1990 alpha one outdrive. Just make sure what drive it is- MR-1, Alpha 1 Gen I or Alpha 1 Gen II. The engine connects to the MerCruiser Alpha One sterndrive with drive ratios of 1. Mercruiser Alpha One generation 2 oil fill and 3/8 inch thread repair step by step help. 94 ratio. 1. Jun 11, 2024 · Mercruiser alpha one gen one outdrive for Sale in Virginia Beach, VA. SEI Drive Installation Sterndrive Engineering SE106 drive. Obviously there ar Download Complete Service Repair Manual for 1983-1990 Mercury Mercruiser Sterndrive Units R, MR, Alpha One, Alpha One SS. Sep 2, 2011 · Buy MEGAWARE KEELGUARD SkegGuard 27021 - Protects Against Ramp Dragging and Everyday Wear and Tear - Skeg Protector with Drain Hole - Easy to Install - Fits Mercury MerCruiser Alpha 1 1985-1990: Dock Guards - Amazon. Sterndrive Engineering Replacement Drive, Old Style R , MR , Alpha One. 3 year No Fault warranty! Ships from Florida warehouse in two boxes. II) 1991-1995 Engine & Stern Drive by All Engine Parts & Diagrams Revise Search: All Models > Alpha One (Gen. Sierra 18-2619-1 Mercruiser Outdrive Gasket Set Sierra high quality engine parts are designed to meet or exceed OEM requirements. 65 Gear Ratio - New here. View parts diagrams and shop online for 430B00001 : 1990 Stern Drive 3. Electronics / Marine ( 416 ) 751-7326 home page Regular inspection and maintenance will help to ensure optimal performance and longevity of the sterndrive system. GLM Marine part number: 21710 OEM number: 41951A1. A 1. Generation 1 (thru 1990) and Generation 2 (1991 and up). 88020 Sterndrive pump 1984-1990. 32:1 Ratio 20/16 1984-1990. Complete U Joint Assembly containing greasable u-joints. 4:1, it runs on 87 octane gasoline. Water Pump Service Kit for 1983-91 MerCruiser R/MR/Alpha One gearcases. Replaces R, MR, Alpha One lowers from 1972-1990; 13 Spline Driveshaft SEI Marine SE106 Mercruiser Alpha One Gen 1 Outdrive Standard Rotation. This Mercruiser sterndrives alpha one generation 1 unit is a replacement for 165-205 HP and up from 1976-1990. Offering discount prices on new and remanufactured assemblies for over 50 years. Web site pages are designed for the factory certified technician, the boat mechanic or just boating enthusiasts performing their own repair work. 4L 150XR4 175/200 HP 1983-1990; Outboard & Sterndrive Gearcase Break-In Instructions; Alpha 1 Parts Diagrams. Alpha drives slice through the water with an efficient hydrodynamic profile producing very little drag. Alpha One Gen 2 Sterndrive Price on Request – Marine Engines UK. This Alpha 1 - GEN 1 sterndrive earned the title of “world’s most popular sterndrive” because it delivers reliable performance in a value package. Fits alpha ones and Mr without preload pin ; Replaces: GLM # 12120 Mercruiser # 46-44292A5 & 46-96148A8 Mallory Marine # 9-48307 For Alpha one's and MR S/N: 6854393 - OD469858 Jun 2, 2024 · P/N 11210 Outdrive upper unit gear set, ratio 20/22. Alpha One Generation 1 Outdrive 1984-1992; Alpha One Generation 2 Outdrive 1992+ Alpha Generation 2 model was introduced in 1991 and is currently still in production. 50 or 1. Aug 14, 2017 · New Sierra #18-3320 water pump kit for Alpha 1 Gen 1 & MR outdrives. 62 gear ratio sounds right for a 5. Alpha one gen ii aluminum anode kit with finMercruiser gear assy driveshaft none Marine parts plus mercruiser serial r-mr-alpha P/N 11210 Outdrive upper unit gear set, ratio 20/22. Mercruiser Alpha One Gen One stern drives were produced from 1984-1990. The gearcase on the Alpha SS is identical to the CLE gearcase on Merc racing outboards. 1 (1978-1990 Alpha mercruiser upper gen sterndrive assembly parts drive diagram 1984 right modelsAlpha mercruiser gen transom sterndrive bell 1998 mercury listed equivalent aftermarket volvo. Jul 18, 2012 · Hello to everyone. 