If you’re looking for replacement diesel engine parts, you undoubtedly want the best!
Continue reading Exploring PurePower Diesel Engine Fuel InjectorsCategory: International/Navistar DT466 Engine: The Mid-Range Powerhouse
Diesel Engine Fuel Injectors Explained
Were here to talk about fuel injectors today. Well be breaking down our most commonly asked questions.
Continue reading Diesel Engine Fuel Injectors ExplainedHHP is pleased to announce the availability of new International DT466 diesel engine parts
These DT466 engine part additions expand their broad offering to completely cover most model years. The inline six cylinder DT466 is one of the most popular mid-range engines on the market today. Its applications range from agricultural, emergency vehicles, on and off-road equipment and its most popular use in school buses.
Continue reading HHP is pleased to announce the availability of new International DT466 diesel engine partsREMANUFACTURED, Fuel Injector for International/Navistar DT466 (1890055C92)
Is the DT466 engine in your truck idling rough? Misfiring? Showing signs of poor fuel economy? It may be time to replace the fuel injectors in your International/Navistar DT466.
Continue reading REMANUFACTURED, Fuel Injector for International/Navistar DT466 (1890055C92)The 6 Most Common Diesel Engine Oil Pump Failures
Oil pumps are critical to the mechanics of the rest of the diesel engine. Without proper oil circulation, the moving parts of the engine cannot work properly. That’s why oil pump failure is such a big deal. Help prevent failure by understanding what causes it. When your oil pump fails, its probably for one of the following reasons.
Continue reading The 6 Most Common Diesel Engine Oil Pump FailuresInternational / Navistar DT466 Oil Pumps (HP021X)
Is your Navistar/International DT466 showing signs of low oil pressure? Fuel in the oil? Low cranking pressure? Rob from HHP’s Technical Sales is here to discuss what signs your DT466 is showing that would result in a failing HEUI Oil Pump.
Continue reading International / Navistar DT466 Oil Pumps (HP021X)Navistar HEUI High Pressure Oil Pump Failure
We know how frustrating it can be when your equipment fails and you’re facing down time and lost profits. And paying those high OEM dealer prices only makes it worse.
Continue reading Navistar HEUI High Pressure Oil Pump FailureNavistar International DT466/I530 Diesel High Pressure Bosch Oil Pump – Overview and Specs

Navistar / International DT466 Oil Pump, HEUI High Pressure Oil Pump, I530, Remanufactured, Bosch

Bosch High Pressure Diesel Oil Pump: Signs of Failure and the Benefits of a Replacement
Is your Navistar/International DT466/I530 HEUI High Pressure Oil Pump showing signs of reduced power, decreased fuel economy, increased emissions, or rough running? We can help you recognize the signs of failure and inform you on all of the benefits of replacing your oil pump with a Genuine Bosch oil pump from HHP.
Continue reading Bosch High Pressure Diesel Oil Pump: Signs of Failure and the Benefits of a ReplacementThe International/Navistar DT466 engine stands as one of the most versatile and reliable mid-range diesel engines ever produced. This inline six-cylinder powerhouse has earned its reputation through decades of dependable service across diverse applications, from school buses and emergency vehicles to agricultural equipment and commercial trucks.
DT466 Engine Applications and Popularity
The DT466’s widespread adoption stems from its exceptional balance of power, reliability, and serviceability. Found in countless school buses across America, this engine has safely transported millions of students while proving its durability in demanding stop-and-go service. Beyond educational transportation, the DT466 powers emergency vehicles, municipal equipment, and various on-road and off-road applications where consistent performance is non-negotiable.
Understanding the HEUI System
Advanced Hydraulic Electronic Unit Injection
The DT466 HEUI system represents a significant advancement in diesel fuel injection technology. Unlike traditional mechanical injection systems, HEUI (Hydraulic Electronic Unit Injection) uses high-pressure engine oil to actuate the fuel injectors, providing precise fuel delivery control and improved engine performance.
Critical HEUI Components
The DT466 HEUI oil pump serves as the heart of this sophisticated system, generating the high-pressure oil required for proper injector operation. When this pump begins to fail, symptoms include reduced power, decreased fuel economy, increased emissions, and rough engine operation.
Essential DT466 Engine Parts
Fuel System Components
Quality DT466 fuel injectors are crucial for maintaining optimal engine performance. Signs that your injectors may need replacement include rough idling, engine misfiring, and poor fuel economy. The unique HEUI design requires specialized injectors that can handle both fuel and hydraulic oil pressures.
Engine Rebuild Solutions
High-mileage DT466 engines benefit from comprehensive rebuild services. DT466 engine rebuild kits include essential components like pistons, rings, gaskets, and engine bearings, allowing operators to restore their engines to peak performance standards. These inframe engine rebuild kits are particularly valuable for addressing issues like high oil consumption, excessive fuel usage, or lack of power.
Performance Components
DT466 turbochargers play a vital role in engine performance, providing the forced induction necessary for optimal power output. Regular maintenance and timely replacement of turbocharger components ensure that your DT466 continues to deliver the reliable performance your operation depends on.
Maintaining Your DT466 Engine
Proper maintenance of the DT466’s unique HEUI system requires quality components and expert knowledge. Highway and Heavy Parts specializes in genuine Bosch oil pumps and premium aftermarket parts that meet or exceed OEM specifications, ensuring your DT466 engine maintains its legendary reliability while managing operational costs effectively.






