Fleece FPE-HAR-GM-NSBU-0405 NSBU Pigtail | 2004.5-2005 GM 6.6L Duramax w/ Allison Transmission

Features:

• Direct-fit for 2004.5-2005 GM Duramax
• Compatible with Allison 1000/2000 transmissions
• Replaces damaged NSBU switch connectors
• Includes 6-inch pre-terminated pigtail
• Comes with heat-sealable butt connectors
• Fully automated wire cutting and crimping
• Restores transmission range sensor function
• Eliminates cutting or guessing during install
• OEM quality fit and finish
• Connects to Allison NSBU 29541852
• Made in the USA by Fleece Performance
• Reliable solution for transmission wiring issues

Restore Proper Transmission Function with Ease

If you own a 2004.5 to 2005 GM Duramax equipped with the Allison 1000 or 2000 Series transmission, you already know how critical the Neutral Safety Back-Up (NSBU) switch is to your truck’s shifting and starting functions. Over time, factory connectors can become brittle, damaged, or suffer from poor connections, leading to erratic shifting or starting issues. That’s where the Fleece Performance NSBU Pigtail comes in. This replacement harness provides a simple and reliable fix for worn or broken NSBU connectors. Featuring a 6-inch pre-terminated pigtail and heat-sealable butt connectors, this solution allows you to quickly repair your harness without the frustration of cutting, splicing, or dealing with inferior aftermarket parts.

Quality Construction Designed to Last

Fleece Performance manufactures this pigtail in-house using precision automated equipment to ensure perfect wire cuts and terminal crimps on every unit. This commitment to quality guarantees you receive a dependable repair that restores the connection to your Allison NSBU switch, part number 29541852. The plug-and-play design makes installation straightforward, getting you back on the road with confidence in no time. Whether you’re troubleshooting a shifting issue or performing preventive maintenance, this pigtail offers a professional-grade solution built to last. It’s another example of how Fleece delivers the parts you need to keep your truck performing at its best.

Fits: 2004.5, 2005 GM 6.6L Duramax w/ Allison Transmission

Application Notes:

• Fits 2004.5-2005 GM vans and trucks with the Allison 1000/2000 Series transmission
• Connects to Allison Transmission NSBU 29541852