Medium-Speed Diesel Engine
AssemblyA 460–480 mm bore four-stroke engine of roughly 20,000 parts, running on MGO or LNG at 500–514 rpm with around 1,150–1,200 kW per cylinder. A full specification article for this item is being written. Meanwhile its bill of materials and connections are below.
Medium-Speed Diesel Engine parts and their functions
10 top-level parts · 3,019 parts in total · full bill of materials below
| # | Part | Qty | What it does |
|---|---|---|---|
| 1 | Engine Block | 1× | Nodular cast-iron V-block carrying the crankshaft bearings and cylinder liners. |
| 2 | Crankshaft | 1× | Forged alloy-steel crankshaft, around 20 t for a V16 medium-speed engine. |
| 3 | Cylinder Unit 7 parts | 16× | One per cylinder, V16 configuration |
| 4 | Turbocharger | 2× | One per cylinder bank |
| 5 | Engine Fuel System 5 parts | 1× | High-pressure injection and supply system |
| 6 | Lube Oil System 6 parts | 1× | Lubricating oil circuit |
| 7 | Engine Cooling Circuit 5 parts | 1× | HT/LT fresh-water cooling circuit |
| 8 | Charge-Air & Exhaust System 5 parts | 1× | Charge-air and exhaust gas system |
| 9 | Engine Control System 6 parts | 1× | Engine management and safety system |
| 10 | Fastener Set | 1200× | Studs, unions and pipe-clip hardware across the engine |
3D model
No 3D model yet. Have a CAD file of this? Add a 3D model. STL renders right on this page; STEP, FreeCAD, and OpenSCAD sources are welcome too (openly licensed, like all 3D models on BOMwiki).
Build & assembly graph
expand / collapse · shared sub-assemblies converge · links to related products · est. labour
product / assembly
shared across products
atomic part
related product
Tap an assembly to expand/collapse · tap a part to open it · use “Open page” for any node · drag to pan, scroll to zoom.
Bill of materials for Medium-Speed Diesel Engine
10 top-level lines · 48 rows shown · 3,019 parts total · indented to 3 levels| # | Item / sub-assembly | Part no. | Qty/assy | Ext. qty | Parts | Type |
|---|---|---|---|---|---|---|
| 1 | Engine Block | cruise-ship-engine-block | 1× | 1 | · | part |
| 2 | Crankshaft | cruise-ship-crankshaft | 1× | 1 | · | part |
| 3 | Cylinder Unit 7 parts | cruise-ship-cylinder-unit | 16× | 16 | 55 | assembly |
| 3.1 | Piston | cruise-ship-piston | 1× | 16 | · | part |
| 3.2 | Cylinder Liner | cruise-ship-cyl-liner | 1× | 16 | · | part |
| 3.3 | Cylinder Head | cruise-ship-cyl-head | 1× | 16 | · | part |
| 3.4 | Connecting Rod | cruise-ship-conrod | 1× | 16 | · | part |
| 3.5 | Fuel Injector | cruise-ship-fuel-injector | 1× | 16 | · | part |
| 3.6 | O-Ring Set | oring-set | 6× | 96 | · | part |
| 3.7 | Fastener Set | fastener-set | 44× | 704 | · | part |
| 4 | Turbocharger | cruise-ship-turbocharger | 2× | 2 | · | part |
| 5 | Engine Fuel System 5 parts | cruise-ship-fuel-system | 1× | 1 | 164 | assembly |
| 5.1 | HP Fuel Pump | cruise-ship-fuel-pump | 16× | 16 | · | part |
| 5.2 | Fuel Rail | cruise-ship-fuel-rail | 2× | 2 | · | part |
| 5.3 | Fuel Pipe | cruise-ship-fuel-pipe | 60× | 60 | · | part |
| 5.4 | Pressure Sensor | pressure-sensor | 6× | 6 | · | part |
