HT-186500 Nexus Rebel LS Terminated Harness for Nexus Rebel LS ECU

Name: HT-186500 Nexus Rebel LS Terminated Harness for Nexus Rebel LS ECU
Brand: HALTECH
SKU: 484-HT-186500
Price: 945.00 USD
Availability: InStock

^$945⁰⁰

Ships on Sep 03, 2026

Lowest Price Guarantee

Main Harness

Nexus Rebel LS Terminated Harness

For Haltech HT-220201 or HT-220204

Gen III LS Cable Throttle or Gen IV LS Drive By Wire

Includes:

Terminated Harness
Connectors & Pins for Spare Inputs/Outputs
2 & 4 Pin Alternator Adapter Harnesses

Rebel LS Wiring Diagram
Haltech HT-186500 Nexus Rebel LS Terminated Harness Features:
- Nexus Rebel LS ECU connectors
- Terminated connections for both the engine bay and cabin
- Connection to Haltech CAN devices (e.g., dash displays, keypads, etc.)
- Connection to sensors (e.g., crank, cam, MAP, temperature, fluid pressure, position, speed, etc.)
- Bosch LSU 4.9 wideband lambda sensor control
- Two Gen IV style knock sensor connectors
- Direct connection to the OEM ignition sub-harness
- Connection to 8x injectors (refer to sub-harness options)
- Connections for thermofan and fuel pump control
- Compatibility with DBW or Cable throttle systems (refer to adapter options)
- Connection for alternator control
- Connection for transmission wiring
- Spare high current output (25A)
- Spare inputs and outputs

A New Generation of Engine Management

Haltech Nexus Rebel LS Engine Management Systems offers additional functionality beyond simply controlling your GM Gen III or IV LS engine. It is an engine control unit, a wideband O2 controller, a data logger, and a Wi-Fi module all integrated into a single unit.

Part TypeWiring Harness

Product LineHaltech Nexus Rebel Engine Management Systems for GM Gen III/IV LS Engines

BrandHALTECH

Package Height4.0

Package Width12.0

Package Length12.0

Weight6.61 PG

Part CategoryPerformance Parts

Engine ManufacturerGM Gen III/IV LS

QuantitySold individually

Connectors IncludedYes

Part FitmentSemi Universal