You're in Boats, Kayaks & Boating Equipment

Need a Personal Shopper?

Subscribe to
Bizrate emails for the hottest
deals & products
,
PLUS a chance to

WIN $25

sign me up!

New winners chosen weekly.
No purchase necessary.

Best Seller
Sierra International Manifold With Mounting Package For MerCruiser 2.5L 153 Cid & 3.0L 181 Cid Engines 18-1954-1

Sierra International Manifold With Mounting Package For MerCruiser 2.5L 153 Cid & 3.0L 181 Cid Engines 18-1954-1

Sierra International Manifold With Mounting Package For MerCruiser 2.5L 153 Cid & 3.0L 181 Cid Engines 18-1954-1. It is designed for use in Mercruiser 2.5L (153 CID) and 3.0L (181 CID) (1983-1989) engines with a Rochester carburetor with a 5-bolt... ... more

Sierra International Manifold With Mounting Package For MerCruiser 2.5L 153 Cid & 3.0L 181 Cid Engines 18-1954-1

Sierra International Manifold With Mounting Package For MerCruiser 2.5L 153 Cid & 3.0L 181 Cid Engines 18-1954-1. It is designed for use in Mercruiser 2.5L (153 CID) and 3.0L (181 CID) (1983-1989) engines with a Rochester carburetor with a 5-bolt...

Optics Planet

$908.70

FREE shipping

go to store
Sierra International Cast Iron Manifold w/ Mounting Package 18-1931-1

Sierra International Cast Iron Manifold w/ Mounting Package 18-1931-1

Sierra International Cast Iron Manifold w/ Mounting Package 18-1931-1. It contains Sierra 18-2949 Exhaust Manifold Gasket and 18-2971-1 Exhaust Manifold Gasket. It is interchangeable with Barr VO-1-835804 GLM 51630 HGE 5804 Mallory 9-40901 Osco 5805... ... more

Sierra International Cast Iron Manifold w/ Mounting Package 18-1931-1

Sierra International Cast Iron Manifold w/ Mounting Package 18-1931-1. It contains Sierra 18-2949 Exhaust Manifold Gasket and 18-2971-1 Exhaust Manifold Gasket. It is interchangeable with Barr VO-1-835804 GLM 51630 HGE 5804 Mallory 9-40901 Osco 5805...

Optics Planet

$455.83

FREE shipping

go to store
Best Seller
Sierra International Manifold Elbow For 3in I.D. Exhaust Hose 18-1999

Sierra International Manifold Elbow For 3in I.D. Exhaust Hose 18-1999

Sierra International Manifold Elbow For 3in I.D. Exhaust Hose 18-1999. D. If a blocked mounting kit is required use Sierra Part Number 18-8535. The manifold elbow comes with (1) Sierra 18-4364 Exhaust Elbow Mounting Package (Open). Use this elbow with... ... more

Sierra International Manifold Elbow For 3in I.D. Exhaust Hose 18-1999

Sierra International Manifold Elbow For 3in I.D. Exhaust Hose 18-1999. D. If a blocked mounting kit is required use Sierra Part Number 18-8535. The manifold elbow comes with (1) Sierra 18-4364 Exhaust Elbow Mounting Package (Open). Use this elbow with...

Optics Planet

$251.95

FREE shipping

go to store
Sierra International 1-8-1-960-1- Manifold 18-1960-1

Sierra International 1-8-1-960-1- Manifold 18-1960-1

Sierra International 1-8-1-960-1- Manifold 18-1960-1. Each Sierra product meets or exceeds the original equipment part it replaces. Supplied with Mounting Package. Fits: Most Mercruiser (GM) in-line 6 cyl. engines. Features of Sierra International... ... more

Sierra International 1-8-1-960-1- Manifold 18-1960-1

Sierra International 1-8-1-960-1- Manifold 18-1960-1. Each Sierra product meets or exceeds the original equipment part it replaces. Supplied with Mounting Package. Fits: Most Mercruiser (GM) in-line 6 cyl. engines. Features of Sierra International...

Optics Planet

$1,338.06

FREE shipping

go to store
Sierra International Manifold For Port And Starboard 18-1957-2

Sierra International Manifold For Port And Starboard 18-1957-2

Sierra International Manifold For Port And Starboard 18-1957-2. Ideally suited for freshwater applications. Fits most Mercruiser (GM) V-8 Big Blocks with a center riser. Can be used with Sierra's 18-0418 Exhaust Manifold Mounting Gasket 18-8532 Exhaust... ... more

Sierra International Manifold For Port And Starboard 18-1957-2

Sierra International Manifold For Port And Starboard 18-1957-2. Ideally suited for freshwater applications. Fits most Mercruiser (GM) V-8 Big Blocks with a center riser. Can be used with Sierra's 18-0418 Exhaust Manifold Mounting Gasket 18-8532 Exhaust...

Optics Planet

$516.13

FREE shipping

go to store
Sierra International Manifold Riser w/ Hardware 18-1909-1

Sierra International Manifold Riser w/ Hardware 18-1909-1

Sierra International Manifold Riser w/ Hardware 18-1909-1. 4" outlet 7. Material: CAST IRON. Use with 18-1848 manifold 18-1986-1 manifold 18-8507 exhaust elbow mounting kit and 18-0943-2 gasket exhaust elbow. Features of Sierra International Manifold... ... more

Sierra International Manifold Riser w/ Hardware 18-1909-1

Sierra International Manifold Riser w/ Hardware 18-1909-1. 4" outlet 7. Material: CAST IRON. Use with 18-1848 manifold 18-1986-1 manifold 18-8507 exhaust elbow mounting kit and 18-0943-2 gasket exhaust elbow. Features of Sierra International Manifold...

