SEI New SEI / Mercruiser 1972-1990 Alpha 1 4.3L V6 1.81 Upper Gear Set OEM # 43-75325A3 MSRP: Was: Now: $218.98 Choose Options
SEI New SEI / Mercruiser Alpha 1 1972-1990 3.0L 4 CYL 1.94 / 2.40 Ratio Upper Gear Set MSRP: Was: Now: $206.95 Choose Options
SEI New SEI / Mercruiser Alpha 1 & Alpha 1 Gen II 1973 - Present Lower Unit Clutch Dog MSRP: Was: Now: $112.03 Choose Options
SEI New SEI / Mercruiser 1972-1990 Alpha 1 Upper Sterndrive Assembly (9 9/16" Input Yoke) # 90-106-01A MSRP: Was: Now: $875.00 Choose Options
SEI New SEI / Mercruiser 1972-1990 Alpha 1 Upper Sterndrive Assembly (8 1/8" Short Yoke) MSRP: Was: Now: $875.00 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 MR / Alpha 1 Sterndrive Driveshaft OEM # 45-42634 MSRP: Was: Now: $297.35 Choose Options
SEI New SEI / Mercruiser 1972-1990 Alpha 1 Counter-Rotation Lower Unit Propshaft OEM # 814606 1 MSRP: Was: Now: $289.31 Choose Options
SEI New SEI / Mercruiser 1972-Present Alpha 1 & Alpha 1 Gen II Ratcheting Shift Spool MSRP: Was: Now: $55.99 Choose Options
SEI New SEI / Mercruiser 1972-1982 Alpha 1 Short Yoke U-Joint Assembly OEM # 58858A1 MSRP: Was: Now: $287.99 Choose Options
SEI New SEI / Mercruiser 1972-Present Alpha 1 & Alpha 1 Gen II Complete U-Joint Assembly MSRP: Was: Now: $287.99 Choose Options
SEI New SEI / Mercruiser 1972-1990 Alpha 1 Short Input Yoke Shaft 8 1/8" MSRP: Was: Now: $94.93 Choose Options
SEI New Sterndrive Engineering Mercruiser 1972-1990 Alpha 1 Heavy Duty U-Joint MSRP: Was: Now: $36.70 Choose Options
SEI New SEI / Mercruiser 1972-1990 Alpha 1 Engine End Yoke Shaft 9 9/16" MSRP: Was: Now: $88.99 Choose Options
SEI New SEI / Mercruiser 1972-Present Alpha 1 & Alpha 1 Gen II 6 Jaw Propshaft MSRP: Was: Now: $289.31 Choose Options
SEI New SEI / Mercruiser 1986 & Up Alpha 1 & Alpha 1 Gen II Stainless Steel Trim Pump Assembly MSRP: Was: Now: $400.00 Choose Options
SEI New SEI / Mercruiser 1986 & Up Alpha 1 & Alpha 1 Gen II Trim Pump Assembly MSRP: Was: Now: $300.00 Choose Options
SEI New SEI / Mercruiser 1991-2003 Alpha 1 Gen II 4-CYL/V6/V8 Complete Sterndrive Assembly MSRP: Was: Now: $1,905.00 Choose Options
SEI New SEI / Mercruiser 1972-1990 4-CYL/V6/V8 R/MR/ & Alpha 1 Complete Sterndrive Assembly MSRP: Was: Now: $1,705.00 Choose Options
SEI New SEI / Mercruiser Bravo I, II & III Sterndrive Bellows Repair Kit OEM # 30-803100T1 MSRP: Was: Now: $120.00 Choose Options
SEI New SEI / Mercruiser 1992-Up Alpha 1 Gen II Bellows Repair Kit OEM # 30-803099T1 MSRP: Was: Now: $120.00 Choose Options
SEI New SEI / Mercruiser 1972-1991 Alpha 1 Transom Bellows Repair Kit MSRP: Was: Now: $120.00 Choose Options
SEI New SEI / Mercruiser Bravo I Complete Sterndrive Assembly w/Side Water Inlet MSRP: Was: Now: $3,225.00 Choose Options
SEI New SEI / Mercruiser 1995-2015 Bravo 1 Lower Gearcase w/ Oil Passage & Dual Water Pick-Ups MSRP: Was: Now: $1,175.00 Choose Options
SEI New SEI / Mercruiser 1972-1990 Alpha 1 4.3L V6 1.81 Upper Gear Set OEM # 43-75325A3 New SEI Mercruiser Alpha 1 1972-1990 4.3L V6 1.81 Ratio Upper Gear Set. Replaces OEM number 43-75325A3. Fits Type I, R, MR, Alpha I drives. Three year fault free warranty. SHIPPING: Additional... MSRP: Was: Now: $218.98 Choose Options
SEI New SEI / Mercruiser Alpha 1 1972-1990 3.0L 4 CYL 1.94 / 2.40 Ratio Upper Gear Set New SEI Mercruiser Alpha 1 1972-1990 3.0L 4 CYL 1.94 / 2.40 Ratio Upper Gear Set. Replaces OEM number 43-55778A3. Fits Type I, R, MR, Alpha I drives. Three year fault free warranty. SHIPPING:... MSRP: Was: Now: $206.95 Choose Options
