Symptoms:

  • Soft shifts
  • Flare shifts
  • Long shifts
  • Shift quality gets worse as temperature increases
  • Intermittent clutch codes
  • Intermittent solenoid codes

Cause:

Clutch pressure loss around the adjuster

Correction:

Sonnax spring adjusters with O-rings eliminate the clutch oil loss, improving clutch application and shift quality.

09G, 09K, 09M, 6F21WA, TF-60SN, TF-80SC, TF-81SC

Spring Adjuster Kit
Part No. 15741-48K

Fits four locations. Also fits Volvo (AM6); Opel (AF40); Peugeot (TF80); Saab (AF40/6); Land Rover (TF80); Ford (AF21); Mazda (AW6A-EL).

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

In listed units, the oil circuit between the clutch control valve and the adjuster is clutch apply oil. The clutch apply oil opposes the solenoid oil and slows the stroke of the valve in response to clutch fill rate. When the adjuster leaks, both clutch oil and fill rate are affected. Installing Sonnax spring adjuster kit 15741-48K results in shorter, firmer shifts and less variance across temperature range.

  • Spring Adjusters (4)
  • O-Rings (6) 2 Extra

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-80SC Valve Body Layout

Aisin AW TF-80SC Valve Body Layout

Aisin AW TF-81SC Valve Body Layout

Aisin AW TF-81SC Valve Body Layout

Aisin AW TF-60SN Valve Body Layout

Aisin AW TF-60SN Valve Body Layout
  • 09G, 09K, 09M, 6F21WA, TF-60SN, TF-80SC, TF-81SC Spring Adjuster Kit 15741-48K
  • 09G, 09K, 09M, 6F21WA, TF-60SN, TF-80SC, TF-81SC Spring Adjuster Kit 15741-48K

You need this if...

Vacuum testing over the adjuster spring fails to hold 12 in-Hg. Use Sonnax test plate to cover and seal each of the four outlined areas in each valve body to perform a vacuum test.

09G, 09K, 09M, 6F21WA, TF-60SN, TF-80SC, TF-81SC Spring Adjuster Kit Vacuum Test Locations