877.480.2120 (U.S.)
|
225.706.4852 (Int.)
Monday-Friday 7am-5pm CST

Twin Disc MG-502 Marine Transmission Parts

Diesel Parts Direct is an Authorized Twin Disc Dealer and carries a great selection of genuine parts for MG-502 marine transmissions. We stock most popular products like clutch plates, oil pumps, rubber blocks, and bearing kits and have them ready for immediate shipment.


Need Assistance?



If you know the correct Twin Disc part number, please enter it in the search box located in the navigation bar, or use any of our quick links below to access the most common parts available for this model.

If you do not see the parts you are looking for, please use our quote request form or call us at 888.687.0539: our knowledgeable inside sales staff will gladly assist you.

Twin Disc MG-502 Transmission Specifications



Available Ratios
1.54:1, 2.00:1, 2.47:1
Oil Capacity
3.5 U.S. pints (1.7L), plus hoses and heat exchanger
Oil Pump Capacity
2.5 GPM at 3000 RPM
Maximum Speed
4000 RPM
Other Info

FRONT SEAL

  • $47.37
    • $47.37
    Qty: 

    GASKET

    PART RECOMMENDED WHEN CHANGING PUMP

  • $7.36
    • $7.36
    Qty: 

    O-RING

    PART RECOMMENDED WHEN CHANGING SCREEN

  • $5.82
    • $5.82
    Qty: 

    REAR SEAL

  • $59.69
    • $59.69
    Qty: 

    SCREEN

  • $33.49
    • $33.49
    Qty: 

    BEARING KIT

  • $991.76
    • $991.76
    Qty: 

    GASKET AND SEAL SET

  • $463.50
    • $463.50
    Qty: 

    OIL PUMP (RIGHT HAND)

  • $667.38
    • $667.38
    Qty: 

    OIL PUMP (LEFT HAND)

  • $1,141.98
    • $1,141.98
    Qty: 

    SELECTOR VALVE

  • $2,283.25
    • $2,283.25
    Qty: 

    CENTA COUPLING (INPUT, 11")

  • $2,007.27
    • $2,007.27
    Qty: 

    CLUTCH PLATE (DRIVEN, STEEL)

  • $33.94
    • $33.94
    Qty: 

    CLUTCH PLATE (DRIVING)

  • $26.95
    • $26.95
    Qty: 

    DIPSTICK

    Use with TD-B5808B Dipstick Tube

  • $53.02
    • $53.02
    Qty: 

    DIPSTICK TUBE

    Use with TD-B3430B Dipstick

  • $306.13
    • $306.13
    Qty: 

    DRIVE PLATE SPRING

  • $54.80
    • $54.80
    Qty: 

    LATHE CUT RING

    PART RECOMMENDED WHEN CHANGING REAR SEALS

  • $42.31
    • $42.31
    Qty: 

    OUTPUT FLANGE

  • $922.72
    • $922.72
    Qty: 

    SINTERED ONE-SIDED PLATE

  • $24.03
    • $24.03
    Qty: 
    Hundreds Of Items Guaranteed in Stock
    Hundreds Of Items Guaranteed in Stock Click here for details
    Great Selection of Block Heaters and Glow Plugs

    GREAT SELECTION OF BLOCK HEATERS AND GLOW PLUGS

    Everyday Free Ground Shipping on Select Overhaul Kits and Turbos
    Everyday Free Ground Shipping on Select Overhaul Kits and Turbos Click here for details

    Stay Connected

    Join our newsletter and stay informed on your favorite manufacturers
    back to top