International/Navistar Engine Models – Maintenance, Repair & Rebuild Resources

International/Navistar diesel engines are known for their durability and power across a wide range of heavy-duty applications. But when issues arise—from EGR system problems to fuel injector failure—you need fast, accurate solutions and dependable parts. That’s where the International/Navistar blog library from Highway and Heavy Parts comes in.

Whether you’re managing a fleet or turning wrenches in the shop, our blog delivers the insights you need to maximize uptime, minimize downtime, and get the most from your engine.

Troubleshooting & Maintenance for MaxxForce, DT466 & More

Our diesel experts break down the most common—and most frustrating—issues that come with International/Navistar engines. Learn how to spot early warning signs and take action before small issues become big problems. Browse posts on:

From DPF clogs to crankcase pressure concerns, our blog is designed to help you fix it right the first time.

Quality Replacement Parts for International/Navistar Engines

Looking for the right parts? Every blog links directly to high-performance, remanufactured International/Navistar parts built to OEM specs or better. Get trusted solutions for:

We stand behind every part with expert support and industry-leading warranties, so you can turn wrenches with confidence.

Your Source for International/Navistar Diesel Knowledge

Our content is created by real diesel pros with hands-on experience and a passion for performance. We update our blog regularly to reflect the latest diesel innovations, engine issues, and repair strategies.

Explore by engine model, search by symptom, or scroll through our latest updates to get the knowledge and confidence you need—only at Highway and Heavy Parts.