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Heavy Duty Pros Aftermarket Parts
High Quality Aftermarket Parts

Superior Quality Parts

Heavy Duty Pros parts meet and exceed the OEM quality specifications.

Fast Shipping Aftermarket Parts

Fast Shipping

We ship from warehouses across the US to ensure the quickest delivery.

Customer Service Aftermarket Parts

Expert Technical Advice

Industry repair technicians are standing by to provide expert advice for your repair.

Affordable Aftermarket Parts

Competitive Savings

We offer competitive online pricing for significant savings.


We have over 100 years of engine building experience, and are dedicated to getting your equipment fixed properly on the first attempt. From weekend maintenance to full-blown engine swaps, we’ll get you set up with the best products to get the job done right. Not only are we confident in our enormous inventory of products, but also of our highly competitive prices and fully trained technical sales staff.

HDP carries components for all of today’s popular makes and models, including Caterpillar, Cummins, Detroit Diesel, John Deere, Mack, Mitsubishi, International Navistar, Perkins and many more.

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