FOR THOSE THAT MOVE THE WORLD.
When a unit goes down, every hour costs you. We ship priority drivetrain parts and rebuilds in days — not the 6–12 weeks the OEMs quote.
In-Stock New, Used & Obsolete Drivetrain Products
Since 1995, Heavy Duty Transaxle — known to our customers as HDT or just “Heavy Duty” — has been a trusted source for heavy duty truck axles, heavy duty transmissions, and complete drivetrain solutions for the off-road transportation industry. Whether you need hard-to-find parts or reliable replacements, our team is dedicated to finding exactly what you need.
Our Specialties Include:
- Heavy Duty Truck Axles & Differentials: Drop-in replacements and rebuild parts for Class 8 trucks, vocational trucks, and off-highway equipment.
- Planetary Axles: Durable and reliable for the toughest material handling and off-highway applications.
- Differentials: Precision-engineered for maximum efficiency and durability.
- Transmissions: High-performance options to keep your vehicles running smoothly.
- Brakes: Top-quality braking systems for safety and performance.
- Diagnostics: OE-level diagnostic capability across mixed off-highway fleets. One platform, one vendor, coverage for the brands you actually run.
Heavy Duty Transaxle provides drivetrain solutions for the world’s leading material handling and heavy-duty equipment brands. We specialize in supporting Taylor, Kalmar, Hyster, Konecranes, Ferrari, Hyundai, Toyota, and Sany lift trucks and container handlers, terminal tractors from Kalmar Ottawa, Capacity, and TICO, as well as heavy haul trucks from Kenworth, Western Star, Peterbilt, and many others. Our extensive inventory of axles, differentials, transmissions, and brakes helps keep your fleet moving—whether you operate in ports, steel mills, mining, or construction. When reliability and uptime matter most, Heavy Duty Transaxle delivers proven performance and expert support.
Independently Owned, Supported by OEMs
Since 1995, Heavy Duty Transaxle has been a trusted name in the off-highway and heavy-haul industry, delivering top-quality drivetrain parts and solutions. As North America’s largest independent distributor of Axletech and Meritor off-highway components, we offer unmatched inventory and industry expertise. We also sell and service Kessler, Sisu (Marmon Herrington), Eaton/Dana/Spicer, and Fuller drivetrain components, as well as older equipment, such as Clark and Rockwell. No matter the application, you can rely on us to keep your equipment running smoothly.
Recent Projects
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- September 27, 2025
- Customer Stories
Keeping Weirton’s Fire Department Rolling
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- September 2, 2025
- Events
Webinar: Tackling Tariffs and Downtime
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- July 31, 2025
- Lift Trucks
Unlocking Savings on Forklift Drivetrain Parts: Skip the OEM and Go Straight to the Source
White-Glove Service at Our Rebuild Center
When you bring parts to our Rebuild Center for service, you can count on getting a thoroughly tested product back. We have over 60 years of experience in the industry, which means the job will get done right.
Unit Down? We move first.
A truck on jacks isn’t waiting six weeks. When you call us with a unit down, we pull from the largest independent off-highway drivetrain inventory in North America, route it to priority rebuild, and put it on a truck within days. No “no longer available.” No gouging. No surprises.
- 30 years of obsolete-part sourcing — we find what the OEM’s no longer build
- Same-week rebuilds in our shop — tested before it ships
- Fast Track inventory pre-staged for your fleet — your parts, already on the deck
Heavy Duty Transaxle Stocks:
- AxleTech axle parts
- AxleTech differential parts
- AxleTech wet brakes
- Kessler axle parts
- Meritor axle parts
- Meritor differential parts
- Rockwell differential parts
- Rockwell axle parts
- Rockwell planetary parts
- Clark axle parts
- Clark differential parts
- Clark planetary parts
- SISU differential parts
- SISU axle parts
- Taylor axle parts
- Taylor differential parts
WHAT OUR CUSTOMERS SAY
“Daniel was very easy to work with. We basically went off of a picture for a kingpin set. He did the extra effort to get the product in hand and go off of dimensions. Great customer service.“
“Steve and the whole crew – from the front office to shipping – went above and beyond to make us feel our project was the most important item on their desk at the time. Very impressive parts inventory!“
⭐️⭐️⭐️⭐️⭐️ Read our Google reviews