- Brand: Mercury
- Size: 90 115 150 HP
- Color: Black
- Style: Inline 6 - 20"
- Condition: Seller Refurbished
- Notes: Opened & Inspected!
- SKU: 31111 LRU
- Manufacturer Part Number: 7333T24 7333A24 6053A15 6053A14 6053A4 5829A7
- Country of Manufacture: United States
- Motor & Engine Type: Mercury
- Part Type: Motors, Engines & Components
- Other Part Number: 5578A7 5244A7 4934A7 4749A4
- Surface Finish: Painted, Black
- Warranty: 30 days
- Inventory Number: 31111 LRU
- Website Category: Lower Units
- Website Sub Category: Complete Lower Units
- UPC: N/A
Mercury 20" Lower Unit Inline 6
Mercury 20" Inline 6 lower unit for 1980–1989 outboards, 90 115 150 HP. Inspected, serviced, and tested for proper function. Gears are replaced only if bad — good OEM gears are retained. Please note: There are minor corrosion on the outside of the housing, but this will NOT affect the overall performance. This does not come with the trim tab. There are pre-drilled holes in the cavitation plate for a planing fin. This housing has a square cavitation plate.
SPECS
| Driveshaft length: 20-3/4″ | Driveshaft splines: 8 |
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 ❖ Professionally cleaned ❖ Opened and inspected |
FITMENT
Mercury 20"
| Years | 1980–1989 |
| Shaft | 20" |
| Horsepower | 90 115 150 HP |
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

