Upgrade the factory Nissan RB20/RB25/RB30/CA18DET timing belt backing washer with a hardened replacement designed to reduce the risk of the OEM washer crushing—especially when using upgraded crank bolts. A crushed timing washer can lead to loss of crank bolt pre-tension, timing belt walk/damage, crankshaft keyway damage, and potentially catastrophic engine failure.

Key Features

• OE Reference: Nissan 13022-42L00
• Replacement washer is 4x harder and stronger than OE.
• Square key notch removed to reduce potential stress raisers.
• Same thickness as OEM (does not change crank pulley offset).
• Laser-etched directional marking for correct installation orientation.

Fitment

Suitable for Nissan engines: RB20, RB25, RB30 and CA18DET.

Location: This washer sits on the nose of the crank, between the timing belt sprocket and the oil pump.