The speed input range of the Advance MB242 marine gearbox is 1000-2500 RPM, with engine input power from 155.4 kW to 216.3 kW. the center distance is 242 mm, the reduction ratio range is 2.00-5.88, the transmission capacity range is 0.074-0.143 kW/RPM, the rated propeller thrust is 30 KN, and the input shaft is in the train Opposite to the output shaft.
Advance MB242 marine gearbox is composed of transmission shaft, output coupling, input coupling, oil pressure gauge, oil Filter, control system, oil pump and other important components.
Advance MB242 marine gearboxes provides three types of control system which are push-pull flexible shaft, electric control and pneumatic control for customers to choose. To meet the different requirement of coupling with different engine brand and models, Advance MB242 marine gearboxes provide different SAE size coupling and housing including SAE 1 2 3, flywheel SAE 14 11.5 is available……
All of our Advance MB series marine gearbox can provide CCS classification certificate, some of series can provide international classifications with extra costs which mainly including French BV, British LR, American ABS, Japanese NK , Norway DNV-GL, Russia RS, South Korea KR, Italy RINA and other classification societies.
Advantages Of Advance MB242 Marine Gearbox Parts
It has the functions of reversing, clutching, and deceleration, and can be matched with various marine diesel engines with equivalent torque to form a unit. Applicable to all kinds of medium and small ships.
The gearbox has a compact structure and can be controlled by a variety of control methods. The operation is light and sensitive, and it can be operated from a distance, which is convenient for driving and machine integration.
The advanced design makes the connection of the gearbox very soft, easy to maintain, more durable, and has the characteristics of large transmission power, small size and light weight.
The toothed elastic input coupling and connection cover can be matched with various flywheels and flywheel shells to connect with the host, easy installation and beautiful appearance
With excellent deceleration effect and strong bearing propeller thrust
Professional gearbox specialists and after-sales service, spare parts directly available from stock.
Technical Specifications
| Gearbox Model: | MB242 |
| Input Speed: | 1000-2500 RPM |
| Power: | 155.4-216.3 kW @ 2100 RPM |
| Center Distance: | 242 mm |
| Trans.Capacity: | 0.074-0.103 kW / RPM |
| Reduction Ratio: | 2.00-5.88 |
| Rated Thrust: | 30 kN |
| Dimension: | 442 mm * 774 mm * 763 mm |
| Net Weight: | 385 kg |
| Lead Time: | 15-30 Working Days |
| Payment Terms: | T/T ,L/C |
Click Kit Name to Check Part List
- Input Shaft Assembly
- Transmission Shaft Assembly
- Output Shaft Assembly
- Housing Assembly
- Oil Pipe System Assembly
- Toothed Input Couping Assembly
No. | Part Name | Part No. | Qty. | Remarks |
| 1 | Input shaft sleeve | MB242 – 01 – 001 | 1 | / |
