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.
Continue reading Caterpillar 3406E Engine Specs, Problems, and ReliabilityDetroit Diesel was once associated with General Motors, during which time it was called the General Motors Diesel Division. For several years, GM had cornered the diesel engine market. Detroit Diesel developed its engines in the industrial, marine, and railroad markets.
Continue reading Detroit Diesel Series 60 Engine SpotlightThe valve train of any type of engine is a fairly complicated system and can be confusing if you don’t have a lot of experience repairing diesel engines. While this article focuses mainly on diesel engines, many of the points can also apply to other engine types as well.
Continue reading Valve Train: Function, Components, and Repair OptionsIn 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.
Continue reading C15 Engine SpotlightSo, let’s start off admitting that we obviously have a strong preference in the OEM versus aftermarket debate. But our preferences are based on years of actual, technical experience. Our two founders actually worked at an OEM company for years, and now sell aftermarket parts. HHP wouldn’t exist if their experience at that company had proven to them OE was the only way to go.
Continue reading The Difference between OEM and Aftermarket Engine Rebuild KitsVariable geometry is a fancy term for extra moving parts. Unless you fly aircrafts, variable geometry will always refer to certain turbochargers (VGTs, or Variable Geometry Turbochargers). VGTs have turbines with vanes that move depending on the needs of the engine they’re attached to.
Continue reading How does a Variable Geometry Turbocharger work?Fuel injectors are designed to deliver precise amounts of fuel – but no two injectors are perfectly identical.
That’s where fuel injector trim codes come in.
These codes allow the engine control module (ECM) to compensate for slight differences between injectors, ensuring consistent fuel delivery across all cylinders.
Continue reading What Are Fuel Injector Trim Codes?Proper break-in after an engine rebuild is one of the things that we find a lot of our customers don’t know about. Because it’s so little known, we wrote another blog about it, which you can find Click here for the Diesel Engine Break-In Procedure blog. Another thing that most people don’t realize is that break-in isn’t complete after that first high-horsepower session. In reality, an engine is fully broken in when it does not lose any oil, which can take months for even the most active of engines.
Continue reading Oil Change Intervals after Diesel Engine Break-InConsidering how common core charges are in the diesel engine industry, a surprising number of our customers ask us that question every day. If you are also one of those people, we’ve put together this handy guide for something you should probably familiarize yourself with if you’re planning to buy replacement parts.
Continue reading What is a core charge and why do I have to pay it?APR stands for anti-polishing ring. Other terms for anti-polishing rings include carbon scraper ring, piston cleaning ring, and bore polishing ring. Whichever term you use, it refers to a newer development in Cummins ISX engines where a cylinder liner will have an anti-bore at its top that holds a ring insert. You can see the diagram below of the liner and ring profile.
Continue reading Anti-Polishing Rings (APR) ExplainedThe huge company that is Cummins was founded almost a century ago in 1919 by Clessie Cummins. Cummins partnered with J. Irwin Miller, who helped Mr. Cummins grow his business. With Cummins’ diesel knowledge and Miller’s business expertise, the company quickly grew. In the years after World War II, the N-Series heavy duty trucks helped the company become an industry leader, and the company’s first overseas facility was built in Scotland in 1956.
Continue reading Cummins ISX Engine Spotlight
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.
Continue reading Diesel Engine Serial Numbers
