Symptoms:

  • Connector pushed into pan area
  • Retention tabs break off wiring harness connector

Cause:

The plastic retention tabs that hold the wiring harness connector in place are easily broken. Once broken, the connector may push into the case.

Correction:

Sonnax wiring harness connector bracket positively supports the connector and prevents it from pushing into the case even if the plastic retention tabs are broken.

4L80-E, 4L85-E

Wiring Harness Connector Bracket
Part No. 34998-01K

Fits late style connector only.

View Instructions Find a Distributor

It is common for one of the three plastic retention tabs to break on the wiring harness case pass-through connector in GM 4L80-E and 4L85-E units. This allows the connector to be pushed into the case when connecting the external harness. Not only does this require extra labor to fix, it also requires a new wiring harness. Sonnax wiring harness connector bracket 34998-01K retains the internal harness connector even though the retention tabs may be broken.

  • Bracket firmly holds the connector in place from inside the pan using existing hardware.
  • Connector bracket saves expensive wiring harness replacement

4L80-E and 4L85-E units use two different wiring harness connector styles. The early style has exposed terminals and a red rubber gasket. The late style has a gray plastic enclosure surrounding the terminals. The Sonnax bracket 34998-01K works only with the late style connector.

  • Bracket
  • Bolts (2)
  • 4L80-E, 4L85-E Wiring Harness Connector Bracket 34998-01K
  • 4L80-E, 4L85-E Wiring Harness Connector Bracket 34998-01K