenty of information if you’re deciding between the Caterpillar 3406E, C15 ACERT, or C15 engine. And we have as much information as you can get to make an informed decision.
Continue reading Important Differences Between Caterpillar 3406E, C15, and C15 Acert Diesel EnginesCategory: Caterpillar 3406E Engine Parts: Reliable Solutions for a Diesel Icon
About The Caterpillar 3406E
In 1993, Caterpillar began production on the 3406E, the last model engine in the 3406 series. While its predecessors –the A, B, and C– were fully or partially mechanical, the Caterpillar 3406E was the first successful fully electronic motor. The 3406E is usually found in Peterbilt and Freightliner vehicles.
Continue reading About The Caterpillar 3406EAbout the Caterpillar C15 Engine
Steam tractors became the go-to tool for agricultural development in the late 1800s/early 1900s. Although their use was widespread, this machinery wasn’t perfect; they didn’t work everywhere. In California, these immensely heavy tractors kept sinking into the soft earth.
Continue reading About the Caterpillar C15 EngineReplace the Injector Hold-Down Bolts on Your Diesel Injectors
Are you looking to replace the fuel injectors on your CAT 3406E, C15, or C15 ACERT diesel engine? If so, it’s probably fair to assume that you want the best quality, highest functioning injectors you can get. And, if you’re spending money on quality injectors, you want them to work correctly.
Continue reading Replace the Injector Hold-Down Bolts on Your Diesel InjectorsWhat You Should Know About the CAT 3406E/C15 Diesel Engine Turbocharger
If you checked out our earlier post answering turbocharger customer questions, you may have found answers to the reasons why your CAT 3406E/C15 turbocharger is lacking performance. Maybe it’s time to replace that worn out turbo with something new.
Continue reading What You Should Know About the CAT 3406E/C15 Diesel Engine TurbochargerAbout the Cat C15/C15 ACERT/3406E Stage 3 Performance Diesel Engine Cylinder Head
Are you running a Caterpillar C15, C15 ACERT, or 3406E diesel engine? Maybe you’ve taken the time to change some of the components, like an upgraded turbocharger, a marine cam, bigger fuel injectors, or a high performance manifold.
Continue reading About the Cat C15/C15 ACERT/3406E Stage 3 Performance Diesel Engine Cylinder HeadAbout the Cat C15/C15 ACERT/3406E Stage 4 Performance Diesel Engine Cylinder Head
If you’ve spent the time and money upgrading components on your Caterpillar diesel engine, you’re going to want a cylinder head that can handle the increase in horsepower.
Continue reading About the Cat C15/C15 ACERT/3406E Stage 4 Performance Diesel Engine Cylinder HeadAbout the CAT C15/C15 ACERT/3406E Diesel Engine Cylinder Head
Are you looking for a new cylinder head? If so, you’re probably overhauling your engine. Or maybe you’ve got a blown head gasket, or cracks between your exhaust valves. These are all things that lead to cylinder head replacements.
Continue reading About the CAT C15/C15 ACERT/3406E Diesel Engine Cylinder HeadAbout the Cat C15/C15 ACERT/3406E Stage 2 Performance Diesel Engine Cylinder Head
Are you putting an engine together? Maybe you’re looking for an added sense of security when it comes to your cylinder head. Or maybe you’ve got a bigger turbo, larger injectors, or upgraded horsepower.
Continue reading About the Cat C15/C15 ACERT/3406E Stage 2 Performance Diesel Engine Cylinder HeadHighway & Heavy Parts Answers Your Diesel Engine Questions
Here at Highway & Heavy Parts, we take pride in bringing you the best information about your diesel engine. We want to give you the answers you need, no matter what issue you’re facing. That’s why this month we’re focusing on questions from you.
Continue reading Highway & Heavy Parts Answers Your Diesel Engine QuestionsWhy Did My Diesel Engine Valves Break?
Have you recently experienced a valve failure? Are you left wondering what caused that valve to break?
Continue reading Why Did My Diesel Engine Valves Break?What is Inconel Material in Your Diesel Engine?
We get it. You want the best parts made from the best materials for your diesel engine to keep you running for miles and miles.
Continue reading What is Inconel Material in Your Diesel Engine?Highway and Heavy Parts offers a complete line of Caterpillar 3406E engine parts, from turbochargers and camshafts to complete engine rebuild kits and fuel injectors. Built for longevity and easy serviceability, the 3406E engine is a favorite among both owner-operators and fleet managers. Our parts are engineered for high performance and maximum uptime in demanding trucking and equipment applications.
The Caterpillar 3406E was produced from the mid-1990s to the early 2000s, featuring a 14.6L displacement and horsepower ranging from 375 to 550 HP. Known for its mechanical simplicity and legendary durability, it powered everything from on-highway trucks to agricultural and construction machinery.
What 3406E Parts Are Available?
Our inventory includes rebuilt cylinder heads, camshafts, valve train components, turbochargers, oil pumps, fuel injectors, cylinder head gaskets, and complete 3406E engine rebuild kits. Aftermarket options are available for budget and performance needs.
Which Trucks and Machines Use the 3406E?
This engine powered Peterbilt, Kenworth, International, and Freightliner trucks, as well as Caterpillar equipment like loaders, scrapers, and generators. It’s widely used in heavy-haul, mining, and long-haul operations.
Why Trust HHP for Your 3406E Build?
- Quality-tested components from reliable brands
- Fast shipping and technical support
- Complete kits built for long-term reliability
Keep your 3406E running strong with parts designed to extend engine life and restore original power.
FAQs for the Caterpillar 3406E
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Is the 3406E engine still supported with new parts?
Yes, many aftermarket suppliers—including HHP—stock new and remanufactured parts for the 3406E, including full engine rebuild kits. -
What makes the 3406E so reliable?
The 3406E is praised for its mechanical fuel system, fewer electronics, and durable internal components, making it a favorite among owner-operators. -
What are common failure points in the 3406E?
Over time, camshafts, turbochargers, and fuel injectors may wear out. Regular oil analysis and preventive maintenance help avoid costly failures. -
What is the horsepower range for the 3406E?
Factory ratings ranged from 375 to 550 HP, but many are tuned beyond that in performance builds. -
Are rebuild kits available for the 3406E?
Yes, HHP offers complete inframe and out-of-frame rebuild kits tailored to your engine’s serial number.
