LS & LT Harnesses and Accessories
At CPP, we understand the intricacies involved in updating your classic ride with modern performance. That's why we offer an extensive selection of high-quality LS/LT engine wiring harnesses, electrical components, and accessories tailored specifically for classic cars and trucks. Whether you're working on a Chevy truck, Chevy Tri-Five, Camaro, Nova, Chevelle, El Camino, or even Ford cars and trucks, our products are designed for precise fitment and
Our LS/LT harnesses and accessories are engineered for durability and reliability, ensuring your engine swap project is both efficient and successful. From individual components to complete turnkey standalone harnesses, we provide everything needed to power your LS engine swap, delivering long-lasting performance and meeting the distinct demands of a variety of classic makes and models.
With CPP's range of LS/LT products, you can expect seamless integration into your classic vehicle. Our harnesses and accessories are designed to simplify your engine conversion process, offering reliable connections and reducing installation time. This means you'll spend less time troubleshooting and more time enjoying the powerful performance of your upgraded engine.
Choose Classic Performance Products for all your LS/LT harness and accessory needs, and experience unrivaled quality, compatibility, and customer support. Trust us to deliver the products that make your classic car's LS or LT engine upgrade smooth, reliable, and hassle-free.
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PSI Conversion LS Wiring Harness for 2009-2015 LS 58X with 6L80E or 6L90E2009-2015 LS 58X with 6L80E or 6L90E
Add to CompareIn StockPart # HAR-1098$819.00 -
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PSI DBW w/ T56/TR6060 Wiring Harness2010-2013 T56/TR6060
Add to CompareIn StockPart # HAR-1067$569.00 -
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Go Shift GM 4L60/4L80 Transmission ControllerGo Shift Stand Alone Trans Control Unit GM/ 4L60/ 4L65/ 4L80/ 4L85
Add to CompareIn StockPart # FI20010$599.00 -
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PSI Auto Trans Wiring Harness w/ 6L80E for 2008-2013 LS3 6.2L Automatic Transmission with 6L80E2008-2013 LS3 6.2L Automatic Transmission with 6L80E
Add to CompareIn StockPart # HAR-1071$719.00 -
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PSI Vortec DBW w/ 4L60E / 4L80E Standalone Wiring Harness5-Pin (A/C)
Add to CompareIn StockPart # HAR-1084$614.00 -
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PSI Auto Trans Wiring Harness w/ 6L80E for 2008 LS2 6.0L Auto Transmission with 6L80E2008 LS2 6.0L Auto Transmission with 6L80E
Add to CompareIn StockPart # HAR-1078$719.00 -
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PSI Vortec DBW w/ 4L60E Standalone Wiring Harness w/ LS1 Injectors1999-2006 Vortec Chevy, GMC, Cadillac and Hummer Truck Engines with 4L60E with LS1 Injectors
Add to CompareIn StockPart # HAR-1090$549.00 -
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PSI Vortec w/ T56 Standalone Wiring Harness w/ LS1 Injectors1999-2006 Vortec Chevy, GMC, Cadillac and Hummer Truck Engines with T56 with LS1 Injectors
Add to CompareIn StockPart # HAR-1091$549.00 -
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PSI DBC LS1 w/ 4L60E Standalone Wiring Harness1997-2002 LS1 with 4L60E
Add to CompareIn StockPart # HAR-1012$549.00 -
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PSI Wiring Harness LY6 w/ 6L80E2009-2013 6.0L or 6.2L LY6 with 6L80E
Add to CompareIn StockPart # HAR-1074$719.00 -
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PSI Gen IV Wire Harness w/ 4L60E Auto Transmission2008-2009 L76 with 4L60E
Add to CompareIn StockPart # HAR-1046$659.00 -
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PSI Vortec DBW w/ 4L60E Standalone Wiring Harness2003-2007 Chevy & GMC Vortec with 4L60E, DBW
Add to CompareIn StockPart # HAR-1014$579.00 -
