The trunnion is the hub that mounts the washer's inner tub to the drive shaft. Replacing a worn hub restores a solid, centered connection so the basket spins smoothly without wobble, slip, or grinding. What it does:
- Secures and centers the spin basket on the drive shaft for balanced rotation
- Transfers drive torque to the inner tub during spin
- Helps maintain basket alignment to reduce vibration
- Typical symptoms of failure: loose/wobbly tub, scraping or grinding noises, poor or no spin, frequent out-of-balance events
What's included:
Install notes:
- Disconnect power and water before service; wear gloves and eye protection
- Access the hub by removing top/access parts, then the agitator/wash plate and inner-tub fasteners
- Clean the shaft and mating surfaces; seat the new trunnion fully and tighten fasteners evenly in a crisscross pattern
- Inspect related parts (tub seal, bolts, bearing) while open and replace if worn; run a short test cycle to ensure smooth spin
Do-It-Yourself Stories from Customers like You
Leaking washer tub Hugh S. • Miami , FL • June 25, 2016
The seal at the bottom of the tub had started to fail. On large loads water would leak so I ordered a new one rubber seal. Getting the trunnion off the transmission shaft was hard as it was calcified and corroded. I used a wire brush to get some of it off and then used a lot of WD-40. The bolt holding the trunnion plate on sheared off when I tried to remove it on one side and the other came out ok (the bolt hole through the trunnion is not threaded so it should slide out once the plate is off...
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