Free - Twin Disc MG-514C Troubleshooting Guide Twin Disc MG 514C Marine Transmission Parts - Seal Section Loading... 1 Seal for Twin Disc marine gears Front seal for MG514 & MG514C Rear seal for MG5111, MG5111A, MG5114, MG5114A Price: $ 71.59 Qty: ^ Details In Stock Add to Cart 2 Rear seal for Twin Disc marine gear MG514 . Price: $ 115.87 Qty: ^ Details In Stock Add to Cart Go Back Free - Twin Disc MG-514C Troubleshooting Guide