| 2 | Bearing 50314 | GB277 – 82 | 1 | Standard part |
| 3 | Thrust ring 150/159.7 | GB305 – 82 | 1 | Standard part |
| 4 | Transmission gear | MB242 – 01 – 002 | 1 | / |
| 5 | Bearing 42215 | GB283 – 81 | 1 | Standard part |
| 6 | Bearing 42312 | GB283 – 81 | 1 | Standard part |
| 7 | Pinion | MB242 – 01 – 003/3~6 | 1 | Footnote: reduction ratio |
| 8 | Bearing 2515 | GB283 – 81 | 1 | Standard part |
| 9 | Clutch housing | MB242 – 01 – 004 | 1 | / |
| 10 | Clutch bracket | MB242 – 01 – 005 | 1 | / |
| 11 | Internal disc | MB242 – 01 – 006 | 7 | / |
| 12 | External disc | MB242 – 01 – 007 | 7 | / |
| 13 | Key 8×36 | GB1096 – 79 | 1 | Standard part |
| 14 | Hydraulic piston | MB242 – 01 – 008 | 1 | / |
| 15 | Sleeve | MB242 – 01 – 009 | 1 | / |
| 16 | Spacer | MB242 – 01 – 010 | 1 | / |
| 17 | Bearing 502206 | GB284 – 81 | 1 | Standard part |
| 18 | Nut M30x1.5 | GB1007 – 76 | 1 | / |
| 19 | Oil sealing | MB242 – 01 – 011 | 2 | / |
| 20 | Piston ring | MB242 – 01 – 012 | 1 | / |
| 21 | Cylinder bracket | MB242 – 01 – 013 | 1 | / |
| 22 | Emergency screw | MB242 – 01 – 014 | 2 | / |
| 23 | Plug | Q21 – 14 | 2 | / |
| 24 | Spring | 135 – 01 – 018 | 6 | / |
| 25 | Thrust ring | 300 – 01 – 004 | 1 | / |
| 26 | Screw M8x25 | GB70 – 85 | 4 | Standard part |
| 27 | Washer 8 | GB956 – 76 | 4 | Standard part |
| 28 | Input shaft | MB242 – 01 – 015 | 1 | / |
| 29 | Thrust ring | MB242 – 01 – 016 | 1 | / |
| 30 | Bolt M10x75 | GB30 – 76 | 4 | Standard part |
| 31 | Lockwasher | MB242 – 01 – 020 | 2 | / |
| 32 | Adjusting nut | MB242 – 01 – 018 | 1 | / |
| 33 | Nut | MB242 – 01 – 019 | 1 | / |
| 34 | Washer 22 | Q21 – 39 | 1 | / |
| 35 | Spacer | MB242 – 01 – 017 | 1 | / |
| ——END—— | ||||

No. | Part Name | Part No. | Qty. | Remarks |
| 1 | Adjusting nut | MB242 – 02 – 001 | 1 | / |
| 2 | Bearing 50314 | GB277 – 82 | 1 | Standard part |
| 3 | Thrust ring 150/159.7 | GB305 – 82 | 1 | Standard part |
| 4 | Transmission gear | MB242 – 02 – 002 | 1 | / |
| 5 | Bearing 42215 | GB283 – 81 | 1 | Standard part |
| 6 | Bearing 42312 | GB283 – 81 | 1 | Standard part |
| 7 | Pinion | MB242 – 01 – 003/3~6 | 1 | Footnote: reduction ratio |
| 8 | Bearing 2515 | GB283 – 81 | 1 | Standard part |
| 9 | Clutch housing | MB242 – 01 – 004 | 1 | / |
| 10 | Clutch bracket | MB242 – 01 – 005 | 1 | / |
| 11 | Internal disc | MB242 – 01 – 006 | 7 | / |
| 12 | External disc | MB242 – 01 – 007 | 7 | / |
| 13 | Key 8×36 | GB1096 – 79 | 1 | Standard part |
| 14 | Hydraulic piston | MB242 – 01 – 008 | 1 | / |
| 15 | Sleeve | MB242 – 01 – 009 | 1 | / |
| 16 | Spacer | MB242 – 01 – 010 | 1 | / |
| 17 | Bearing 502206 | GB284 – 81 | 1 | Standard part |
| 18 | Left – handed nut M30x1.5 | GB1007 – 76 | 1 | Standard part |
| 19 | Connecting sleeve | MB242 – 02 – 003 | 1 | / |
| 20 | Pin 6×28 | GB119 – 76 | 1 | Standard part |
| 21 | Oil sealing | MB242 – 01 – 011 | 2 | / |
| 22 | Piston ring | MB242 – 01 – 012 | 1 | / |
