Free - Twin Disc MG-5050 Troubleshooting Guide Twin Disc MG 5050 Marine Transmission Parts - Transmission Seals Section Loading... 1 Front seal for MG5050, rear seal for MG5061 Twin Disc gear . Price: $ 11.44 Qty: ^ Details In Stock Add to Cart 2 Rear seal for Twin Disc marine gear MG5050 . Price: $ 56.21 Qty: ^ Details In Stock Add to Cart Go Back Free - Twin Disc MG-5050 Troubleshooting Guide