FuelTech LS550 V8 Complete Harness - 2002007265
Ultimate Plug and Play LS Swap Harness for FT550 Systems
The FuelTech LS550 V8 Complete Harness is a purpose-built solution for simplifying your LS swap when running a FuelTech FT550 or FT550LITE ECU. Designed for true plug and play functionality, this harness delivers a clean, professional installation while supporting the flexibility required in high-performance builds.
Pre-terminated for GM LS engines, this harness includes all relays, fuses, and wiring required for a simple 3-wire battery hookup and ignition power connection, making it one of the most efficient ways to wire a standalone LS setup.
Built Specifically for LS Engine Conversions
Engineered for full standalone conversions, this harness replaces the factory ECU and wiring completely, providing a streamlined and reliable solution for LS-powered projects.
- Designed for FuelTech FT550 and FT550LITE ECUs
- Compatible with GM LS-based engines
- Supports both 24X and 58X crank trigger systems
- Ideal for complete LS swap applications
Full Plug and Play Capability with OEM Compatibility
This harness is designed to integrate seamlessly with OEM-style components while maintaining the flexibility needed for custom builds.
- Direct connection for LS3-style ignition coils
- Compatible with OEM GM electronic throttle bodies
- Supports LS2, LS3, LS7, LSA, LS9 pedal and throttle systems
- Works with both drive-by-wire and cable throttle setups
- Includes GM-style accelerator pedal connector on cabin side
Comprehensive Sensor and System Integration
The LS550 harness comes pre-wired for a wide range of essential engine sensors, reducing installation time and ensuring accurate data collection for tuning and engine management.
- Electronic pedal and throttle body
- Throttle Position Sensor (TPS)
- 24X or 58X crank trigger
- Front and rear cam sync (1 and 4 tooth compatible)
- Flex fuel sensor (Continental sensor connector included)
- Fuel pressure and oil pressure sensors
- Coolant and intake air temperature sensors
- Additional inputs available for custom sensor wiring
Fuel System and Wideband O2 Support
Built to support advanced fueling strategies, this harness is ready for both high and low impedance injector setups and includes wideband O2 integration.
- Complete wiring for 8 sequential EV1 injectors
- Compatible with high impedance injectors
- Includes wiring for 2 FuelTech Peak and Hold Drivers for low impedance injectors
- Pre-configured for two FuelTech WB-O2 Nano conditioners
- Supports two Bosch LSU 4.2 wideband O2 sensors
- Flex fuel ready for ethanol content monitoring
Advanced Inputs and Outputs for Race Applications
Designed for serious performance builds, this harness includes expandable inputs and outputs for full control over engine and chassis functions.
- INPUTS connector supports up to 6 additional channels
- Ideal for driveshaft RPM, transbrake, suspension sensors, and more
- EXTRA OUTPUTS connector supports up to 8 additional outputs
- Supports boost control, nitrous stages, transbrake, gear shifting, and more
Integrated Power Distribution and Durability
Built with reliability in mind, this harness includes integrated power control and durable materials for long-term performance.
- Includes three 40A relays and fuses
- Main relay powers ECU, WB-O2 Nano, and sensors
- Second relay powers injectors and Peak and Hold drivers
- Third relay powers ignition coils
- Firewall grommet for clean routing and sealing
- Labeled connectors for easy installation
- Heat, moisture, and oil-resistant insulation
Whats Included
- 1 LS550 V8 Complete Harness
- 2 Peak and Hold Jumper Harnesses
- 1 LS550 8-way connector kit
- 1 LS550 10-way connector kit
- 1 LS550 12-way connector kit
- 1 Operation and Installation Guide
Features
- Complete plug and play LS swap harness
- Designed for FuelTech FT550 and FT550LITE ECUs
- Supports 24X and 58X LS crank systems
- Compatible with OEM LS ignition and throttle components
- Pre-wired for extensive engine sensor inputs
- Dual wideband O2 and flex fuel ready
- Expandable inputs and outputs for race functions
- Integrated relays, fuses, and power distribution
- Durable, heat and oil-resistant construction
Quick Specs
- Brand: FuelTech
- Product Type: Complete LS Wiring Harness
- Application: LS-based V8 engines
- ECU Compatibility: FuelTech FT550 and FT550LITE
- Injector Support: 8 EV1 injectors
- Trigger Compatibility: 24X and 58X
- Wideband Support: Dual WB-O2 Nano and Bosch LSU 4.2
- Expansion: Up to 6 inputs and 8 outputs
- Weight: 8 lbs 3 oz
- Part Number: 2002007265
FAQs
Is this harness truly plug and play for LS swaps?
Yes, this harness is specifically designed for plug and play LS engine swaps using FuelTech FT550 or FT550LITE ECUs, minimizing custom wiring.
Does this support both drive-by-wire and cable throttle setups?
Yes, the harness supports both electronic (drive-by-wire) and cable throttle configurations, offering flexibility for different LS builds.
Why Buy from Beefcake Racing?
Beefcake Racing is your go-to source for FuelTech ECU systems, LS swap solutions, and high-performance wiring. We help builders get their projects running faster with proven components and expert guidance.
Whether you're tackling a full LS swap or upgrading your standalone system, we provide fast shipping, real-world experience, and unmatched customer support.
Email: sales@beefcakeracing.com
Phone: 1-855-827-7223
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