| 23 | Cylinder bracket | MB242 – 01 – 013 | 1 | / |
| 24 | Emergency screw | MB242 – 01 – 014 | 2 | / |
| 25 | Plug φ7 | Q21 – 14 | 2 | / |
| 26 | Spring | 135 – 01 – 018 | 6 | / |
| 27 | Thrust ring | 300 – 01 – 004 | 1 | / |
| 28 | Screw M8x25 | GB70 – 85 | 8 | Standard part |
| 29 | Washer 8 | GB93 – 76 | 8 | Standard part |
| 30 | Transmission shaft | MB242 – 02 – 004 | 1 | / |
| 31 | Thrust ring | MB242 – 01 – 016 | 1 | / |
| 32 | Spacer | MB242 – 01 – 017 | 1 | / |
| 33 | Screw | MB242 – c2 – 005 | 1 | / |
| ——END—— | ||||

Item No. | Name | Order No. | Qty./unit | Remarks |
| 1 | Lock plate | MB242 – 03 – 001 | 1 | / |
| 2 | Plate | MB242 – 03 – 002 | 1 | / |
| 3 | Bearing 42216 | GB283 – 81 | 1 | Standard part |
| 4 | Ring | MB242 – 03 – 003 | 1 | / |
| 5 | Wheel | MB242 – 03 – 004/3~6 | 1 | Footnote: reduction ratio |
| 6 | Key 25×100 | GB1096 – 79 | 1 | Standard part |
| 7 | Bearing 27319E | GB297 – 84 | 2 | Standard part |
| 8 | Output shaft | MB242 – 03 – 005 | 1 | / |
| 9 | Bolt M18x45 | GB21 – 76 | 6 | Standard part |
| 10 | “O” ring 103×5.3 | GB3452.1 – 82 | 1 | Standard part |
| 11 | Rear plate | MB270 – 03 – 009A | 1 | / |
| 12 | Output coupling | MB242 – 03 – 006 | 1 | / |
| 13 | Lockwasher | 135A – 03A – 007 | 1 | / |
| 14 | Companion coupling | 135A – 03A – 006 | 1 | Special order |
| 15 | Bolt M24x60 | GB21 – 76 | 8 | for companion coupling |
| 16 | Washer M24 | GB93 – 76 | 8 | for companion coupling |
| 17 | Nut M24 | GB51 – 76 | 8 | for companion coupling |
| 18 | Adjusting washer | MB242 – 03 – 007 | 2 | / |
| ——END—— | ||||

No. | Part Name | Part No. | Qty. | Remarks |
| 1 | Dipstick element | 300 – 04 – 300 | 1 | / |
| 2 | Dipstick case | MB242 – 04 – 001 | 1 | / |
| 3 | Name plate | Q25 – 01 – 01 | 1 | / |
| 4 | Rivet 2×6 | GB827 – 76 | 4 | Standard part |
| 5 | Bolt M10x85 | GB30 – 76 | 2 | Standard part |
| 6 | Cover | 1601 – 0018 | 1 | / |
| 7 | Screw M6x10 | GB67 – 76 | 2 | Standard part |
| 8 | Breather element | 120C – 04 – 200 | 1 | / |
| 9 | Bell housing (SAE, No1) | MB242 – 04 – 002 | 1 | Parts for selection |
| 9 | Bell housing (6135) | MB242 – 04 – 002×1 | 1 | / |
| 10 | Gasket | MB242 – 04 – 003 | 1 | / |
| 11 | Upper cover | MB242 – 04 – 004 | 1 | / |
| 12 | Plug Z1/4″ | Q20 – 02 | 1 | / |
| 13 | Filter | WU63 100 – J | 1 | with safety device |
| 13 | Gasket | MB242 – 04 – 101 | 1 | / |
| 13 | Cover | MB242 – 04 – 102 | 1 | / |
| 14 | Front housing cover | MB242 – 04 – 201 | 1 | / |
| 14 | Housing | MB242 – 04 – 202 | 1 | / |
| 14 | Rear housing cover | MB242 – 04 – 203 | 1 | / |
| 15 | Screw M12 | GB825 – 76 | 2 | / |
| 16 | Support | MB242 – 04 – 005 | 2 | Parts for selection |
| 16 | Support | MB242 – 04 – 005×1 | 2 | Parts for selection |
| 17 | Pin 10×30 | GB120 – 76 | 4 | Standard part |
| 18 | Bolt M16x40 | GB30 – 76 | 11 | Standard part |
| 19 | Washer 16 | GB93 – 76 | 11 | Standard part |
| 20 | Bolt M10x55 | GB30 – 76 | 12 | Standard part |
