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Our office will be closed 9/7/2026 in observance of Labor Day. Orders placed during this time will be processed when our office opens 9/8/2026.

Our office will be closed 9/7/2026 in observance of Labor Day. Orders placed during this time will be processed when our office opens 9/8/2026.

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Twin Disc MG-520 Marine Transmission Parts

Diesel Parts Direct is an Authorized Twin Disc Dealer and carries a great selection of genuine parts for MG-520-1 DC (deep case) and MG-520-1 SC (short case) marine transmissions. We stock most popular products like clutch plates, oil pumps, rubber blocks, and filters and have them ready for immediate shipment.

Back to Twin Disc Marine TransmissionsTwin Disc MG-520 Specifications

TD-1015461

TORSIONAL ELEMENT (VULKAN, SILICON)

$13,341.10

TD-A2916BS

O-RING

$24.35

TD-A2916HG

O-RING

PART RECOMMENDED WHEN CHANGING SCREEN

$12.69

TD-A4969AV

DIPSTICK

$305.25

TD-A6945

DRIVE RING (BOLTS TO FLYWHEEL, 18")

$3,686.31

TD-B1251A

BREATHER

$298.96

TD-B1337D
Hassle-Free Return Item

SELECTOR VALVE GASKET

$9.00

TD-B1340
Restocking Fee Applies

OIL PUMP GASKET

PART RECOMMENDED WHEN CHANGING PUMP

$9.05

TD-B1347A
Hassle-Free Return Item

OIL FILTER GASKET - MG-514-C

PART RECOMMENDED WHEN CHANGING FILTER

$11.69

TD-B2489

SCREEN

$121.92

TD-B3073A

RUBBER BLOCK

$46.46

TD-K503

GASKET AND SEAL KIT

$2,028.98

TD-M201189

FRONT SEAL

$114.32

TD-M2183

REAR SEAL

$166.89

TD-M2194

OIL FILTER

$140.08

TD-M2261A

SCREEN

$34.52

TD-M2725
Hassle-Free Return Item

OIL FILTER - MG-514C

$31.08

TD-XB3614

FILTER (SPIN ON)

$114.39

TD-XB5958Z

OIL PUMP

$2,836.75

888.687.0539 (U.S.)|225.706.4858 (Int.)

Monday-Friday 7am-5pm CST
8784 S. Choctaw Dr. Baton Rouge, LA 70815
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