{"product_id":"autolite-ar33-spark-plug","title":"Autolite AR33 Spark Plug","description":"\u003ch2\u003eAutolite AR33 Racing Spark Plug\u003c\/h2\u003e\u003cp\u003eThe Autolite AR33 is a high-performance racing spark plug built with a non-resistor design for strong ignition response. It uses OE-style form, fit, and function while adding racing-focused construction for demanding secondary ignition applications.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eHigh Performance Racing Non-Resistor Spark Plug\u003c\/li\u003e\n\u003cli\u003eCopper center electrode core with nickel tip materials\u003c\/li\u003e\n\u003cli\u003eTapered ground electrode tip and tapered seat design\u003c\/li\u003e\n\u003cli\u003ePre-gapped to 0.034 in. \/ 0.90 mm\u003c\/li\u003e\n\u003cli\u003eCeramic insulator with stud terminal connection\u003c\/li\u003e\n\u003cli\u003e18 mm thread diameter, 0.433 in. reach, 13\/16 in. hex\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Description\u003c\/h2\u003e\u003cp\u003eAutolite AR33 spark plugs are engineered for performance-oriented ignition systems and are used in racing applications where consistent spark delivery matters. The copper core and nickel electrode materials support reliable conductivity, while the tapered ground electrode design and non-resistor construction suit high-output ignition setups. This Autolite spark plug is also positioned as an OE-style replacement, making it a practical choice for drivers who want a performance plug with familiar fitment characteristics. Fits 1966 AC 427, N\/A. This part cross-references Champion Spark Plug 409 and Standard Ignition BF22 for the same application.\u003c\/p\u003e\u003ch2\u003eWhat It Helps Address\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eWeak or inconsistent spark output in performance ignition systems\u003c\/li\u003e\n\u003cli\u003eNeed for a non-resistor plug in racing-focused setups\u003c\/li\u003e\n\u003cli\u003eReplacement of worn spark plugs with OE-style dimensions\u003c\/li\u003e\n\u003cli\u003eIgnition service on a 1966 AC 427, N\/A\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eVerify thread diameter, reach, seat type, and terminal style before installation. The pre-gap is set at 0.034 in. \/ 0.90 mm, but final gap should always be checked against the engine specification. Use the correct torque procedure for tapered-seat spark plugs and confirm the ignition system is configured for a non-resistor plug. Fits 1966 AC 427, N\/A.\u003c\/p\u003e\u003ch2\u003eQuality Assurance\u003c\/h2\u003e\u003cp\u003eAutolite supplies ignition products to the automotive aftermarket and original equipment manufacturers, and this AR33 follows OE form, fit, and function expectations for the listed application.\u003c\/p\u003e","brand":"Autolite","offers":[{"title":"Default Title","offer_id":53657704825013,"sku":"BBRQ-AR33","price":13.45,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/AB_AR33_Fro.jpg?v=1793601187","url":"https:\/\/www.partcatalog.com\/products\/autolite-ar33-spark-plug","provider":"PartCatalog","version":"1.0","type":"link"}