SKU: 67697830565

New OBR / Mercruiser 1969-1990 Alpha I 4-CYL/V6/V8 Upper Sterndrive Assembly

Sale price$922.49 Regular price$1024.99
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Description

New OBR / Mercruiser 1969-1990 Alpha I 4-CYL/V6/V8 Upper Sterndrive AssemblyThis listing is for a New OBR Mercruiser Alpha I Upper Drive Shaft Assembly, which will fit models from 1969 to 1990 (Please note that Alpha I serial numbers are from OD494569 and before). New upper drives are assembled with a combination of all new OEM and new aftermarket parts using only high grade American steel for gears and shafts. This item is available in the following Gear Ratios: 1. 50, 1. 65, 1. 84, and 1. 98. When placing an order, please

This listing is for a New OBR Mercruiser Alpha I Upper Drive Shaft Assembly, which will fit models from 1969 to 1990 (Please note that Alpha I serial numbers are from OD494569 and before). New upper drives are assembled with a combination of all new OEM and new aftermarket parts using only high grade American steel for gears and shafts. This item is available in the following Gear Ratios: 1.50, 1.65, 1.84, and 1.98. When placing an order, please specify gear ratio. Please note that older "R" style 4 & 6 cylinder units require that you reuse your input shaft. Please use chart below to help identify your model:

Alpha I Standard Production Models
ENGINE HP

DISPLACEMENT

LITRE/CID

CYLINDERS GEAR RATIO TOOTH COUNT
2.5 Litre 120 2.5 / 153 4-In-Line 1.98 20-24
3 Litre 130 3.0 / 181 4-In-Line 1.98 20-24
165 165 3.7 / 224 4-In-Line 1.84 17-19
175 175 4.3 / 262 V-6 1.84 17-19
180, 470, 190 180 3.7 / 224 4-In-Line 1.84 17-19
200 200 5.0 / 305 V-8 1.65 24-24
205 205 4.3 / 262 V-6 1.84 17-19
230 230 5.0 / 305 V-8 1.50 20-22
260 260 5.7 / 350 V-8 1.50 20-22
350 Magnum 270 5.7 / 350 V-8 1.50 20-22


A Limited One-Year Warranty is included in the order. An additional Twelve-Month Extended Warranty is available. See options and pricing above. Please read the terms of OBR's New and Remanufactured Parts Warranty at https://obparts.com/obr-red-rhino-new-and-remanufactured-parts-warranty/.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 67697830565

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Color: Yellow, Size: Small, Color: Yellow, Size: Small
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Reviewed in the United States on January 23, 2026
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Mary Montilla
Massapequa, US
★★★★★ 5
sweet sweater
Color: Pink, Size: Medium
The color is beautiful, just as shown in the photo. It's comfortable and made with a quality, very soft fabric.
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Reviewed in the United States on February 19, 2026
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Skb
Port Orchard, US
★★★★★ 5
Great sweater
Color: Khaki, Size: Medium
Way better than expected! I’m going to get other colors!
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Reviewed in the United States on April 26, 2026
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Marian Armstrong
Whiting, US
★★★★★ 5
Very light sweater
Color: Gray, Size: Medium
Love it fits so perfect love the fell
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Reviewed in the United States on April 23, 2026
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María del Pilar
Lexington, US
★★★★★ 5
Cozy, Stylish, and Perfect for Everyday Wear
Color: Yellow, Size: Small, Color: Yellow, Size: Small
I absolutely love this oversized knit sweater! The material feels soft and comfortable against the skin, and it keeps me warm without feeling heavy. The oversized fit is flattering and easy to style with jeans or leggings, making it perfect for casual outings or relaxing at home. The stitching looks well-made, and after washing, it still holds its shape nicely. Great quality for the price — I’d definitely recommend it!
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Reviewed in the United States on January 23, 2026

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