- Brand: Mercruiser
- Size: Pre-Alpha
- Color: Black
- Style: N/A
- Condition: Used
- Notes: Freshwater
- SKU: 50751 LRU
- Manufacturer Part Number: 8951A43 8951A23 4110A6 4110A4 8951A19
- Country of Manufacture: United States
- Motor & Engine Type: MerCruiser
- Part Type: Motors, Engines & Components
- Other Part Number: 8951A14 8951A2 5356A20 5356A18 5356A19
- Surface Finish: Black
- Inventory Number: 50751 LRU
- Website Category: Lower Units
- Website Sub Category: Complete Lower Units
- UPC: N/A
- Shipping: $75.00
Mercury Mercruiser Pre-Alpha Lower Unit
Mercury Mercruiser Pre-Alpha lower unit for 1969–1983 outboards. Inspected, serviced, and tested for proper function. Gears are replaced only if bad — good OEM gears are retained. Please note: Please note that this lower unit does come with the trim tab.
SPECS
| Driveshaft length: 7-3/4″ | |
| Driveshaft splines: 13 | Prop shaft splines: 13 |
Driveshaft length measured from the top of the water pump.
WHAT WE DID
| ❖ Fully resealed ❖ Pressure checked to 12 PSI ❖ New water pump impeller installed | ❖ Driveshaft and prop shaft checked straight ❖ Shifts smoothly through gears ❖ Opened and inspected |
FITMENT
Mercury Mercruiser Pre-Alpha
| Years | 1969–1983 |
Verify by model and serial number before purchase to confirm this is the correct unit for your application.
Backed by Southcentral Outboards. Warranty validated by core return — we provide the shipping label. 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
