SonnaxValve Kit

Toyota/Lexus vehicles equipped with A750E and A750F transmissions may exhibit 5th Gear complaints and a burnt B1 brake as well as low line pressure, resulting in poor shift quality and slipping in Forward or Reverse. These issues can often be traced to wear in the B1 apply control plunger sleeve, which allows line pressure to escape and cause drivability concerns.Installing Sonnax B1 apply control plunger kit 147741-55K eliminates pressure loss, revives B1 apply pressure control and restores shift quality. Sleeve manufactured from highly wear-resistant aluminum Hardcoat anodized aluminum valve combats premature wear Annular groove helps center valve in sleeve to reduce side-load wear Drop-in Zip Valve™ parts install quickly and easily

Valve Kit; B1 Apply Control Plunger, Includes Valve and Sleeve