Free - Twin Disc MG-5111 Troubleshooting Guide Twin Disc MG5111 Marine Transmission Parts - Seal Section Loading... 1 Front seal for Twin Disc MG5091, MG5111, MG5114, MG5114A . Price: $ 80.98 Qty: ^ Details In Stock Add to Cart 2 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 Go Back Free - Twin Disc MG-5111 Troubleshooting Guide