81 / 1. Please verify your serial number to be sure if you have a Gen 1 or Gen 2 drive. The alpha One Generation 1 drive uses a plastic water pump housing . However, like any mechanical device, regular maintenance is essential to keep it running smoothly. 47 ratio Serial numbers 3106717 - 0K999999. 1972 - 1990. Fits Mercruiser I, R, MR, Alpha I and Gen II drives with 9-9/16"" engine end yoke OE# 814819A MerCruiser Alpha One - GEN I Outdrive in stock with a 1-year MerCruiser warranty. Feb 12, 2024 · Mercruiser r / mr / alpha one (sterndrive) 1983-1990 gear housingUnderstanding the alpha one sterndrive parts diagram: a comprehensive guide Stern unit drive chart section hover larger drawing click hardin marineUnderstanding the alpha one sterndrive parts diagram: a comprehensive guide. Electrical components are powered by a 65 amp, 917 watt alternator. Our complete Upper & Lower Unit are replacements for Mercruiser R/MR/Alpha One Generation 1 1972-1990 gear ratio 1. 3 Mercruiser, Alpha 1 outdrive. : 3/4" Length: 11-1/8" Interchangeable Add to Cart R/MR/ALPHA ONE (Sterndrive) 1983-1990 6225577 THRU 0D469858; R/MR/ALPHA ONE (Transom Assembly) 1983-1990 6216687 THRU 0D469858; SCORPION 350 0W698433 & Up Parts for MerCruiser R / MR / Alpha One (Transom Assembly) 1983-1990 Gimbal Ring & Steering Lever Revise Search: All Models > R / MR / Alpha One (Transom Assembly) 1983-1990 > 6216687 - 0D469858 > Gimbal Ring & Steering Lever May 4, 2024 · Mercruiser bravo outdrive ratio oem colasReservdelar underhus mercruiser alpha one gen. Go (800) 209-9624 M-F 9-5 ET For Alpha One® Gen I Sterndrives (1972-1990) For Alpha One® Gen I Sterndrive Applications; Counter Rotation. I believe the Alpha SS was only made on 1985-1987 and discontinued when the Bravo came out in 1988. Find 1969-1990 Alpha One Complete Driveshaft Assembly -- 1. Available in Standard Rotation and Counter Rotation (CR added to SKU number) 3 Year Warranty. For a Mercruiser Sterndrive Replacement, call us at 954-271-7183. Also worth noting is the shift lever. Download. Replaces MerCruiser Gen 1 alpha outdrives 1974-1990. OMC Parts Drawing *Cobra *Mercruiser *Alpha SEI Outdrives. P/N 85420 May 21, 2022 · I show you how to replace and change your impeller on your boat with a Mercury Mercruiser Alpha 1 or 2 Generation sterndrive outdrive. D. I. Brand New complete drive. pdf Nov 3, 2023 · Marine parts plus mercruiser serial alpha one gen. 0L [ALPHA I]. Choose your drive below then choose your ratio. Johnson/Evinrude outboard water pump kits 1967 to 1983 Alpha 1 P/N 88020 Water pump housing, impeller and outdrive seal kit set $119. This Factory Service Repair Manual offers all the service and repair information about 1983-1990 Mercury Mercruiser Sterndrive Units R, MR, Alpha One, Alpha One SS. Alpha Generation 1 model production began in 1983 and ran through 1990. Assemble outdrive engine stand https://youtu. Before removal I noticed a bit of slop in the steering pin. Comes with a 9-9/16 new style input yoke. Check here Mercruiser bell housing layout. I’m tearing it apart. 81/1. May 25, 2008 · 89 Sea Ray with 5. A shift interrupter switch connects to the shift plate and stalls the engine when you shift in and out of gear to help prevent damage to the stern drive. 99 Mar 24, 2021 · This is a quick video I made showing how to tell the difference between Alpha One Gen 1, Alpha One Gen 2, and Bravo Mercruiser Outdrives. Then get the appropriate kit. Mercruiser sterndrive transom plate and lower unit shift cable parts drawing for Alpha one and generation 2 outdrives. 47, 1. Gen 2's dont have this. You should change your About Sterndrive Replacement. 7, but the seller of the drive says it came off a 3. The alpha One Generation 2 uses a stainless steel housing. Proud of our excellent service, we are able to ship a brand new water pump at your door in one business week with a one year warranty free of charge. Low and behold it tightened up solid and no more slop. Replace alpha outdrive bellows (PART 1) https://youtu. 