Twin Disc Service Manuals

Twin Disc is the world leader for marine transmissions with over 100 models ranging from 35 to over 4,000 horsepower. They have manufactured power take-offs for over 100 years, longer than anyone else in the market. Diesel Parts Direct is an authorized Twin Disc dealer, with access to a huge factory inventory and the ability to ship hundreds of parts directly to our customers on the same day their order is placed. We only sell genuine Twin Disc parts, all covered by a 12-month factory warranty.

Regardless of your specific needs, Diesel Parts Direct is your source for thousands of new and genuine remanufactured parts for your Twin Disc marine transmissions. Use the links below to find additional information on your Twin Disc marine transmissions. Shop online on our Twin Disc home page, Request a Quote or feel free to call any of our knowledgeable sales staff at 888.687.0539 if you need assistance.

• Download the MG-502 Service Manual
• Download the MG-506-1 Service Manual
• Download the MG-506-A Service Manual
• Download the MG-507-1 Service Manual
• Download the MG-507-A Service Manual
• Download the MG-509 DC Service Manual
• Download the MG-509 SC Service Manual
• Download the MG-514-B DC Service Manual
• Download the MG-514-B SC Service Manual
• Download the MG-514-C DC Service Manual
• Download the MG-514-C SC Service Manual
• Download the MG-520-1 DC Service Manual
• Download the MG-520-1 SC Service Manual