Genuine Allison Transmission Control Valve B Trim p/n 29533075 The Control

Genuine Allison Transmission Control Valve B Trim p/n 29533075 The Control Valve B Trim Valve is a variable bleed solenoid that helps to control the pressure of the clutch leading to smoother shifts. HOW IT WORKS A Control Valve B Trim Valve is a variable bleed solenoid that helps to control pressure in the transmission. The pressure is dependent upon and proportional to the electric current going to the coil. The current is normally closed when there is no current. When there is no current, the fluid flowing through the solenoid is blocked. Through this process, the valve can regulate the pressure. WHY IT MATTERS The pressure regulation that the Control Valve B Trim Valve contributes allows for more accurate control of the clutch pressure. More accurate control leads to smoother shifts and a longer life expectancy for the clutch plates as well as better shift quality. If the valve fails, it could lead to poor shift quality and possible transmission fluid leaks. BENEFITS Accurately controls clutch pressure Better shift quality Long life of clutch plates Allison Genuine Parts Built to original factory specifications SIGNS OF NEEDING REPLACEMENT Poor shifts DTC codes CAUSES OF FAILURE Lack of lubrication Contaminated fluid, Core Charge: 0.00