- Brand: Mercruiser
- Size: 260 HP
- Style: 1.5:1 Gear Ratio- 5.7L - 350 CID - 8 Cyl - 20/22 Teeth
- Condition: Used
- Notes: Freshwater - good condition
- SKU: 57491 SDU
- Manufacturer Part Number: N/A
- Country of Manufacture: United States
- Motor & Engine Type: MerCruiser
- Part Type: Motors, Engines & Components
- Other Part Number: N/A
- Surface Finish: Painted, Black
- Inventory Number: 57491 SDU
- Website Category: Sterndrive and Jetdrive Parts
- Website Sub Category: Sterndrive Upper Outdrives and Housings
- UPC: N/A
- Shipping: $75.00
MerCruiser Alpha One Gen 1 Upper Outdrive
MerCruiser Alpha One Gen 1 upper sterndrive unit, 1.5:1 gear ratio, 20/22 tooth count. New gears and bearings — no run time. Pair with a matching Alpha One Gen 1 lower to complete the drive.
Specs
| ▸ | Gear ratio: 1.5:1 |
| ▸ | Tooth count: 20/22 |
Condition
| ▸ | Removed from a freshwater engine |
| ▸ | NEW gears and bearings — no run time |
| ▸ | Shaft straight |
| ▸ | Housing and cavitation plate welded and paint touched up |
| ▸ | Scuffs and scratches — refer to photos |
| ▸ | Shipped empty — add gear oil before installation |
Fitment
| Years: | 1984-1990 |
| Models: | MerCruiser Alpha One Gen 1 |
| HP: | 260 HP |
Verify by model and serial number before purchase. Contact us if you need help confirming fitment.
Warranty
Southcentral Outboards proudly warranties this upper outdrive for a full 6 months. Coverage applies to gears, bearings, and shafts. If the unit fails within that period, we will repair or replace it. Seals are not covered.
Returns & Disclaimer
If you order incorrectly or change your mind, you may return the item within 45 days with a 20% restocking fee. Buyer pays return shipping. Contact us to facilitate — do not open a return on eBay. All information in this listing is provided to the best of our knowledge but not guaranteed. Fitment is the buyer's responsibility — please verify by model and serial number before purchasing, and contact us if you are unsure.
Southcentral Outboards
Altamont, IL
