K1 Clutch Control Valve Kit, for 09D, TR-60SN, Sonnax Transmission
K1 Clutch Control Valve Kit, for 09D, TR-60SN, Sonnax Transmission
K1 Clutch Control Valve Kit, for 09D, TR-60SN, Sonnax Transmission

K1 Clutch Control Valve Kit, for 09D, TR-60SN, Sonnax Transmission

  • Sale
  • $101.99

REQUIRES VB-FIX: VB-FIX, T-VB-FIX

REQUIRES TOOL: F-25741-TL25

Superseded Part Number: 25741-25K, S59741SB-1

Interchange Part Number: 25741-25K, S59741SB-1

Surface Finish: new

Manufacturer Part Number: 25741-25K, S59741SB-1

Other Part Number: 25741-25K, S59741SB-1

Brand: Sonnax

UPC: Does not apply

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Symptoms:

  • Delayed Forward
  • Coastdown Neutral
  • Flare shifts
  • K1 Clutch burned

Cause:

The K1 clutch control valve provides source pressure for control of clutch apply and release. Responding to TCU and the linear solenoid, the K1 control valve will establish control timing of apply and release relative to engine torque. Bore wear can cause either an overlap, bind-up or premature exhausting of clutch pressure, resulting in a flare shift.

Correction:

The Sonnax wear-resistant sleeve and valve correct circuit pressure loss and restore control timing of the K1 clutch control valve.

09D, TR-60SN

K1 Clutch Control Valve Kit
Part No. 25741-25K

      REQUIRES TOOLING: F-25741-TL25
        REQUIRES VB-FIX: VB-FIX

In Aisin AW TR-60SN and VW/Audi 09D units, bore wear at the K1 clutch control results in delayed engagement into Drive, flare on 4-5 upshift and harsh 5-4 coast downshift. This bore wear will cause a clutch overlap condition (bind-up) or premature exhaust of clutch pressure (flare). Installing Sonnax K1 clutch control valve kit 25741-25K will correct source pressure and clutch control timing.

  • Hardcoat anodized aluminum valve combats premature wear
  • The tuned spring is included to maintain OE operating pressures with the new valve
  • Sleeve
  • Valve
  • Spring
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