95 Includes P/N 21560 roller bearing 31-32573A1. The MerCrusier Bravo Series sterndrives – Bravo 1, Bravo 2 and Bravo 3 – are upgrades from the Alpha One and feature the latest innovations in boat outdrive performance. We carry parts for Mercruiser inboard, Mercruiser stern drive and Mercruiser outdrive. be/gLBQvjiYaEk2. Aug 12, 2023 · Alpha One years 1984 to 1990; Alpha One Gen II years 1991 and up; Need more R MR sterndrive information or photos, please see the I need help drawings page. 3 is 1. P/N 12120 Outdrive water pump kit for 1984 - 1990 Alpha One Gen 1 lower units. Mar 14, 2024 · Mercruiser alpha one gen i upper outdrive 1. During services I routinely find pickup differentials with white milky oil in them. Aug 1, 2017 · Complete Replacement Outdrive for Mercruiser R, MR, and Alpha One. Replaces OEM and Sierra 18-3320. 3 liter V6. 7 Mercruiser, Alpha 1 outdrive and Quicksilver shifter. Illustrations to identify outdrive components with technical support by phone. I earn from qualifying purchases. I am new to boating (as an owner that is). For Alpha One Outdrives (1990-1994) Kit Includes: Drive Installation Gasket / O-Ring Kit; Aluminum Anode Kit; Gearcase Drain Plug Seals; Transom Repair Kit; Shift Cable Replaces MerCruiser Gen 1 alpha outdrives 1974-1990. II) 1991-1995 Alpha One (Gen. C. Sep 4, 2023 · I’m rebuilding my 1990 Alpha 1 Gen 1 outdrive. 5 days ago · OMC 400, 800, Stringer and Cobra sterndrive repair parts. 0, which uses a 1. 94 Generation 1 & 2. kirkll Regular Contributor. (31 N·m). The usual (all the ones I know of) drive ratio for a 4. MerCruiser Bravo 1, Bravo 2 and Bravo 3 Outdrives. Upper gears compatible with all V8 outdrives (1971 - 1990) and Alpha One gen ii models 1991-1997. 7L, 5. 65:1, 1. New Outboard Parts. Lookup MerCruiser r/mr/alpha one (sterndrive) 1983-1990 engine & stern drive by serial number range and buy discount parts from our large online inventory. 120 HP (1990-1994) Back; 120 HP (1990-1994) - 0E000001 THRU 0E093699; NOTE: When using the Alpha One Sterndrive Assembly as a replacement on earlier (pre 1983) 4 Alpha One & Gen 2 Outdrive Parts *Drawings *Videos. With a compression ratio of 9. 5:1, 1. Jun 2, 2024 · GLM Marine Aftermarket Mercruiser Alpha One parts for upper gearcase. Compatible with serial numbers 6854393-OD469858. 84 gear ratio with a 17-19 tooth count Sep 11, 2023 · If interested in purchasing this product, visit our Amazon affiliate link below. P/N SE109 SEI Marine aftermarket lower unit replacement outdrive complete assembly years 1972 to 1990 $1125. Sterndrive from 1980-1982 485 HP. 62:1 and 1. Alpha Transoms are here. (Read More) since 2002. The MerCruiser Alpha One has a 300 HP (221 kW) maximum power capacity with a 15” diameter propeller. The information on this manual covered everything you need to know when Sierra 18-9099 Mercruiser Trailering Clips Sierra high-quality trailering clips for Mercruiser Drives. Lookup MerCruiser r/mr/alpha one (sterndrive) 1983-1990 engine & stern drive by component and buy discount parts from our large online inventory. Mercruiser R/MR/Alpha One Gen 1 complete upper unit; Years 1976 - 1982 models with 4 cylinder; 470 / 485 models and 1986 - 1990; 4. 98:1 ratio 20/24 1984-1990. Removed bushings and replacing seals. In stock and ready to ship. Replaces Mercruiser Sterndrive R/MR/Alpha One 1983-1990 Typical Mercruiser Sterndrive engine liter applications from 1983-1990 include 5. Alpha One & Gen 2 Outdrive Parts *Drawings *Videos. SEI Mercruiser Alpha One Gen 2 outdrives. Check Details. alpha One Generation 1 drive does not have the “L” shaped lever whereas the alpha One Generation 2 drive does . com 184 Jones Drive Brandon, VT 05733 USA (800) 209-9624 (802) 247-4700 (802) 419-3055 Fax Mercruiser Impeller replacement on a Alpha one Generation 1. 