OEM RB20/25/26 Valve Cover Seal Washer Set of 20 13268-58S0A

These valve cover seal washers are typically old, dry and hard.  You may find your valve covers leak after replacing your valve cover seals as well as rear plugs - this is the reason why.  The valve cover seal washers must be replaced for a proper seal.  

This is a set of 20 which is enough for one RB Engine

We now have 2 options for the valve cover washers by request.  This listing is for a set of factory oem washers which are suitable for stock turbo applications.  These are made in Japan by Ishino Stone.  For top mount single turbo applications we have a high temp silicone set of washers available here 

If you have an RB20/25 NEO these are not required