{"product_id":"skp-skfj503-fuel-injector","title":"SKP SKFJ503 Fuel Injector","description":"\u003ch2\u003eFuel Injector Overview\u003c\/h2\u003e\u003cp\u003eThis SKP fuel injector is a brand-new aftermarket replacement built to restore proper fuel delivery and engine performance. It is engineered to exceed OEM specifications and is a direct fit for return-style fuel systems on a wide range of Chevrolet, GMC, and related applications.\u003c\/p\u003e\u003cp\u003ePart number SKFJ503 is a fitment-focused replacement for vehicles that use a fuel return line. For the correct application, verify that your system is not returnless before ordering. SKFJ503 is also cross-referenced to Standard Ignition FJ503 for the same application.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eBrand-new aftermarket fuel injector for fuel injection service\u003c\/li\u003e\n\u003cli\u003eEngineered to exceed OEM specifications\u003c\/li\u003e\n\u003cli\u003eFits return-style fuel systems with a fuel return line\u003c\/li\u003e\n\u003cli\u003eIncludes bracket, seal, and O-ring for the listed applications\u003c\/li\u003e\n\u003cli\u003eDirect replacement for many Chevrolet, GMC, and Isuzu applications\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Description\u003c\/h2\u003e\u003cp\u003eSKFJ503 is intended for return-fuel-system applications across a broad range of trucks, vans, and utility vehicles, including Chevrolet Express 1500, Chevrolet Silverado 1500, and GMC Sierra 1500. It also fits older platforms such as Chevrolet S10, GMC Sonoma, Chevrolet Astro, and GMC Safari, along with several full-size and commercial applications. The injector is specified for vehicles with a fuel return line and does not fit returnless fuel systems.\u003c\/p\u003e\u003cp\u003eAs a fuel injector, this part meters fuel into the engine to support proper combustion, throttle response, and drivability. When the original injector is restricted, leaking, or electrically inconsistent, replacement with SKFJ503 can restore normal fuel delivery on the listed Chevrolet and GMC applications. Part number SKFJ503 should be matched carefully to the fuel system design before installation.\u003c\/p\u003e\u003ch2\u003eWhat It Is Used For\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eHard starting caused by poor fuel delivery\u003c\/li\u003e\n\u003cli\u003eRough idle from a restricted or leaking injector\u003c\/li\u003e\n\u003cli\u003eLoss of power under load\u003c\/li\u003e\n\u003cli\u003eFuel trim issues related to injector performance\u003c\/li\u003e\n\u003cli\u003eDriveability problems on return-style fuel systems\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes\u003c\/h2\u003e\u003cp\u003eConfirm fuel system type before installation. This injector is for return-style systems with a fuel return line and is not for returnless systems. Verify the vehicle application, connector style, and mounting requirements against the original part before service. Use the listed fitment notes to confirm compatibility on Chevrolet Silverado 1500, GMC Sierra 1500, and other supported applications.\u003c\/p\u003e\u003ch2\u003eQuality Assurance\u003c\/h2\u003e\u003cp\u003eSKP states that this aftermarket fuel injector is engineered to exceed OEM specifications for restored engine power and efficiency. Cross-reference part number FJ503 may be used for comparison during catalog verification.\u003c\/p\u003e","brand":"SKP","offers":[{"title":"Default Title","offer_id":53540925767861,"sku":"GQLW-SKFJ503","price":196.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/5K_SKFJ503_Fro.jpg?v=1792214988","url":"https:\/\/www.partcatalog.com\/products\/skp-skfj503-fuel-injector","provider":"PartCatalog","version":"1.0","type":"link"}