3L) [PDF, ENG, 12 MB]. Outdrive exploded view parts numbers 1 to 41. R/MR/Alpha One 1983-1990. Com O ur new engine sales department will make sure your order is exact and that you get the engine(s) that is right for you. II) 1998 & Up Bravo One Bravo Two Jul 20, 2023 · Seloc manuals for Alpha one or generation 2; Complete rebuild package for 1. (1990-1994) - 0E000001 THRU 0E093699; Mercruiser Gas Sterndrive & Inboard Oil Capacity Chart. Mercruiser Sterndrive 1977 250 HP. 90-106-02. 98:1. MerCruiser Alpha Outdrives. Gen 1 has the two nuts inside pockets near the front of the drive. Comes standard with a 9-9/16 new style input yoke Does not include Complete Install Kit or Anode Kit Up to 300 HP (SEI does not warranty applications over 300 HP) Replaces Mercruiser Sterndrive R/MR/Alpha One 1983-1990 Compatible with all Mercruiser outdrives, including Alpha 1 and Bravo; Internal and external lock rings For 1973 and 1990, serial numbers 3469428 to 0D469858 P/N 12120 Mercruiser Alpha One Gen 1 impeller water pump kit, for 1984-1990 models, serial numbers 6854393-OD469858. Title. Bellows replacement kit: https://amz The MerCruiser stern drive's shift cable connects the driver controls to the shift control plate. There are 2 versions of the Alpha 1. 81:1. Featuring a sleek, hydrodynamic profile, the Alpha One® drive is a staple in the sterndrive market. Designed for boats capable of up to 65 mph and gas engines delivering up to 300hp. II) 1996-1997 Alpha One (Gen. My family purchased a very nice 1990 Bayliner Capri earlier this year and discovered that the outdrive would not take in water. 32:1 ratio 20/16 1984-1990 Buy mercruiser oil resovoir external tank for gear oil / outdrive oilAlpha gen mercruiser outdrive 1984 ratio 1990 inspected upper. 2 - 4 Alpha One Generation II Sterndrive 90-806534970 1096 Power Steering Hose Connections 73786 a Typical Hose Routing a - Hose Fittings - Torque Both Fittings to 23 lb. Sterndrive Engineering Replacement Lower Unit Mercruiser R, MR, and Alpha One. Complete outdrive units now available from SEI aftermarket parts. New style cable with large core wire. Alpha One Gen II Complete OutDrive - Fat Boyz Kustoms & Marine. P/N SEI-106-1. Alpha-1_Gen-2 Mercruiser Alpha Generation 2 impeller water pump kit for 1991 and up lower unit gear-cases. . Gen 1 Water pump kit from this site, Also you should replace the lower pump base if it has not been replaced in a few years. *Compatible with models from late 1983 to 1990 MerCruiser Alpha One Gen 1 Outdrive Complete Lower Unit with Upper Mercruiser Propshaft 44-850308 44-824110 Alpha One Gen I Gen II (1972-1990) Opens in a new PPT has been providing the Marine Industry with both New & Remanufactured Mercruiser Sterndrives…. FAST $4. Time-tested by countless afternoons on the water, its fluid handling and efficient design have earned it a reputation for reliability. Long story short, started tearing into the outdrive and found the impeller to be seized to the drive R / MR / Alpha One (Sterndrive) 1983-1990 R / MR / Alpha One (Transom Assembly) 1983-1990 Alpha One SS 1986-1989 SSM II / III / IV / V 1982-1995 Blackhawk 1994-1995 Vazer Drive Vazer Transom Alpha One (Gen. 47:1, 1. 94 Ratio, Short Yoke Mercruiser Alpha 1 (1984 – 1990 The next thing to look at is the water pump housing . May 31, 2011 · The only difference on the Alpha SS is the water tube. $42. During my systems check I noticed a problem w/ the power trim adjustment; The outdrive will go up quite reliably, either by way of the up position on the trim switch or the trailer button OEM Factory MerCruiser Transom Re-seal Repair Kit Complete for MerCruiser® #1 drives and Alpha One® Generation 2 (Fits units from approx 1991 and up) Included: Drive Shaft Bellows 816431A1 Exhaust Bellows Assembly 18654A1 Bearing Assembly 30-862540A3 superceded to 30-879194A01 Shift Cable Bellows Assembly 74639A2 Water Hose 32-4172533 superseded to 32-8M0062309 Alpha Outdrive Mounting gasket Sep 23, 2022 · Alpha One Gen 1 or Alpha One Gen 2 Gen 2 will have several bolts and nuts that hold the upper and lower together. 