450 cc Four-Stroke Engine
AssemblyLiquid-cooled DOHC single producing high power for its weight, peaking near 60 hp. A full specification article for this item is being written. Meanwhile its bill of materials and connections are below.
450 cc Four-Stroke Engine parts and their functions
11 top-level parts · 59 parts in total · full bill of materials below
| # | Part | Qty | What it does |
|---|---|---|---|
| 1 | Crankcase | 1× | Magnesium-alloy case minimising mass at the engine core. |
| 2 | Crankshaft | 1× | Lightweight crank tuned for fast revving and quick throttle response. |
| 3 | Forged Piston | 1× | Forged short-skirt |
| 4 | Titanium Connecting Rod | 1× | Titanium |
| 5 | Cylinder Head 4 parts | 1× | Four-valve head with titanium valves and finger-follower actuation for high rpm. |
| 6 | Camshaft | 2× | DOHC, finger followers |
| 7 | 5-Speed Gearbox 4 parts | 1× | 5-speed |
| 8 | Coned-Disc Clutch 3 parts | 1× | Coned-disc clutch |
| 9 | Oil Seal | 4× | Spring-loaded rotary lip seal that keeps lubricant inside a housing and dirt out where a shaft passes through, sized to DIN 3760. |
| 10 | Ball Bearing | 6× | Deep-groove radial ball bearing. |
| 11 | Coolant System 4 parts | 1× | Twin radiators |
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Bill of materials for 450 cc Four-Stroke Engine
11 top-level lines · 26 rows shown · 59 parts total · indented to 3 levels| # | Item / sub-assembly | Part no. | Qty/assy | Ext. qty | Parts | Type |
|---|---|---|---|---|---|---|
| 1 | Crankcase | motocross-bike-crankcase | 1× | 1 | · | part |
| 2 | Crankshaft | motocross-bike-crankshaft | 1× | 1 | · | part |
| 3 | Forged Piston | motocross-bike-piston | 1× | 1 | · | part |
| 4 | Titanium Connecting Rod | motocross-bike-conrod | 1× | 1 | · | part |
| 5 | Cylinder Head 4 parts | motocross-bike-cylinder-head | 1× | 1 | 13 | assembly |
| 5.1 | Titanium Valve | motocross-bike-valve-set | 4× | 4 | · | part |
| 5.2 | Valve Spring | motocross-bike-valve-spring | 4× | 4 | · | part |
| 5.3 | Finger Follower | motocross-bike-finger-follower | 4× | 4 | · | part |
| 5.4 | Head Gasket | motocross-bike-head-gasket | 1× | 1 | · | part |
| 6 | Camshaft | motocross-bike-camshaft | 2× | 2 | · | part |
| 7 | 5-Speed Gearbox 4 parts | motocross-bike-gearbox | 1× | 1 | 13 | assembly |
| 7.1 | Helical Gear Pair | gear-pair | 5× | 5 | · | part |
| 7.2 | Shift Drum | motocross-bike-shift-drum | 1× | 1 | · | part |
| 7.3 | Shift Fork | motocross-bike-shift-fork | 3× | 3 | · | part |
| 7.4 | Ball Bearing | ball-bearing | 4× | 4 | · | part |
| 8 | Coned-Disc Clutch 3 parts | motocross-bike-clutch | 1× | 1 | 10 | assembly |
| 8.1 | Clutch Plate | motocross-bike-clutch-plate | 8× | 8 | · | part |
| 8.2 | Clutch Basket | motocross-bike-clutch-basket | 1× | 1 | · | part |
| 8.3 | Diaphragm Spring | motocross-bike-diaphragm-spring | 1× | 1 | · | part |
| 9 | Oil Seal | oil-seal | 4× | 4 | · | part |
| 10 | Ball Bearing | ball-bearing | 6× | 6 | · | part |
| 11 | Coolant System 4 parts | coolant-system | 1× | 1 | 7 | assembly |
| 11.1 | Coolant Pump | coolant-pump | 1× | 1 | · | part |
| 11.2 | Coolant Tank | coolant-tank | 1× | 1 | · | part |
| 11.3 | Coolant Hose | coolant-hose | 4× | 4 | · | part |
| 11.4 | Coolant | coolant | 1× | 1 | · | part |
Where the 450 cc four-stroke 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 |