{"product_id":"sierra-18-2193-rear-engine-mount-replaces-mercury-99297a1-fits-mercruiser-120-140-320-hp-350-454-magnum-alpha-bravo","title":"Sierra 18-2193 Rear Engine Mount, Replaces Mercury Marine 99297A1, Fits Alpha and Bravo Drives","description":"\u003cp\u003eThe Sierra 18-2193 Rear Engine Mount is a machined rear engine mount built to support MerCruiser sterndrive engines through the rear of the flywheel housing. It is engineered as a direct replacement for the OEM rear mount, providing the correct mounting interface for engines paired with Alpha and Bravo drives. Rear engine mounts absorb engine vibration and torque loading while holding the block securely in place at the transom end, so a worn, cracked, or collapsed mount can lead to excess vibration, misalignment, or drivetrain stress if left unaddressed.\u003c\/p\u003e\u003cp\u003eThis mount is manufactured with a machined exterior finish for a precise, consistent fit against the mounting hardware. It is designed to fit MCM flywheel housings used with Alpha and Bravo drives, and covers a broad range of MerCruiser applications including 120\/140 HP engines from S\/N 6229717 and up, all 224 CID blocks, 200, 228, 230, 260, 300, and 320 HP engines, and all 350-454 Magnum engines. Sierra parts are backed by Sierra's customer satisfaction warranty, giving boat owners a dependable aftermarket option when the original engine mount needs replacement.\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 18-2193\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCategory:\u003c\/strong\u003e Mercruiser Gearcase \u0026amp; Drive Parts\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 030999562517\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.16 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Dimensions:\u003c\/strong\u003e 0.39 x 0.39 x 0.39 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExterior Finish:\u003c\/strong\u003e Machined\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrive Compatibility:\u003c\/strong\u003e MCM flywheel housing with Alpha and Bravo drives\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Cross Reference:\u003c\/strong\u003e 33149, 99297A1, 99297A2\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e120\/140 HP, S\/N 6229717 \u0026amp; up\u003c\/li\u003e\n\u003cli\u003eAll 224 CID blocks\u003c\/li\u003e\n\u003cli\u003eAll 898, 200, 228, 230, 260, 300 \u0026amp; 320 HP engines\u003c\/li\u003e\n\u003cli\u003eAll 350-454 Magnum engines\u003c\/li\u003e\n\u003cli\u003eMCM flywheel housing with Alpha and Bravo drives\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e33149\u003c\/li\u003e\n\u003cli\u003e99297A1\u003c\/li\u003e\n\u003cli\u003e99297A2\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat engines does the Sierra 18-2193 rear engine mount fit?\u003c\/strong\u003e The Sierra 18-2193 fits 120\/140 HP engines from S\/N 6229717 and up, all 224 CID blocks, 200, 228, 230, 260, 300, and 320 HP engines, and all 350-454 Magnum engines with an MCM flywheel housing paired with Alpha or Bravo drives.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the 18-2193 mount compatible with Alpha and Bravo drives?\u003c\/strong\u003e Yes, the Sierra 18-2193 rear engine mount is designed for MCM flywheel housings used with both Alpha and Bravo drives.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhich OEM part numbers does the Sierra 18-2193 replace?\u003c\/strong\u003e This rear engine mount replaces OEM numbers 33149, 99297A1, and 99297A2.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-2193 the same as Mercury Marine 99297A1?\u003c\/strong\u003e The Sierra 18-2193 is an aftermarket equivalent to Mercury Marine 99297A1 and is built to replace that OEM part directly.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat finish does the 18-2193 rear engine mount have?\u003c\/strong\u003e It has a machined exterior finish for a precise fit at the mounting interface.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the Sierra 18-2193 rear engine mount weigh?\u003c\/strong\u003e The Sierra 18-2193 weighs 0.16 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat are the dimensions of the 18-2193 rear engine mount?\u003c\/strong\u003e The rear engine mount measures 0.39 x 0.39 x 0.39 inches.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes a worn rear engine mount need to be replaced?\u003c\/strong\u003e Yes, a worn, cracked, or collapsed rear engine mount like the position filled by the Sierra 18-2193 should be replaced to prevent excess vibration and misalignment at the flywheel housing.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-2193 covered by a warranty?\u003c\/strong\u003e The Sierra 18-2193 rear engine mount is covered under Sierra's customer satisfaction warranty.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the 18-2193 fit 224 CID block engines?\u003c\/strong\u003e Yes, the Sierra 18-2193 rear engine mount fits all 224 CID blocks.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the 18-2193 fit 350-454 Magnum engines?\u003c\/strong\u003e Yes, this rear engine mount fits all 350-454 Magnum engines.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988105441499,"sku":"SIE-18-2193","price":44.94,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-2193_lg__68258.1558122963.500.750.jpg?v=1785188494","url":"https:\/\/www.goodvibesmarina.com\/products\/sierra-18-2193-rear-engine-mount-replaces-mercury-99297a1-fits-mercruiser-120-140-320-hp-350-454-magnum-alpha-bravo","provider":"Good Vibes Marina","version":"1.0","type":"link"}