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Discussion History

Main Engine

Assembly

A medium-speed four-stroke diesel driving the propeller through a reduction gearbox. A full specification article for this item is being written. Meanwhile its bill of materials and connections are below.

Main Engine parts and their functions

6 top-level parts · 243 parts in total · full bill of materials below
Main Engine parts diagram: 1 cylinder unit, 2 crankshaft, 3 turbocharger, 4 coolant pump, 5 ball bearing, 6 oil seal. 243 parts in 6 assemblies.
Main Engine parts diagram. Numbers match the table below; each box is one top-level part or assembly with what it contains.
#PartQtyWhat it does
1 Cylinder Unit 6 parts 7× Power cylinders
2 Crankshaft 1× Forged crankshaft
3 Turbocharger 1× Exhaust-gas turbocharger
4 Coolant Pump 3× Cooling pumps
5 Ball Bearing 6× Auxiliary bearings
6 Oil Seal 8× Crankcase and pump seals

3D model

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Build & assembly graph

expand / collapse · shared sub-assemblies converge · links to related products · est. labour
product / assembly shared across products atomic part related product

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Bill of materials for Main Engine

6 top-level lines · 12 rows shown · 243 parts total · indented to 3 levels
# Item / sub-assembly Part no. Qty/assy Ext. qty Parts Type
1 Cylinder Unit 6 parts cement-carrier-ship-engine-cylinder 7× 7 32 assembly
1.1 Engine Piston cement-carrier-ship-piston 1× 7 · part
1.2 Cylinder Liner cement-carrier-ship-liner 1× 7 · part
1.3 Cylinder Head cement-carrier-ship-cyl-head 1× 7 · part
1.4 Fuel Injector cement-carrier-ship-injector 1× 7 · part
1.5 O-Ring Set oring-set 4× 28 · part
1.6 Fastener Set fastener-set 24× 168 · part
2 Crankshaft cement-carrier-ship-crankshaft 1× 1 · part
3 Turbocharger cement-carrier-ship-turbocharger 1× 1 · part
4 Coolant Pump coolant-pump 3× 3 · part
5 Ball Bearing ball-bearing 6× 6 · part
6 Oil Seal oil-seal 8× 8 · part

Where the main engine is used

1 product across 1 domain contain it, directly or inside a sub-assembly

Used in 1 assembly

Propulsion Train

Sourcing: possible vendors

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
VendorHQSpecialtyMOQLead time
🇨🇳Weichai Power
weichai.com ↗ 		Weifang, CN Diesel & power engines 50 units 12–16 wks
🇮🇳Cummins India
cumminsindia.com ↗ 		Pune, IN Diesel engines 50 units 12–16 wks
🇨🇳Yuchai
yuchai.com ↗ 		Yulin, CN Diesel engines 50 units 12–16 wks
🇮🇳Kirloskar Oil Engines
koel.co.in ↗ 		Pune, IN Diesel & gas engines 50 units 12–16 wks
🇮🇳Ashok Leyland
ashokleyland.com ↗ 		Chennai, IN Engines & commercial vehicles 50 units 12–16 wks