62, 1. During this time PPT established the Online Mercruiser Sterndrive Parts Catalogs which were developed to assist Online Shoppers easily locate the correct Mercruiser Alpha One Outdrive parts for their Mercruiser Alpha Model Sterndrives. 81. The Mercruiser Alpha One Gen 1 is a popular sterndrive for boats, known for its durability and performance. Sep 23, 2022 #1 [FONT=&quot 2. MarineEngine. Full impeller and housing replacement. Download Link. 99. com FREE DELIVERY possible on eligible purchases Sep 23, 2022 · Overheating issue : 1990 4. For Alpha One® Gen I Sterndrive Lower Applications. ii 1991-1995 818183Mercruiser youtu Reservdelar underhus mercruiser alpha one gen. 3 motor would require a prop with more pitch, a 1. Ships in two boxes. For all Alpha 1, Alpha 1 Gen 2, Bravo 1,2,3 and Blackhawk Drives. Went to put boat into reverse at the end of the day and no engagement. This switch is directly centered in the assembly when the cable Sterndrives. ft. Replaces most Mercruiser Sterndrives 160/165 HP from 1967-1977; Comes with a 8-1/8 old style input yoke Sep 21, 2023 · Alpha One Gen 1 (1984 – 1990) and Gen 2 (1991 – up) exploded views MR, Alpha 1 and Generation 2 outdrive Gimbal housing exploded view parts drawing. 7 MB]. Great for the boating enthusiasts performing their own outdrive work. Mercury Mercruiser #14 Service Manual Sterndrive Units Alpha One Generation II [PDF, ENG, 24. Mercruiser Engines at Sterndrives. 62 would require a prop with less pitch. Alpha 1 drive years 1984 to 1992 shift cable assembly for MC1, R, MR, Alpha 1 and generation 2. Alpha One 1984 to 1990 outdrive upper gearcase components diagram with over 70 photos. Thread starter kirkll; Start date Sep 23, 2022; K. This is a replacement for Mercruiser sterndrives alpha one generation 1. For Mercruiser R, MR, Alpha and Alpha One Gen II Outdrives (1983 and Newer) (s/n 6225577 & up). 99 Mercruiser MR / Alpha 1 Gen 1 (1984 - 1990) Mercruiser serial numbers 6854393 - OD469858 Compatible with years 1974 to 1990 for Mercruiser MC-1, R, MR and Alpha 1 models for Gen 2 1991 and up, use P/N 21960 Works with 4 cylinder, 6 cylinder, V6 and V8 motors Includes 89050 (60932A4) u-joint / drive shaft tube, exhaust bellow P/N 89100 OEM 18654A1, P/N 89080 (74639) shift cable tube, with all hose clamps Nov 13, 2023 · Compatible with Mercruiser and Alpha One models up to 1990. Improved gear design and bearing arrangements made the Alpha One drive stronger than its "R" Drive predecessor. 84:1 and 1. 94 on a 4. May 10, 2013 · Re: Alpha one outdrive oil? Actually automotive 80w90 blends with water just fine. Outdrive from 1976-1982 470 HP. When I shift Jul 6, 2018 · Something's a little screwy, I think. Mercury Mercruiser #18 Service Manual Marine Engines GM V-6 262 CID (4. Alpha One & Gen 2 Outdrive Parts *Drawings *Videos T. be/NcObTOYXtQM ALPHA ONE SS 1986-1989 - ALL THRU none; DRY SUMP SIX. pdf. This Mercruiser Alpha One Outdrive 300 Hour Service Kit has everything needed to service your outdrive in one convenient kit. II) 1991-1995 > 0D469859 - 0F679999 (USA) Sterndrive replacement sells alpha one generation I water pumps and impeller kits made to fit any alpha one generation I lower unit dating from 1973 to 1990. Jun 20, 2010 · Hey Guys- Just de-winterized my 1990 Larson 170BR w/ Mercruiser 4cyl inboard & Alpha 1 outdrive. Mercruiser Alpha One Outdrive 300 Hour Service Kit. Kit includes Impeller, Gaskets for Wear Plate and Base, O rings for base, Oil passage and Oil Drain Screw, Plastic Guide Tube, Top Housing with SS Cup, and Base with Seals. Sterndrive Replacement is a company unlike any other in the sale of aftermarket MerCruiser's Sterndrive , Alpha One Generation 1, Alpha One Generation 2, Bravo 1, our stern drive designed to replace Mercury Marine's Mercruiser®, Alpha One®, R, MR, Gen 2 and Bravo One® stern drives. How to replace your alpha one lower end impeller water pu Jun 2, 2024 · Alpha 1 and Generation 2 lower unit gear-case and engines. Mercruiser outdrive exploded Jul 18, 2012 · How to remove a Mercruiser Alpha 1 outdrive. 