Mercury Pro XS Torque Master Lower Unit Housing Assembly – 20" Shaft – 1.75:1 Ratio – P/N 8M0055778
Mercury Pro XS Torque Master Lower Unit Housing Assembly – 20" Shaft – 1.75:1 Ratio – P/N 8M0055778
OEM Mercury Pro XS Torque Master lower unit housing assembly removed from a high-performance Mercury Marine application. Includes 20" driveshaft assembly, splined propshaft stub, bearing carrier area, water intake passages, and mounting surfaces exactly as shown. Features visible part number 8M0055778 and 1.75:1 gear ratio identification.
A solid replacement lower unit housing assembly for damaged or worn Torque Master gearcases. Great option for rebuild, repair, or high-performance outboard projects.
Highlights:
- OEM Mercury Marine
- Pro XS Torque Master Application
- Lower Unit Housing Assembly
- 20" Shaft Configuration
- 1.75:1 Gear Ratio
- Stainless Steel Driveshaft Included
- Splined Propshaft Stub Included
- Part Number: 8M0055778
- High-Performance Outboard Application
- Sold Exactly as Shown
Condition:
- Good used condition
- Normal cosmetic wear consistent with marine use and storage
- Scratches, scuffs, paint wear, oxidation, and minor surface corrosion visible throughout
- Housing appears structurally intact
- No obvious major cracks visible
- Internal gears, bearings, and seals have not been inspected or tested
- Great candidate for rebuild or replacement application
- Please review all photos carefully for exact condition and included components
Specifications:
Brand: Mercury Marine
Model: Pro XS Torque Master
Part Number: 8M0055778
Gear Ratio: 1.75:1
Shaft Length: 20"
Type: Lower Unit Housing Assembly
Condition: Used
Dealer Sale – Sunset Marine TX LLC
SKU:10268

























