Twin Disc MG518 marine transmission with a ratio of 1.48 to 1 - Remanufactured 
Includes: 
- Mechanical selector valve assembly (Control valve) 
 
- Pilot housing flange
 
- Oil pump
 
- Oil level gauge 
 
- Output flange 
 
It does not included the Drive ring (sold separately) 
General information:
-  Oil capacity 6.8 US gallons.
 
-  Pressure range 160-180 PSI @ 1800 rpm and 180 degrees farenheit
 
-  Maximum speed 3000 RPM
 
-  Operating: Oil viscosity SAE 30W engine oil, temperature 150 - 185 degrees farenheit. 
 
- Operating: Oil viscosity SAE 40W engine oil, temperature 185 - 200 degrees farenheit. 
 
- Oil pump capacity 23 gpm at 2000 rpm