1. What are the signs that my Cummins ISX engine needs a valve camshaft replacement?

Signs include a sudden engine knock, a drop in engine performance, and reduced horsepower, which could be up to 20% lower than when using a new camshaft.

2. Why is the valve camshaft critical for my Cummins ISX engine?

The valve camshaft controls the timing of the engine’s valve system, directly impacting engine performance, power, and fuel efficiency. A worn camshaft can reduce horsepower and engine efficiency.

3. How does replacing the valve camshaft improve my Cummins ISX engine's performance?

Replacing a worn camshaft restores optimal engine timing, improving horsepower, increasing power output, and boosting overall engine performance.

4. What makes the Cummins ISX valve camshaft from Highway and Heavy Parts a quality choice?

Our camshaft is built to OEM specifications and tolerances, made from billet steel for strength and durability, and thoroughly inspected to ensure a proper fit and finish in your Cummins ISX engine.

5. What warranty comes with the valve camshaft for my Cummins ISX from Highway and Heavy Parts?

The camshaft is backed by a 1-year warranty, providing long-term reliability and peace of mind.

Popular International/Navistar Engines

Turbochargers, Fuel Injectors, Heads, and Other Parts for DT466, DT466E, and MaxxForce 13 Engines

Navistar International has long been a leader in diesel engine technology, producing some of the most durable and reliable engines for medium- and heavy-duty trucks. From the legendary DT466 to the modern MaxxForce series, these engines have powered a wide range of commercial vehicles and industrial applications. Below, we explore some of the most notable Navistar engines and their specifications.

International DT466 Engine

The International DT466 is one of the most iconic and widely used diesel engines in the trucking industry. Known for its durability and ease of maintenance, this inline-six, 7.6L engine has been a staple in medium-duty trucks, buses, and industrial equipment for decades.

Key DT466 Engine Features:

Displacement: 7.6L
Configuration: Inline-6
Horsepower Range: 175-300 HP
Torque Range: 460-860 lb-ft
Fuel System: Mechanical direct injection (early models)
Cooling: Water-cooled
Reliability: Wet-sleeve design for easy rebuilds

The DT466’s robust design allows for multiple overhauls, making it one of the longest-lasting engines in its class. Its wet-sleeve architecture enables mechanics to perform in-frame rebuilds without removing the engine from the vehicle, reducing downtime and maintenance costs.

International DT466E Engine

An evolution of the DT466, the DT466E introduced electronic fuel injection for improved performance and emissions control. This electronically controlled version offered better fuel efficiency and lower emissions while maintaining the legendary durability of its predecessor.

Key DT466E Engine Features:

Electronic Fuel Injection: Improved efficiency and emissions compliance
Horsepower: 195-300 HP
Torque: 520-860 lb-ft
Serviceability: Retained the wet-sleeve design for easy overhauls
Common Applications: School buses, delivery trucks, and vocational vehicles

The DT466E remained a preferred choice for fleets and businesses looking for an engine that combined reliability with modern advancements in fuel management.

International MaxxForce 13 Engine

The MaxxForce 13 was Navistar’s attempt to develop a modern, emissions-compliant heavy-duty engine for Class 8 trucks. Featuring an advanced twin-turbo system and high-pressure common-rail fuel injection, the MaxxForce 13 aimed to provide power and efficiency while meeting stringent EPA regulations.

Key MaxxForce 13 Engine Features:

Displacement: 12.4L
Horsepower Range: 365-475 HP
Torque: 1,250-1,700 lb-ft
Turbocharging: Dual turbocharger system for improved performance
Fuel Injection: High-pressure common-rail
Emissions Technology: Exhaust gas recirculation (EGR) system

While the MaxxForce 13 initially faced challenges due to its emissions technology, it remained a significant engine in Navistar’s lineup, offering solid performance and fuel efficiency for highway applications.

Why International/Navistar Diesel Engines?

International/Navistar engines have built a strong reputation for reliability, serviceability, and performance. From the time-tested DT466 to the high-powered MaxxForce 13, these engines have powered countless trucks and equipment across industries. Whether you need a dependable medium-duty engine or a high-torque heavy-duty solution, International’s lineup offers proven options to meet a wide range of needs.