Heavy Duty Truck Parts: New & Rebuilt Transmissions, Differentials & Transfer Cases

We have truck parts for all truck models: Allison, Spicer, Eaton Fuller, ZF, Mack, Rockwell and more.

We ship internationally.

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Our truck part experts will analyze your request and respond via email or phone asap. We have the right commercial truck parts, with competitive pricing, and fast same day shipping.

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Pro Gear and Transmission is your online source for everything medium or heavy-duty truck related. Our multi-faceted shop has parts experts to answer your truck repair questions with the experience you need. Our rebuild diesel technicians have over 100 years of combined diesel repair experience and are ASE Certified for Medium and Heavy-Duty Trucks. Most technicians are also trained and certified by Eaton RoadRanger Academy and are also experts in troubleshooting PTO’s and most heavy-duty truck issues.

We are a powerhouse when it comes to medium and heavy-duty truck parts. We stock and ship most parts the same day, and ship internationally. We pride ourselves on the extensive application knowledge of our parts department, our friendly sales staff, and our multiple warehouses located nationwide and filled with heavy-duty truck parts and accessories (even the hard to find or obsolete items) that you need for your next project or repair – at your fingertips.

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Rebuilt Truck Transmissions

Spicer, Eaton, Fuller, Rockwell, Mack, Dana and ZF Transmissions in stock and ready to ship

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Rebuilt Truck Differentials

Meritor, Navistar, Caterpillar, Spicer, Rockwell, Eaton, Timken, Isuzu, Mack, Oshkosh, Ford, Fabco, Dana, Clark, International, ZF, and Sterling.

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Rebuilt Transfer Cases

Cotta, Fabco, Meritor, Oshkosh, Spicer, Advanced and Mack

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Truck Parts

We have truck parts for all truck models

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WE CARRY ALL MAJOR BRANDS AND HAVE THOUSANDS OF TRUCK PARTS FOR KENWORTH, PETERBILT, MACK AND FREIGHTLINER IN STOCK READY TO SHIP OUT TODAY!

Great Services

Established in 1997, we have been providing quality parts, repair, and service for over two decades.

Highest Standards

Our shipping warehouses are strategically located across the world to ensure fast delivery.

Professional Team

Our service technicians have over 100 years of combined service experience. Give them a call at 877-766-4600.

For over 20 years we have successfully exported world wide. We stock all makes and models of all your new used and rebuilt differentials, parts and kits. Whether we use your carriers or ours, you can rest assured that we will get your product to you on time and in perfect working condition. We export to over 60 countries worldwide and know what it takes to get the job done right the first time. Our goal is for you to be able to complete your job in the least amount of time possible. We strive to become a regular component of your success!

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