Symptoms:

  • Delayed Reverse
  • Low line rise in Reverse
  • B2 Clutches burned
  • K3 Clutch burned

Cause:

Continual boost valve stroking results in sleeve bore wear and loss of Reverse pressure.

Correction:

Installing Sonnax drop-in boost valve kit restores critical tolerances to bring back normal operating conditions.

09G, 09K, 09M, 6F21WA, TF-60SN

Boost Valve Kit
Part No. 15741-51K

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

The boost sleeve in listed units wears from repeated oscillation of the boost valve, allowing Reverse pressure to exhaust. This will result in delayed Reverse, low line pressure in Reverse and/or burnt K3 and B2 brake clutches. Sonnax boost valve kit 15741-51K eliminates these concerns and restores proper hydraulic control. Drop-in Zip Valve™ parts install quickly and easily.

  • Valve
  • Sleeve

Sonnax valve body layouts provide a detailed overview of individual units making it quick and easy to determine what’s available for the specific valve body you’re working on. See all Sonnax valve body layouts.

Aisin AW TF-60SN Valve Body Layout

Aisin AW TF-60SN Valve Body Layout
  • 09G, 09K, 09M, 6F21WA, TF-60SN Boost Valve Kit 15741-51K
  • 09G, 09K, 09M, 6F21WA, TF-60SN Boost Valve Kit 15741-51K

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.

09G, 09K, 09M, 6F21WA, TF-60SN Boost Valve Kit Vacuum Test Locations