{"product_id":"sierra-18-5403-ignition-rotor-for-prestolite-7013-distributor-fits-ford-gm-6-8-cyl-replaces-mercruiser-392-9089-volvo-3853801","title":"Sierra 18-5403 Ignition Rotor for GM 6 and 8 Cylinder Engines with Prestolite Distributors, Replaces Mercury Marine 392-9089","description":"\u003cp\u003eThe Sierra 18-5403 is an ignition rotor engineered for GM 6 and 8 cylinder marine engines equipped with Prestolite conventional ignition distributors. The rotor mounts inside the distributor cap and rotates with the distributor shaft, directing the high-voltage spark from the coil to the correct spark plug wire terminal in firing order. A precise, machined exterior finish keeps electrical contact consistent, which supports reliable spark delivery and smoother engine performance during tune-ups or ignition system rebuilds.\u003c\/p\u003e\u003cp\u003eThis rotor is designed to work with Prestolite distributor numbers IBM-7011, IBM-7013, and IBM-7014A, covering GM 6 cylinder 3.8L engines as well as GM 8 cylinder 305, 350, and 454 cubic inch engines across the model years listed below. It is built as a direct equivalent to the original equipment rotor, meeting or exceeding the specifications of the parts it replaces, so it installs in place of the OEM component without modification. Each Sierra part is backed by Sierra's industry-leading customer satisfaction warranty.\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 18-5403\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Ignition Rotor\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible Distributors:\u003c\/strong\u003e Prestolite IBM-7011, IBM-7013, IBM-7014A\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible Engines:\u003c\/strong\u003e GM 6 and 8 cylinder engines with Prestolite conventional ignition\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible Model Years:\u003c\/strong\u003e 1976-82, 1983-88, 1984-88 (by engine, see Fitment)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 030999319180\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.03 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Dimensions:\u003c\/strong\u003e 5 x 4 x 1.25 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExterior Finish:\u003c\/strong\u003e Machined\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e1984-88, 6 cylinder, 3.8L engine, Distributor No. IBM-7014A\u003c\/li\u003e\n\u003cli\u003e1976-82, 8 cylinder, 305, 350, 454 engine, Distributor No. IBM-7011\u003c\/li\u003e\n\u003cli\u003e1983-88, 8 cylinder, 305, 350, 454 engine, Distributor No. IBM-7013\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eE65-0013\u003c\/li\u003e\n\u003cli\u003e41074\u003c\/li\u003e\n\u003cli\u003e41089\u003c\/li\u003e\n\u003cli\u003e71060\u003c\/li\u003e\n\u003cli\u003e71130\u003c\/li\u003e\n\u003cli\u003e9-29203\u003c\/li\u003e\n\u003cli\u003e9-29214\u003c\/li\u003e\n\u003cli\u003e392-9089\u003c\/li\u003e\n\u003cli\u003e392-9089T\u003c\/li\u003e\n\u003cli\u003e392-9767\u003c\/li\u003e\n\u003cli\u003e9089Q\u003c\/li\u003e\n\u003cli\u003eFI6900186\u003c\/li\u003e\n\u003cli\u003eFI6900190\u003c\/li\u003e\n\u003cli\u003e3853801\u003c\/li\u003e\n\u003cli\u003e982880\u003c\/li\u003e\n\u003cli\u003eR103004\u003c\/li\u003e\n\u003cli\u003e841907\u003c\/li\u003e\n\u003cli\u003e855845\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat engines does the Sierra 18-5403 rotor fit?\u003c\/strong\u003e The 18-5403 fits GM 6 cylinder 3.8L engines and GM 8 cylinder 305, 350, and 454 cubic inch engines that use a Prestolite conventional ignition distributor.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhich distributor numbers is this rotor designed for?\u003c\/strong\u003e This rotor is built for Prestolite distributor numbers IBM-7011, IBM-7013, and IBM-7014A.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat model years does the 18-5403 rotor cover?\u003c\/strong\u003e Coverage depends on the engine: 1984-88 for the 6 cylinder 3.8L engine on distributor IBM-7014A, 1976-82 for the 8 cylinder 305, 350, and 454 engines on distributor IBM-7011, and 1983-88 for those same 8 cylinder engines on distributor IBM-7013.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-5403 a direct replacement for the OEM rotor?\u003c\/strong\u003e Yes, the 18-5403 is designed to meet or exceed the original equipment rotor it replaces and installs in the same position without modification.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat OEM part numbers does the 18-5403 rotor cross-reference?\u003c\/strong\u003e It replaces OEM numbers including Mercury Marine 392-9089, 392-9089T, 392-9767, 9089Q, Crusader 41074, 41089, OMC 982880, Volvo Penta 3853801, 841907, 855845, Pleasurecraft R103004, GLM 71060, 71130, Mallory 9-29203, 9-29214, CDI E65-0013, and Mercruiser FI6900186, FI6900190.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat are the dimensions and weight of this rotor?\u003c\/strong\u003e The 18-5403 measures 5 x 4 x 1.25 inches and weighs 0.03 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the exterior finish on the 18-5403 rotor?\u003c\/strong\u003e The 18-5403 has a machined exterior finish for consistent electrical contact inside the distributor cap.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes this rotor work with Ford engines?\u003c\/strong\u003e No, the fitment data for the 18-5403 covers GM 6 and 8 cylinder engines only; Ford applications use a different Sierra rotor part number.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-5403 covered under warranty?\u003c\/strong\u003e Yes, the 18-5403 rotor is covered under Sierra's customer satisfaction warranty, the same coverage applied across all Sierra parts.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat function does the 18-5403 rotor perform in the ignition system?\u003c\/strong\u003e It mounts on the distributor shaft and rotates to direct high-voltage spark from the ignition coil to each spark plug wire terminal in the correct firing order.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988212953307,"sku":"SIE-18-5403","price":8.05,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/Untitled-1__31522.1753840680.500.750.jpg?v=1785188940","url":"https:\/\/www.goodvibesmarina.com\/products\/sierra-18-5403-ignition-rotor-for-prestolite-7013-distributor-fits-ford-gm-6-8-cyl-replaces-mercruiser-392-9089-volvo-3853801","provider":"Good Vibes Marina","version":"1.0","type":"link"}