Cummins has been producing the ISX engine since it replaced the N14 in 2001. In those years, many improvements have been made to the designs of both the pistons and the cylinder liners. Below are summaries of the updates to the designs of those two parts.
Continue reading Liner & Piston Update for ISX EnginesCategory: Blog – Diesel Engine News & Updates
Cummins ISX Engine Rebuild Kits from HHP
Here at HHP, we’re pretty proud of the rebuild kits we offer. So, we’re going to use this article to brag a little bit about the rebuild kits we have to fit various Cummins ISX engines.
Continue reading Cummins ISX Engine Rebuild Kits from HHPCaterpillar 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.
Continue reading Caterpillar 3406E Engine Specs, Problems, and ReliabilityDetroit Diesel Series 60 Engine Spotlight
Detroit 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 SpotlightValve Train: Function, Components, and Repair Options
The 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 OptionsC15 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.
Continue reading C15 Engine SpotlightThe Difference between OEM and Aftermarket Engine Rebuild Kits
So, 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 KitsHow does a Variable Geometry Turbocharger work?
Variable 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?What Are Fuel Injector Trim Codes?
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?Oil Change Intervals after Diesel Engine Break-In
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-InWhat is a core charge and why do I have to pay it?
Considering 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?Anti-Polishing Rings (APR) Explained
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) Explained
