U140-BOOST - U140/U240/U241 Toyota Steel Main Pressure Regulator Boost Bushing & Valve Kit Steel Replacement Pressure Regulator Boost valve with Bushing and Clutch Apply Boost Valve Kit Fits: U140, U240 & U241 Toyota & Lexus Models Includes (2) parts a Steel Replacement Pressure Regulator Boost valve with Bushing and Clutch Apply Boost Valve Kit Fixes: High Mileage or Worn out Boost Assembly causing lazy or low pressure rise, slip codes and erratic shift complaints. Installation recommendation: Experienced technician Transmission removal necessary: No