Painless Performance 1999-2006 GM Gen III 4.8, 5.3 & 6.0L Harness Std. Length

1999-2006 GM Gen III 4.8/5.3/6.0L EFI Harness - Mechanical TB

This harness is designed for the 1999-2006 4.8L, 5.3L, 6.0L mechanical throttle body engines using an LS1 / LS6 PCM with a 4L60E, 4L65E, 4L70E, 4L80E, 4L85E, or manual transmission. 2003-2006 Engines will require a mechanical throttle body to be installed. 2003-2006 engines which were originally flex fuel will also require Delphi Multec 2 (factory truck style) injectors to be installed. Harnesses do not include connections for the rear O2 sensors or fuel tank pressure sensor but are available separate. Included with this harness is a 10 circuit weatherproof fuse block and GM color coded wires with labels for easy installation.

Painless Performance is the recognized leader in automotive wiring products. Whether you have a race car, hot rod, street rod or truck you can depend on Painless for quality innovative electrical products. From complete chassis and fuel injection harnesses, to race car switch control centers, battery accessories and more, Painless offers life time guaranteed, proven performance.