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| Best Seller  | Sierra International Complete Upper Gear Housing w/ 21-16 Ratio For OMC 5.7L/5.8L 18-4804 Sierra International Complete Upper Gear Housing w/ 21-16 Ratio For OMC 5.7L/5.8L 18-4804. 7L (1986-1993) and 5.8L (1986-1989 1991-1993) I/O engines. The gear housing features a 21:16 ratio. It is interchangeable with OMC Stern Drive 983888 984770... ... more | FREE shipping go to store |
 | Sierra International Complete Upper Gear Housing w/ 21-18 Ratio For OMC 2.5L/3.0L/5.0L 18-4805 Sierra International Complete Upper Gear Housing w/ 21-18 Ratio For OMC 2.5L/3.0L/5.0L 18-4805. 5L (1986-1989) 3.0L (1986-1993) and 5.0L (1989-1993) I/O engines. The gear housing features a 21:18 ratio. It is interchangeable with OMC Stern Drive 983885... ... more | FREE shipping go to store |
| Best Seller  | Sierra International Complete Gearcase Seal Kit 18-8357 Sierra International Complete Gearcase Seal Kit 18-8357. Designed to be interchangeable with the following: Mallory 9-77900 Volvo Penta 875741 876266. Each Sierra product meets or exceeds the original equipment part it replaces. Features of Sierra... ... more | FREE shipping go to store |
 | Sierra International 18-8312 Gimble Housing Rebuild Kit 18-8312 Sierra International 18-8312 Gimble Housing Rebuild Kit 18-8312. The kit contains: (1) Sierra 18-2751 U-Joint Bellows and (1) Sierra 18-710-72-2 Hose Clamp (4-1/16" to 5"). Built with quality materials. Each Sierra product meets or exceeds the original... ... more | FREE shipping go to store |
 | Sierra International 18-8311 Gimble Housing Rebuild Kit 18-8311 Sierra International 18-8311 Gimble Housing Rebuild Kit 18-8311. The kit contains: (1) Sierra 18-2751 U-Joint Bellows and (1) Sierra 18-710-72-2 Hose Clamp (4-1/16" to 5"). Built with quality materials. Each Sierra product meets or exceeds the original... ... more | FREE shipping go to store |
 | Sierra International Upper Unit Gear Repair Kit 1.98-1 1.91-1 & 2.40-1 Ratio 18-2363 Sierra International Upper Unit Gear Repair Kit 1.98-1 1.91-1 & 2.40-1 Ratio 18-2363. It features 1.98:1 1.94:1 and 2.40:1 ratios. The kit contains: (1) Sierra 18-2820 Outdrive Gasket (1) Sierra 18-2840 Bell Housing Gasket (1) Sierra 18-2743 Outdrive... ... more | FREE shipping go to store |
 | Sierra International Stern Drive Seal Kit 18-2625 Sierra International Stern Drive Seal Kit 18-2625. It is designed for use with Volvo AQ200 AQ250 AQ270 AQ275 AQ280 and AQ290 stern drives. The kit contains: (1) Washer (1) Gasket (2) O-Rings (1) Sierra 18-2040 Oil Seal (4) Sierra 18-7180 O-Rings (1)... ... more | FREE shipping go to store |
 | Sierra International 18-8218 Transom Seal Kit 18-8218 Sierra International 18-8218 Transom Seal Kit 18-8218. It is interchangeable with Mallory 9-72902 and Mercruiser 30-803097T1. The kit includes Sierra's 18-2100 Heavy-Duty Gimbal Bearing 18-2161 Shift Arm 18-2619-1 Outdrive Gasket Set 18-2750 Exhaust... ... more | FREE shipping go to store |
 | Sierra International Transom Seal Kit For Alpha I Gen Ii 18-8206-1 Sierra International Transom Seal Kit For Alpha I Gen Ii 18-8206-1. It is interchangeable with Mallory Part Number 9-72904 and Mercruiser Stern Drive Part Number 30-803099T1. Kit contains the following Sierra parts: (1) 18-3602 Water Intake Hose (1)... ... more | FREE shipping go to store |
