In Jatco/Nissan RE5R05A units, pilot valve "A" feeds the line pressure modulating solenoid, and the TCC solenoid. Pilot valve "B" feeds the following solenoids: direct and input clutch, front brake band, low coast brake and high and low/Reverse. Various shift complaints, lockup apply and line pressure problems can occur depending upon which bore is worn. Sonnax "A" or "B" pilot valve kit 63741-13K allows the valve body casting to be restored. With the improved materials and valve support, the service life can be extended beyond that of the OE casting.

Hardcoat anodized aluminum valve combats premature wear
Annular grooves have been added to the valve for better centering in the bore
The highly wear-resistant Sonnax sleeve provides over 50% more support than the OE casting
New calibrated springs are included for restoring OE hydrualic pressure for either the "A" or "B" pilot valve
In Jatco/Nissan RE5R05A units, pilot valve "A" feeds the line pressure modulating solenoid, and the TCC solenoid. Pilot valve "B" feeds the following solenoids: direct and input clutch, front brake band, low coast brake and high and low/Reverse. Various shift complaints, lockup apply and line pressure problems can occur depending upon which bore is worn. Sonnax "A" or "B" pilot valve kit 63741-13K allows the valve body casting to be restored. With the improved materials and valve support, the service life can be extended beyond that of the OE casting.

Hardcoat anodized aluminum valve combats premature wear
Annular grooves have been added to the valve for better centering in the bore
The highly wear-resistant Sonnax sleeve provides over 50% more support than the OE casting
New calibrated springs are included for restoring OE hydrualic pressure for either the "A" or "B" pilot valve