Our Twin Disc transmission services
Twin Disc Transmission Supply
As an authorised Twin Disc dealer we can supply new marine transmissions, marine gear and control systems, matched to your engine, shaft angle and application — whether you’re repowering or specifying a new build.
- Marine transmissions (MG-series)
- Quickshift & electronic controls
- Power-take-off & live-power options
- Matched to your engine & duty
Gearbox Servicing & Scheduled Maintenance
Regular servicing keeps a Twin Disc gearbox shifting cleanly and protects the clutch packs. We carry out scheduled maintenance in our workshop or on board.
- Transmission oil & filter changes
- Clutch pack inspection
- Oil cooler & heat-exchanger service
- Shift control & linkage adjustment
Gearbox Rebuilds & Overhauls
When a transmission is slipping, noisy or due for overhaul, we carry out full in-house rebuilds — stripped, inspected, measured and reassembled to Twin Disc specification, then pressure-tested before it goes back in the boat.
- Complete strip-down & inspection
- New clutch packs, bearings & seals
- Shaft, gear & housing inspection
- Reassembly to spec & pressure testing
Diagnostics & Fault-Finding
Not sure if it needs a service or a rebuild? Bring us the symptoms and we’ll diagnose the cause and quote the right fix — no guesswork.
- Slipping or harsh shifting
- Noise & vibration
- Overheating
- Oil leaks & contamination
Twin Disc Controls & EJS
We diagnose and repair Twin Disc electronic control systems — including Express Joystick System (EJS) and electronic shift and throttle — so docking and manoeuvring stay precise.
- Electronic shift & throttle
- EJS joystick diagnostics
- Control head & actuator repair
- Calibration & set-up
Genuine Twin Disc parts
We use genuine Twin Disc parts for every service and rebuild — clutch packs, bearings, seals, filters and gaskets — sourced through our dealer network and supplied Australia-wide.
Service or rebuild your Twin Disc gearbox
Tell us your gearbox model and symptoms — we'll advise on servicing, repair or a full rebuild and quote it fast.
Why choose an authorised Twin Disc dealer
Request a Twin Disc service or rebuild quote
Tell us your Twin Disc gearbox model, your vessel and the issue or service you need, and our team will get back to you with a quote — usually within 1 business day.
Authorised Twin Disc dealer
Genuine factory products, warranty and back-up — not a grey importer.
Factory-trained technicians
Diagnostics, servicing and commissioning from our Spotswood, Melbourne workshop.
Genuine parts in stock
OEM parts and consumables on the shelf to keep your boat on the water.
Supply, install & support
Repower specialists serving boat owners across Port Phillip Bay and beyond.