Printpartsummary
Symptoms:
  • Damaged accumulator bore
  • Loss of accumulator control
  • Poor shift quality
Cause:

Debris and piston contact can score the 4th accumulator bore.

Correction:

Install this sleeve and pinless accumulator piston.

4L80-E, 4L85-E

4th Accumulator Repair Kit

Part No.

34805-01K

4th Accumulator Repair Kit
  • 4th Accumulator Repair Kit

Small_34805-01k

4L80-E, 4L85-E

4th Accumulator Repair Kit

Part No. 34805-01K

  • Sleeve
  • Pinless Accumulator Piston
  • PTFE Seal
  • D-Ring Seal
  • Pin Bore Plug

Includes Sleeve, Pinless Piston & Seals

Complaint:

  • Damaged accumulator bore
  • Loss of accumulator control
  • Poor shift quality

Cause:

Debris and piston contact can score the 4th accumulator bore.


Correction:

Install this sleeve and pinless accumulator piston.

Repeated reciprocation of the 4th accumulator piston causes wear at the piston/pin interface. After this wear reaches a critical point, the piston bore wear allows the piston to get cocked and gall the accumulator bore. Once this bore becomes severely galled, the accumulator body must be replaced. The Sonnax kit 34805-01K salvages accumulator housings with a worn or scored 4th accumulator bore. The kit includes a press-in sleeve, and a pinless accumulator piston that uses a PTFE guide ring to support the piston in the bore. No machining is required.

  • Kit salvages accumulator housings with a worn or scored 4th accumulator bore.
  • A press-in sleeve is included for easy installation.
  • Pinless accumulator piston uses a PTFE guide ring to support the piston in the bore.
  • Patent No. 6,899,211

Click here to view PDF if instructions do not appear below.

It appears you don't have a PDF plugin for this browser. Click here to view the PDF file.

Contact a Sonnax Distributor to purchase this part.