| 5.5 | O-Ring Set | oring-set | 80× | 80 | · | part |
| 6 | Lube Oil System 6 parts | cruise-ship-lube-system | 1× | 1 | 159 | assembly |
| 6.1 | Coolant Pump | coolant-pump | 2× | 2 | · | part |
| 6.2 | Lube Oil Cooler | cruise-ship-oil-cooler | 1× | 1 | · | part |
| 6.3 | Lube Oil Filter | cruise-ship-oil-filter | 2× | 2 | · | part |
| 6.4 | Lube Oil Pipe | cruise-ship-lube-pipe | 90× | 90 | · | part |
| 6.5 | Pressure Sensor | pressure-sensor | 4× | 4 | · | part |
| 6.6 | O-Ring Set | oring-set | 60× | 60 | · | part |
| 7 | Engine Cooling Circuit 5 parts | cruise-ship-cooling-circuit | 1× | 1 | 128 | assembly |
| 7.1 | Coolant Pump | coolant-pump | 2× | 2 | · | part |
| 7.2 | Thermostatic Valve | cruise-ship-thermostat-valve | 2× | 2 | · | part |
| 7.3 | Jacket Cooling Pipe | cruise-ship-jacket-pipe | 70× | 70 | · | part |
| 7.4 | Pressure Sensor | pressure-sensor | 4× | 4 | · | part |
| 7.5 | O-Ring Set | oring-set | 50× | 50 | · | part |
| 8 | Charge-Air & Exhaust System 5 parts | cruise-ship-charge-air | 1× | 1 | 13 | assembly |
| 8.1 | Charge-Air Cooler | cruise-ship-charge-cooler | 2× | 2 | · | part |
| 8.2 | Exhaust Manifold | cruise-ship-exhaust-manifold | 2× | 2 | · | part |
| 8.3 | Exhaust Bellows | cruise-ship-exhaust-bellows | 4× | 4 | · | part |
| 8.4 | Starting-Air Receiver | cruise-ship-air-receiver | 1× | 1 | · | part |
| 8.5 | Pressure Sensor | pressure-sensor | 4× | 4 | · | part |
| 9 | Engine Control System 6 parts | cruise-ship-engine-control | 1× | 1 | 471 | assembly |
| 9.1 | Engine Control Cabinet 4 parts | cruise-ship-engine-ecu | 1× | 1 | 170 | assembly |
| 9.1.1 | Bare PCB | pcb-bare | 6× | 6 | · | part |
| 9.1.2 | Microcontroller | mcu | 4× | 4 | · | part |
| 9.1.3 | Relay | relay | 40× | 40 | · | part |
| 9.1.4 | Connector | connector | 120× | 120 | · | part |
| 9.2 | Speed Governor | cruise-ship-governor | 1× | 1 | · | part |
| 9.3 | Engine Sensor | cruise-ship-engine-sensor | 64× | 64 | · | part |
| 9.4 | Pressure Sensor | pressure-sensor | 12× | 12 | · | part |
| 9.5 | Wire Bundle | wire-bundle | 24× | 24 | · | part |
| 9.6 | Connector | connector | 200× | 200 | · | part |
| 10 | Fastener Set | fastener-set | 1200× | 1,200 | · | part |
Something wrong in this list? Report a problem with this BOM.
Where the medium-speed diesel engine is used
1 product across 1 domain contain it, directly or inside a sub-assemblyUsed in 1 assembly
Sourcing: possible vendors
Browse the supplier directory → Prices, MOQ, and lead times are algorithmic estimates, not quotes, and not claims about these companies. Company mappings are curated by keyword; est. price band $500–$50k. How estimates work| Vendor | HQ | Specialty | MOQ | Lead time |
|---|---|---|---|---|
| weichai.com ↗ | Weifang, CN | Diesel & power engines | 50 units | 12–16 wks |
| cumminsindia.com ↗ | Pune, IN | Diesel engines | 50 units | 12–16 wks |
|
🇨🇳Yuchai
yuchai.com ↗
|
Yulin, CN | Diesel engines | 50 units | 12–16 wks |
| koel.co.in ↗ | Pune, IN | Diesel & gas engines | 50 units | 12–16 wks |
| ashokleyland.com ↗ | Chennai, IN | Engines & commercial vehicles | 50 units | 12–16 wks |