Twin Disc MG521 marine transmission with a ratio of 4.087 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 12 US gallons.
- Pressure range 190-220 PSI @ 1800 rpm and 180 degrees farenheit
- Maximum speed 3000 RPM
- Operating: Oil viscosity SAE 40W engine oil, temperature 150 - 185 degrees farenheit.
- Operating: Oil viscosity SAE 50W engine oil, temperature 185 - 200 degrees farenheit.
- Oil pump capacity 30 gpm at 2000 rpm