{"product_id":"sierra-18-8507-exhaust-elbow-mounting-kit-for-omc-volvo-penta-gm-small-block-v8-305-350-cu-in","title":"Sierra Exhaust Elbow Mounting Kit 18-8507 for OMC Sterndrive\/Cobra Exhaust Elbow 18-1909-1","description":"\u003cp\u003eThe Sierra 18-8507 Exhaust Elbow Mounting Kit supplies the hardware needed to install or reseal the exhaust elbow on OMC Sterndrive\/Cobra I\/O cooling systems. It is designed for use with exhaust elbow 18-1909-1 and includes the 18-0943-2 elbow gasket, giving you the correct seal for a proper installation without having to source the gasket separately. This application is used on OMC\/Volvo GM small block V8 305-350 cubic inch engines.\u003c\/p\u003e\u003cp\u003eExhaust elbows direct spent exhaust gases and cooling water away from the engine, and the mounting kit ensures the elbow seats correctly against the manifold with a tight, leak-free seal. Using the correct gasket and hardware kit at reinstallation helps prevent exhaust leaks and water intrusion, both of which can cause serious engine damage in a marine cooling system. Sierra manufactures this kit to meet or exceed the performance of the original equipment part it replaces, and it is built for the corrosive, high-heat environment found in marine exhaust systems.\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 18-8507\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Exhaust Elbow Mounting Kit\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e OMC Sterndrive\/Cobra I\/O Cooling System\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEngine Compatibility:\u003c\/strong\u003e OMC\/Volvo GM Small Block V8 305-350 cuin\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible Elbow:\u003c\/strong\u003e 18-1909-1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncluded Gasket:\u003c\/strong\u003e 18-0943-2 Elbow Gasket\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.24 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 808282127046\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eOMC Sterndrive\/Cobra I\/O cooling systems using exhaust elbow 18-1909-1\u003c\/li\u003e\n\u003cli\u003eOMC\/Volvo GM small block V8 305-350 cubic inch engines\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat is the Sierra 18-8507 Exhaust Elbow Mounting Kit used for?\u003c\/strong\u003e It provides the hardware and gasket needed to mount the exhaust elbow on OMC Sterndrive\/Cobra I\/O cooling systems, specifically for use with exhaust elbow 18-1909-1.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes this kit include the elbow gasket?\u003c\/strong\u003e Yes, the 18-8507 kit includes the 18-0943-2 elbow gasket, so you do not need to purchase the gasket separately for the elbow installation.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhich elbow does the 18-8507 mounting kit fit?\u003c\/strong\u003e This kit is designed for use with exhaust elbow 18-1909-1 on OMC Sterndrive\/Cobra applications.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat engines is the 18-8507 mounting kit compatible with?\u003c\/strong\u003e It is used on OMC\/Volvo GM small block V8 engines in the 305 to 350 cubic inch displacement range.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the 18-8507 mounting kit weigh?\u003c\/strong\u003e The Sierra 18-8507 Exhaust Elbow Mounting Kit weighs 0.24 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this a genuine Sierra part?\u003c\/strong\u003e Yes, the 18-8507 is manufactured by Sierra and is built to meet or exceed the performance of the original equipment part it replaces.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is included in the box with part number 18-8507?\u003c\/strong\u003e The kit includes the mounting hardware for the exhaust elbow along with the 18-0943-2 elbow gasket.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs a separate exhaust manifold gasket needed with this kit?\u003c\/strong\u003e No, the 18-8507 kit is specifically for mounting the exhaust elbow (18-1909-1) and includes the elbow gasket 18-0943-2; it does not include a manifold gasket.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill the 18-8507 kit fit a Volvo Penta application?\u003c\/strong\u003e This kit applies to OMC\/Volvo GM small block V8 305-350 cuin engines in OMC Sterndrive\/Cobra I\/O cooling systems.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy is it important to replace the elbow gasket during this installation?\u003c\/strong\u003e A worn or improperly sealed gasket on the exhaust elbow can allow exhaust or water leaks, so the 18-0943-2 gasket included in kit 18-8507 ensures a proper seal when the elbow is mounted.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988433809627,"sku":"SIE-18-8507","price":26.42,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-8507_lg__80134.1558133321.500.750.jpg?v=1785188324","url":"https:\/\/www.goodvibesmarina.com\/products\/sierra-18-8507-exhaust-elbow-mounting-kit-for-omc-volvo-penta-gm-small-block-v8-305-350-cu-in","provider":"Good Vibes Marina","version":"1.0","type":"link"}