Transfer case fluid change?

2018 TOYOTA 4RUNNER
187,000 MILES • 6 CYL • 4WD • AUTOMATIC
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ASHLIE_LINCOLN
  • MEMBER
  • 1 POST
What size washer to replace with? The Amazon link leads to a set with all sizes.
Mar 6, 2026 at 3:14 PM
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STRAILER
  • AUTOMOTIVE REPAIR CONTRIBUTOR
  • 54,178 POSTS
Hello, yes that is for the kit, here is the size for the washer as requested.

Toyota Part Number: 90430-18008

Dimensions
Inner Diameter: -18 mm
Outer Diameter: - 24 mm
Material: Aluminum crush washer

Here is the video to help you change out he fluid as well.

https://www.youtube.com/watch?v=w2HFLkJ_QtM

Use 2CarPros anytime, we are here to help. Please tell a friend. Ken

Mar 7, 2026 at 12:30 PM
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