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  • Excess clutch overlap & clutch distress
  • Pressure control out-of-range codes
  • Downshift bind-ups
  • Flare shifts


The K3 clutch control valve provides source pressure for control of clutch apply and release. Responding to TCU and the linear solenoid, the K3 control valve will establish control timing of apply and release relative to engine torque. Bore wear can cause either an overlap and bind-up or premature exhausting of clutch pressure, resulting in a flare shift.


The Sonnax wear resistant sleeve and valve corrects circuit pressure loss and restores control timing of the K3 clutch.

09D, TR-60SN

K3 Clutch Control Valve Kit
Part No. 25741-08K

You need this if... View Instructions

Flare upshifts or downshift bind-ups in vehicles with the Aisin AWTR-60SN,VW/Audi 09D transmission can be caused by a worn K3 clutch control valve. Wear at this valve causes incorrect shift timing, which can also cause clutch distress. The Sonnax K3 clutch control valve kit 25741-08K helps restore shift timing.

  • The hard-coat anodized aluminum valve resists wear and fits more tightly in the sleeve bore than the OE for better sealing
  • The valve sleeve is highly wear-resistant for increased life
  • The new spring is included to maintain OE operating pressures
  • Sleeve
  • Valve
  • Spring

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 TR-60SN Valve Body Layout

Tr 60sn vbl thumb
  • 25741 08k combo
  • 25741 08k  1

You need this if...

A vacuum test at indicated ports fails to yield 18 in-hg or greater, or if visual wear is detected.

  • 25741 08k