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PSI Vortec w/ 4L60E Standalone Wiring HarnessVortec with 4L60E with EV6 Injectors
Add to CompareIn StockPart # HAR-1030$579.00 -
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PSI Gen IV Standalone Wiring Harness w/ 4L60E2008-2013 LS3 with 4L60E
Add to CompareIn StockPart # HAR-1038$659.00 -
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PSI Gen IV Auto Transmission Wiring Harness 4L60EAuto Transmission with 4L60E
Add to CompareIn StockPart # HAR-1036$659.00 -
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PSI Wiring Harness w/ 4L60E2010-2013 L99 with 4L60E
Add to CompareIn StockPart # HAR-1068$659.00 -
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PSI T56/TR6060 Manual Transmission Wiring HarnessT56 or TR6060 Manual Transmission
Add to CompareIn StockPart # HAR-1065$569.00 -
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PSI Gen IV Engine w/ 6L80E Standalone Wiring Harness2006-Present 58x Engines with 6L80 or 6L90E
Add to CompareIn StockPart # HAR-1086$719.00 -
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PSI Conversion LS Wiring Harness for 2005-2006 GM LS2 with 4L60E2005-2006 GM LS2 with 4L60E
Add to CompareIn StockPart # HAR-1094$664.00 -
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PSI Gen IV Manual Standalone Wiring Harness w/ T56/TR60602008-2013 LS3 Manual Transmission with T56/TR6060
Add to CompareIn StockPart # HAR-1037$569.00 -
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PSI DBC LT1/LT4 w/ T56 Standalone Wiring Harness1994-1995 Vortec LT1 or LT4 with T56
Add to CompareIn StockPart # HAR-1006$519.00 -
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PSI Vortec w/ 6L80E Auto Transmission Wiring Harness2006-2013 LS7 Vortec with 6L80E Auto Transmission
Add to CompareIn StockPart # HAR-1070$719.00 -
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PSI DBC Standalone Wiring Harness w/ LS3 Injectors1999-2006 Vortec Chevy, GMC, Cadillac and Hummer Truck Engines with T56 with LS3 Injectors
Add to CompareIn StockPart # HAR-1092$549.00 -
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PSI DBC Wire Harness Auto Trans 4L60 Delphi1999-2003 Vortec Automatic Transmission 4L60 Delphi
Add to CompareIn StockPart # HAR-1018$549.00 -
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PSI Auto Trans L76 Wiring Harness w/ 6L80E2008-2009 L76 with 6L80E
Add to CompareIn StockPart # HAR-1075$719.00 -
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PSI Vortec DBC w/ 4L80E Standalone Wire Harness1991-2003 Vortec with 4L80E with Electronic Auto Transmission
Add to CompareIn StockPart # HAR-1018-UG$549.00 -
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PSI 58X w/ 4L60E Wiring Harness DBW2008 LS2 6.0L 58x with 4L60E
Add to CompareIn StockPart # HAR-1066$659.00 -
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PSI Vortec DBW w/ 4L80E Standalone Wiring Harness2003-2007 Vortec with 4L80E, DBW
Add to CompareIn StockPart # HAR-1014-UG$579.00 -
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PSI DBW LS2 58X w/ 4L60E Wiring Harness2005-2007 LS2 58x with 4L60E
Add to CompareIn StockPart # HAR-1064$659.00 -
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PSI Wiring Harness LH6 w/ 6L80E w/ EV6 Injectors2005-2014 LH6 with 6L80E with EV6 Injectors
Add to CompareIn StockPart # HAR-1058$589.00 -
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PSI Vortec LY6/L92 Standalone Wiring Harness2007-2008 Vortec LY6/L92
Add to CompareIn StockPart # HAR-1040$659.00 -
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PSI DBW T56 Standalone Wiring Harness2002 Vortec T56, DBW
Add to CompareIn StockPart # HAR-1085$599.00 -
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PSI 58X Automatic Transmission Wiring Harness w/ 6L80E2006-2007 LS2 6.0L 58x Automatic Transmission with 6L80E
Add to CompareIn StockPart # HAR-1077$719.00 -
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PSI DBC LS1 w/ T56 Standalone Wiring Harness1997-2002 LS1 with T56
Add to CompareIn StockPart # HAR-1013$549.00