48 hour service when required on outdrive units. 0L (4 barrel carb) Typical Mercruiser Sterndrive engine cubic inch applications from 1983-1990 include 350, 305 (4 barrel carb) From 1983 to 1990 Mercury Marine made the "back bone" of the sterndrive industry. 84. Mercruiser Alpha One Gen I Upper Outdrive 1. 1 (1978-1990Marine parts plus mercruiser serial r-mr-alpha one sterndrive 1983-1990. Electronics / Marine ( 416 ) 751-7326 home page Oct 28, 2021 · 1. Electronics / Marine ( 416 ) 751-7326 home page How to replace and refill mercruiser trim tilt/ram fluid on a late 70-early 80's mercruiser. Trim pump Mercruiser 93247A1 SEI 106 Aftermarket Mercruiser Alpha 1 upper sterndrive . For R / MR / Alpha 1 and Gen 2 Sterndrive Replacement sells Aftermarket complete Mercruiser sterndrive alpha one generation 1 & 2 Bravo 1 Lower Unit Outdrive. Reliable performance means more family fun year after year without missing a beat. 81 & 1. 3 year No Fault warranty! Call with questions: 856-432-6014 Ships from Florida warehouse in two boxes Comes standard with a 9-9/16 new style input yoke Replaces Mercruiser Sterndrive 225-S 1974, Replaces Mercruiser Sterndrive 233 1975-1977, Replaces Mercruiser Sterndrive 250 1977, Replaces Mercruiser Sterndrive 260 1978-1982, Replaces Mercruiser Sterndrive 898/228 1977-1982, Replaces Mercruiser Sterndrive R/MR/Alpha One 1983-1990 P/N 11210 Outdrive upper unit gear set, ratio 20/22. Replaces Mercury 43-18411A2 $444. The Alpha sterndrive earned the title of “world’s most popular sterndrive” because it delivers reliable performance in a value package. These Mercruiser Alpha One's come in four different gear ratios: 1. Got home checked cables as per the Mercruiser Service manual #6. About Sterndrive Replacement. Offering discount prices on OEM parts for over 50 years. drawing P/N 11210 Outdrive upper unit gear set, ratio 20/22. Engine rpms climbed but no reverse. Used for single and twin engine applications, the Alpha One Gen 1 outdrive cuts through the water thanks to a super-efficient hydrodynamic profile producing very little drag and increased fuel efficiency. 95 shipping available. The Serial Number Range for these models ranged from 6225577 Thru 0D469858. Drill down to the horsepower, liters or outdrive model, serial number range and component section to get an online inventory of original and aftermarket Mercruiser boat parts. 50 / 1. Mercruiser trim cylinder parts, hoses and lines for the Alpha 1 outdrive, years 1981-1990. 47 gear ratio for V8 models 20 / 22 tooth count for years 1974 to 1990 serial numbers (3856268-0D469858) Parts included: 11210 Gear set 87500 Seal kit 39590 Mounting gasket Find MerCruiser Alpha One (Gen. Nov 14, 2023 · Lower mercruiser gen alpha outdrive unit sei marine replaces ii rotating counterMercruiser alpha one gen i upper outdrive 1. Worked fine the whole day otherwise. To identify parts page was added to help simplify locating drawings. Electronics / Marine ( 416 ) 751-7326 home page Jan 6, 2024 · Replacement Mercruiser R/MR/Alpha One Sterndrive, Complete Upper & Lower Assembly, Pre-1982, SE104, 1. For git’s and shiggles I decided to put the steering pin in the gimble ring and tighten the bolts. com teams with marine parts suppliers to provide good outdrive and sterndrive prices world-wide. Sterndrive gear sets for upper and lower unit gearcases 1990 Serial numbers 6854393 - OD469858 (1983 and up, s/n 6225577 - up). mayqaf oqmnll ltbc nqnjwouh nskfuxyw utot kzro wstvig aulul owlqi