Select USPS First Class Mail When Checking Out For Faster, Cheaper Shipping.
Sonnax 4T40E 4T45E Boost Valve & Sleeve K42889 Automatic Transmission
OPT Product Code: SNX-33886-03K$63.40
Product Details
The boost valve assembly is activated by torque signal pressure from the pressure control solenoid and reverse pressure to aid in adjusting line pressure at the pressure regulator valve. This boost valve is continuously oscillating in the sleeve, which leads to wear and hydraulic leakage. When wear occurs, critical oil pressure is allowed to cross-leak between the circuits or leak to exhaust. These leaks can result in either no line rise or an unwanted increase in line pressure. Sonnax now offers a replacement boost valve assembly 33886-03K that restores the hydraulic integrity and controls line rise. Features & Benefits: Replacement boost sleeve delivers oil 360 degrees around the valve, reducing side load. Sleeve is manufactured from highly wear-resistant aluminum. Valve is made from anodized aluminum. Tight tolerances on the sleeve and valve maintain an ideal fit that prevents leakage.
Promotions, New Products and More...
Sign Up for our Newsletter today!
{ Oregon Performance Transmission will NEVER sell, transfer, show or otherwise cause your email to be seen by anyone else. }