This valve kit addresses low solenoid feed pressure and delayed Forward/Reverse engagement issues attributed to a worn out OE boost valve/sleeve assembly in the reverse brake pressure control valve bore of '04–'08 Jatco/Nissan RE05R05A transmissions. Installing Sonnax reverse brake pressure control valve kit 63741-27K can eliminate the symptoms by re-establishing proper hydraulic fluid pressure control.
Sonnax valve body layouts provide a detailed overview of individual units making it quick and easy to determine what’s available for the specific valve body you’re working on. See all Sonnax valve body layouts.
Vacuum testing at the port(s) indicated fails to hold the recommended minimum in-Hg, or if wear is visually detected.