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Delivering a 2.96:1 reduction ratio with 295 HP input capacity at 2500 RPM, the 220 kg Advance 120C-296 heavy duty marine gearbox drives large propellers on commercial tugboats and fishing vessels.
- 2.96:1 reduction turns large workboat propellers.
- Hydraulic multi-disc clutch cushions heavy shifts.
- Max input power handles 295 HP.
- Heavy housing withstands 20000 N thrust.
- Standard bell housing fits SAE sizes.
Managing coastal fishing boat propulsion lines, the 220 kg Advance 120C-245 marine reduction gear transmission handles 295 HP input at 2500 RPM with a reliable 2.45:1 ratio during continuous daily operations.
- 2.45:1 ratio matches medium propeller setups.
- Input speed peaks at 2500 RPM.
- Hydraulic clutch enables smooth gear shifts.
- Rugged casing holds 10 liters oil.
- Total dry weight reaches 220 kg.
Bolting straight to SAE standard flywheel housings, the 220 kg Advance 120C-194 inboard boat transmission gearbox delivers 295 HP at 2500 RPM through a 1.94:1 reduction for medium-speed commercial craft.
- 1.94:1 ratio drives medium speed vessels.
- Hydraulic multi-disc clutch locks smoothly underway.
- Output bearing takes 20000 N thrust.
- Center distance measures 204 mm precisely.
- Cast iron case weighs 220 kg.
Running high-speed ferry routes, the 220 kg Advance 120C-148 commercial vessel marine transmission pairs a 1.48:1 ratio with 295 HP capacity at 2500 RPM to maintain rapid transit schedules reliably.
- 1.48:1 reduction powers high speed ferries.
- 2500 RPM input handles marine diesels.
- Multi-disc clutch prevents severe gear wear.
- Heavy casing absorbs high propeller thrust.
- SAE flanges match standard marine engines.
Delivering 460 HP input power at 2500 RPM, the 380 kg Advance HC138-200 hydraulic marine transmission gearbox provides a 2.00:1 reduction ratio to handle heavy-duty barge and tugboat propulsion demands.
- 2.00:1 ratio drives heavy barge propellers.
- Input power reaches 460 maximum HP.
- Internal clutch takes 35000 N thrust.
- Oil reservoir holds 12 liters fluid.
- Heavy duty unit weighs 380 kg.
Turning deep-sea trawler wheels through severe ocean seas, the 880 kg Advance D300A-763 heavy duty marine gearbox steps down 737 HP at 2400 RPM with an immense 7.63:1 reduction ratio.
- 7.63:1 reduction turns massive trawler wheels.
- Hydraulic power shift delivers seamless control.
- Heavy bearing absorbs 70000 N thrust.
- SAE 0 housing fits large diesels.
- Massive iron body weighs 880 kg.
Built for deep-sea trawlers and heavy tugboats, the 880 kg Advance D300A-706 marine reduction gear transmission converts 737 HP input at 2400 RPM through a deep 7.06:1 reduction gear set.
- 7.06:1 ratio maximizes low speed thrust.
- 737 HP rating supports large tugboats.
- Hydraulic power shift prevents gear shock.
- Oil capacity spans 20 full liters.
- Rugged transmission mass requires 880 kg.
Handling high diesel torque on harbor tugs, the 880 kg Advance D300A-656 commercial vessel marine transmission delivers a 6.56:1 reduction ratio, taking 737 HP input at 2400 RPM in continuous duty.
- 6.56:1 reduction drives harbor workboat propellers.
- Massive thrust capacity takes 70000 N.
- Center distance measures 350 mm spacing.
- Power shift clutch eliminates manual slippage.
- Cast housing weighs exactly 880 kg.
Positioned inside coastal freighter engine rooms, the 880 kg Advance D300A-590 hydraulic marine transmission gearbox steps down 737 HP at 2400 RPM with a 5.90:1 ratio for continuous cargo passages.
- 5.90:1 ratio powers coastal freight vessels.
- 2400 RPM input matches heavy diesels.
- Hydraulic clutch ensures dependable forward reverse.
- Internal sump holds 20 liters oil.
- Structural dry weight reaches 880 kg.
Delivering a 5.52:1 reduction ratio with 737 HP input at 2400 RPM, the 880 kg Advance D300A-552 heavy duty marine gearbox drives heavy displacement commercial hulls in rough seas.
- 5.52:1 reduction turns large commercial propellers.
- Hydraulic power shift eliminates gear shock.
- Heavy thrust bearing takes 70000 N.
- SAE bell housing matches large diesels.
- Massive cast housing weighs 880 kg.
Positioned inside high-displacement commercial engine rooms, the 880 kg Advance D300A-505 marine reduction gear transmission converts 737 HP input at 2400 RPM through a rugged 5.05:1 gear set.
- 5.05:1 ratio drives high displacement hulls.
- Input speed peaks at 2400 RPM.
- Power shift clutch provides smooth engagement.
- Center distance measures 350 mm spacing.
- Internal sump holds 20 liters oil.
