The Weller Advantage

  • 100% disassembled, cleaned and inspected
  • All new bearings, synchronizers, gaskets, seals, fittings and hoses
  • Meet or exceed the OEM specifications
  • 100% dyno tested with the latest electronics and equipment
  • All new air lines, fittings, hoses and clamps installed
  • Full complement of reman electronics available
  • Industry leading tech support and testing

Automated Manual Transmissions

Quality Products backed by The Weller Way


Every Automated Manual Transmission is 100% disassembled by skilled technicians. The Main Gearbox goes though the same processes as our Manual Transmission rebuilds. The Mechatronic assemblies are also fully disassembled and each part is inspected, tested, and remanufactured or replaced. All reclaimed parts go through a final inspection before being sent off for assembly.


Our Automated Manual Transmissions are remanufactured with all new bearings, gaskets, seals, and synchronizers, as well as all new air lines, fittings, and hoses. Only components that pass the highest standards for reuse are reclaimed.  Mechatronic and electronic components are remanufactured and tested in our industry leading Electronics Reman Department.


All our transmissions are remanufactured to meet or exceed OEM specifications.  The Shift Assemblies, air systems, seals, threads, shift locks, splines, and bearings are all tested and everything is inspected, right down to individual bolt torque.  Our technicians also perform air system tests with a leak down check. Each unit is run on our dynomometer under load to simulate real world operating conditions.

Shop our extensive inventory now!

We've got you covered.

Quality Remanufactured Products by WELLER for the Following Applications

ZF AS-Tronic® • Meritor Freedomline® • Volvo I-Shift® • Mack M Drive® • Eaton/Fuller • Detroit DT 12


Non-Intarder Models


Intarder Models


Unit Overviews PowerPoint Size DT12 Website

Replacement Components for Trucks with Volvo I-Shift / Mack mDRIVE

OE First Fit Clutch Cover and Disc for Volvo MD11 and MD13 Engines

Part Number: 3400700618

Industry Part Numbers: 20806454 + 21615194 or
21459173 + 21844678


Control Housing
Quality Remanufactured Products by WELLER

Industry Part Numbers: 22780686


Clutch Actuator for Volvo MD11, 13, and 16 Engines
Quality Remanufactured Products by WELLER

Part Number: 21580956, 21934653

Industry Part Numbers: 22809232, 22429963, or


Solenoid Valve

Industry Part Numbers: 22327069

More Reasons to Choose Weller Truck Parts

We love being part of your community. WELLER has local sales and support agents that know the product and, just as important, our customer. We offer support before the sale and will stay with you after the sale to ensure your satisfaction. When you call the Weller store nearest you, you are speaking to a sales or support agent in your area. He or she knows the area in which you or your customer are driving their truck. They know the weather, they know the terrain, and they know you can’t afford to have a truck down. WELLER’s local agents are on your side and will do everything they can to get you or your customer back on the road as quickly as possible.
We’ll get your product to you as soon as we can via our fleet of delivery vehicles. Our goal is always your complete satisfaction with our product as well as our service. Part of reaching that goal is fast local delivery. In addition, we will pick up the core at no charge to you.

There’s no need for you or your customer to have money sitting on a shelf as an unused part. Our Unit Down Service allows you to focus on your business; WELLER will focus on stocking the product you need and getting it to you quickly. WELLER can get our product to you or your repair facility in less time than any other remanufacturer in the country. Our goal is less down time for you – Same day/Next day. With 34 locations to serve you across the United States, WELLER can be your parts warehouse.

We’ve built our reputation on Service & Quality. WELLER seeks to remanufacture every part of your driveline perfectly. We do, however, live in an imperfect world. If you do have a problem with one of our parts we absolutely stand behind our product and will work with you to find a resolution. What’s more, our technical support is available to customers and non-customers alike. We understand the challenge of accurately diagnosing a failure and the cost involved.  After all, the longer you are down the more you lose money. For these reasons, WELLER offers an accurate technical diagnosis on all product lines regardless of the place of purchase. If they won’t take care of you, WELLER will.
WELLER has the largest Inventory in North America and includes all makes and models, not just the most common movers.
Our extensive distribution, large inventory, local sales and support, delivery and pickup, and technical support makes doing business with WELLER easy.
We ship 99% of our sales same day. As always, our goal is less down time for you, so shipping same day gets you or your customer back on the road sooner. It’s just another way that WELLER strives to exceed your expectations.

Attention California Residents: WARNING: Cancer and Reproductive Harm –