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Symptoms:
  • Harsh shifts
  • Shift codes
  • Shift concerns
Cause:

Wear at the valve/sleeve bore allows critical control pressures to cross leak between valve body circuits or escape to the sump. Accumulator control pressure may be high or low depending on wear location.

Correction:

The Sonnax accumulator control plunger valve and sleeve kit ends cross leaks caused by wear and contains hydraulic pressure in the intended circuits. Pressure loss to the sump caused by worn components is eliminated.

A750E, A750F, A760E, A760H, A761E, A960E, A960F, AB60E, AB60F

Accumulator Control Plunger Valve Kit

Part No.

147741-35K

Accumulator  Control Plunger  Valve Kit
  • 147741-35k_combo

  • Accumulator  Control Plunger  Valve Kit

Small_147741-35k_combo Small_147741-35k

A750E, A750F, A760E, A760H, A761E, A960E, A960F, AB60E, AB60F

Accumulator Control Plunger Valve Kit

Part No. 147741-35K

  • Valve
  • Sleeve
  • Adjustable Valve Stop

Complaint:

  • Harsh shifts
  • Shift codes
  • Shift concerns

Cause:

Wear at the valve/sleeve bore allows critical control pressures to cross leak between valve body circuits or escape to the sump. Accumulator control pressure may be high or low depending on wear location.


Correction:

The Sonnax accumulator control plunger valve and sleeve kit ends cross leaks caused by wear and contains hydraulic pressure in the intended circuits. Pressure loss to the sump caused by worn components is eliminated.

When shift codes and shift complaints such as harsh shifts are found in Toyota/Lexus A750E/F, A760, A960 and AB60 series units, the accumulator control valve is frequently the culprit. If the wear is restricted to the accumulator control plunger valve and sleeve, installing Sonnax accumulator control plunger valve and sleeve kit 147741-35K will eliminate cross leaks and uncontrolled pressure loss.

  • Restores OE accumulator control valve function
  • Hard-coat anodized aluminum provides wear resistance
  • Sleeve is manufactured of highly wear-resistant aluminum alloy

Related Parts

You need this if...

A vacuum test at the 1st ports indicated fail to hold at least 14 in-Hg, and the 2nd port indicated holds at least 18 in-Hg.

If the 2nd port test fails to hold 18in-Hg, do not use this kit. Install 147741-24K to repair this unit.

  • Test Locations

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Valve Body Layouts

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.

Valve Body Layout Toyota A750E/F Series
Valve Body Layout Toyota A760E/F/H Series

Related Tech Articles

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