{"product_id":"fleece-performance-01-04-gm-2500-3500-duramax-w-allison-transmission-nsbu-pigtails","title":"Fleece Performance 01-04 GM 2500\/3500 Duramax (w\/Allison Transmission) NSBU Pigtails","description":"\u003cp\u003e\u003cstrong\u003eSKU:\u003c\/strong\u003e \u003cspan itemprop=\"sku\"\u003eFPE-HAR-GM-NSBU-0104\u003c\/span\u003e | \u003cstrong\u003eUPC:\u003c\/strong\u003e 732777409594\u003c\/p\u003e\n\n\u003ch4\u003e\u003cstrong\u003eFleece Performance 2001-2004 GM 2500\/3500 Duramax (w\/Allison Transmission) NSBU Pigtails\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eThe Fleece Performance NSBU Pigtails replace the factory harness connector to the Neutral Safety Back Up switch on 2001-2004 GM heavy-duty trucks with 6.6L LB7 Duramax diesel and Allison 1000 transmission. Corrosion on the OEM pigtail disrupts TCM to ECM communication causing no crank or no start conditions and this direct replacement restores reliable starting every time. Built with premium materials these pigtails deliver long-term durability in harsh underhood environments.\u003c\/p\u003e\n\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTinned Copper Wires:\u003c\/strong\u003e Resist corrosion and oxidation for consistent electrical conductivity over years of exposure to moisture and road salt.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTXL Insulation:\u003c\/strong\u003e Provides resistance to heat abrasion and chemicals ensuring the harness withstands engine bay temperatures and vibrations.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDirect OEM Replacement:\u003c\/strong\u003e Matches factory connector design for seamless fit without modifications or splicing required.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePlug-and-Play Design:\u003c\/strong\u003e Installs in minutes by simply unplugging the old pigtail and plugging in the new one to eliminate starting failures.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMPN FPE-HAR-GM-NSBU-0104:\u003c\/strong\u003e Engineered specifically for 2001-2004 Duramax applications to solve the most common transmission switch harness failure.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eProduct Notes\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eAddresses intermittent no crank no start issues caused by deteriorated factory pigtail on the transmission NSBU switch.\u003c\/li\u003e\n\u003cli\u003eInspect your existing harness for green corrosion or cracked insulation before replacement.\u003c\/li\u003e\n\u003cli\u003eSpecial order item expect 1-3 business days processing before shipment.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eProfessional installation recommended.\u003c\/li\u003e\n\u003cli\u003eLocate NSBU switch on passenger side of Allison transmission unplug factory pigtail and install new one in under 10 minutes.\u003c\/li\u003e\n\u003cli\u003eNo special tools or transmission fluid drain needed includes protective conduit for added durability.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eThis Part Fits\u003c\/h4\u003e\n\u003ctable border=\"1\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eYear\u003c\/th\u003e\n\u003cth\u003eMake\u003c\/th\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eSubmodel\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e2001-2004\u003c\/td\u003e\n\u003ctd\u003eChevrolet\u003c\/td\u003e\n\u003ctd\u003eSilverado 2500 HD\u003c\/td\u003e\n\u003ctd\u003eBase\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2001-2004\u003c\/td\u003e\n\u003ctd\u003eChevrolet\u003c\/td\u003e\n\u003ctd\u003eSilverado 2500 HD\u003c\/td\u003e\n\u003ctd\u003eLS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2001-2004\u003c\/td\u003e\n\u003ctd\u003eChevrolet\u003c\/td\u003e\n\u003ctd\u003eSilverado 2500 HD\u003c\/td\u003e\n\u003ctd\u003eLT\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2004\u003c\/td\u003e\n\u003ctd\u003eChevrolet\u003c\/td\u003e\n\u003ctd\u003eSilverado 2500 HD\u003c\/td\u003e\n\u003ctd\u003eWT\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2001-2004\u003c\/td\u003e\n\u003ctd\u003eChevrolet\u003c\/td\u003e\n\u003ctd\u003eSilverado 3500\u003c\/td\u003e\n\u003ctd\u003eBase\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2001-2004\u003c\/td\u003e\n\u003ctd\u003eChevrolet\u003c\/td\u003e\n\u003ctd\u003eSilverado 3500\u003c\/td\u003e\n\u003ctd\u003eLS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2001-2004\u003c\/td\u003e\n\u003ctd\u003eChevrolet\u003c\/td\u003e\n\u003ctd\u003eSilverado 