Skip to content
Sonnax 124740-28K Transmission Pressure Switch Rebuild Master Pack 6T70 6L80

Sonnax 124740-28K Transmission Pressure Switch Rebuild Master Pack 6T70 6L80

by Sonnax
SKU S45376AK-1
$110.20 - $110.20
$110.20
$110.20 - $110.20
$110.20
Availability:
in stock, ready to be shipped

Delivery time

You will receive your package in 2–5 business days within the contiguous U.S.

Other Part Number: S124442RK

Manufacturer Part Number: 124740-28K

Brand: Sonnax

6L45, 6L50, 6L80, 6L90, 6T70 (Gen. 1), 6T75 (Gen. 1)

Pressure Switch Rebuild Master Pack
Part No. 124740-28K

Listed GM 6-speed transmissions often set various trouble codes related to failures of fluid pressure switches that are internal to the transmission electro-hydraulic control module (TEHCM). These codes may be accompanied by TCC apply problems or shift irregularities such as slipping, flares, harsh application, and bind-ups. As time goes by, the laminated portions of the pressure switches can breach, preventing normal switch operation. If more than one switch breaks down, failsafe mode can be triggered. Since switches cannot be obtained through OE channels, replacement of the TEHCM was the only previous remedy available.

It is no longer necessary to replace the expensive TEHCM assembly to rectify this concern. Installing Sonnax pressure switch rebuild master pack 124740-28K restores normal switch operation, eliminating codes and providing renewed shift performance in all ranges.

  • Allows salvage of expensive TEHCM
  • Installation tools included in kit

Before installing kit, test switches to verify proper electrical operation. Kit repairs laminate disc and seal failures only; it will not rectify electrical breakdown. See instructions for details.

  • Laminate Discs (40)
  • Seals (40)
  • Seal Installer
  • Piston
  • Seal Plunger
  • Laminate Installation Tool

Use this text to share information about your product.

Blog posts

See more