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MerCruiser Alpha Gen 1 Outdrive (1973-1991)

MerCruiser Alpha Gen 1 Outdrive (1973-1991)

  • OEM MerCruiser Oil Seal Carrier O-Ring 25-70937 25-8M0214941

    OEM MerCruiser Oil Seal Carrier O-Ring 25-70937 25-8M0214941

    Mercury Marine / Quicksilver

    $5.70 $5.01
    OEM MerCruiser Oil Seal Carrier O-Ring 25-70937 SS to 8M0214941 Please confirm fitment of MerCruiser parts with your serial numberPhotos and descriptions provided via Mercury may not always be...
    Part Number:
    710-25-8M0214941
    Availability:
    In Stock - Ships same or next business day.
    $5.70 $5.01
  • OEM MerCruiser Nut 11-22339 11-8M0214915

    OEM MerCruiser Nut 11-22339 11-8M0214915

    Mercury Marine / Quicksilver

    $11.69 $9.99
    OEM MerCruiser Nut 11-22339 SS to 11-8M0214915 Please confirm fitment of MerCruiser parts with your serial numberPhotos and descriptions provided via Mercury may not always be accurateAll of our...
    Part Number:
    710-11-8M0214915
    Availability:
    In Stock - Ships same or next business day.
    Fitment:
    .625-18
    $11.69 $9.99
  • OEM Quicksilver/Mercury Alpha 1 Water Pump Base Kit  46-44292A3

    OEM Quicksilver/Mercury Alpha 1 Water Pump Base Kit 46-44292A3

    Mercury Marine / Quicksilver

    $43.49 $36.99
    MerCruiser Water Pump Base Kitalpha I 46-44292A3 For MerCruiser MR and Alpha One drives. See your owner’s manual for replacement schedule. See your service manual for installation instructions. 
    Part Number:
    710-46-44292A3
    Availability:
    In Stock - Ships same or next business day.
    $43.49 $36.99
  • OEM Quicksilver/Mercury Flo-Torq 2 Drive Sleeve  835290Q 1

    OEM Quicksilver/Mercury Flo-Torq 2 Drive Sleeve 835290Q 1

    Mercury Marine / Quicksilver

    $31.16 $24.03
    OEM Quicksilver/Mercury Flo-Torq 2 Drive Sleeve  835290Q 1 Flo-Torq II hub kit 835290Q1 is for use in Mercury or Quicksilver propellers for 75 hp Mercury two-cycle outboards (1984 and newer), 90 hp...
    Part Number:
    710-835290Q1
    Availability:
    In Stock - Ships same or next business day.
    $31.16 $24.03
  • OEM Quicksilver/Mercury Anode Kit- Trim Tab- O/B  97-31640Q 4  97-31640T 4

    OEM Quicksilver/Mercury Anode Kit- Trim Tab- O/B 97-31640Q 4 97-31640T 4

    Mercury Marine / Quicksilver

    $18.69 $15.99
    OEM Quicksilver/Mercury Anode Kit- Trim Tab- O/B  97-31640Q 4  97-31640T 4 For Mercury/Mariner outboards 35 hp and above plus all MerCruiser Drives except Bravo Drives. After installation, check for...
    Part Number:
    710-97-31640Q4
    Availability:
    In Stock - Ships same or next business day.
    Application:
    Fits most Mercury/Mariner outboards 35 hp. & above and all MerCruiser except Bravo
    Material:
    Aluminum
    $18.69 $15.99
  • OEM MerCruiser End Cap O-Ring 25-32546

    OEM MerCruiser End Cap O-Ring 25-32546

    Mercury Marine / Quicksilver

    $4.09 $3.97
    OEM MerCruiser End Cap O-Ring 25-32546 Please confirm fitment of MerCruiser parts with your serial numberPhotos and descriptions provided via Mercury may not always be accurateAll of our Mercury...
    Part Number:
    710-25-32546
    Availability:
    In Stock - Ships same or next business day.
    $4.09 $3.97
  • OEM MerCruiser O Ring E/J 25-25439

    OEM MerCruiser O Ring E/J 25-25439

    Mercury Marine / Quicksilver

    $2.60
    OEM MerCruiser O Ring E/J 25-25439 Please confirm fitment of MerCruiser parts with your serial numberPhotos and descriptions provided via Mercury may not always be accurateAll of our Mercury parts...
    Part Number:
    710-25-25439
    Availability:
    In Stock - Ships same or next business day.
    $2.60
  • OEM MerCruiser Prop Tab Washer 14-816629Q

    OEM MerCruiser Prop Tab Washer 14-816629Q

    Mercury Marine / Quicksilver

    $5.90
    OEM MerCruiser Prop Tab Washer 14-816629Q Tab washer 816629Q is for use on Mercury and Mariner 40 hp through 60 hp Bigfoot 40stroke outboard, 75 hp through 300 hp two-cycle and 4-stroke outboards...
    Part Number:
    710-14-816629Q
    Availability:
    In Stock - Ships same or next business day.
    Description:
    Tab Washer
    $5.90
  • OEM MerCruiser Prop Nut Kit  11-52707Q1

    OEM MerCruiser Prop Nut Kit 11-52707Q1

    Mercury Marine / Quicksilver

    $16.41 $13.24
    MerCruiser Prop Nut Kit 11-52707Q 1 Propeller nut kit 52707Q1 includes two nylock propeller nuts and four tab washers. See your owner's manual for installation instructions, the Flo-Torq hub, thrust...
    Part Number:
    710-11-52707Q1
    Availability:
    In Stock - Ships same or next business day.
    Description:
    Prop Nut Kit
    $16.41 $13.24
  • OEM MerCruiser U-Joint Seal 26-823894

