{"product_id":"autolite-425-spark-plug","title":"Autolite 425 Spark Plug","description":"\u003ch2\u003eAutolite 425 Copper Resistor Spark Plug\u003c\/h2\u003e\u003cp\u003eThe Autolite 425 is a copper resistor spark plug built for OE-style fit, form, and function in a range of classic Volkswagen Beetle and Ford Escort applications. It is engineered for quick starts, smooth acceleration, and consistent ignition performance at a value-focused price point.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eCopper center electrode for dependable ignition response\u003c\/li\u003e\n\u003cli\u003e5000 ohm resistor design helps reduce electrical noise\u003c\/li\u003e\n\u003cli\u003eNickel center and ground electrode tip materials\u003c\/li\u003e\n\u003cli\u003eStandard regular center electrode design with a tapered ground electrode tip\u003c\/li\u003e\n\u003cli\u003eFlat seat, 14 mm thread diameter, 0.500 in. reach\u003c\/li\u003e\n\u003cli\u003ePre-gapped at 0.030 in. \/ 0.80 mm\u003c\/li\u003e\n\u003cli\u003eCeramic short insulator with stud terminal type\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eProduct Details\u003c\/h2\u003e\u003cp\u003eAutolite Copper Resistor Spark Plugs are built as OE-style replacements for foreign and domestic vehicles that call for this specification. Part number 425 uses a copper core center electrode, nickel tip materials, and a resistor configuration to support stable ignition performance and reduced radio-frequency interference. This part cross-references Champion Spark Plug 306 for the same application.\u003c\/p\u003e\u003cp\u003eCompatible With classic Volkswagen Beetle and Ford Escort applications, including Fits 1950-1978 Volkswagen Beetle, N\/A and Fits 1956-1961 Ford Escort, N\/A. The Autolite 425 is also listed for Fits 1979 Volkswagen Beetle, N\/A, making it a relevant choice for owners maintaining original-style ignition service on these vehicles.\u003c\/p\u003e\u003ch2\u003eCommon Issues This Part Can Address\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eHard starting caused by worn or fouled spark plugs\u003c\/li\u003e\n\u003cli\u003eRough idle from inconsistent spark delivery\u003c\/li\u003e\n\u003cli\u003eReduced throttle response during acceleration\u003c\/li\u003e\n\u003cli\u003eIgnition noise from a non-resistor plug setup\u003c\/li\u003e\n\u003cli\u003eMaintenance replacement for OE-style tune-up service\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eVerify thread diameter, reach, seat type, and gap before installation. This plug is pre-gapped at 0.030 in. \/ 0.80 mm, but the gap should still be checked against the vehicle specification before use. Confirm the stud terminal style matches the ignition lead connection and inspect the cylinder head threads for wear or contamination before tightening.\u003c\/p\u003e\u003ch2\u003eQuality Assurance\u003c\/h2\u003e\u003cp\u003eAutolite supplies ignition products to the automotive aftermarket and OE manufacturers, and the 425 is built to match OE-style requirements for the listed applications. Part number 425 is a practical replacement for service work on classic Volkswagen Beetle and Ford Escort ignition systems.\u003c\/p\u003e","brand":"Autolite","offers":[{"title":"Default Title","offer_id":51906952593589,"sku":"BBRQ-425","price":12.53,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/AB_425_Fro.jpg?v=1774987468","url":"https:\/\/www.partcatalog.com\/products\/autolite-425-spark-plug","provider":"PartCatalog","version":"1.0","type":"link"}