Building Filters

Twin Disc MG516, 6:1-T2243
- Manufacturer: Twin Disc
- Model: MG-516
Good used Twin Disc MG516 marine gear in 6:1 ratio. Gear has been spin-tested for proper operation and pressures. All is in good shape and working correctly.
Onalaska, WI
Twin Disc MG514C 3:1-T2252
- Manufacturer: Twin Disc
- Model: MG-514
Good used running takeout of Twin Disc MG514C marine gear with torsional coupling and drive ring . This gear looks like brand new inside although the actual hours are unknown.
Onalaska, WI
Twin Disc MG514B 2.5:1 Pair-T2206
- Manufacturer: Twin Disc
- Model: MG-514
Pair available of Twin Disc MG514B models in 2.5:1 ratio. SAE#1 bell housing, mechanical shift. Good used running take-out condition and spin tested. Actual hours are unknown.
Onalaska, WI
Twin Disc MG514C 2.5:1 Zero Hour-T2212
- Manufacturer: Twin Disc
- Model: MG-514
Twin Disc MG514C available in hard to find 2.5:1 ratio. This is a zero-hour rebuilt gear with SAE#1 bell housing. Manual shift . Could install electric shift if necessary.
Onalaska, WI
Twin Disc MG514B 4.5:1 Pair-T2254
- Manufacturer: Twin Disc
- Model: MG-514
We have excellent pair of used Twin Disc MG514B marine gears in 4.5:1 ratio. Can sell one or both. Call for more pictures and price indication.
Onalaska, WI
New Orleans, LA
Twin Disc 512 Marine Gear – Ratio 2:1
- Manufacturer: Twin Disc
Rebuilt by Twin Disc No warranty any more Confirming SAE # Stored Inside
New Orleans, LA
Twin Disc 514C 3:1 Marine Gear
- Manufacturer: Twin Disc
MG514C, BOM 37130, ratio 3.0:1 Solid block drive, less than 100 hrs of use. Original paint. Comes with mount brackets.
New Orleans, LA
New Orleans, LA
Twin Disc 527 Marine Gear – 5.17:1 Ratio
- Manufacturer: Twin Disc
Twin Disc 527 Gear – 5.17:1 Ratio – Good RTO Good RTO unit just removed from well maintained vessel.
New Orleans, LA
New Orleans, LA
Twin Disc MG521 Marine Gear – Ratio 4:1
- Manufacturer: Twin Disc
Running take out Good used unit Hours unknown
New Orleans, LA- Trusted Seller

Rebuilt Twin Disc MG514C 4.13 Marine Transmission
- Manufacturer: Twin Disc
- Model: MG-514
The marine gear was rebuilt by Palmer Johnson. Applications: Dredge Marine | Flywheel housing size: SAE 1 | Drive type: Spider | Serial#: 3L3992 | Hp: 380 | Gear ratio: 4.13 | Transmission cooler: No | Product in...
Houston, TX 
Single Twin Disc 516 Marine Transmission 4.5:1
- Manufacturer: Twin Disc
Running take out with approximately 3,000 hours. It has been spin tested and any seals that needed replacing were changed out.
New Orleans, LA
Single Twin Disc 509 Marine Transmission 3:1 Ratio
- Manufacturer: Twin Disc
Zero hours on a rebuild. It has been stored since 2016.
New Orleans, LA
Twin Disc MG-516 Marine Equipment
- Manufacturer: Twin Disc
- Model: MG-516
Good condition Twin Disc MG-516 Marine Equipment. Located in Netherlands and other countries. Click request price for more information.
Netherlands