Handling heavy diesel torque on ocean trawlers, the 880 kg Advance D300A-448 commercial vessel marine transmission delivers a 4.48:1 reduction ratio, taking 737 HP input at 2400 RPM continuously.
- 4.48:1 reduction drives commercial fishing trawlers.
- Integrated bearing absorbs 70000 N thrust.
- Hydraulic power shift ensures dependable reversing.
- SAE 0 housing fits standard engines.
- Heavy iron transmission weighs 880 kg.
Bolting straight to SAE 0 and 00 engine flanges, the 880 kg Advance D300A-400 hydraulic marine transmission gearbox steps down 737 HP at 2400 RPM with a 4.00:1 ratio.
- 4.00:1 ratio powers large harbor tugboats.
- Max input power reaches 737 HP.
- Hydraulic clutch cushions continuous heavy shifts.
- Large casing holds 20 liters fluid.
- Cast iron unit weighs 880 kg.
Running continuous 24/7 duty on industrial barges, the 650 kg Advance ADV300-544 heavy duty marine gearbox delivers a 5.44:1 reduction ratio, handling 737 HP at 2400 RPM without power drop.
- 5.44:1 reduction drives heavy cargo barges.
- Hydraulic multi-disc clutch locks smoothly underway.
- Output thrust capacity takes 50000 N.
- Center distance spans 270 mm spacing.
- Compact transmission case weighs 650 kg.
Managing river towboat and service vessel propulsion, the 650 kg Advance ADV300-494 marine reduction gear transmission converts 737 HP input at 2400 RPM through a deep 4.94:1 reduction gear set.
- 4.94:1 ratio drives commercial river towboats.
- Input speed handles up to 2400 RPM.
- Multi-disc clutch prevents heavy plate slipping.
- Standard bell housing fits SAE 0.
- Sturdy iron casing weighs 650 kg.
Engineered for vessel repower projects, the 650 kg Advance ADV300-461 inboard boat transmission gearbox steps down 737 HP at 2400 RPM with a 4.61:1 ratio to match commercial propulsion shafts.
- 4.61:1 ratio matches diverse workboat setups.
- 737 HP rating supports commercial diesels.
- Hydraulic clutch enables smooth helm control.
- Lubrication reservoir holds 16 liters oil.
- Standard iron body weighs 650 kg.
Turning commercial trawler propellers through rough open waters, the 650 kg Advance ADV300-447 commercial vessel marine transmission delivers a 4.47:1 reduction ratio with 737 HP input at 2400 RPM.
- 4.47:1 reduction powers ocean fishing trawlers.
- Integrated thrust bearing takes 50000 N.
- Multi-disc pack cushions aggressive gear shifts.
- Center distance measures 270 mm spacing.
- Heavy-duty casing weighs exactly 650 kg.
Operating inside medium-displacement commercial hulls, the 650 kg Advance ADV300-410 hydraulic marine transmission gearbox converts 737 HP input at 2400 RPM through a 4.10:1 ratio for efficient cruising thrust.
- 4.10:1 ratio powers medium commercial hulls.
- Input power handles 737 maximum HP.
- Hydraulic clutch prevents sudden driveline shock.
- Oil capacity spans 16 full liters.
- Durable gear unit weighs 650 kg.
Delivering a 3.53:1 reduction ratio for coastal freighters, the 650 kg Advance ADV300-353 heavy duty marine gearbox transfers 737 HP input at 2400 RPM into steady propeller drive power.
- 3.53:1 ratio drives coastal freight vessels.
- 2400 RPM input matches modern diesels.
- Multi-disc clutch ensures reliable forward reverse.
- Output shaft absorbs 50000 N thrust.
- Cast housing weighs exactly 650 kg.
Delivering a 3.00:1 reduction ratio with 737 HP capacity at 2400 RPM, the 650 kg Advance ADV300-300 heavy duty marine gearbox drives high-torque commercial propulsion systems on harbor tugboats effortlessly.
- 3.00:1 reduction steps down engine speed.
- Hydraulic multi-disc clutch cushions heavy shifts.
- Thrust bearing takes 50000 N loads.
- Center distance measures 270 mm precisely.
- Heavy cast iron body weighs 650kg.
Managing speed-oriented workboat propulsion lines, the 650 kg Advance ADV300-254 inboard boat transmission gearbox handles 737 HP at 2400 RPM with a 2.54:1 ratio during continuous repower operations.
- 2.54:1 ratio matches fast workboat shafts.
- Input speed peaks at 2400 RPM.
- Hydraulic clutch prevents sudden driveline slip.
- Internal reservoir holds 16 liters oil.
- Standard bell housing fits SAE sizes.
Running high-speed ferry propulsion systems, the 650 kg Advance ADV300-204 commercial vessel marine transmission converts 737 HP input at 2400 RPM through a 2.04:1 reduction gear set.
- 2.04:1 reduction powers fast service craft.
- 737 HP rating supports large diesels.
- Multi-disc clutch locks smoothly under throttle.
- Output thrust rating handles 50000 N.