 | Sierra International 18-8205 Transom Seal Kit 18-8205 Sierra International 18-8205 Transom Seal Kit 18-8205. It is interchangeable with Mallory 9-72902 and Mercruiser 30-803097T1. The kit includes Sierra's 18-2100 Heavy-Duty Gimbal Bearing 18-2161 Shift Arm 18-2619-1 Outdrive Gasket Set 18-2750 Exhaust... ... more | FREE shipping go to store |
 | Sierra International 18-2601-1 Transom Seal Kit 18-2601-1 Sierra International 18-2601-1 Transom Seal Kit 18-2601-1. It is interchangeable with Mallory 9-72902 and Mercruiser 30-803097T1. The kit includes Sierra's 18-2100 Heavy-Duty Gimbal Bearing 18-2161 Shift Arm 18-2619-1 Outdrive Gasket Set 18-2750... ... more | FREE shipping go to store |
 | Sierra International Transom Seal Kit OMC Sx Cobra Drives/Volvo Sx Drives 18-2772-1 Sierra International Transom Seal Kit OMC Sx Cobra Drives/Volvo Sx Drives 18-2772-1. The kit contains the following: 18-1074 Exhaust Bellows 18-2100 Gimbal Bearing 18-2765 U-Joint Bellows 18-2996 Outdrive Seal 18-715 O-Ring 18-710-64-2 Hose Clamp... ... more | FREE shipping go to store |
 | Sierra International 18-8212-1 Transom Seal Kit 18-8212-1 Sierra International 18-8212-1 Transom Seal Kit 18-8212-1. It is interchangeable with Mallory 9-72902 and Mercruiser 30-803097T1. The kit includes Sierra's 18-2100 Heavy-Duty Gimbal Bearing 18-2161 Shift Arm 18-2619-1 Outdrive Gasket Set 18-2750... ... more | FREE shipping go to store |
 | Sierra International Lower Seal Kit 18-8359 Sierra International Lower Seal Kit 18-8359. The kit contains: (4) Sierra 18-7180 O-Rings (1) Sierra 18-7184 O-Ring (2) Sierra 18-2041 Oil Seals (1) Sierra 18-7194 O-Ring (1) Sierra 18-7193 O-Ring and (1) Sierra 18-4259 Washer. The kit is... ... more | FREE shipping go to store |
 | Sierra International 18-6352K Upper Unit Gear Repair Kit 18-6352K Sierra International 18-6352K Upper Unit Gear Repair Kit 18-6352K. Each Sierra product meets or exceeds the original equipment part it replaces. For: Gen II applications s/n range up to 0K999999 only. Features of Sierra International Upper Unit Gear... ... more | FREE shipping go to store |
 | Sierra International Upper Unit Gear Repair Kit 1.84-1 & 1.81-1 Ratio 18-2365 Sierra International Upper Unit Gear Repair Kit 1.84-1 & 1.81-1 Ratio 18-2365. It features 1.84:1 and 1.81:1 ratios. The kit contains: (1) Sierra 18-2283 Shim Set (1) Sierra 18-2292 Shim Set (1) Sierra 18-2293 Shim Set (1) Sierra 18-1161 Tapered Roller... ... more | FREE shipping go to store |
 | Sierra International Upper Gear Kit 18-1600 Sierra International Upper Gear Kit 18-1600. Built with precision for optimal performance and reliability within marine environments. Features an upper gear kit ratio: 21:16. Features of Sierra International 181600 Upper Gear Kit Built with precision... ... more | FREE shipping go to store |
 | Sierra International Gear Repair Kit 18-2404 Sierra International Gear Repair Kit 18-2404. Designed to be interchangeable with the following: GLM 25115 Mercruiser 43-803079T1. Contains (1) 18-1155 Ball Bearing (1) 18-1157 Forward Gear Inner Bearing (1) 18-1159 Tapered Roller Bearing (1) 18-2200... ... more | FREE shipping go to store |
 | Sierra International Upper Drive Shaft Gear Repair Kit 18-2256 Sierra International Upper Drive Shaft Gear Repair Kit 18-2256. Features a ratio of 1.5:1. The kit contains: (1) Sierra 18-1142 Upper Pinion Bearing (1) Sierra 18-1160 Drive Bearing Kit (1) Sierra 18-1165 Tapered Roller Bearing (1) Sierra 18-2201 Upper... ... more | FREE shipping go to store |
