Kubota — Transmission Fluid Change
Maintenance · Hurth HBW Transmission
From a Kubota service manual covering: Hurth HBW 100, Hurth HBW 125, Hurth HBW 150, Hurth HBW 250, Hurth HBW 35, Hurth HBW 50, M-25XPB, M-35B, M-40B. Check it applies to your exact model before use.
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Before you start
- Never pull out dipstick while engine is running; hot fluid will splash.
Procedure
- Push suction pump hose down through dipstick hole to bottom and suck out fluid.
- If space allows, remove drain plug from bottom and allow fluid to drain into container.
- Reinstall plug with its sealing washer.
- Wipe down transmission and properly dispose of used fluid.
- After running engine, shut down and recheck fluid level.
Tools required
- suction pump Amazon
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
Specs & values
- Drain plug torque: 20 - 25 ft-lbs
- Fluid: ATF type A or Dextron II or III
Source: Kubota service manual. Steps and values are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.