{"product_id":"sierra-18-1976-2-manifold-elbow-riser-for-mercruiser-outboard-engines-sm-18-1976-2","title":"Sierra 18-1976-2 Manifold Elbow Riser for Mercruiser Outboard Engines SM-18-1976-2","description":"\u003cp\u003eSierra Marine exhaust manifold elbow 18-1976-2 will fit both port and starboard for Mercruiser MCM \/ MIE GM V-6 and V-8 engines with centre rise outlet exhaust manifold (2002 \u0026amp; older), as well as Sierra marine manifolds 18-1952-1, 18-1953-2 and 18-1957-2. The Sierra engine exhaust manifold elbow features a 4\" hose connection, a 7° down angle and is designed to replace the following manifold elbows:\u003cbr\u003e\n- Mercruiser Stern Drive 44354A10, 44354A13, 44354A3, 44354A9, 807914A1, 807988A03 \u0026amp; 807988A2\u003cbr\u003e\n- Barr MC-20-44354\u003cbr\u003e\n- GLM 51140\u003cbr\u003e\n- HGE 4354\u003cbr\u003e\n- Mallory 9-40559\u003cbr\u003e\n- Osco 4354\u003c\/p\u003e\n\n\u003cp\u003eThis engine exhaust manifold is ideal for saltwater applications and comes complete with:\u003cbr\u003e\n18-0897 Exhaust Elbow Gasket\u003cbr\u003e\n18-4258 Pipe Plug in Black Steel with square drive and 3\/4\" - 14 NPT (19.1mm) Thread\u003cbr\u003e\n3x 18-4256 Pipe Plug with 1\/4\" (6.4mm) Thread\u003cbr\u003e\n4x 18-8410 Riser Bolt with 3\/8\" 16 x 5-3\/4\" Thread (9.5mm-16 x 19.1mm)\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":57875113804157,"sku":"SM-18-1976-2","price":257.65,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0631\/0199\/3204\/files\/sm-18-1976-2_1ea4fef9-faf1-4515-9aeb-b4e20e43dfb0.jpg?v=1772338481","url":"https:\/\/waterworldsports.co.uk\/products\/sierra-18-1976-2-manifold-elbow-riser-for-mercruiser-outboard-engines-sm-18-1976-2","provider":"waterworldsports.co.uk","version":"1.0","type":"link"}