- Brand: Mercruiser
- Size: Alpha I Gen I
- Style: 1.62:1 Ratio
- Condition: Re-manufactured
- Notes: Fully Resealed & Pressure Checked With New Impeller!
- SKU: 56956 LRU
- Manufacturer Part Number: 1623-8951A43 8951A23 4110A6 4110A13 5356A20
- Country of Manufacture: United States
- Motor & Engine Type: MerCruiser
- Part Type: Motors, Engines & Components
- Inventory Number: 56956 LRU
- Website Category: Lower Units
- Website Sub Category: Complete Lower Units
- UPC: N/A
- Shipping: $75.00
Mercruiser Alpha I Gen I 1.62:1 Outdrive Lower Unit
Mercruiser Alpha I Gen I 1.62:1 Outdrive lower unit for 1984–1990 outboards. Inspected, serviced, and tested for proper function. Gears are replaced only if bad — good OEM gears are retained.
SPECS
| Gear ratio: 1.62:1 | Driveshaft length: 7-1/4″ |
| Driveshaft splines: 13 | Prop shaft splines: 15 |
Driveshaft length measured from the top of the water pump.
WHAT WE DID
| ❖ Opened and inspected under magnification ❖ Fully resealed | ❖ Pressure checked to 12 PSI |
FITMENT
Mercruiser Alpha I Gen I 1.62:1 Outdrive
| Years | 1984–1990 |
Verify by model and serial number before purchase to confirm this is the correct unit for your application.
Backed by Southcentral Outboards. Failures during normal use within the warranty period will be repaired or replaced.
DISCLAIMER
Listing info accurate to the best of our knowledge but not guaranteed. Fitment is the buyer’s responsibility — verify by model and serial before purchase.
SOUTHCENTRAL OUTBOARDS · ALTAMONT, IL

