{"product_id":"reed-plate-gasket-for-mercury-outboards-replaces-27-14697-2-sierra-18-0644","title":"Sierra 18-0644 Reed Plate Gasket for Mercury Outboards, Replaces 27-146972","description":"\u003cp\u003eThe Sierra 18-0644 Reed Plate Gasket is a replacement gasket engineered to seal the reed plate assembly on applicable Mercury outboard engines. It is built to meet or exceed the quality of the original equipment part it replaces, giving boaters a reliable seal that helps maintain proper crankcase compression and prevent air leaks at the reed block interface. The gasket is white in color and is sized to match the original reed plate mounting surface it is designed for.\u003c\/p\u003e\u003cp\u003eReed plate gaskets are a wear item that should be replaced any time the reed valve assembly is removed for inspection or service, since a used gasket can lose its ability to seal properly once disturbed. Installing a fresh Sierra 18-0644 gasket during reed plate maintenance helps restore a tight seal between mating surfaces and supports consistent engine performance. This part cross-references directly to GLM 37530 and Mercury 27-146972, making it straightforward to identify as a correct match when replacing a worn or damaged original gasket.\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 18-0644\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Reed Plate Gasket\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e White\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 808282242824\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.2 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Dimensions:\u003c\/strong\u003e 0.508 centimeters H x 17.78 centimeters L x 35.56 centimeters W\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCountry of Origin:\u003c\/strong\u003e China\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Cross-Reference:\u003c\/strong\u003e GLM 37530, Mercury 27-146972\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cp\u003eSpecific engine models and year ranges are not specified for this part; it is cross-referenced to GLM 37530 and Mercury 27-146972.\u003c\/p\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eGLM 37530\u003c\/li\u003e\n\u003cli\u003eMercury 27-146972\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat is the Sierra 18-0644 Reed Plate Gasket used for?\u003c\/strong\u003e It seals the reed plate assembly on applicable Mercury outboard engines, helping maintain proper compression and preventing air leaks at the reed block.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the 18-0644 gasket cross-reference to any OEM numbers?\u003c\/strong\u003e Yes, the Sierra 18-0644 is interchangeable with GLM 37530 and Mercury 27-146972.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-0644 equivalent to the Mercury 27-146972 gasket?\u003c\/strong\u003e Yes, Mercury 27-146972 is a direct cross-reference for the Sierra 18-0644 Reed Plate Gasket.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat color is the reed plate gasket?\u003c\/strong\u003e The Sierra 18-0644 Reed Plate Gasket is white.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the 18-0644 gasket weigh?\u003c\/strong\u003e It weighs 0.2 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat are the package dimensions of the Sierra 18-0644 gasket?\u003c\/strong\u003e The package measures 0.508 centimeters H by 17.78 centimeters L by 35.56 centimeters W.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhere is the Sierra 18-0644 Reed Plate Gasket manufactured?\u003c\/strong\u003e The country of origin for the Sierra 18-0644 is China.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this a genuine Sierra part or aftermarket?\u003c\/strong\u003e The 18-0644 is a genuine Sierra branded part, manufactured to meet or exceed the quality of the original equipment gasket it replaces.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhen should the reed plate gasket be replaced?\u003c\/strong\u003e Any time the reed valve assembly on the outboard is removed for inspection or service, since a used gasket can lose its ability to seal once disturbed; the Sierra 18-0644 is designed as a fresh replacement for that job.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is included when ordering part 18-0644?\u003c\/strong\u003e The order includes one Sierra 18-0644 Reed Plate Gasket.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the GLM 37530 gasket the same as the Sierra 18-0644?\u003c\/strong\u003e Yes, GLM 37530 is listed as an interchangeable cross-reference for the Sierra 18-0644 Reed Plate Gasket.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988083978459,"sku":"SIE-18-0644","price":10.74,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-0644_lg__79096.1558120179.500.750.jpg?v=1785188267","url":"https:\/\/www.goodvibesmarina.com\/products\/reed-plate-gasket-for-mercury-outboards-replaces-27-14697-2-sierra-18-0644","provider":"Good Vibes Marina","version":"1.0","type":"link"}