Trans Case Seal - Rear, Right - Honda Acty Truck HA3, HA4 Models - 1990-1999

This transmission case seal fits the Honda Acty Truck HA3, HA4 (1990-1999). It seals the transmission case where a shaft exits so gear oil does not leak. @media (max-width:767px){.og-shiph{display:block!important;position:relative;padding-left:16px}.og-shiph>span{position:absolute;left:0;top:6px}} In Stock - ships from our California (USA) warehouse Fast, reliable delivery - no overseas backorder wait. Vehicle Fitment & Compatibility Confirm your chassis code against the table below before ordering. Honda Acty Truck HA3, HA4 (1990-1999) - fitment Make Honda Model Acty Truck Chassis Codes HA3, HA4 Years 1990-1999 Position rear Side driver side (right side on these RHD trucks) Part Type transmission case seal 100% Fitment Guarantee Not sure about fit? Add your chassis/VIN number at checkout and we confirm it before we ship. If a part does not fit your Acty, we exchange it or refund you in full. Reasons to choose this transmission case seal Gear oil weeping from the transmission case A hardened or lipped old seal A drip that shows after the truck sits You are servicing the driveline Features & Function Seals a transmission case shaft Correct size for the Acty transmission Stops gear-oil leaks Installation Specifications Difficulty: Moderate. Estimated time: about 1 to 1.5 hours. Required tools: A seal puller, a seal driver, and a drain pan. Oiwa Garage Tech Note "This is the driver-side rear transmission case seal. Match the exact position - rear left or right - and drive the new seal in square so the lip does not tear. Top up the gear oil after and check the level." Frequently Asked Questions Do I need to drain the gear oil? Expect to lose some gear oil when the shaft comes out; top it up to level after fitting the seal. Why did my old seal leak? Age hardens the seal lip and the shaft can wear a groove; drive the new seal in square and check the shaft surface. How do I know the case seal is leaking? Look for gear oil weeping from the transmission case at the shaft and a drip that shows after the truck sits. Clean it and drive - fresh oil returning at the seal confirms it. Fitment verified by the Kei truck specialists at Oiwa Garage · Listing updated June 2026.