Michigan Motorsports 24-In LS 3-Wire Extension Harness | TPS & Sensor Extender | LS1/LSX/LQ4/LQ9 | Holley 554-102 Compatible

Overview

The Michigan Motorsports 24 inch LS 3‑Wire Extension Harness is designed for LS swaps, EFI conversions, and custom builds that require extra reach to throttle position, oil pressure, or coolant pressure sensors. Built to OEM specifications, this plug‑and‑play harness avoids cutting or splicing while preserving signal integrity. Compatible with LS1, LSX, LQ4, LQ9, and other Gen III/IV LS applications, it helps you relocate sensors, reroute wiring for turbo or supercharger setups, and pair with Holley EFI sensors such as the 554‑102.

Key Benefits

• Direct Fit for LS TPS & Pressure Sensors using OEM‑style connectors for a precise, factory feel.
• Extended 24 inch length offers flexible routing in tight engine bays and swapped engine layouts.
• Plug‑and‑Play installation keeps factory wiring integrity with reliable signal transfer.
• Holley EFI sensor compatibility supports accurate readings with Holley 554‑102 transducers.
• Durable and heat‑resistant construction designed to endure high heat and vibration in performance environments.

Practical Uses and Scenarios

• Relocate sensors during LS swaps or EFI conversions for a cleaner under‑hood layout.
• Route sensor wiring around turbo or supercharger installations without sacrificing signal quality.
• Maintain a neat, professional installation with OEM connectors and tidy harness management.
• Pair with compatible pressure sensors for dependable monitoring in high‑demand builds.

Durability and Compatibility

engineered to withstand the demands of modern performance engines, the 24 inch LS extension harness uses robust wiring and high‑quality connectors to maintain performance in harsh conditions. Its compatibility with Holley 554‑102 sensors adds a layer of versatility for EFI enthusiasts, while the plug‑and‑play nature reduces install time and risk. This is a practical upgrade for builders seeking a cleaner, more adaptable sensor wiring solution without compromising signal accuracy.