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 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
Part No. 15741-14K

Fits multiple locations.

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

Wear at the multiple accumulator bores in listed units is very common. At the clutch and band locations, wear allows component apply oil to exhaust, resulting in delayed engagements, slipping shifts, and burnt clutches and bands. Wear at the line pressure accumulator allows throttle signal oil leakage, which can result in reduced line pressure. Sonnax accumulator piston kit 15741-14K incorporates an O-ring for positive sealing and annular grooves for better centering and wear prevention.This kit fits in several locations throughout the valve bodies as shown.

  • Piston
  • O-Ring

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 TR-60SN Valve Body Layout

Aisin AW TR-60SN Valve Body Layout

Aisin AW TF-60SN Valve Body Layout

Aisin AW TF-60SN Valve Body Layout
  • 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