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USD 128.08
Part #: AT29541852

Allison 29541852 NSBU (Neutral Start Back Up) Switch

Vehicle Fitment:
2004.5-2005 GM 6.6L Duramax LLY (Must Verify Your Existing Switch) | See full application list below
Part #: AT29541852
★★★★★ ★★★★★ 2 Reviews
$128.08
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Description

The Allison 29541852 NSBU (Neutral Start Back Up) Switch is genuine OEM replacement for the malfunctioning NSBU switch in your 2004.5-2005 GM 6.6L Duramax LLY. The NSBU switch is mounted on the transmission housing and provides selector position information to the TCM. This switch detects the position of the shift lever and notifies the TCM that the vehicle is in Park or Neutral allowing the starter to engage. The NSBU switch can fail, causing issues like: DTCs for the pressure switch, fail safe mode, no start condition, and incorrect gear showing on display.  

Features: 
  • Single Connector Switch 
  • Genuine OEM Replacement  
  • Installed With Common Hand Tools 
Note: Please visually verify the switch on your transmission has the single connector before ordering.  

Vehicle Fitment

YEAR MAKE FOR ENGINE SERIES
2004 Chevy 6.6L LB7 Duramax
2004.5 Chevy 6.6L LLY Duramax
2005 Chevy 6.6L LLY Duramax
2004 GMC 6.6L LB7 Duramax
2004.5 GMC 6.6L LLY Duramax
2005 GMC 6.6L LLY Duramax

Specifications

  • MPN 29541852
  • SKU AT29541852
  • ID 5215
  • Manufacturer Name Allison Transmission
  • Shipping Weight 2.00 lb.
  • Shipping Length 5 in.
  • Shipping Width 13 in.
  • Shipping Height 3 in.
  • Fuel Type Diesel
  • Prop 65 Prop 65 WarningWARNING: Cancer & Reproductive Harm - P65Warnings.ca.gov
  • Internal L0R2

Reviews

★★★★★ ★★★★★
5.0/5 Stars out of 2 Reviews
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Verified Buyer
Perfect fit
5
Exactly the same as the stock NSBU . Fit my 05 LLY, Easy to install 2 bolts, and the plug and your good to go.
Fixed!!!
5
I replaced my broken NSBU switch with the new one from xtreme diesel and it fixed my problem now the truck starts with the key I’m so happy I will be a return customer

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