SEI New SEI / Mercruiser Alpha 1 & Alpha 1 Gen II 1973 - Present Lower Unit Clutch Dog New SEI Mercruiser Alpha 1 & Alpha 1 Gen II 1973 - Present Lower Unit Clutch Dog. Replaces OE#'s 52-853594T and 52-853594. Three year fault free warranty. SHIPPING: Additional shipping fees to... MSRP: Was: Now: $112.03 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. Available with the following ratios: 3.0L 4 CYL 1.94 Ratio, 4.3L V6... MSRP: Was: Now: $875.00 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. Available with the following ratios: 3.0L 4 CYL 1.94 Ratio, 4.3L V6 1.81 Ratio and 5.0L V8 1.62 Ratio... MSRP: Was: Now: $875.00 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 MR / Alpha 1 Sterndrive Driveshaft OEM # 45-42634 New SEI Mercruiser 1972-1990 MR / Alpha 1 Driveshaft. Replaces OEM Number 45-42634. Fits Mercruiser MR and Alpha I drives 1982 to 1990 (Serial #0D469858 and below). Driveshaft for SE106. Three year... MSRP: Was: Now: $297.35 Choose Options
SEI New SEI / Mercruiser 1972-1990 Alpha 1 Counter-Rotation Lower Unit Propshaft OEM # 814606 1 New SEI Mercruiser 1972-1990 Alpha 1 Counter Rotation Propshaft. Replaces OEM Number 814606 1. Three year fault free warranty (click HERE for details). SHIPPING: Additional shipping fees to Alaska,... MSRP: Was: Now: $289.31 Choose Options
SEI New SEI / Mercruiser 1972-Present Alpha 1 & Alpha 1 Gen II Ratcheting Shift Spool New SEI Mercruiser 1972-Present Alpha 1 & Alpha 1 Gen II Ratcheting Shift Spool. Replaces OEM Number 818349T1. Fits Mercruiser I, R, MR, Alpha I and Gen II drives, 1972 - Present. Three year... MSRP: Was: Now: $55.99 Choose Options
SEI New SEI / Mercruiser 1972-1990 Alpha 1 Shift Shaft New SEI Mercruiser 1972-1990 Alpha 1 Shift Shaft. Replaces OEM Number 77481 1. Three year fault free warranty (click HERE for details). Fits Mercruiser I, R, MR, and Alpha I drives, 1973 -... MSRP: Was: Now: $26.99 Choose Options
SEI New SEI / Mercruiser 1972-1982 Alpha 1 Short Yoke U-Joint Assembly OEM # 58858A1 New SEI Mercruiser 1972-1982 Alpha 1 Complete U-Joint Assembly with Short Yoke. Replaces OEM Number 58858A1. Three year fault free warranty (click HERE for details). Fits Mercruiser I, R, MR, Alpha I... MSRP: Was: Now: $287.99 Choose Options
SEI New SEI / Mercruiser 1972-Present Alpha 1 & Alpha 1 Gen II Complete U-Joint Assembly New SEI Mercruiser 1972-1990 Alpha 1 Complete U-Joint Assembly. Replaces OEM Number 814819A2. Fits Mercruiser I, R, MR, Alpha I and Gen II drives with 9-9/16" engine end yoke. OE# 814819A 2. Three... MSRP: Was: Now: $287.99 Choose Options
SEI New SEI / Mercruiser 1972-1990 Alpha 1 Short Input Yoke Shaft 8 1/8" New SEI Mercruiser 1972-1990 Alpha 1 Short Input Yoke Shaft 8 1/8". Replaces OEM Number 39385A1. Fits Old Style inline 4 and inline 6 cylinder engines. Yoke measures 8-1/8 Inches. Three year fault... MSRP: Was: Now: $94.93 Choose Options
SEI New Sterndrive Engineering Mercruiser 1972-1990 Alpha 1 Heavy Duty U-Joint New SEI Mercruiser 1972-1990 Alpha 1 Heavy Duty U-Joint. Replaces OEM Number 3850812. Three year fault free warranty (click HERE for details). Greaseable. 1970 to 1997. Also Fits OMC Cobra, Joint... MSRP: Was: Now: $36.70 Choose Options
SEI New SEI / Mercruiser 1972-1990 Alpha 1 H-Yoke New SEI Mercruiser 1972-1990 Alpha 1 H-Yoke. Replaces OEM Number 0912213. Serial number OK999999 and below. Three year fault free warranty (click HERE for details). SHIPPING: Additional shipping... MSRP: Was: Now: $43.72 Choose Options
SEI New SEI / Mercruiser 1972-1990 Alpha 1 Short Yoke Shaft New SEI Mercruiser 1972-1990 Alpha 1 Short Yoke Shaft. Replaces OEM Number 46020 1. Serial number OK999999 and below. Three year fault free warranty (click HERE for details). SHIPPING: Additional... MSRP: Was: Now: $64.80 Choose Options
SEI New SEI / Mercruiser 1972-1990 Alpha 1 Engine End Yoke Shaft 9 9/16" New SEI Mercruiser 1972-1990 Alpha 1 Engine End Yoke Shaft. 9 9/16". Replaces OEM Number 0912212. Fits: All V6 and V8 engines and In-line engines newer than 1983. Three year fault free warranty... MSRP: Was: Now: $88.99 Choose Options
