detroit dd15 diesel engine

Diesel Engine Parts

Highway and Heavy Parts, LLC is owned and operated by diesel engine experts. We know the importance of keeping a delivery fleet on the road and that every hour a truck is down it impacts the bottom line. That’s why HHP takes pride in the quality of diesel engine parts and services, and the collective knowledge of the HHP sales staff. With HHP as the one-stop shop, great prices and fast delivery for diesel engine parts are available online. Whether you drive a semi-truck across the country, operate farm agricultural equipment, or maintain large construction equipment, HHP supplies diesel engine parts to keep diesel vehicles and equipment running.

Contact an ASE Certified Parts Technician today at 844.215.3406!

High-Quality Diesel Engine Parts, Backed by Experts You Can Trust

Superior Service & Expert Knowledge

At Highway and Heavy Parts, our team of ASE Certified Representatives and highly skilled sales staff have decades of hands-on diesel engine experience. Whether you’re working on a Cummins, Caterpillar, Detroit Diesel, Mack, Volvo, or International/Navistar, our experts ensure you get the right diesel engine part the first time. We back every purchase with personal service, technical guidance, and real-world expertise.


Trusted by Professionals Nationwide

Highway and Heavy Parts is the go-to choice for diesel fleets, municipalities, large truck and equipment repair shops, and independent operators. We’ve delivered thousands of orders across industries, including:

  • Trucking & Transportation
  • Construction & Heavy Equipment
  • Agriculture & Farming
  • Municipal & Emergency Services
  • Marine Applications

Our Experience

Since 2010, Highway and Heavy Parts has been supplying high-quality diesel engine parts, building a reputation for reliability, technical expertise, and customer-first service. Our ASE Certified experts aren’t just salespeople—they’re diesel engine specialists who have worked in the shop, on the road, and in the field.

We carry a complete range of parts for Cummins, Caterpillar, Detroit Diesel, Mack, Volvo, and International/Navistar, including: Engine Rebuild Kits, Fuel Injectors, Turbochargers, Crankshafts, Gasket Sets, Cylinder Heads, and more.


Learn from the Experts

Stay ahead of breakdowns and costly repairs with our free technical resources:

  • Installation Guides for major diesel engine components
  • Troubleshooting Tips for common engine issues
  • Maintenance Schedules to maximize uptime

Visit the Knowledge Base (https://highwayandheavyparts.com/hhps-blog-library/)


Your Partner in Diesel Engine Performance

From your first call to final delivery, we’re committed to keeping you moving. With fast shipping, easy returns, and the best warranty in the industry, Highway and Heavy Parts is your trusted source for diesel engine parts and expert support. (https://highwayandheavyparts.com/shop/)