601838 - Special Nut

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- €1,30

€1,30

€1,30 - €1,30

€1,30

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OEM: Made by an Original Equipment Manufacturer. This part is made by an original equipment manufacturer or under their license, ensuring compatibility and quality.

Butterfly Spindle Nut for the carburettor.

The nut secures the throttle butterfly disc to its spindle inside the carburettor body, retaining the disc on the shaft that rotates to meter the air and fuel mixture drawn into the engine.

Alternative Codes

601838

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Frequently asked questions

What does the butterfly spindle nut do?

This nut secures the throttle butterfly disc to its spindle inside the carburettor. It retains the disc on the rotating shaft that meters the air and fuel mixture drawn into the engine, so a loose or missing nut can cause air leaks or a mis-seated butterfly.

Where is this nut located inside the carburettor?

This nut sits inside the carburettor body, fitted to the end of the throttle spindle where it passes through the butterfly disc. It's a small internal fitting rather than an external carburettor component.

What tools are needed to fit this nut?

Fitting this nut typically requires basic hand tools such as a small spanner or nut driver, along with care not to over-tighten and distort the thin butterfly disc. This is usually done during a carburettor strip-down or rebuild rather than as a standalone job.