Weller is dedicated to eliminating your downtime. We specialize in new and remanufactured heavy duty truck parts, remanufactured transmissions, differentials, steering gears, and driveshafts. Weller Truck Parts is 100% associate-owned!


We would love to work with you on your next obsolete, discontinued, or late model drive train solution. We specialize in new and remanufactured heavy duty truck parts, remanufactured transmissions, differentials, steering gears, and drive shafts. With our Same Day Shipping service policy, we can help when you face a stock out/obsolete problem, excessive lead times, or unfamiliar drive train product. We want to be your heavy duty truck parts supplier.


Weller Truck Parts and Weller Reman stock an extensive inventory of gearing for both old and very current Fuller, Spicer, Mack, Rockwell, IHC, Allison Automatics, New Process and similar OEMs. If you want aftermarket heavy duty truck parts, we are your source. With over 17,000 rebuilt units in stock and over 800 team members specializing in the drivetrains that keep you or your customers on the road, Weller is ready to work with you on eliminating downtime by providing you remanufactured truck transmissions, differentials, steering gears, and drive shafts.

Transmissions and Transfer Cases

We remanufacture a wide variety of transmissions, including Eaton/Fuller, BorgWarner, New Process, Clark, IHC, TTC Spicer, Isuzu, GMC, for Mack, Noster, ZF, Meritor, and more. We also stock a complete line of Auxiliaries and Transfer Cases.

Automatic Transmissions

We stock On-Highway and Off-Road transmissions and components from Allison Transmission, Clark, Funk, and more! If you needAT, MT, HT, 1k-2k, MD, HD, “B” Series, or other automatic transmissions we are your source!

Automated Manual Transmissions (AMT)

A traditional clutch-actuated manual gearbox with a computer-controlled shift actuator and clutch, automated manual transmissions are also part of Weller’s line remanufactured driveline components for Eaton UltraShift, Volvo I-Shift, Mack mDRIVE, Detroit DT12, ZF AS Tronic

Steering Gear Boxes and Pumps

All units are tested on our state-of-the-art road simulator. We remanufacture these popular makes:
TRW-Ross, Saginaw, Sheppard, Vickers Pumps, ZF, Eaton, Luk, and more! Popular models include TAS65024, TAS65079, M100PHE, M100PHX, 592SAM5, 710ML, 710M, TAS85052, 8016955105, 8016955112


Complete Stock for Quick Exchange
Spicer, Clark, FWD, GMC, International, Industrial/Off Road, Mack/PAI, Dana/Eaton, Terex, Freightliner/Alliance, Meritor/Rockwell, Volvo

Driveshafts & End Yokes

U-Joints, Yokes, & Shafts
Borg Warner, Meritor/Rockwell, Neapco, Rockford, Spicer/Dana

Electronics & Mechatronics

Control modules, automated shifters, and operator controls for Cummins, Fuller, ZF, Allison, Meritor
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