Free - Twin Disc MG-5090A Troubleshooting Guide Twin Disc MG5090A Marine Transmission Parts - Seal Section Loading... 1 Front seal for Twin Disc marine gear MG5090A and MG5111A Input shaft seal Price: $ 32.71 Qty: ^ Pictures In Stock Add to Cart 2 Twin Disc Rear seal for marine gear MG5090 and MG5091 Output shaft seal Price: $ 42.48 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-5090A Troubleshooting Guide