{"product_id":"timing-protection-module-for-mercury-mariner-v6-outboards-replaces-oem-857169t2-sierra-mpn-18-99265","title":"Sierra Timing Protection Module 18-99265, OEM 857169T2 Equivalent for Mercury Mariner V6 Outboards","description":"\u003cp\u003eThe Sierra 18-99265 Timing Protection Module is an electrical component built for Mercury Mariner V6 outboard engines, designed to safeguard the engine's ignition timing during operation. Housed in a blue aluminum enclosure, the module uses a transom-mount design and operates electrically, making it a direct fit for gasoline-fueled 4-stroke outboard installations. It is well suited for recreational boaters who rely on their outboard for fishing, cruising, and water sports, giving the ignition system a dependable layer of timing protection. At 0.8 pounds, the module is compact and straightforward to mount within the outboard's electrical housing during a repair or preventive replacement. Buyers replacing a worn or failed timing module can use the Sierra 18-99265 as a cross-reference to several OEM part numbers, simplifying the search for the correct replacement component. The aluminum housing is built to withstand the marine engine environment while protecting the internal electronics from vibration and heat. Whether restoring an aging V6 outboard to full working order or performing routine maintenance on the ignition system, this module is a targeted, application-specific part rather than a universal 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 18-99265\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Mercury Mariner V6 Outboard Engines\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.8 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e Blue\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Aluminum\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMounting Type:\u003c\/strong\u003e Transom Mount\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEngine Type:\u003c\/strong\u003e 4 Stroke\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperation Mode:\u003c\/strong\u003e Electric\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFuel Type:\u003c\/strong\u003e Gasoline\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Cross-Reference:\u003c\/strong\u003e 857169A2, 857169T1, 857169T2, R857169T2\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cp\u003eFits Mercury Mariner V6 outboard engines.\u003c\/p\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cp\u003e857169A2, 857169T1, 857169T2, R857169T2\u003c\/p\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat does the Sierra 18-99265 timing protection module do?\u003c\/strong\u003e It protects the ignition timing on Mercury Mariner V6 outboard engines, serving as an electrical safeguard component within the engine's ignition system.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill the 18-99265 fit my Mercury Mariner outboard?\u003c\/strong\u003e The Sierra 18-99265 is built for Mercury Mariner V6 outboard engines; it is not a universal part, so confirm your engine is a V6 Mercury Mariner model before ordering.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat OEM part numbers does the 18-99265 cross-reference to?\u003c\/strong\u003e It cross-references to OEM numbers 857169A2, 857169T1, 857169T2, and R857169T2, so any of these part numbers point to the same replacement application.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the timing protection module weigh?\u003c\/strong\u003e The Sierra 18-99265 weighs 0.8 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat material is the module housing made from?\u003c\/strong\u003e The housing is made from aluminum, finished in blue.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this an electric or manual component?\u003c\/strong\u003e The 18-99265 operates electrically and uses a transom-mount installation design.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat fuel type and engine cycle is the module designed for?\u003c\/strong\u003e It is designed for gasoline-fueled, 4-stroke outboard engines.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-99265 a genuine Sierra part or aftermarket?\u003c\/strong\u003e The 18-99265 is sold under the Sierra part number and is built as a direct cross-reference replacement for the listed OEM timing protection module numbers.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat boating activities is this module suited for?\u003c\/strong\u003e It is intended for recreational boating uses such as fishing, cruising, and water sports on Mercury Mariner V6 outboard-powered boats.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan I install the 18-99265 myself?\u003c\/strong\u003e The module mounts to the outboard's electrical housing using a transom-mount design, though installation should follow the engine's electrical system service procedures.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988440756443,"sku":"SIE-18-99265","price":365.59,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/CDI-144-7169_lg__01040.1558111563.500.750.jpg?v=1785188780","url":"https:\/\/www.goodvibesmarina.com\/products\/timing-protection-module-for-mercury-mariner-v6-outboards-replaces-oem-857169t2-sierra-mpn-18-99265","provider":"Good Vibes Marina","version":"1.0","type":"link"}