SEI New SEI / Mercruiser Alpha 1 & Alpha 1 Gen II Shift Cable Kit – Fits 1972–Present R, MR, Alpha 1 & Gen II Drives – Replaces OEM #19543A4 MSRP: Was: Now: $49.50 Choose Options
SEI New SEI / Mercruiser Alpha I Hose & Hardware Kit (1972–1992) – For 15-9/16" Trim Cylinders – Includes Hoses & Mounting Hardware MSRP: Was: Now: $187.00 Add to Cart
SEI New SEI / Mercruiser Alpha 1 Hose & Hardware Kit (1972–1992) – For External Line Trim Cylinders – Includes Hoses & Mounting Hardware – Replaces SEI 9B-102 MSRP: Was: Now: $187.00 Add to Cart
SEI New SEI / Mercruiser Alpha 1 16-3/16" Trim Cylinder (Port or Starboard) – Fits 1972–1991 Alpha One Drives – Replaces OEM #14034A3 / 14035A3 MSRP: Was: Now: $176.00 Choose Options
SEI New SEI / Mercruiser Alpha 1 Trim Cylinder – 15-9/16" Long – Replaces OEM #98703A3 / 98703A4 MSRP: Was: Now: $176.00 Choose Options
SEI New SEI / Mercruiser Alpha 1 External Line Trim Cylinder (1972–1991) – Fits Port or Starboard – Replaces OEM #32-87234 MSRP: Was: Now: $176.00 Choose Options
SEI New SEI / MerCruiser Alpha One Lower Gear Set (1972–1990) – 1.62:1 Ratio – Counter Rotation – Replaces OEM 812975A5 / 824700A1 MSRP: Was: Now: $591.72 Choose Options
SEI New SEI / MerCruiser Alpha One Upper Gear Set (1972–1990) – 5.7L V8 – 1.47 / 1.50 Ratio – Replaces OEM 43-18410A4 MSRP: Was: Now: $367.28 Choose Options
SEI New SEI / Mercruiser 1972-1990 Alpha 1 Upper Sterndrive Assembly (9 9/16" Input Yoke) # 90-106-01A MSRP: Was: Now: $965.00 Choose Options
SEI New SEI / Mercruiser 1972-1990 Alpha 1 Upper Sterndrive Assembly (8 1/8" Short Yoke) MSRP: Was: Now: $965.00 Choose Options
SEI New SEI / Mercruiser 1972-1990 Alpha 1 4 CYL, V6 and V8 Counter-Rotation Gearcase MSRP: Was: Now: $1,175.00 Choose Options
SEI New SEI / Mercruiser Alpha 1 1972-1990 4 CYL, V6 & V8 Sterndrive Gearcase MSRP: Was: Now: $1,065.99 Choose Options
SEI New SEI / Mercruiser 1972-1990 4-CYL/V6/V8 R/MR/ & Alpha 1 Complete Sterndrive Assembly MSRP: Was: Now: $1,935.00 Choose Options
SEI New SEI / Mercruiser 1972-1982 4-CYL/V6/V8 R/MR/ & Alpha 1 (Short Yoke) Complete Sterndrive Assembly MSRP: Was: Now: $1,935.00 Choose Options
SEI New SEI / Mercruiser Alpha One Gen I Bellows Repair Kit (With Ridge) – Fits 1972–1991 R, MR, & Alpha 1 Drives – Replaces OEM #30-803097T1 MSRP: Was: Now: $87.95 Choose Options
SEI New SEI / Mercruiser 1984-1990 Alpha 1 4-CYL/V6/V8 Complete Counter-Rotation Sterndrive Assembly MSRP: Was: Now: $1,935.00 - $2,165.00 Choose Options
SEI New SEI / Mercruiser 1984-1990 Alpha 1 4-CYL/V6/V8 Complete Counter-Rotation (Short Yoke) Sterndrive Assembly MSRP: Was: Now: $2,165.00 Choose Options
SEI New SEI / Mercruiser 1972-1991 Alpha 1 Gen 1 Lower Gearcase Housing New SEI 1972-1991 Mercruiser Alpha 1 Gen 1 Gearcase Housing. 3.50" O.D. Forward Bearing. Replaces OEM number 1623-8951A37. SHIPPING: Additional shipping fees to Alaska, Hawaii, US Territories, or...
