29540479 Allison Transmission Neutral Start Back Up Switch Assembly (NSBU)

Code: 29540479

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  • Translates a physical input to a reference signal the transmission control module can recognize
  • Proper shift control
  • Allison Genuine Parts™
  • Manufactured by Allison
  • Built to original factory specifications

The Neutral Start Back up Switch Assembly translates a physical input to a reference signal the transmission control module can recognize.

Special Note: When placing your order, please include your transmission’s serial number in the Order Notes section during the checkout process.

The 29560679 Allison Transmission NSBU Switch Assembly includes:

(1) 2954013 Switch

(1) 29540472 Shield

$230.50

In Stock

Description

Key Functionality of the NSBU Switch Assembly

The Neutral Start Back Up Switch Assembly is a position indicator switch for the transmission control module to reference the shift selector. The switch assembly is key to proper shift control and engine crank.

Advantages of the NSBU Switch Assembly

  • Proper shift control
  • Allison Genuine Parts™
  • Built to original factory specifications

Common Signs the NSBU Switch Assembly Needs Replacement

  • Diagnostic codes relating to the switch
  • Erratic transmission operation
  • Water intrusion
  • TCM doesn’t activate reverse warn
  • The engine won’t crank
  • A sudden movement by inadvertently obtaining a moving range

NSBU Switch Assembly Failure Indicators

  • Water intrusion
  • The impact from a foreign object or road debris
  • High cycling of the shift selector

Related Products to #29540479

  • Selector shaft
  • Selector shaft seal
  • Alignment tool

Additional information

Weight16 oz
Dimensions10 × 4 × 2 in