- Brand: Mercury
- Size: 35 40 45 50 60 70 HP
- Color: Black
- Style: 2 , 3, & 4 Cylinder - 20" - 2-Stroke
- Condition: Seller Refurbished
- Notes: Fully Resealed & New Impeller!
- SKU: 36274 LRU
- Manufacturer Part Number: 1643-9539
- Country of Manufacture: United States
- Motor & Engine Type: Mercury
- Part Type: Motors, Engines & Components
- Other Part Number: N/A
- Surface Finish: Painted, Black
- Warranty: 1 Year
- Inventory Number: 36274 LRU
- Website Category: Lower Units
- Website Sub Category: Complete Lower Units
- UPC: N/A
- Shipping: $50.00
1643-9539 Mercury 20" Lower Unit 2 3 4 Cyl.
1643-9539 Mercury 20" 2 3 4 Cyl. lower unit for 1980–1997 outboards, 35 40 45 50 60 HP. Inspected, serviced, and tested for proper function. Gears are replaced only if bad — good OEM gears are retained. Please note: The paint is in overall good shape with only minor scuffs and scratches. The intake screens are in perfect shape and are not broken or cracked. Please note that this does come with the propeller hardware but NOT the trim tab or propeller.
SPECS
| Driveshaft length: 21-3/4″ |
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
1643-9539 Mercury 20"
| Years | 1980–1997 |
| Shaft | 20" |
| Horsepower | 35 40 45 50 60 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
