{"product_id":"michigan-motorsports-ls-3-wire-extension-harness-24in-oem-style-metripack-for-tps-oil-coolant","title":"Michigan Motorsports LS 3-Wire Extension Harness 24in OEM-style Metripack for TPS, Oil \u0026 Coolant","description":"\u003cp\u003e\u003cstrong\u003eThe Michigan Motorsports 24\" LS 3-wire extension harness gives you a factory-style, plug-and-play way to lengthen TPS, oil pressure, and coolant pressure sensor leads for Gen III\/IV LS engines.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eWhen relocating sensors, installing forced-induction hardware, or finishing an LS swap, running stock-length pigtails can force awkward routing, splices, or unreliable aftermarket adapters. This 24-inch harness was engineered to match OEM connectors and wiring standards so you can extend throttle position (TPS), oil, and coolant pressure sensor circuits without cutting factory wires or compromising signal reliability. It’s compatible with common LS platforms including LS1, LSX, LQ4, and LQ9 and pairs well with popular aftermarket sensors such as Holley 554-102.\u003c\/p\u003e\n\n\u003ch3\u003eHow does this harness preserve sensor signal accuracy?\u003c\/h3\u003e\n\u003cp\u003eThe harness uses high-quality conductors and OEM-style Metripack connectors to maintain continuity and shielding similar to factory wiring. That prevents voltage drop, noise, or loose connections that can lead to erratic readings. You’ll retain the original electrical characteristics important for ECU and gauge inputs.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eOEM-style Metripack connectors for secure mating\u003c\/li\u003e\n  \u003cli\u003eAppropriate wire gauge to minimize voltage loss\u003c\/li\u003e\n  \u003cli\u003eCrimped and sealed terminations for stable signals\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill this fit my LS swap or EFI conversion setup?\u003c\/h3\u003e\n\u003cp\u003eYes — the harness was designed to serve common Gen III\/IV LS platforms and is especially useful in swaps or custom engine bays. The 24-inch length provides the extra reach needed for relocating sensors, routing around turbo chargepipes, or tucking wiring behind manifolds. No cutting, soldering, or improvised splices are required for correct installations.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eDirect fit for LS1, LSX, LQ4, LQ9 and similar engines\u003c\/li\u003e\n  \u003cli\u003eExtra length for tight or crowded engine compartments\u003c\/li\u003e\n  \u003cli\u003ePlug-and-play installation preserves factory wiring integrity\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eIs the harness durable enough for high-performance environments?\u003c\/h3\u003e\n\u003cp\u003eThis extension harness is built with heat-resistant insulation and rugged connectors designed to handle vibration and elevated engine-bay temperatures. The materials resist abrasion and degradation so you won’t need frequent replacements even on track or in forced-induction builds. It’s made to deliver long-term reliability under real-world driving conditions.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eHigh-temperature rated insulation for engine-bay use\u003c\/li\u003e\n  \u003cli\u003eVibration-resistant connector design to prevent loosening\u003c\/li\u003e\n  \u003cli\u003eSealed crimps to keep out moisture and contaminants\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eCan I use this with Holley pressure sensors like the 554-102?\u003c\/h3\u003e\n\u003cp\u003eYes — the harness was specified to work cleanly with Holley-style pressure transducers such as the 554-102. Mating compatibility ensures you get dependable readings without adapter hassles. Installing with compatible sensors gives a factory-like appearance and consistent performance.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eConfirmed compatibility with Holley 554-102 pressure transducers\u003c\/li\u003e\n  \u003cli\u003eNo adapter required when matching connector styles\u003c\/li\u003e\n  \u003cli\u003eSaves installation time and reduces wiring clutter\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho this harness is for: Builders, tuners, and DIY mechanics performing LS swaps, EFI upgrades, or forced-induction installs who want a clean, reliable way to move or lengthen TPS, oil, and coolant pressure sensor leads. It suits anyone aiming to avoid cutting factory wiring, simplify routing in crowded engine bays, or ensure consistent sensor performance with Holley and other compatible transducers. If you need OEM-style connections, heat-resistant wiring, and a 24-inch reach for Gen III\/IV LS applications, this Michigan Motorsports extension harness is a practical, long-lasting solution.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Will this extension harm TPS or pressure sensor readings?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: No — it uses OEM-style connectors and appropriate wire gauge to preserve signal integrity and avoid voltage drop.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Do I need to cut factory wires to install this harness?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: No — it’s plug-and-play with Metripack connectors, so no splicing or wire cutting is required for compatible sensors.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Michigan Motorsports","offers":[{"title":"Default Title","offer_id":48084310917278,"sku":"B07TLZC8FK","price":33.48,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/michigan-motorsports-front-packaging-harness.jpg?v=1785849558","url":"https:\/\/northtrailauto.ca\/products\/michigan-motorsports-ls-3-wire-extension-harness-24in-oem-style-metripack-for-tps-oil-coolant","provider":"North Trail Auto","version":"1.0","type":"link"}