Transmission Parts

-30%
1-3/8" 6 Spline End T1 20"-24" Yellow PTO Drive Shaft for Tractor
CLEARANCE
-39%
22mm Shaft Seal Kit 96525458 for Grundfos CR32 CR64 CR45 CR90 HQQE
CLEARANCE

Transmission Parts

The better your transmission, the more power from your engine actually gets to the road. Every part inside has to work together perfectly. From clutches and valve bodies to gears, we’ve got quality parts you need to repair or upgrade your transmission.

Find Transmission Parts You Need

  • Clutches: Engage and disengage engine power to the gearbox. We offer individual plates, complete assemblies, and kits.
  • Torque Converters: A fluid coupling in automatic transmissions that transfers engine power to the gearbox.
  • Gears, Gear Sets, and Gearboxes: The core components for changing speed and multiplying torque. We supply everything from individual gears to complete gearboxes.
  • Shafts: Transmit rotational force through the drivetrain. Our inventory includes main shafts, PTO shafts, and driveshafts.
  • Axles: Transmit power from the differential to the wheels. We stock a range of durable axle shafts and related parts.
  • Bearings, Bushings, and Seals: Reduce friction, allowing shafts and gears to spin freely. We carry a full range of bearings, plus the bushings and seals that protect them.
  • Valves and Valve Bodies: The hydraulic control center of an automatic transmission, directing fluid to enable gear shifts.
  • Solenoids: Electro-hydraulic valves that control fluid flow to execute precise gear shifts.
  • etc.

Common Transmission Problems

If your machine shows any of these signs, it’s time to check the drivetrain:

  • Slipping Gears: The engine revs but the machine doesn’t move properly. Usually caused by worn clutch discs or hydraulic issues.
  • Rough or Slow Shifts: The machine jerks, hesitates, or makes a clunk when changing gears. Could be bad solenoids, a faulty valve, or low fluid pressure.
  • Strange Noises: Whining, grinding, or humming sounds when turning or changing speed. Often from worn bearings, damaged gears, or a failing planetary set.
  • Fluid Leaks: Red or dark brown puddles under the machine mean a bad seal or gasket. This can starve parts of lubrication and cause damage fast.
  • No Power: Engine runs but the machine won’t move. This might be a broken shaft, clutch, or torque converter failure.

Get the Right Part for Your Machine

Use the search bar at the top of the page to enter your machine's make, model, or part number to get what you need. We carry durable, reliable aftermarket parts compatible with lots of leading brands, including: John Deere, CASE, Caterpillar, Bobcat, Polaris, Toyota, New Holland And many more...

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