{"product_id":"standard-ignition-fj1421-fuel-injector","title":"Standard Ignition FJ1421 Fuel Injector","description":"\u003ch2\u003eOverview of Standard Ignition Fuel Injector FJ1421\u003c\/h2\u003e\u003cp\u003eThe Standard Ignition FJ1421 fuel injector is designed specifically for Lexus RX350, RX450h, and RX450hL models. This new GDI injector features a top feed system and includes O-rings for a secure and leak-free installation.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eCompatible with Lexus RX350, RX450h, RX450hL\u003c\/li\u003e\n\u003cli\u003eNew GDI fuel injector with part number FJ1421\u003c\/li\u003e\n\u003cli\u003eTop feed system type for efficient fuel delivery\u003c\/li\u003e\n\u003cli\u003eIncludes O-rings for proper sealing\u003c\/li\u003e\n\u003cli\u003eBlack and silver finish for durability\u003c\/li\u003e\n\u003cli\u003eFemale blade terminals with two connections\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Product Description\u003c\/h2\u003e\u003cp\u003eThe Standard Ignition FJ1421 fuel injector is engineered to meet the fuel delivery requirements of Lexus RX350, RX450h, and RX450hL vehicles. This new injector utilizes a Gasoline Direct Injection (GDI) design, which allows for precise fuel atomization and improved combustion efficiency. The top feed system ensures optimal fuel flow, while the included O-rings provide a tight seal to prevent leaks. The injector terminals are female blade type with two connections, ensuring compatibility with the vehicle’s wiring harness. The black and silver finish adds corrosion resistance and durability under engine bay conditions.\u003c\/p\u003e\u003ch2\u003eCommon Applications and Issues Addressed\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eRestores proper fuel delivery in Lexus RX350 and RX450h models\u003c\/li\u003e\n\u003cli\u003eResolves rough idling or engine misfires caused by faulty injectors\u003c\/li\u003e\n\u003cli\u003eEliminates poor fuel economy related to injector malfunction\u003c\/li\u003e\n\u003cli\u003eFixes hard starting issues linked to inconsistent fuel flow\u003c\/li\u003e\n\u003cli\u003ePrevents fuel leaks with included O-rings for a secure fit\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eWhen installing the Standard Ignition FJ1421 fuel injector, ensure the O-rings are properly lubricated to avoid damage during insertion. Verify the top feed orientation matches the vehicle’s fuel rail setup. Confirm the female blade terminals align correctly with the wiring harness connectors. It is recommended to inspect the fuel rail and surrounding components for wear or damage before installation. Follow all manufacturer torque specifications and safety precautions during replacement.\u003c\/p\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eStandard Ignition manufactures the FJ1421 fuel injector to meet OEM specifications for fit, form, and function. Each injector undergoes rigorous testing to ensure reliable performance and durability. This product comes with a limited warranty covering defects in materials and workmanship, providing confidence in its long-term operation within Lexus RX350, RX450h, and RX450hL vehicles.\u003c\/p\u003e","brand":"Standard Ignition","offers":[{"title":"Default Title","offer_id":44687614214325,"sku":"FBHK-FJ1421","price":367.14,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/SI_FJ1421_Fro.jpg?v=1775080376","url":"https:\/\/www.partcatalog.com\/products\/standard-ignition-fj1421-fuel-injector","provider":"PartCatalog","version":"1.0","type":"link"}