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Rotax Four-Stroke Engine

Assembly

Liquid-cooled flat-twin aircraft engine with reduction gearbox. A full specification article for this item is being written. Meanwhile its bill of materials and connections are below.

Rotax Four-Stroke Engine parts and their functions

11 top-level parts · 50 parts in total · full bill of materials below
Rotax Four-Stroke Engine parts diagram: 1 cylinder, 2 piston, 3 crankshaft, 4 carburetor, 5 ignition module, 6 spark plug, 7 helical gear pair, 8 radiator, 9 coolant pump, 10 o-ring set, 11 fastener set. 50 parts in 11 top-level items.
Rotax Four-Stroke 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 4× Cast cylinder with integral liquid-cooling jacket.
2 Piston 4× Forged aluminium piston with rings and pin.
3 Crankshaft 1× Forged crankshaft converting piston motion to rotation.
4 Carburetor 2× Constant-vacuum carburetor metering the fuel-air mixture.
5 Ignition Module 1× Dual capacitor-discharge ignition module firing the plugs.
6 Spark Plug 4× Ignites the air-fuel mixture in a spark-ignition engine.
7 Helical Gear Pair 1× reduction gearbox
8 Radiator 1× engine cooling
9 Coolant Pump 1× Electric or belt-driven centrifugal pump that circulates coolant through the engine, motor, battery, or heat exchanger.
10 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.
11 Fastener Set 30× Bolts, nuts, and washers.

3D model

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Build & assembly graph

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Bill of materials for Rotax Four-Stroke Engine

11 top-level lines · 11 rows shown · 50 parts total · indented to 3 levels
# Item / sub-assembly Part no. Qty/assy Ext. qty Parts Type
1 Cylinder ultralight-aircraft-cylinder 4× 4 · part
2 Piston ultralight-aircraft-piston 4× 4 · part
3 Crankshaft ultralight-aircraft-crankshaft 1× 1 · part
4 Carburetor ultralight-aircraft-carburetor 2× 2 · part
5 Ignition Module ultralight-aircraft-ignition-module 1× 1 · part
6 Spark Plug spark-plug 4× 4 · part
7 Helical Gear Pair gear-pair 1× 1 · part
8 Radiator radiator 1× 1 · part
9 Coolant Pump coolant-pump 1× 1 · part
10 O-Ring Set oring-set 1× 1 · part
11 Fastener Set fastener-set 30× 30 · part

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Where the rotax four-stroke 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