{"product_id":"standard-ignition-s2481-ignition-knock-detonation-sensor-harness","title":"Standard Ignition S2481 Ignition Knock (Detonation) Sensor Harness","description":"\u003ch2\u003eIgnition Knock Sensor Harness for Nissan and Mercury\u003c\/h2\u003e\u003cp\u003eStandard Ignition S2481 is an ignition knock sensor harness built for direct-fit service on select Nissan and Mercury applications. It uses a 2-wire layout with female and male connectors, an oval connector shape, and weatherproof sealed construction to support a secure electrical connection in the engine bay.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eFits 1999-2004 Nissan Frontier, N\/A\u003c\/li\u003e\n\u003cli\u003eFits 2000-2004 Nissan Xterra, N\/A\u003c\/li\u003e\n\u003cli\u003eFits 1999-2002 Mercury Villager, N\/A\u003c\/li\u003e\n\u003cli\u003eFits 1999-2002 Nissan Quest, N\/A\u003c\/li\u003e\n\u003cli\u003eEPDM material for durable harness construction\u003c\/li\u003e\n\u003cli\u003e2-wire, 18-gauge design with blade terminals\u003c\/li\u003e\n\u003cli\u003eFemale + male connectors with 2 connector points\u003c\/li\u003e\n\u003cli\u003eWeatherproof sealed construction for protected connections\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Description\u003c\/h2\u003e\u003cp\u003eStandard Ignition S2481 is an ignition knock (detonation) sensor harness used to restore the electrical link between the knock sensor and the engine management system. The harness is built with EPDM insulation, 18-gauge wire, and blade-style terminals to support a clean connection in the ignition circuit. This part cross-references 241677B200 and EC2393 for the same application. Standard Ignition S2481 is a practical replacement for vehicles that need a sealed harness connection in the knock sensor circuit, including Nissan Frontier, Nissan Xterra, Nissan Quest, and Mercury Villager applications.\u003c\/p\u003e\u003ch2\u003eWhat It Helps Address\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eIntermittent knock sensor signal loss\u003c\/li\u003e\n\u003cli\u003eDamaged, brittle, or heat-aged harness insulation\u003c\/li\u003e\n\u003cli\u003eCorroded or loose connector terminals\u003c\/li\u003e\n\u003cli\u003eEngine warning lights related to detonation sensor circuit faults\u003c\/li\u003e\n\u003cli\u003eRough engine operation caused by poor sensor communication\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eVerify connector shape, terminal style, and wire count before installation. Route the harness away from hot exhaust components and moving parts, and inspect the mating connectors for corrosion or bent terminals before reconnecting. Confirm the vehicle application by year and model, especially on 1999-2004 Nissan Frontier, 2000-2004 Nissan Xterra, 1999-2002 Nissan Quest, and 1999-2002 Mercury Villager.\u003c\/p\u003e\u003ch2\u003eQuality Assurance\u003c\/h2\u003e\u003cp\u003eStandard Ignition S2481 is built as a weatherproof sealed replacement harness for ignition knock sensor service. Its EPDM construction and sealed connector design support dependable electrical continuity in demanding underhood conditions.\u003c\/p\u003e","brand":"Standard Ignition","offers":[{"title":"Default Title","offer_id":52820776943797,"sku":"FBHK-S2481","price":78.2,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/SI_S2481_Fro.jpg?v=1784528137","url":"https:\/\/www.partcatalog.com\/products\/standard-ignition-s2481-ignition-knock-detonation-sensor-harness","provider":"PartCatalog","version":"1.0","type":"link"}