 | Sierra International Thermostat Housing For MerCruiser 8M0061381/861006A1 18-1989 Sierra International Thermostat Housing For MerCruiser 8M0061381/861006A1 18-1989. E. Part Numbers 8M0061381 and 861006A1. Use Sierra's 18-1989K Thermostat Service Kit for replacement parts. Constructed of durable stainless steel. Check manufacturer... ... more | FREE shipping go to store |
 | Sierra International 18-2768 Transom Seal 18-2768 Sierra International 18-2768 Transom Seal 18-2768. Includes one transom seal per package. It is interchangeable with Volvo Penta 3852550 and OMC Stern Drive 3852550 and 911797. Each Sierra product meets or exceeds the original equipment part it... ... more | FREE shipping go to store |
 | Sierra International 18-2767 Transom Seal 18-2767 Sierra International 18-2767 Transom Seal 18-2767. Includes one transom seal per package. It is interchangeable with Volvo Penta 3852550 and OMC Stern Drive 3852550 and 911797. Each Sierra product meets or exceeds the original equipment part it... ... more | FREE shipping go to store |
 | Sierra International 18-1566 Reverse Gear 18-1566 Sierra International 18-1566 Reverse Gear 18-1566. Features a gear ratio of 2.07:1. Designed to be used with 18-1550 Complete Gear Set-4 Cyl. Meets or exceeds the original equipment quality. Features of Sierra International Reverse Gear Reverse gear... ... more | FREE shipping go to store |
 | Sierra International 18-2217 Gear Set 18-2217 Sierra International 18-2217 Gear Set 18-2217. It is contains Johnson/Evinrude 336561 Reverse Gear and Johnson/Evinrude 5004216 Forward and Pinion Gear. Each Sierra product meets or exceeds the original equipment part it replaces. Features of Sierra... ... more | FREE shipping go to store |
 | Sierra International Complete 4 Cylinder Gear Set 2.07-1 Ratio 18-1550 Sierra International Complete 4 Cylinder Gear Set 2.07-1 Ratio 18-1550. It offers forward pinion reverse and clutch options for 4-cylinder engines. Fits 100 with 6 JAW reverse clutch (1988-1998) 115 with 6 JAW (1989-1998) 125 with 6 JAW (1994-1998).... ... more | 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. 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 | FREE shipping go to store |
 | Sierra International Gear Set Forward 18-1564 Sierra International Gear Set Forward 18-1564. Forward gear set. Features a gear ratio of 1.87:1. Constructed with precision for optimal performance and reliability. Follow manufacturer recommendations and guidelines for proper fit. Features of Sierra... ... more | FREE shipping go to store |
 | Sierra International 18-9855 Drive Gear Shimming Tool 18-9855 Sierra International 18-9855 Drive Gear Shimming Tool 18-9855. Each Sierra product meets or exceeds the original equipment part it replaces. Features of Sierra International 189855 189855 Drive Gear Shimming Tool Sierra Drive Gear Shimming Tool... ... more | FREE shipping go to store |
 | Sierra International 18-2204 Upper Unit Gear Set 18-2204 Sierra International 18-2204 Upper Unit Gear Set 18-2204. Features a ratio of 1.5:1. It is interchangeable with GLM 11210 and Mercruiser Stern Drive 43-18410A2 43-18411A2 43-59832A2 and 43-59832A4. Each Sierra product meets or exceeds the original... ... more | FREE shipping go to store |
 | Sierra International Upper Unit Gear Set 1.98-1 Ratio 18-2205 Sierra International Upper Unit Gear Set 1.98-1 Ratio 18-2205. 98:1 ratio. Designed for use with Mercruiser 120/140 (s/n 2791957 & Up) and Alpha Gen II (s/n 0K999999 & Below) drive units. The set includes one drive gear and one driven gear per package.... ... more | FREE shipping go to store |
