• Delayed Reverse
  • Soft shifts under load
  • Harsh Reverse
  • Clutch failure
  • Low line rise


Boost valve assembly wears out.


Replace worn boost valve assembly with Sonnax drop-in boost valve kit to eliminate oil leakage.


Boost Valve Kit
Part No. 95200-03K

Type 2 valve bodies only.

You need this if... View Instructions Find a Distributor

In Saturn TAAT units, poor line rise results when excessive wear occurs in the boost sleeve assembly. This prevents the pressure regulator valve from being stoked to the high line position. Valve wear can also result in the boost valve sticking, causing unintended line rise. Sonnax boost valve kit 95200-03K restores line pressure.

  • Boost valve and sleeve assembly are made from precision steel for better wear resistance
  • Assembly is designed to tight tolerances to prevent oil leakage
  • O-Rings included for better sealing
  • Drop-in Zip Valve™ parts install quickly and easily
Learn More About Zip Valve™ Drop-In Repairs
  • Valve
  • Sleeve
  • O-Rings (2)
  • TAAT Boost Valve Kit 95200-03K
  • TAAT Boost Valve Kit 95200-03K

You need this if...

Vacuum testing at the port(s) indicated fails to hold the recommended minimum in-Hg, or if wear is visually detected.

TAAT Boost Valve Kit Vacuum Test Locations