Mack Engine Models – Troubleshooting, Maintenance & Diesel Repair Insights

Mack engines are built tough—but every engine needs expert care, accurate diagnostics, and dependable parts to perform at its best. Whether you’re working with the MP7, MP8, or E7, our Mack blog library is your one-stop source for real-world repair guides, maintenance strategies, and high-performance diesel solutions.

From common failures to complete rebuild support, Highway and Heavy Parts brings the knowledge diesel techs, owner-operators, and fleet managers rely on to keep their Mack engines on the road longer.

Fix Common Mack Engine Issues With Confidence

Don’t waste time guessing. Our diesel engine experts break down the most common Mack issues, showing you how to diagnose and fix them with accuracy and speed. Browse posts like:

You’ll learn what to look for, which tests to run, and how to find the right replacement parts—all backed by real shop experience.

Remanufactured Mack Engine Parts You Can Trust

When it’s time to replace components, our blog content links directly to remanufactured Mack parts that meet or exceed OEM specifications. We carry:

Each part is backed by warranty and support from diesel specialists who know what it takes to get the job done right.

Your Mack Diesel Knowledge Hub

We update our Mack engine blog regularly with new content to reflect the latest repair practices, part innovations, and fleet performance strategies. Whether you’re trying to solve an issue or prevent one, you’ll find valuable insights to help you save time and money.

Highway and Heavy Parts – Delivering Confidence in Every Mack Engine Repair.