STIHL Carburettor - 4241 120 0623

The STIHL Carburettor 4241 120 0623 restores calibrated air-fuel metering and maintains stable throttle response in 2-stroke industrial equipment through a diaphragm-compensated fuel system engineered for direct OEM mounting.

Key Features

• Pressure-regulating dual diaphragm arrangement for consistent flow under fluctuating operating temperatures
• Precision-cut internal passages with corrosion-resistant metallurgy to prevent sediment blockage
• Adjustable main nozzle and idle stop screw sized to factory tolerance specifications
• Integrated paper gasket and pre-formed fuel seals for vibration-resistant sealing
• Primed fuel delivery port compatible with standard hand-operated primer bulb assemblies

Product Details

• Manufacturer: STIHL
• OEM Part Number: 4241 120 0623
• Cut Type: Diaphragm-type carburetor with vacuum-driven membrane pump
• Inlet Configuration: Single hose connection with integrated strainer mount
• Sealing Standard: Original equipment gasket geometry and bolt spacing

Compatibility

• FS series brushcutters (FS 55, FS 70, FS 80, FS 86, FS 91, FS 100, FS 111, FS 120)
• K series backpack engines and sprAYER pumps
• RM series walk-behind machines and Techline cutting attachments
• Direct replacement for units displaying stamped casting code 4241 120 0623 on the original carburetor body
• Requires verification of fuel line routing and throttle linkage length prior to installation due to model-year revisions