Transmission Parts Aisin AW TF-80SC TF-60SN TF-81SC TR-60SN 09D Valve Body Accumulator Components
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Symptoms:

  • Severe wear at accumulator bores
  • Low clutch oil pressure
  • Low TCC pressure
  • Low EPC pressure

Cause:

Since the length of the OE accumulator piston is short relative to its diameter, the effect of incidental side loading forces is increased. This characteristic, combined with relatively strong nested springs and the soft material of the valve body, results in severe wear. This extreme wear is noticeable in many low mileage units.

Correction:

Installing the Sonnax sleeve creates a new accumulator bore surface in severely worn valve bodies. Our improved sleeve design provides increased wear resistance and sealing. The drop-in kit comes with an assortment of custom-designed springs which allow you to duplicate and restore OE accumulator calibration and response.

09D, TF-60SN, TF-80SC, TF-81SC, TR-60SN

Accumulator Piston Kit
Part No. 39741-42K

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

Worn-out accumulator piston bores in listed Aisin AW 6-speed units allow pressurized transmission fluid to leak past the accumulator piston to the sump. These leaks can result in a flare at upshift, delayed engagement, poor line rise or clutch failure. The Sonnax accumulator piston kit 39741-42K will restore a worn accumulator bore and correct leakage problems.

  • Salvages valve bodies with severe accumulator bore wear
  • O-Ring seal improves piston response
  • Drop-in Zip Valve™ parts install quickly and easily
OE Springs Sonnax Springs
Paint Color Dimensions Paint Color Dimensions
Yellow O.D.= .618" (15.7mm) Yellow O.D.= .520" (13.21mm)
Wire Dia. = .078" (1.98mm) Wire Dia. = .068" (1.73mm)
Yellow O.D.= .412" (10.46mm) Yellow O.D.= .345" (8.76mm)
Wire Dia. = .054" (1.37mm) Wire Dia. = .047" (1.19mm)
No Paint O.D.= .632" (16.05mm) No Paint O.D.= .523" (13.28mm)
Wire Dia. = .083" (2.11mm) Wire Dia. = .070"(1.78mm)
Gray/Blue O.D.= .429" (10.90mm) Gray/Blue O.D.= .336" (8.53mm)
Wire Dia. = .063" (1.60mm) Wire Dia. = .051" (1.30mm)
Learn More About Zip Valve™ Drop-In Repairs

This kit can be modified to fit other variations of the AW 6-speed applications by modifying the sleeve length. Can be used in 5 locations.

  • Piston
  • Sleeve
  • O-Ring
  • Springs (4) Selective

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, TF-60SN, TF-80SC, TF-81SC, TR-60SN Accumulator Piston Kit 39741-42K
  • 09D, TF-60SN, TF-80SC, TF-81SC, TR-60SN Accumulator Piston Kit 39741-42K
  • 09D, TF-60SN, TF-80SC, TF-81SC, TR-60SN Accumulator Piston Kit 39741-42K
  • 09D, TF-60SN, TF-80SC, TF-81SC, TR-60SN Accumulator Piston Kit 39741-42K
  • 09D, TF-60SN, TF-80SC, TF-81SC, TR-60SN Accumulator Piston Kit 39741-42K
  • 09D, TF-60SN, TF-80SC, TF-81SC, TR-60SN Accumulator Piston Kit 39741-42K

You need this if...

The accumulator bore and piston wear is severe enough that Sonnax accumulator piston kit [15741-14K] will not function in the worn bore.

Related Sonnax Parts

Required

Recommended

TF-80SC, TF-81SC Oversized C2 Clutch Control Valve Kit 39741-46K

TF-80SC, TF-81SC

Oversized C2 Clutch Control Valve Kit 39741-46K

Also fits Volvo (AM6), Opel (AF40); Peugeot (TF-80), Saab (AF40/6), LandRover (TF-80), Ford (AF21) and Mazda (AW6A-EL).

    Helps cure:
  • 3-4 Flare
  • 4-5-6 Slip
  • Erratic shift timing
  • C2 Clutch burned
  • Pressure control out-of-range codes
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