{"product_id":"distributor-cap-for-ford-gm-v-8-prestolite-conventional-ignition-replaces-mercury-392-9766-sierra-18-5352","title":"Sierra 18-5352 Distributor Cap, Replaces 41058, Fits Ford \u0026 GM V-8 Prestolite Ignition","description":"\u003cp\u003eThe Sierra 18-5352 is a marine distributor cap built for Ford and GM V-8 engines equipped with a Prestolite conventional ignition system using a screw hold-down cap. It is a fit-specific ignition component that seals and protects the distributor's internal contacts while directing spark to each cylinder in firing order, making it a routine tune-up and ignition-repair replacement part for boat owners and marine mechanics.\u003c\/p\u003e\u003cp\u003eThe cap is constructed of machined aluminum and stainless steel with a black finish, giving it corrosion resistance for the marine environment while maintaining a precise, twist-on fit over the distributor housing. It measures 5.5 x 4.75 x 3.5 inches and weighs 0.5 pounds. Each Sierra ignition part is manufactured to meet or exceed the specifications of the original equipment part it replaces, and the 18-5352 cross-references directly to OEM part number 41058.\u003c\/p\u003e\u003cp\u003eThis is a fit-specific part intended for Ford and GM V-8 marine engines with Prestolite conventional (screw hold-down) ignition systems. Because distributor caps vary by ignition type and hold-down style, confirm your engine's ignition configuration before ordering to ensure proper fit.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Sierra\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 18-5352\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Distributor Cap\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Aluminum, Stainless Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e Black\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExterior Finish:\u003c\/strong\u003e Machined\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClosure Type:\u003c\/strong\u003e Twist-On\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eItem Dimensions:\u003c\/strong\u003e 5.5 x 4.75 x 3.5 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.5 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncluded Components:\u003c\/strong\u003e Distributor Cap\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUnit Count:\u003c\/strong\u003e 1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEngine Compatibility:\u003c\/strong\u003e Ford and GM V-8 engines with Prestolite conventional ignition (screw hold-down cap)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 030999318961\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eFord V-8 marine engines with Prestolite conventional ignition (screw hold-down cap)\u003c\/li\u003e\n\u003cli\u003eGM V-8 marine engines with Prestolite conventional ignition (screw hold-down cap)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e41058\u003c\/li\u003e\n\u003cli\u003e392-9766\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat does the Sierra 18-5352 distributor cap fit?\u003c\/strong\u003e The Sierra 18-5352 is designed for Ford and GM V-8 marine engines equipped with a Prestolite conventional ignition system that uses a screw hold-down cap, not a clip-on style cap.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-5352 the same as OEM part 41058?\u003c\/strong\u003e Yes, the 18-5352 is a direct cross-reference replacement for OEM part number 41058, manufactured to meet or exceed the original part's specifications.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat material is the 18-5352 distributor cap made from?\u003c\/strong\u003e It is made of machined aluminum and stainless steel with a black finish, giving it corrosion resistance suited to marine ignition systems.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow does the cap attach to the distributor?\u003c\/strong\u003e The 18-5352 uses a screw hold-down design rather than spring clips, so it is intended for distributors built for a screw-mounted cap.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat are the dimensions and weight of the 18-5352?\u003c\/strong\u003e The Sierra 18-5352 distributor cap measures 5.5 x 4.75 x 3.5 inches and weighs 0.5 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the 18-5352 come with a rotor?\u003c\/strong\u003e No, the package includes one distributor cap only; the rotor is a separate Sierra part.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill this cap work on a GM small block V-8 with electronic ignition?\u003c\/strong\u003e The 18-5352 is built for Prestolite conventional ignition with a screw hold-down cap, so it is not intended for electronic ignition distributor housings.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-5352 genuine Sierra or a generic aftermarket part?\u003c\/strong\u003e It is a genuine Sierra-branded marine ignition part, engineered as a direct replacement for the original Prestolite-style distributor cap.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat OEM numbers cross-reference to the 18-5352?\u003c\/strong\u003e The Sierra 18-5352 distributor cap replaces OEM part number 41058 and corresponds to OE number 392-9766.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow do I know if I need this cap versus a different Sierra distributor cap?\u003c\/strong\u003e The 18-5352 is specific to Ford and GM V-8 engines with Prestolite conventional, screw hold-down ignition; other Sierra caps in the same family, such as 18-5361 or 18-5354, are built for different ignition systems, so confirm your engine's ignition type before ordering.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat color and finish does the 18-5352 have?\u003c\/strong\u003e The cap has a black body with a machined exterior finish on its aluminum and stainless steel construction.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the 18-5352 covered by a warranty?\u003c\/strong\u003e Yes, the Sierra 18-5352 distributor cap is covered under Sierra's standard limited warranty.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988209545435,"sku":"SIE-18-5352","price":28.88,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/Untitled-1__34017.1753840678.500.750.jpg?v=1785188006","url":"https:\/\/www.goodvibesmarina.com\/products\/distributor-cap-for-ford-gm-v-8-prestolite-conventional-ignition-replaces-mercury-392-9766-sierra-18-5352","provider":"Good Vibes Marina","version":"1.0","type":"link"}