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Engine

Assembly

Air-cooled parallel-twin around 650 cc tuned for midrange punch, with cooling fins as a styling cue. A full specification article for this item is being written. Meanwhile its bill of materials and connections are below.

Engine parts and their functions

11 top-level parts · 30 parts in total · full bill of materials below
Engine parts diagram: 1 crankcase, 2 finned cylinder block, 3 piston & rings, 4 crankshaft, 5 cylinder head (SOHC), 6 valvetrain, 7 oil system, 8 spark plug, 9 ball bearing, 10 oil seal, 11 o-ring set. 30 parts in 11 top-level items.
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 Crankcase 1×
2 Finned Cylinder Block 1×
3 Piston & Rings 2×
4 Crankshaft 1×
5 Cylinder Head (SOHC) 1×
6 Valvetrain 4 parts 1×
7 Oil System 3 parts 1×
8 Spark Plug 2× Ignites the air-fuel mixture in a spark-ignition engine.
9 Ball Bearing 4× Deep-groove radial ball bearing.
10 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.
11 O-Ring Set 1× Set of elastomer rings seated in grooves to seal static or slow-moving joints against fluid and gas, sized to ISO 3601.

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 Engine

11 top-level lines · 18 rows shown · 30 parts total · indented to 3 levels
# Item / sub-assembly Part no. Qty/assy Ext. qty Parts Type
1 Crankcase cafe-racer-motorcycle-crankcase 1× 1 · part
2 Finned Cylinder Block cafe-racer-motorcycle-cylinder-block 1× 1 · part
3 Piston & Rings cafe-racer-motorcycle-piston-set 2× 2 · part
4 Crankshaft cafe-racer-motorcycle-crankshaft 1× 1 · part
5 Cylinder Head (SOHC) cafe-racer-motorcycle-cylinder-head 1× 1 · part
6 Valvetrain 4 parts cafe-racer-motorcycle-valvetrain 1× 1 10 assembly
6.1 Camshaft cafe-racer-motorcycle-camshaft 1× 1 · part
6.2 Valve cafe-racer-motorcycle-valve 4× 4 · part
6.3 Rocker Arm cafe-racer-motorcycle-rocker 4× 4 · part
6.4 Cam Chain cafe-racer-motorcycle-cam-chain 1× 1 · part
7 Oil System 3 parts cafe-racer-motorcycle-oil-system 1× 1 3 assembly
7.1 Oil Pump cafe-racer-motorcycle-oil-pump 1× 1 · part
7.2 Oil Cooler cafe-racer-motorcycle-oil-cooler 1× 1 · part
7.3 Oil Filter cafe-racer-motorcycle-oil-filter 1× 1 · part
8 Spark Plug spark-plug 2× 2 · part
9 Ball Bearing ball-bearing 4× 4 · part
10 Oil Seal oil-seal 4× 4 · part
11 O-Ring Set oring-set 1× 1 · part

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Where the engine is used

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

Used 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
VendorHQSpecialtyMOQLead 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