LS Standalone Engine and Gearbox Wiring Harness for 6L80E GM LS Swap Wiring Harness

Product Overview

The LS Standalone Engine and Gearbox Wiring Harness for 6L80E is a complete plug-and-play solution designed specifically for GM LS engine swap projects. This standalone wiring harness supports LS3 / LS2 6.2L engines paired with 6L80E or 6L90E automatic transmissions, making it ideal for performance upgrades, restomod builds, and custom vehicle conversions.

Built for 58X DBW (Drive-By-Wire) systems from 2006–2015 GM trucks, this harness allows the engine and transmission to operate independently from the original vehicle wiring, ensuring a clean, reliable, and efficient installation.

Key Features & Selling Points

✅ Wide Compatibility

• Designed for LS3 & LS2 6.2L engines

• Supports 6L80E & 6L90E transmissions

• Compatible with 58X DBW systems (2006–2015)

• Suitable for GM truck-based LS swap applications

✅ True Standalone Design

• Standalone operation for engine and transmission

• Eliminates unnecessary factory wiring

• Simplifies LS engine swap integration into any chassis

✅ Easy & Fast Installation

• Clearly labeled wires for ignition, fuel pump, gauges, and power

• Minimal chassis connections required

• Ideal for DIY builders and professional workshops

✅ Complete Plug-and-Play Harness

• Fully terminated engine and transmission connectors

• Includes connectors for LS3 5-wire MAF, MAP sensor, injectors, and more

• No cutting or splicing needed

✅ Upgraded Power & Extended Length

• Professionally upgraded 60A relays

• Added harness length for flexible ECU placement

• Supports any injector size without performance issues

✅ Injector Conversion Flexibility

• Includes adapter connectors for EV6 to EV1 conversion

• Compatible with Delphi Multi injectors (4.8L / 5.3L / 6.0L)

• Maximizes compatibility across LS platforms

Application Scenarios

• GM LS engine swap projects

• Classic car & restomod conversions

• Muscle cars, hot rods, and street performance builds

• Off-road vehicles and race applications

• Custom automotive builds requiring LS + 6L80E integration

Why Choose Us

✔ Professional Wiring Harness Manufacturer
We specialize in automotive wiring harness design and manufacturing, with extensive experience in LS swap and performance wiring solutions.

✔ OEM-Grade Materials
All harnesses are built using high-quality automotive-grade wires, connectors, and terminals for durability, heat resistance, and long-term reliability.

✔ Strict Quality Control
Each standalone wiring harness is 100% electrically tested before shipment to ensure flawless performance.

✔ Customization Support
We offer OEM and custom wiring harness solutions, including length adjustments, connector changes, and special application requirements.

✔ Global Supply & B2B Support
Trusted by wholesalers, distributors, workshops, and performance brands worldwide, with stable supply capacity and fast response.