{"product_id":"sierra-18-0604-exhaust-manifold-gasket-set-for-gm-283-305-307-350-cid-volvo-penta-307-350-cid-marine-engines-1968-1980","title":"Sierra 18-0604 Exhaust Manifold Gasket Set - GM 305-350 CID Engines","description":"\u003cp\u003eThe Sierra 18-0604 Exhaust Manifold Gasket Set is a replacement gasket kit for GM 305-350 CID marine engines, designed for use with exhaust manifold 18-1997-1. The set contains two exhaust elbow gaskets and two 18-2949 exhaust manifold gaskets, giving you the seals needed to reseat the manifold and elbow assembly during a rebuild or gasket replacement. The gaskets are white in color and are built to meet or exceed the specifications of the original equipment parts they replace, making them a reliable choice when servicing a GM small block V8 marine exhaust system. Because exhaust manifold gaskets are subject to constant heat cycling and exposure to exhaust gases and cooling water, replacing them with a properly sized, purpose-built set like the 18-0604 helps prevent water intrusion, exhaust leaks, and manifold corrosion. This gasket set is interchangeable with GLM 39910, so it can be used as a direct swap wherever that number is called for. Whether you are pulling a manifold for inspection, replacing a leaking gasket, or performing routine maintenance on a GM 305-350 CID marine engine, the 18-0604 set provides the correct gaskets for the job in one package.\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 18-0604\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Exhaust Manifold Gasket Set\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFitment:\u003c\/strong\u003e GM 305-350 CID Engines\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUse With Manifold:\u003c\/strong\u003e 18-1997-1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncluded Components:\u003c\/strong\u003e (2) Exhaust Elbow Gaskets, (2) 18-2949 Exhaust Manifold Gaskets\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInterchangeable With:\u003c\/strong\u003e GLM 39910\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 808282242787\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.37 pounds\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eGM 305-350 CID Engines\u003c\/li\u003e\n\u003cli\u003eUse with Manifold: 18-1997-1\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eGLM 39910\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat engines does the Sierra 18-0604 exhaust manifold gasket set fit?\u003c\/strong\u003e The 18-0604 gasket set is designed for GM 305-350 CID marine engines and is used with exhaust manifold 18-1997-1.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-0604 interchangeable with any other part numbers?\u003c\/strong\u003e Yes, the Sierra 18-0604 exhaust manifold gasket set is interchangeable with GLM 39910.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is included in the 18-0604 gasket set?\u003c\/strong\u003e Two exhaust elbow gaskets and two 18-2949 exhaust manifold gaskets are included in the Sierra 18-0604 set.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhich manifold does the 18-0604 gasket set pair with?\u003c\/strong\u003e This gasket set is used with exhaust manifold 18-1997-1 on GM 305-350 CID engines.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat color are the gaskets in the Sierra 18-0604 set?\u003c\/strong\u003e The gaskets in the 18-0604 set are white.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the Sierra 18-0604 gasket set weigh?\u003c\/strong\u003e The Sierra 18-0604 exhaust manifold gasket set weighs 0.37 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the Sierra 18-0604 meet OEM specifications?\u003c\/strong\u003e Sierra states that the 18-0604 gasket set meets or exceeds the original equipment part it replaces.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow many exhaust elbow gaskets come in the 18-0604 set?\u003c\/strong\u003e The set includes two exhaust elbow gaskets along with two 18-2949 exhaust manifold gaskets.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDo I need a separate mounting kit to install the 18-0604 gasket set?\u003c\/strong\u003e The 18-0604 gasket set itself does not include a mounting kit; the manifold it pairs with, 18-1997-1, uses mounting kit 18-8536 with its own manifold gasket and bolts.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the UPC for the Sierra 18-0604 gasket set?\u003c\/strong\u003e The UPC for the Sierra 18-0604 exhaust manifold gasket set is 808282242787.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988084306139,"sku":"SIE-18-0604","price":32.46,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-0604_lg__09486.1558118853.500.750.jpg?v=1785188963","url":"https:\/\/www.goodvibesmarina.com\/products\/sierra-18-0604-exhaust-manifold-gasket-set-for-gm-283-305-307-350-cid-volvo-penta-307-350-cid-marine-engines-1968-1980","provider":"Good Vibes Marina","version":"1.0","type":"link"}