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Chromoly R-series Thrust Washer Kit

SKU MCTM-431Category


Out of stock

Out of stock

Out of stock

UPDATE: New Updated design now with increased cross-section & surface areas!

One limitation of the R-series transmission is it’s first gear thrust washer. The factory thrust washer fails under heavy loading due to a narrow cross-section with a square lock-pin keyway. Marlin Crawler has developed a new thrust washer that features a larger cross-section with a rounded lock-pin keyway. To top it off, it’s made from heat treated Chromoly steel. New hardened pin included.

We recommend this thrust washer for those who are pushing 300+ ft-lbs of torque through their R-series transmission.

Applications include R150, R150F, R151, R151F, R154, and other R-series transmissions.

Here are known issues with the stock Toyota thrust washer.


Stock square lock-pin keyway

Stock stress & fracture location

Common stock failure

Gaulding of softer stock material


Weight 0.152 lbs
Dimensions 2.25 × 2.25 × 0.25 in
Make Model Year Notes
Toyota 4Runner 1996 - 2002
Toyota Hilux 1984 - 1988
Toyota Hilux 1989 - 1995
Toyota Supra 1986 - 1993
Toyota T100 1993 - 1994
Toyota T100 1995 - 1998
Toyota Tacoma 1995 - 2004

Proposition 65 Warning for California Consumers

WARNING: Products we sell can expose you to chemicals which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to

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