Free - Twin Disc MG-514B Troubleshooting Guide Twin Disc MG-514B Marine Transmission Parts - Seal Section Loading... 1 Front seal for Twin Disc marine gear MG514 A and B Input shaft seal Price: $ 72.62 Qty: ^ Details In Stock Add to Cart 2 Rear seal for Twin Disc marine gear MG514 Output shaft seal Price: $ 128.91 Qty: ^ Details In Stock Add to Cart 3 Mechanical & Electric Gauges See Our Gauges Page 4 Controls Cables & More... See All Control, Cables & More 5 Marine Water Pumps See All Marine Water Pumps 6 Fresh Water Pumps See All Fresh Water Pumps Free - Twin Disc MG-514B Troubleshooting Guide