| 21 | Washer 10 | GB93 – 76 | 30 | Standard part |
| 22 | Bolt M8x30 | GB30 – 76 | 22 | Standard part |
| 23 | Washer 8 | GB93 – 76 | 26 | Standard part |
| 24 | Oil sealing 80x105x12PA-SC | HG4 – 692 – 67 | 1 | / |
| 25 | Front cover end | MB242 – 04 – 006 | 1 | / |
| 26 | Gasket | MB242 – 04 – 007 | 1 | / |
| 27 | Gasket | MB242 – 04 – 008 | 1 | / |
| 28 | Lock screw | MB170 – 04 – 021 | 2 | / |
| 29 | Screw M10x16 | GB70 – 76 | 8 | Standard part |
| 30 | Gasket | MB242 – 04 – 009 | 1 | / |
| 31 | Plug | Q21 – 14 | 5 | / |
| 32 | Pin 5×8 | GB119 – 76 | 3 | Standard part |
| 33 | Rear cover end | MB242 – 04 – 010 | 1 | / |
| 34 | Gasket | MB242 – 04 – 011 | 1 | / |
| 35 | Sleeve for oil parting | MB242 – 04 – 012 | 2 | / |
| 36 | Bolt M10x30 | GB21 – 76 | 10 | Standard part |
| 37 | Rear end cover | MB242 – 04 – 013 | 1 | / |
| 38 | Gasket | MB242 – 04 – 014 | 1 | / |
| 39 | Oil sealing 125x160x10 | HG4 – 692 – 67 | 1 | Standard part |
| 40 | Single – mouth, double – direction oil sealing B-SC125x160x15DHX | B-SC125x160x15DHX | 1 | Standard part |
| 41 | Bolt M12x30 | GB21 – 76 | 8 | Standard part |
| 42 | Washer 12 | GB93 – 76 | 8 | Standard part |
| 43 | “O” ring 23.6×3.55 | GB3452.1 – 82 | 1 | Standard part |
| 44 | Oil shield | MB242 – 04 – 015 | 1 | / |
| 45 | Plug M22x1.5 | Q21 – 15 | 1 | / |
| 46 | Washer 22 | Q21 – 39 | 1 | / |
| 47 | Plug M14x1.5 | Q20 – 01 | 1 | / |
| 48 | Washer 14 | Q21 – 39 | 1 | / |
| 49 | Plug φ10 | Q21 – 38 | 3 | Standard part |
| 50 | Pump | BB – B25A – 1 | 1 | / |
| 50 | Pump gasket | MB170 – 04 – 022 | 1 | / |
| 50 | Connecting plate | MB242 – 04 – 301 | 1 | / |
| 51 | Gasket | MB242 – 04 – 016 | 1 | / |
| 52 | Front cover | MB242 – 04 – 017 | 1 | / |
| 53 | Gasket | MB242 – 04 – 018 | 1 | / |
| 54 | Bolt M8x16 | GB30 – 76 | 4 | / |
| 55 | Front cover | MB242 – 04 – 019 | 1 | / |
| 56 | Gasket | MB242 – 04 – 020 | 1 | / |
| 57 | Plug Z1″ | Q20 – 02 | 2 | / |
| 58 | Nozzle element | MB242 – 04 – 400 | 1 | / |
| 59 | Bottom cover | MB242 – 04 – 021 | 1 | / |
| ——END—— | ||||

No. | Part Name | Part No. | Qty. | Remarks |
| 1 | Pump sucking – pipe group | MB242 – 05 – 100 | 1 | / |
| 2 | Cooler inlet – pipe group | MB242 – 05 – 200 | 1 | L = 760 mm |
| 3 | Cooler outlet – pipe group | MB242 – 05 – 300 | 1 | L = 410 mm |
| ——END—— | ||||
No. | Part Name | Part No. | Qty. | Remarks |
| 1 | Internal toothed ring | Q05 – 02 – 03 | 1 | for SAE, No 14 |
| 1 | Internal toothed ring | Q05 – 02 – 02 | 1 | for Diesel 6135 |
| 2 | Toothed rubber block | Q26 – 06 – 02 | 24 | / |
| 3 | External toothed ring | Q05 – 05 – 01 | 1 | / |
| 4 | Washer 12 | GB93 – 76 | 10 | Standard part |
| 5 | Bolt M12x30 | GB30 – 76 | 10 | Standard part |
| ——END—— | ||||

Note: All Above Data are Just for Reference, All Data Might Change Without Notices or Updates, Please Contact Our Sales Team to Confirm All Details Via WhatsApp or Email.

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