{"product_id":"outdrive-gasket-set-for-mercruiser-e-h-tr-trs-drives-replaces-oem-27-54014a1","title":"Sierra Outdrive Gasket Set 18-2620 for MerCruiser TR-TRS Drives, Replaces 27-54014A1","description":"\u003cp\u003eThe Sierra 18-2620 Outdrive Gasket Set is a complete gasket kit engineered for MerCruiser TR and TRS stern drives, serial number 4794900 and up, specifically for drive housings equipped with an oil reservoir check valve. This set also fits 215E and 215H drive applications. It is designed to restore a proper seal at the outdrive housing during a rebuild or service job, preventing water intrusion and lubricant leakage that can lead to gear housing damage. As a direct cross-reference to Mercury Marine part numbers 27-54014A1 and 27-54014Q1, it allows technicians and boat owners to service their outdrive without hunting down original manufacturer parts. Every gasket in the set is sized and shaped to match the factory fit points on the applicable MerCruiser drive housing, so installation follows the same steps as the original equipment. Because outdrive housings vary between drive models and serial ranges, confirming your drive's serial number and check valve configuration before ordering helps ensure the correct gasket set is installed. This set is sold as a single package covering the outdrive housing service points addressed by part number 18-2620.\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 18-2620\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Outdrive Gasket Set\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFitment:\u003c\/strong\u003e MerCruiser TR and TRS drives, serial number 4794900 and up\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAlso Fits:\u003c\/strong\u003e 215E and 215H drives\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication Note:\u003c\/strong\u003e For housings with oil reservoir check valve\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Cross Reference:\u003c\/strong\u003e 27-54014A1, 27-54014Q1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.13 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 808282257972\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Quantity:\u003c\/strong\u003e 1 gasket set\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eMerCruiser TR-TRS drives, serial number 4794900 and up (for housings with oil reservoir check valve)\u003c\/li\u003e\n\u003cli\u003e215E and 215H drives\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e27-54014A1\u003c\/li\u003e\n\u003cli\u003e27-54014Q1\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat drives does the Sierra 18-2620 outdrive gasket set fit?\u003c\/strong\u003e Sierra 18-2620 is built for MerCruiser TR and TRS drives, serial number 4794900 and up, and also fits 215E and 215H drives.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs 18-2620 the same as Mercury Marine 27-54014A1?\u003c\/strong\u003e Yes, part number 18-2620 is a direct cross-reference to Mercury Marine 27-54014A1 and 27-54014Q1, so it installs in place of either OEM number.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes this gasket set work on any outdrive housing, or only certain ones?\u003c\/strong\u003e The 18-2620 set is intended for TR-TRS drive housings that have an oil reservoir check valve, not for every outdrive housing configuration.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow many gaskets are included in the 18-2620 set?\u003c\/strong\u003e The Sierra 18-2620 Outdrive Gasket Set is sold as a single complete set covering the outdrive housing service points for the applicable MerCruiser TR-TRS drive.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the shipping weight of the 18-2620 gasket set?\u003c\/strong\u003e The Sierra 18-2620 Outdrive Gasket Set weighs 0.13 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill 18-2620 fit an Alpha One or Bravo drive?\u003c\/strong\u003e No, 18-2620 is specified for TR and TRS drives; Alpha One and Bravo drives use different gasket set part numbers.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow do I confirm my drive matches the 4794900-and-up serial range for this gasket set?\u003c\/strong\u003e Check the serial number tag on your MerCruiser TR-TRS drive housing; 18-2620 applies to units at serial number 4794900 and up with an oil reservoir check valve.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-2620 gasket set genuine Sierra or a generic aftermarket part?\u003c\/strong\u003e 18-2620 is a genuine Sierra part, manufactured as a direct cross-reference to the Mercury Marine 27-54014A1 and 27-54014Q1 outdrive gaskets.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the UPC for the Sierra 18-2620 outdrive gasket set?\u003c\/strong\u003e The Sierra 18-2620 Outdrive Gasket Set carries UPC 808282257972.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhen would I need to replace the outdrive gaskets on a TR-TRS drive?\u003c\/strong\u003e The 18-2620 gasket set is used any time the outdrive housing on a MerCruiser TR-TRS drive is opened for service, since the original gaskets should not be reused once disturbed.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988108030171,"sku":"SIE-18-2620","price":8.31,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-2620_lg__69109.1558122765.500.750.jpg?v=1785189131","url":"https:\/\/www.goodvibesmarina.com\/products\/outdrive-gasket-set-for-mercruiser-e-h-tr-trs-drives-replaces-oem-27-54014a1","provider":"Good Vibes Marina","version":"1.0","type":"link"}