You’ve noticed that your International diesel engine just isn’t running the way it used to. Or maybe you’re hearing a knocking coming from under the hood.
Continue reading HHP Spotlight: About the International / Navistar DT466E Diesel Engine Inframe Rebuild KitCategory: International/Navistar DT466 Engine: The Mid-Range Powerhouse
Diesel Engine Cylinder Head Buying Guide
When’s the last time you thought about your cylinder head? If you’ve noticed a decrease in fuel economy or your engine has been overheating, you might want to take a look at your head—it could be time to replace it.
Navistar Diesel Engine Serial Numbers
At some point in time, you’ll probably need to know where the engine serial number is on your Navistar engine. Having this number can help ensure that you’re getting the correct diesel engine replacement parts when you shop.
Continue reading Navistar Diesel Engine Serial NumbersDT466E and DT530E Liner O-ring Change
Near the end of 2004, International Navistar made a change in the DT466E and DT530E cylinder liner o-ring configuration.
Continue reading DT466E and DT530E Liner O-ring ChangeDT466E and DT530E O-Ring Change
Through the years, diesel engines have undergone some major changes. Sometimes, the changes happen from model to model, but at other times, updates will be made to existing engines.
Continue reading DT466E and DT530E O-Ring ChangeInternational/Navistar DT466E Inframe Engine Rebuild Kit (1888653C95)
Usually, your International/Navistar diesel engine runs great. But, maybe you’ve recently noticed that it’s just not running the way it used to, or you’ve started to hear a knocking from under the hood.
Continue reading International/Navistar DT466E Inframe Engine Rebuild Kit (1888653C95)How to Find Navistar Diesel Engine Serial Numbers
If you’re looking for parts for your Navistar diesel engine, you’ll probably need to know where to find the Engine Serial Number. Having this number helps ensure that you’re getting the correct diesel engine replacement parts when you shop.
Continue reading How to Find Navistar Diesel Engine Serial NumbersInternational/Navistar DT466E Diesel Engine Inframe Rebuild Kit, Highway and Heavy Parts

The International/Navistar DT466E engine represents the evolution of the legendary DT466 platform, incorporating advanced electronic controls and refined engineering to deliver superior performance in medium-duty applications. This enhanced version of the proven inline six-cylinder design continues the DT466 legacy while offering improved fuel efficiency, lower emissions, and enhanced diagnostic capabilities.
DT466E Engine Advancements
Electronic Control Integration
The “E” designation in DT466E signifies the integration of sophisticated electronic engine management systems. These advanced controls optimize fuel delivery, injection timing, and engine parameters to maximize performance while meeting increasingly stringent emissions standards. This electronic enhancement provides operators with better fuel economy and more consistent power delivery across various operating conditions.
HEUI System Refinements
Building upon the proven HEUI (Hydraulic Electronic Unit Injection) technology, the DT466E HEUI system incorporates enhanced electronic controls for more precise fuel injection management. This refined system delivers improved combustion efficiency, reduced emissions, and enhanced engine responsiveness compared to earlier mechanical injection systems.
Common DT466E Applications
The DT466E’s versatility makes it ideal for diverse commercial applications. From school bus fleets requiring reliable daily operation to emergency vehicles demanding instant response capability, the DT466E delivers consistent performance. Its robust construction and proven reliability also make it popular in agricultural equipment, municipal vehicles, and various industrial applications where dependable mid-range power is essential.
Essential DT466E Engine Parts
Engine Rebuild Kit Solutions
When your DT466E engine begins showing signs of wear, such as unusual knocking sounds, reduced power, or decreased fuel efficiency, a comprehensive rebuild may be necessary. DT466E engine rebuild kits provide all essential components, including pistons, rings, gaskets, and engine bearings, to restore your engine to peak performance standards. These inframe engine rebuild kits are specifically designed for the DT466E’s unique specifications and electronic integration requirements.
HEUI System Components
The sophisticated HEUI system requires specialized maintenance components. DT466E fuel injectors must meet precise specifications to work effectively with the electronic control systems. Similarly, the high-pressure oil pump and related HEUI components require quality replacement parts to maintain optimal system performance.
Performance and Reliability Parts
Regular maintenance of critical components ensures that your DT466E continues to deliver reliable service. From turbochargers and cooling system components to oil pumps and filtration systems, each part plays a vital role in maintaining the engine’s enhanced performance characteristics.
Maintaining DT466E Excellence
The DT466E’s advanced electronic systems require quality components and proper maintenance procedures. Highway and Heavy Parts specializes in premium aftermarket parts that meet or exceed OEM specifications, ensuring your DT466E engine maintains its enhanced performance capabilities while providing cost-effective maintenance solutions for your operation.






