SonnaxValve Kit

Vehicles equipped with a U660E/F or U760E/F transmission may exhibit problems related to the B2 brake clutch. These include a delayed or harsh Reverse engagement, or a double bump when the B3 brake clutch applies before the B2 brake clutch.These concerns can be traced to a worn and/or sticking B2 control valve and plug valve. Sonnax offers oversized B2 control valve kit 47740-35K, which renews valve function to restore normal Reverse operation. Hardcoat anodized aluminum valve combats premature wear Annular grooves on the valves help center them in the bore to reduce future side-load wear Spring calibrated to match OE pressures

Valve Kit