Optics Planet

$384.91

FREE shipping

go to store
Sierra International 1-8-1-996 Manifold 18-1996

Sierra International 1-8-1-996 Manifold 18-1996

Sierra International 1-8-1-996 Manifold 18-1996. For: Pleasurecraft Ford Small Block V8 302 and 351 cu. in. For use with 18-8503 Exhaust Manifold Mounting Kit 18-1899 Riser 18-0183-1 Gasket Exhaust Manifold. Follow manufacturer recommendations and... ... more

Sierra International 1-8-1-996 Manifold 18-1996

Sierra International 1-8-1-996 Manifold 18-1996. For: Pleasurecraft Ford Small Block V8 302 and 351 cu. in. For use with 18-8503 Exhaust Manifold Mounting Kit 18-1899 Riser 18-0183-1 Gasket Exhaust Manifold. Follow manufacturer recommendations and...

Optics Planet

$537.19

FREE shipping

go to store
Sierra International Manifold For Gm Sb V8 Engines Port Side 18-1903

Sierra International Manifold For Gm Sb V8 Engines Port Side 18-1903

Sierra International Manifold For Gm Sb V8 Engines Port Side 18-1903. Designed for installation on the port side. Use with Sierra's 18-1921 Manifold Elbow 18-2949 Exhaust Manifold Gasket 18-8502 Exhaust Manifold Mounting Kit 18-2902-1 Exhaust Manifold... ... more

Sierra International Manifold For Gm Sb V8 Engines Port Side 18-1903

Sierra International Manifold For Gm Sb V8 Engines Port Side 18-1903. Designed for installation on the port side. Use with Sierra's 18-1921 Manifold Elbow 18-2949 Exhaust Manifold Gasket 18-8502 Exhaust Manifold Mounting Kit 18-2902-1 Exhaust Manifold...

Optics Planet

$453.20

FREE shipping

go to store
Sierra International Manifold Elbow For Gm V8 Sb Engines Most Models 18-1921

Sierra International Manifold Elbow For Gm V8 Sb Engines Most Models 18-1921

Sierra International Manifold Elbow For Gm V8 Sb Engines Most Models 18-1921. Use with Sierra's 18-1902 Manifold 18-1903 Manifold 18-8534 Exhaust Elbow Mounting Kit 18-8553 Hardware Kit (Exhaust Elbow Bolts) and 18-0943-2 Exhaust Elbow Gasket. It is... ... more

Sierra International Manifold Elbow For Gm V8 Sb Engines Most Models 18-1921

Sierra International Manifold Elbow For Gm V8 Sb Engines Most Models 18-1921. Use with Sierra's 18-1902 Manifold 18-1903 Manifold 18-8534 Exhaust Elbow Mounting Kit 18-8553 Hardware Kit (Exhaust Elbow Bolts) and 18-0943-2 Exhaust Elbow Gasket. It is...

Optics Planet

$308.61

FREE shipping

go to store
Sierra International Drive Shaft Preload Tool 18-9874

Sierra International Drive Shaft Preload Tool 18-9874

Sierra International Drive Shaft Preload Tool 18-9874. It is designed for use with Mercruiser MC-I R-MR Alpha I and Alpha I/Gen II stern drives and outboards. Includes one drive shaft preload tool per package. It is interchangeable with Mercury Marine... ... more

Sierra International Drive Shaft Preload Tool 18-9874

Sierra International Drive Shaft Preload Tool 18-9874. It is designed for use with Mercruiser MC-I R-MR Alpha I and Alpha I/Gen II stern drives and outboards. Includes one drive shaft preload tool per package. It is interchangeable with Mercury Marine...

Optics Planet

$395.16

FREE shipping

go to store
Sierra International Engine Alignment Tool 18-4442

Sierra International Engine Alignment Tool 18-4442

Sierra International Engine Alignment Tool 18-4442. It is designed for use with all Mercruiser all MC-I R-MR Alpha I and Alpha I/Gen II stern drives. It is also used for OMC Cobra stern drives. Includes one engine alignment tool per package. It is... ... more

Sierra International Engine Alignment Tool 18-4442

Sierra International Engine Alignment Tool 18-4442. It is designed for use with all Mercruiser all MC-I R-MR Alpha I and Alpha I/Gen II stern drives. It is also used for OMC Cobra stern drives. Includes one engine alignment tool per package. It is...

Optics Planet

$192.12

FREE shipping

go to store
Sierra International 18-9856 Drive Gear Shimming Tool 18-9856

Sierra International 18-9856 Drive Gear Shimming Tool 18-9856

Sierra International 18-9856 Drive Gear Shimming Tool 18-9856. Designed for use with Mercruiser MC-I R-MR Alpha I and Alpha I/Gen II drive units. Includes one drive gear shimming tool per package. It is interchangeable with GLM 90180 and Mercury Marine... ... more

Sierra International 18-9856 Drive Gear Shimming Tool 18-9856

Sierra International 18-9856 Drive Gear Shimming Tool 18-9856. Designed for use with Mercruiser MC-I R-MR Alpha I and Alpha I/Gen II drive units. Includes one drive gear shimming tool per package. It is interchangeable with GLM 90180 and Mercury Marine...

Optics Planet

$421.25

FREE shipping

go to store