SEI New SEI / Mercruiser 1972-Present Alpha 1 & Alpha 1 Gen II 6 Jaw Propshaft New SEI Mercruiser 1972-Present Alpha 1 Gen II 6 Jaw Standard Rotation Propshaft. Replaces OEM Numbers 44-850308 and 44-824110. Will also fit: Mercury Outboard 70-125 HP Inline 3 & 4 cylinder... MSRP: Was: Now: $289.31 Choose Options
SEI New SEI / Mercruiser Alpha 1 1972-1990 Driveshaft New SEI Mercruiser Alpha 1 1972-1990 Driveshaft. Replaces OEM Number 45-55796. Will not work for GEN II drives. Three year fault free warranty (click HERE for details). SHIPPING: Additional shipping... MSRP: Was: Now: $69.99 Choose Options
SEI New SEI / Mercruiser 1986 & Up Alpha 1 & Alpha 1 Gen II Stainless Steel Trim Pump Assembly New SEI Mercruiser Sterndrive Stainless Steel Trim Pump. Will fit from 1986-Present Alpha 1 and Alpha 1 Gen II Sterndrives. Replaces OEM Number 865380A25. You can use the fittings from your old pump... MSRP: Was: Now: $400.00 Choose Options
SEI New SEI / Mercruiser 1986 & Up Alpha 1 & Alpha 1 Gen II Trim Pump Assembly New SEI Mercruiser Sterndrive Trim Pump. Will fit from 1986-Present Alpha 1 and Alpha 1 Gen II Sterndrives. Replaces OEM Number 865380A25. You can use the fittings from your old pump for quick... MSRP: Was: Now: $300.00 Choose Options
SEI New SEI / Mercruiser 1991-2003 Alpha 1 Gen II 4-CYL/V6/V8 Complete Sterndrive Assembly Replaces most Mercruiser Sterndrives from 1991-2003. Up to 300 HP. 3 Year fault free warranty carried by manufacturer. Ships in two boxes. Does not include Complete Install Kit or Anode Kit. You can... MSRP: Was: Now: $1,905.00 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: $1,705.00 Choose Options
SEI New SEI / Mercruiser Bravo I Propshaft OEM # 41630T This listing is for a New SEI / Mercruiser Bravo I Propshaft OEM # 41630T. NOTE: All items for a rebuild are available for order, though they are not necessarily listed on this website. If you need... MSRP: Was: Now: $402.53 Choose Options
SEI New SEI / Mercruiser Bravo I, II & III Sterndrive Bellows Repair Kit OEM # 30-803100T1 New SEI Mercruiser Bravo I, II and III Bellows Repair Kit. Replaces OEM number 30-803100T1. SHIPPING: Additional shipping fees to Alaska, Hawaii, US Territories, or International Shipping will be... MSRP: Was: Now: $120.00 Choose Options
SEI New SEI / Mercruiser 1992-Up Alpha 1 Gen II Bellows Repair Kit OEM # 30-803099T1 This listing is for a New SEI Mercruiser 1992-Present Alpha 1 Gen II Transom Bellows Repair Kit. Replaces OEM number 30-803099T1. This has a greaseable bearing. If your transom does not have a way to... MSRP: Was: Now: $120.00 Choose Options
SEI New SEI / Mercruiser 1972-1991 Alpha 1 Transom Bellows Repair Kit This listing is for a New SEI Mercruiser 1972-1991 Alpha 1 Gen 1 Transom Bellows Repair Kit with Ridge. Replaces OEM number 30-803097T1. Will fit R, MR and Alpha 1 with exhaust bellows. SHIPPING:... MSRP: Was: Now: $120.00 Choose Options
SEI New SEI / Mercruiser Bravo I Complete Sterndrive Assembly w/Side Water Inlet This listing is for a New SEI / Mercruiser Bravo I Complete Sterndrive Assembly with side water inlet. Not a replacement for Bravo X,XR or XZ drives. Rated for up to 425HP. Complete... MSRP: Was: Now: $3,225.00 Choose Options
SEI New SEI / Mercruiser 1995-2015 Bravo 1 Lower Gearcase w/ Oil Passage & Dual Water Pick-Ups New SEI 1995-Present Mercruiser Bravo 1 lower gearcase with dual water pick-ups. Gearcase has oil passage. Replaces OEM number 8866A15. Will work with all three gear ratios. (1.36, 1.50 & 1.65) ... MSRP: Was: Now: $1,175.00 Choose Options
Receive Discounts. Join Our Newsletter. Get the latest updates on new products and upcoming sales Email Address