3500\u003c\/td\u003e\n\u003ctd\u003eLT\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2004\u003c\/td\u003e\n\u003ctd\u003eChevrolet\u003c\/td\u003e\n\u003ctd\u003eSilverado 3500\u003c\/td\u003e\n\u003ctd\u003eWT\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2002-2004\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eSierra 2500 HD\u003c\/td\u003e\n\u003ctd\u003eBase\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2001-2002\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eSierra 2500 HD\u003c\/td\u003e\n\u003ctd\u003eSL\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2001-2004\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eSierra 2500 HD\u003c\/td\u003e\n\u003ctd\u003eSLE\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2001-2004\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eSierra 2500 HD\u003c\/td\u003e\n\u003ctd\u003eSLT\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2003-2004\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eSierra 2500 HD\u003c\/td\u003e\n\u003ctd\u003eWT\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2002-2004\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eSierra 3500\u003c\/td\u003e\n\u003ctd\u003eBase\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2001-2002\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eSierra 3500\u003c\/td\u003e\n\u003ctd\u003eSL\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2001-2004\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eSierra 3500\u003c\/td\u003e\n\u003ctd\u003eSLE\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2001-2004\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eSierra 3500\u003c\/td\u003e\n\u003ctd\u003eSLT\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2004\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eSierra 3500\u003c\/td\u003e\n\u003ctd\u003eWT\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch4\u003eWhy Choose Fleece Performance?\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eOver 20 years specializing in Duramax diesel components with thousands of reliable installations.\u003c\/li\u003e\n\u003cli\u003eManufactured with automotive-grade materials tested for extreme diesel environments.\u003c\/li\u003e\n\u003cli\u003ePrecision-engineered in the USA for exact fit and function on GM heavy-duty trucks.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003e\u003cstrong\u003eFrequently Asked Questions\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eQ:\u003c\/strong\u003e Will this fit my 2002 Silverado 2500HD with 6.6L Duramax and Allison?\u003cbr\u003e\n      \u003cstrong\u003eA:\u003c\/strong\u003e Yes it fits all 2001-2004 Chevy and GMC 2500\/3500 models listed with LB7 Duramax and Allison 1000 transmission confirm your setup has the NSBU switch on the transmission.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eQ:\u003c\/strong\u003e What materials are used in the pigtail?\u003cbr\u003e\n      \u003cstrong\u003eA:\u003c\/strong\u003e Tinned copper conductors with TXL cross-linked polyethylene insulation and weatherproof OEM-style connectors for maximum durability.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eQ:\u003c\/strong\u003e Is installation DIY friendly and what warranty applies?\u003cbr\u003e\n      \u003cstrong\u003eA:\u003c\/strong\u003e Plug-and-play install takes minutes with basic tools Fleece offers a limited lifetime warranty against defects when installed correctly.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eShipping \u0026amp; Handling\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMethod:\u003c\/strong\u003e UPS Ground or USPS Priority\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAvailability:\u003c\/strong\u003e In stock - ships same or next business day\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackaging:\u003c\/strong\u003e Compact protective box 8 x 6 x 2 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.2 lbs\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Fleece Performance","offers":[{"title":"Default Title","offer_id":43518489165903,"sku":"FPEFPE-HAR-GM-NSBU-0104","price":79.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1062\/7920\/files\/fleece-performance-01-04-gm-25003500-duramax-wallison-transmission-nsbu-pigtails-fleece-performance.png?v=1767410934","url":"https:\/\/www.blackopsautoworks.com\/products\/fleece-performance-01-04-gm-2500-3500-duramax-w-allison-transmission-nsbu-pigtails","provider":"Black Ops Auto Works","version":"1.0","type":"link"}