    OEM MerCruiser U-Joint Seal 26-823894

    Mercury Marine / Quicksilver

    $29.99 $23.12
    OEM MerCruiser Carrier Assembly Oil Seal 26-823894 U-Joint seal 823894 is for use on MerCruiser IA, IB, IC, EZ Shift, 120/140, 470/485, 160/165, 888, 898/228/250/260, R, MR, Alpha One, Alpha One SS...
    Part Number:
    710-26-823894
    Availability:
    In Stock - Ships same or next business day.
    $29.99 $23.12
  • OEM MerCruiser ExhaustManifold Pipe Plug  428611 22-8M0204679

    OEM MerCruiser ExhaustManifold Pipe Plug 428611 22-8M0204679

    Mercury Marine / Quicksilver

    $11.00 $9.99
    OEM MerCruiser Exhaust Manifold Pipe Plug 428611 22-8M0204679    Please confirm fitment of MerCruiser parts with your serial numberPhotos and descriptions provided via Mercury may not always be...
    Part Number:
    710-22-8M0204679
    Availability:
    In Stock - Ships same or next business day.
    $11.00 $9.99
  • OEM MerCruiser Drive Housing Lower Oil Seal 26-965031

    OEM MerCruiser Drive Housing Lower Oil Seal 26-965031

    Mercury Marine / Quicksilver

    $18.89 $15.01
    OEM MerCruiser Drv Housing Oilseal-Lower 26-965031 Please confirm fitment of MerCruiser parts with your serial numberPhotos and descriptions provided via Mercury may not always be accurateAll of our...
    Part Number:
    710-26-965031
    Availability:
    In Stock - Ships same or next business day.
    $18.89 $15.01
  • OEM Quicksilver/Mercury Alpha 1 & O/B Impeller 47-89984T4

    OEM Quicksilver/Mercury Alpha 1 & O/B Impeller 47-89984T4

    Mercury Marine / Quicksilver

    $49.49 $42.49
    OEM Quicksilver/Mercury Alpha 1 & O/B Impeller 47-89984T4 For Mercury Optimax 2.5L Non-pro models (serial number 1B227000 and above). See your owner’s manual for replacement schedule. The...
    Part Number:
    710-47-89984T4
    Availability:
    In Stock - Ships same or next business day.
    $49.49 $42.49
  • OEM MerCruiser Aft Washer  12-31211Q03

    OEM MerCruiser Aft Washer 12-31211Q03

    Mercury Marine / Quicksilver

    $14.82 $12.36
    OEM MerCruiser Prop Washer 12-31211Q03 Aft washer 31211Q03 can be used on propellers using the Flo-Torq 1 rubber hub on 135 hp through 275 hp Mercury and Mariner V-6, two-cycle outboards and...
    Part Number:
    710-12-31211Q03
    Availability:
    In Stock - Ships same or next business day.
    Description:
    Rear Spline Washer. Non-Flo Torq II
    $14.82 $12.36

MerCruiser Alpha Gen 1 Outdrive

The Mercruiser Alpha One lives up to its reputation as “the world’s most popular sterndrive” by delivering reliable speed and performance in a value-priced package. 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. Made to power boats capable of speeds up to 65 mph with up to 300hp gas engines (or 150hp diesel engines). Variety of maintenance-free features such as an integrated water pump and permanently lubricated pivot points help take the stress out of boat ownership. Replaces MerCruiser Gen 1 Alpha outdrives from 1974-1991. Available in the following gear ratios:

  • 1.47/1.50 | 20-22 Tooth Count 
  • 1.62/1.65 | 24-24 Tooth Count 
  • 1.81/1.84 | 17-19 Tooth Count 
  • 1.94/1.98/2.00 | 20/24 Tooth Count

Enjoy quick response time and delivery when you purchase your MerCruiser Alpha 1 outdrive and accessories from PowerBoatSupply.com. 1-year OEM factory warranty against defects and workmanship. Propellers sold separately.

Mercury Alpha One features

Strength, versatility, and reliability make this budget-friendly outdrive propulsion system a popular choice year after year. Some highlight features of the Alpha 1 include:

  • Slices through the water with minimal drag thanks to hydrodynamic lower unit
  • Tri-Paint System (Irridite, EDP & Powder Paint) forms a long-lasting corrosion resistant barrier
  • Maximum power with quiet operation thanks to noise-reducing Through-Prop exhaust
  • Power Trim XD® system automatically returns the drive to the water so that you can maintain complete control of your boat even in choppy and rough water
  • Drive lube monitor sounds the alarm when drive lube is low
  • Refill lube without pulling your boat out of the water thanks to easy-inspection engine mounting
  • Flexible options for using 3, 4 or 5 blade propellers in stainless steel or aluminum
  • 300 HP (221 kW) maximum power capacity with a 15-inch diameter propeller

Mercury Marine Alpha Series

PowerBoatSupply.com is proud to have served boat owners and mechanic shops for over 35 years with high-quality outdrives and parts. Get prompt delivery on your Alpha Gen 1 or Alpha Gen 2 sterndrive, along with any other replacement MerCruiser parts you need to keep your boat in peak operating condition. We’re a Platinum-level Mercury dealer, and our knowledgeable customer service reps are ready to field any questions you may have about these products and which parts and accessories are right for your needs.