- Brand: Mercury
- Size: 75 90 115 HP
- Style: Optimax - 13/15 Splines - 20" Shaft
- Condition: Re-manufactured
- Notes: Fully Resealed & Pressure Checked with New Impeller!
- SKU: 70431 LRU
- Manufacturer Part Number: N/A
- Country of Manufacture: United States
- Motor & Engine Type: Mercury
- Part Type: Motors, Engines & Components
- Other Part Number: N/A
- Inventory Number: 70431 LRU
- Website Category: Lower Units
- Website Sub Category: Complete Lower Units
- UPC: N/A
- Shipping: $75.00
UP Mercury 20" Optimax 2.07:1 Lower Unit
UP Mercury 20" Optimax 2.07:1 lower unit for 2004 & Up outboards, 75 90 115 HP. Inspected, serviced, and tested for proper function. Gears are replaced only if bad — good OEM gears are retained.
SPECS
| Gear ratio: 2.07:1 | Driveshaft length: 20-3/4″ |
| 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 ❖ New water pump impeller installed |
FITMENT
UP Mercury 20" Optimax 2.07:1
| Years | 2004 & Up |
| Shaft | 20" |
| Horsepower | 75 90 115 HP |
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