 | Sierra International 18-2206-1 Lower Unit Gear Set 18-2206-1 Sierra International 18-2206-1 Lower Unit Gear Set 18-2206-1. 00 - 2.40 ratios). 43-878087A2 43-828073A1 & 43-878087A4 make up gear set 18-2206-1. Each Sierra product meets or exceeds the original equipment part it replaces. Features of Sierra... ... more | FREE shipping go to store |
 | Sierra International 18-2290 Gear Set 18-2290 Sierra International 18-2290 Gear Set 18-2290. It is contains Johnson/Evinrude 336561 Reverse Gear and Johnson/Evinrude 5004216 Forward and Pinion Gear. Each Sierra product meets or exceeds the original equipment part it replaces. Features of Sierra... ... more | FREE shipping go to store |
 | Sierra International 18-1560 Reverse Gear 18-1560 Sierra International 18-1560 Reverse Gear 18-1560. Features a gear ratio of 2.07:1. Designed to be used with 18-1550 Complete Gear Set-4 Cyl. Meets or exceeds the original equipment quality. Features of Sierra International Reverse Gear Reverse gear... ... more | FREE shipping go to store |
 | Sierra International 18-2218 Forward Gear Set 18-2218 Sierra International 18-2218 Forward Gear Set 18-2218. The set includes (1) Forward Gear and (1) Pinion Gear. Interchangeable with Mallory 9-73561 GLM 22631 OMC Stern Drive 985050 and Johnson/Evinrude Outboard 434063 436746 and 985050. Each Sierra... ... more | FREE shipping go to store |
 | Sierra International 18-2221 Gear Set 18-2221 Sierra International 18-2221 Gear Set 18-2221. It is contains Johnson/Evinrude 336561 Reverse Gear and Johnson/Evinrude 5004216 Forward and Pinion Gear. Each Sierra product meets or exceeds the original equipment part it replaces. Features of Sierra... ... more | FREE shipping go to store |
 | Sierra International 18-2360 Forward Gear Set 18-2360 Sierra International 18-2360 Forward Gear Set 18-2360. The set includes (1) Forward Gear and (1) Pinion Gear. Interchangeable with Mallory 9-73561 GLM 22631 OMC Stern Drive 985050 and Johnson/Evinrude Outboard 434063 436746 and 985050. Each Sierra... ... more | FREE shipping go to store |
 | Sierra International Complete V6 Gear Set 1.87-1 Ratio 18-1551 Sierra International Complete V6 Gear Set 1.87-1 Ratio 18-1551. Fits V-150 XR6 Mag III (1997 and newer) V-150 EFI (1997 and newer) V-150 DFI (1998 and newer) V-175 (1997 and newer) V-175 EFI (1997 and newer) V-175 DFI (2001 and newer) V-200 (1997 and... ... more | FREE shipping go to store |
 | Sierra International 18-2208 Reverse Gear 18-2208 Sierra International 18-2208 Reverse Gear 18-2208. Features a gear ratio of 2.07:1. Designed to be used with 18-1550 Complete Gear Set-4 Cyl. Meets or exceeds the original equipment quality. Features of Sierra International Reverse Gear Reverse gear... ... more | FREE shipping go to store |
 | Sierra International Idler Gear Assembly 15-15080 Sierra International Idler Gear Assembly 15-15080. Follow manufacturer recommendations and guidelines for proper fit/usage information. Marine-grade components. Each Sierra product meets or exceeds the original equipment part it replaces. Features of... ... more | FREE shipping go to store |
 | Sierra International Gear Uction Starter Permanent Magnet Red 18-5906 Sierra International Gear Uction Starter Permanent Magnet Red 18-5906. The keyed design ensures high starting torque and high starting reliability. The Sierra 18-5906 Gear Reduction Starter (Permanent Magnet) features a pinion gear with two pinion gear... ... more | FREE shipping go to store |
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