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

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Price:
Sale price$27.19
Stock:
In stock

Need help? Call or Text: 562-661-8862

Description

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.

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.

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