Engines & Maintenance

Sierra Exhaust Inner Cover Gasket 18-99135 Part#: S-18-99135 Fits: Yamaha 40 (1992-06), 50 (1992-09), P40 (1998), P50 (1992-96), C40 (1997-03), C50 (1998-01) Interchange: Yamaha Outboard - 6H4-41112-00-00, 6H4-41112-A0-00

Sierra Exhaust Manifold (Dry Joint) - Mercruiser - S-18-1843. Replaces: 865735A02, 865049T01, 864308T01Fits: 305, 350, 377, 5. 0L, 5. 7L, 6. 2L(2002 and Newer)Use with:Manifold Gasket: S-18-2949Elbow Gaskets: S-18-0720, S-18-0721 or S-18-0722Elbow:...

Sierra Exhaust Manifold Gasket Set - Mercruiser - S-18-4347-1. For: GM 175, 185, 205 (229 & 262 CID)Contains:Sierra CodeDescriptionO. E #QtyS-18-0897Exhaust Elbow Mounting Gasket27-41813-12S-18-2909Exhaust Manifold to Cyl. Head Gasket 27-997572  Part...

Sierra Exhaust Manifold Gasket Set - Mercruiser - S-18-4348For: GM 454, 525 (7. 4L & 8. 2L)Contains:Sierra CodeDescriptionO. E #QtyS-18-0418Manifold to Cylinder Head Gasket 27-468202S-18-0897Exhaust Elbow Mounting Gasket27-41813-12  Part Number...

Sierra Exhaust Manifold Gasket Set - Mercruiser - S-18-4367. Replaces: 27-99777A1For: GM 153 & 181 (2. 5 & 3. 0L) CID Engs; 120 & 140 HPS/N 6229718 & UP (With Siamese Port Cylinder Heads) Part Number SRA-S-18-4367

Sierra Exhaust Manifold Gasket Set - Mercruiser - S-18-4396. Replaces: 27-46401A1For: 250 (4. 1L) CID Eng; 165 HP S/N 2770032 & UPContains:Sierra CodeDescriptionO. E #QtyS-18-2830-1Intake Exhaust Gasket27-464011S-18-2831Thermostat...

Sierra Exhaust Protector Valve 100mm Includes: Stainless Steel ClampSize: 4" or 101.6mmCompounded rubber flapper valves prevent water from entering the exhaust systemMade with weather resistant EPDM with U/V stabilizer Kit Contains:18-710-72-2:...

Sierra Exhaust Riser Gasket Use with:18-1939  Riser18-1907  Riser18-1898  Manifold18-8535  Exhaust Elbow Mounting Kit18-1999  Manifold Elbow Interchangeable with the following:GLM36830Osco992-G Barr01-0107

Sierra Exhaust Tube - Mercruiser  I.D.: 3" or 76.2mmFits: MCM 470/485, 185, 205, 898, 228 & 260 Interchangeable with the following:GLM89090Mercruiser Stern Drive32-9094932-90949T

Sierra Exhaust Tube - Mercruiser  Fits: MCM 470/485, 898, 228, 250, 260, 280, 330 & Ford 2333 Inch to 4 Inch Inside Diameter Interchangeable with the following:GLM89070Mercruiser Stern Drive7098170981A3

Sierra Exhaust Tube - Mercruiser  For: #1, Bravo I, II, III Contents:Bellows Ground Clip 9-73116Hose Clamp-2-9/16 TO 3-1/2 Interchangeable with the following:GLM89150Mercruiser Stern Drive7845878458A1

Sierra Exhaust Water Shutter Length: 3" (7.6cm)Width: 3.780" Interchangeable with the following:Mercruiser Stern Drive60930