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Unique 1998 - 2003 Vortec 4.8 5.3 6.0 Standalone Fuel Inj. Wiring Harness W/4l80e (dbc) Markdown: -30% [0jRWAIml]

$60.99 $195.99 -69%

EASY TO INSTALL4 WIRE CONNECTION!'99 - '03 Vortec Drive by Cable Standalone Wiring Harnesswith4L80E TransmissionApplication'99 - '03Vortec 4.8, 5.3, 6.0Engines with Mechanical Throttle Body and 4L80E TransmissionsParts IncludedComplete Engine and Tra

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Unique 1998 - 2003 Vortec 4.8 5.3 6.0 Standalone Fuel Inj. Wiring Harness W/4l80e (dbc) Markdown: -30% [0jRWAIml]

EASY TO INSTALL4 WIRE CONNECTION!

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

with4L80E Transmission

  • Application'99 - '03Vortec 4.8, 5.3, 6.0Engines with Mechanical Throttle Body and 4L80E Transmissions
  • Parts IncludedComplete 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.
  • DescriptionThese harnesses are designed for '99 - '03Vortec 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 slidinggrommet sealfor that professional leak proof look. Harnesses are professionally constructed from Brand NewGMDelphi Connectorsand TXL (Polyethylene Cross Linked) High Temperature Wire to GM Specifications. All harnesses are100%Quality Inspected prior to shipping. Note that harnesses are fornon-emissionsequipped vehicles and do not include air pump or EGR provisions. All harnesses require PCM VATs removal.

What Our Customers Say

January 18, 2026

Absolutely no complaints!

The product is a class act.

- Bennett V..

January 18, 2026

Absolutely no complaints!

The product is a very good quality piece of kit.

- Malani C..

January 18, 2026

Absolutely no complaints!

It's a very well-made and reliable device.

- Mercy P..

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