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Symptoms:
  • B2 Brake clutches burned
  • Delayed Reverse
  • K3 Clutch burned
  • Low line rise in Reverse
Cause:

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

Correction:

Installing Sonnax boost valve and sleeve restores critical tolerances to bring back normal operating conditions.

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

Boost Valve Kit

Part No.

15741-51K

Boost Valve Kit
  • 15741-51k_combo

  • Boost Valve Kit

Small_15741-51k_combo Small_15741-51k

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

Boost Valve Kit

Part No. 15741-51K

  • Valve
  • Sleeve

This kit also fits BMW (6F21WA) & VW/Audi (09G, 09K, 09M).

Complaint:

  • B2 Brake clutches burned
  • Delayed Reverse
  • K3 Clutch burned
  • Low line rise in Reverse

Cause:

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


Correction:

Installing Sonnax boost valve and sleeve restores critical tolerances to bring back normal operating conditions.

The boost sleeve in Aisin AW TF-60SN 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.

Related Parts

You need this if...

A vacuum test at the port indicated fails to hold at least 18 in-Hg.

  • Test Locations

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Valve Body Layouts

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.

Valve Body Layout Aisin AW TF-60SN

Related Tech Articles

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