SEI New SEI / Mercruiser Alpha 1 & Alpha 1 Gen II Shift Cable Kit – Fits 1972–Present R, MR, Alpha 1 & Gen II Drives – Replaces OEM #19543A4 This SEI Marine Shift Cable Kit is designed for Mercruiser Alpha 1 and Alpha 1 Gen II sterndrives (1972–Present), including R and MR models. It directly replaces OEM part numbers 19543A4 and... MSRP: Was: Now: $49.50 Choose Options
SEI New SEI / Mercruiser Alpha I Hose & Hardware Kit (1972–1992) – For 15-9/16" Trim Cylinders – Includes Hoses & Mounting Hardware This SEI Marine Hose & Hardware Kit is designed for Mercruiser Alpha I sterndrives (1972–1992) equipped with 15-9/16" trim cylinders. It includes both hydraulic trim hoses and all necessary... MSRP: Was: Now: $187.00 Add to Cart
SEI New SEI / Mercruiser Alpha 1 Hose & Hardware Kit (1972–1992) – For External Line Trim Cylinders – Includes Hoses & Mounting Hardware – Replaces SEI 9B-102 This SEI Marine Hose & Hardware Kit is designed for Mercruiser Alpha 1 sterndrives (1972–1992) equipped with external line trim cylinders. The kit includes all necessary hydraulic hoses and... MSRP: Was: Now: $187.00 Add to Cart
SEI New SEI / Mercruiser Alpha 1 16-3/16" Trim Cylinder (Port or Starboard) – Fits 1972–1991 Alpha One Drives – Replaces OEM #14034A3 / 14035A3 This SEI Marine Trim Cylinder is a direct replacement for Mercruiser Alpha One sterndrives manufactured from 1972–1991. Designed for 16-3/16" cylinder applications, this unit replaces both port... MSRP: Was: Now: $176.00 Choose Options
SEI New SEI / Mercruiser Alpha 1 Trim Cylinder – 15-9/16" Long – Replaces OEM #98703A3 / 98703A4 This SEI Marine Trim Cylinder is designed for Mercruiser Alpha 1 sterndrives (1972–1991) using the 15-9/16" long trim cylinder. It can be used on either the port or starboard side, replacing... MSRP: Was: Now: $176.00 Choose Options
SEI New SEI / Mercruiser Alpha 1 External Line Trim Cylinder (1972–1991) – Fits Port or Starboard – Replaces OEM #32-87234 This SEI Marine External Line Trim Cylinder is a direct replacement for Mercruiser Alpha 1 sterndrives (1972–1991). Designed to fit either port or starboard, it replaces OEM part numbers... MSRP: Was: Now: $176.00 Choose Options
SEI New SEI / MerCruiser Alpha One Lower Gear Set (1972–1990) – 1.62:1 Ratio – Counter Rotation – Replaces OEM 812975A5 / 824700A1 This SEI Marine Counter-Rotation Lower Gear Set is a precision-engineered replacement for MerCruiser Alpha One sterndrives manufactured from 1972 to 1990. Featuring a 1.62:1 gear ratio, this set... MSRP: Was: Now: $591.72 Choose Options
SEI New SEI / MerCruiser Alpha One Upper Gear Set (1972–1990) – 5.7L V8 – 1.47 / 1.50 Ratio – Replaces OEM 43-18410A4 This SEI Marine Upper Gear Set is engineered as a direct replacement for MerCruiser Type I, R, MR, and Alpha One sterndrives from 1972–1990, designed specifically for 5.7L V8 engines. Featuring... MSRP: Was: Now: $367.28 Choose Options