- Compact transmission case weighs 650 kg.
Bolting straight to SAE 0 and SAE 1 engine housings, the 650 kg Advance ADV300-187 hydraulic marine transmission gearbox steps down 737 HP with a rapid 1.87:1 ratio.
- 1.87:1 ratio drives fast patrol boats.
- 2400 RPM input handles high-speed diesels.
- Center distance spans 270 mm spacing.
- Hydraulic control ensures dependable rapid reversing.
- Durable gear unit weighs 650 kg.
Turning coastal fishing boat propellers through choppy shallow waters, the 220 kg Advance 120C-335 marine reduction gear transmission converts 295 HP input at 2500 RPM via a 3.35:1 ratio.
- 3.35:1 reduction powers small fishing vessels.
- 2500 RPM input matches light diesels.
- Hydraulic clutch takes 20000 N thrust.
- Oil capacity spans 10 full liters.
- Standard iron casing weighs 220 kg.
Handling massive diesel torque on deep-sea trawlers, the 1600 kg Advance HCD1000-583 heavy duty marine gearbox delivers a 5.83:1 reduction, taking 1080 HP input at 2400 RPM continuously.
- 5.83:1 ratio turns massive ocean propellers.
- Max input power reaches 1080 HP.
- Massive thrust bearing absorbs 150000 N.
- Deep case holds 55 liters oil.
- Heavy cast housing weighs 1600 kg.
Positioned inside industrial barge engine rooms, the 1600 kg Advance HCD1000-547 commercial vessel marine transmission converts 1080 HP input at 2400 RPM through a rugged 5.47:1 reduction gear assembly.
- 5.47:1 reduction drives deep sea propulsion.
- Heavy-load clutch cushions high torque engagement.
- Center distance measures 480 mm spacing.
- SAE 00 housing fits large diesels.
- Massive iron transmission weighs 1600 kg.
Operating under heavy harbor tugboat towing loads, the 1600 kg Advance HCD1000-506 marine reduction gear transmission steps down 1080 HP at 2400 RPM with a deep 5.06:1 ratio.
- 5.06:1 ratio maximizes heavy bollard pull.
- Input speed peaks at 2400 RPM.
- Hydraulic power shift eliminates gear shock.
- Internal sump holds 55 liters fluid.
- Total dry weight reaches 1600 kg.
Driving heavy industrial river dredgers, the 1600 kg Advance HCD1000-490 hydraulic marine transmission gearbox handles 1080 HP input at 2400 RPM through a durable 4.90:1 reduction gear set.
- 4.90:1 reduction powers industrial river dredgers.
- Integrated bearing takes 150000 N thrust.
- Multi-disc clutch ensures reliable forward reverse.
- Center distance spans 480 mm distance.
- Rigid deep case weighs 1600 kg.
Advance Marine Gearboxes & Transmissions
Drop an Advance marine gearbox into your commercial vessel or heavy-duty workboat setup to handle high-torque demands without slippage. Advance manufactures heavy-duty marine transmissions engineered specifically to match the high horsepower outputs of modern inboard marine engines operating under continuous duty cycles. Mechanical crews and fleet operators rely on these robust hydraulic clutches and precision-ground helical gears to maintain smooth shifting profiles when running heavily loaded hulls. Mulmarine.com supplies genuine Advance propulsion components directly to your dock, bypassing hidden broker markups so you can complete your next overhaul on budget.
Why Fleet Operators Choose Advance Transmissions
These marine gearboxes stabilize your driveline efficiency through heavy internal shafts and optimized reduction ratios. Commercial mariners select Advance hardware to ensure uninterrupted service intervals during long-distance coastal transits.
- Multi-plate hydraulic clutches deliver positive engagement and minimal power loss under sustained peak loads.
- High-grade alloy steel housings resist structural twisting from high-torque marine propulsion systems.
- Integrated oil coolers maintain stable fluid temperatures to protect internal friction discs from premature glazing.
- Compatible with standard SAE housing configurations for direct bolting onto matching marine generators and auxiliary power setups.
Why Order Advance Gearboxes from Mulmarine.com
Waiting on heavy drivetrain components mid-season grounds your commercial vessel and drains your daily revenue. While local distributors place your shop on indefinite backorder queues, we maintain physical warehouse inventory of genuine Advance units and critical gear components. Whether you are performing routine marine engine maintenance or a complete overhaul on a damaged marine gearbox, we package and ship your heavy freight immediately to minimize drydock downtime.
How often should you change the oil in an Advance marine gearbox?
Change the gear oil every 500 operating hours, or at least once a year during routine service. You must drain the transmission sump, check the magnetic drain plug for metal shavings, and replace the internal oil filter element. Running contaminated fluid destroys the hydraulic clutch packs and causes gear face pitting.
Can Advance marine gearboxes handle continuous reverse rotation?
Yes, specific models feature symmetrical reduction ratios designed for continuous operation in both ahead and astern configurations. This makes them ideal for twin-screw vessels requiring counter-rotating props. Always verify your specific model index before locking the linkage into sustained reverse loads.