Symptoms:

  • Poor shift quality
  • Forward slip
  • Delayed engagement
  • Burnt clutches

Cause:

Wear at the cast aluminum accumulator bores by the steel pistons allows apply oil to exhaust.

Correction:

The Sonnax drop-in accumulator piston incorporates an O-ring for positive sealing and annular grooves for better centering and wear prevention.
  • 09D, 09G, 09K, 09M, 6F21WA, TF-60SN, TF-80SC, TF-81SC, TR-60SN Accumulator Piston Kit 15741-14K
  • 09D, 09G, 09K, 09M, 6F21WA, TF-60SN, TF-80SC, TF-81SC, TR-60SN Accumulator Piston Kit 15741-14K
  • 09D, 09G, 09K, 09M, 6F21WA, TF-60SN, TF-80SC, TF-81SC, TR-60SN Accumulator Piston Kit 15741-14K
  • 09D, 09G, 09K, 09M, 6F21WA, TF-60SN, TF-80SC, TF-81SC, TR-60SN Accumulator Piston Kit 15741-14K
  • 09D, 09G, 09K, 09M, 6F21WA, TF-60SN, TF-80SC, TF-81SC, TR-60SN Accumulator Piston Kit 15741-14K
  • 09D, 09G, 09K, 09M, 6F21WA, TF-60SN, TF-80SC, TF-81SC, TR-60SN Accumulator Piston Kit 15741-14K

You need this if...

Visual inspection of the bore often shows shiny patches of wear. If wear is visible, perform a wet air or vacuum test in the necessary locations as shown. Vacuum test must hold a minimum of 18".

09D, 09G, 09K, 09M, 6F21WA, TF-60SN, TF-80SC, TF-81SC, TR-60SN Accumulator Piston Kit Vacuum Test Locations