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Read articles →A one-minute owner walkthrough focused specifically on changing the gear oil in the front axle portal boxes of a Kubota B2920. It covers drain plug location, the need to pull the dipstick to get flow, fluid type (80-90) and quantity (roughly 3.7 quarts), and a note that the portal box gears turn regardless of drive mode. Useful only as a quick procedural reminder for owners doing this exact job.
Posted by Craig's Channel, which appears to be an individual owner documenting maintenance on their own B2920.
There is a 14-mil drain plug on the back side of the right side of the tractor.
About three point seven quarts, with 80-90 gear oil used for the refill.
It comes out very slowly until you pull out the dipstick on the left side of the tractor.
No, the portal box gears are always turning whether the tractor is in four-wheel drive or not.
