'99 - '03 Vortec Drive by Cable Standalone Wiring Harness 

with 4L80E Transmission

• Application '99 - '03 Vortec 4.8, 5.3, 6.0 Engines with Mechanical Throttle Body and 4L80E Transmissions

• Parts Included Complete Engine and Transmission Wiring Harness including all engine and transmission sensor connectors, ALDL Connector, 7 ATO Style Fuse Block, Fuel Pump Relay, Switched Power Ignition Relay, Cruise Control Wiring, Performance Shift Mode Wiring, MIL Light Wiring, P/N Wiring, TCC/Switch Wiring, Tach Wiring, Complete Detailed Instructions.

• Description These harnesses are designed for '99 - '03 Vortec retrofits into older muscle cars and street rods or newer non-emissions controlled vehicles. They are completely plug and play with switched power, constant power and ground connections required. Harnesses allow for installing the PCM underneath the dash of your vehicle with a sliding grommet seal for that professional leak proof look. Harnesses are professionally constructed from Brand New GMDelphi Connectors and TXL (Polyethylene Cross Linked) High Temperature Wire to GM Specifications. Note that harnesses are for non-emissions equipped vehicles and do not include air pump or EGR provisions. All harnesses require PCM VATs removal.