SEI New SEI / Mercruiser 1972-1990 Alpha 1 Upper Sterndrive Assembly (9 9/16" Input Yoke) # 90-106-01A This listingis for a SEI / Mercruiser Alpha 1 1972-1990 Upper Unit With 9 9/16th New Style Input Yoke. Replaces OEM Number 9412A23, 9412A20, 9412A21, 9412A22. Replaces R, MR, Alpha... MSRP: Was: Now: $965.00 Choose Options
SEI New SEI / Mercruiser 1972-1990 Alpha 1 Upper Sterndrive Assembly (8 1/8" Short Yoke) SEI Mercruiser Alpha 1 1972-1990 Upper Unit With 8 1/8" Short Yoke. Replaces OEM Number 5523A65, 5523A67, 5523A66. Replaces R, MR, Alpha One lowers from 1972-1990, 13 Spline Driveshaft,... MSRP: Was: Now: $965.00 Choose Options
SEI New SEI / Mercruiser 1972-1990 Alpha 1 4 CYL, V6 and V8 Counter-Rotation Gearcase New SEI Mercruiser Alpha 1 1972-1990 Counter Rotation Lower Unit. Replaces OEM Number 8951A43. Will fit 4 cylinder, V6 and V8 engines. Will not work for Alpha 1 GEN II drives. Replaces R, MR, Alpha... MSRP: Was: Now: $1,175.00 Choose Options
SEI New SEI / Mercruiser Alpha 1 1972-1990 4 CYL, V6 & V8 Sterndrive Gearcase New SEI Mercruiser Alpha 1 1972-1990 Lower Unit. Replaces OEM Number 8951A43. Will fit 4 cylinder, V6 and V8 engines. Will not work for Alpha 1 GEN II drives. Replaces R, MR, Alpha One lowers from... MSRP: Was: Now: $1,065.99 Choose Options
SEI New SEI / Mercruiser 1972-1990 4-CYL/V6/V8 R/MR/ & Alpha 1 Complete Sterndrive Assembly Replaces most Mercruiser Sterndrives 228 HP and up from 1974-1990. 3 Year fault free warranty carried by manufacturer (click HERE for details). Comes with a 9-9/16 new style input yoke. If your... MSRP: Was: Now: $1,935.00 Choose Options
SEI New SEI / Mercruiser 1972-1982 4-CYL/V6/V8 R/MR/ & Alpha 1 (Short Yoke) Complete Sterndrive Assembly New SEI Mercruiser Alpha 1 Gen 1 (1967-1982) Complete Standard Rotation (Short Yoke) Sterndrive. Ships in two boxes. Comes with a 8-1/8 old style input yoke. Does not include Complete Install Kit or... MSRP: Was: Now: $1,935.00 Choose Options
SEI New SEI / Mercruiser Alpha One Gen I Bellows Repair Kit (With Ridge) – Fits 1972–1991 R, MR, & Alpha 1 Drives – Replaces OEM #30-803097T1 This SEI Marine Bellows Repair Kit (With Ridge) is designed for Mercruiser Alpha One Gen I sterndrives (1972–1991), including R and MR models equipped with exhaust bellows. The kit replaces OEM... MSRP: Was: Now: $87.95 Choose Options
SEI New SEI / Mercruiser 1984-1990 Alpha 1 4-CYL/V6/V8 Complete Counter-Rotation Sterndrive Assembly New SEI Mercruiser Alpha 1 Gen 1 (1984-1990) Complete Counter Rotation Sterndrive. Ships in two boxes. Comes with a 9-9/16 new style input yoke. Does not include Complete Install Kit or Anode Kit... MSRP: Was: Now: $1,935.00 - $2,165.00 Choose Options
SEI New SEI / Mercruiser 1984-1990 Alpha 1 4-CYL/V6/V8 Complete Counter-Rotation (Short Yoke) Sterndrive Assembly New SEI Mercruiser Alpha 1 Gen 1 (1984-1990) Complete Counter Rotation (Short Yoke) Sterndrive. Ships in two boxes. Comes with a 8-1/8 input yoke. Does not include Complete Install Kit or Anode Kit... MSRP: Was: Now: $2,165.00 Choose Options
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