This Throttle Shaft with Lever is a genuine Stihl replacement part for the TS400 disc cutter. Built from durable metal, it forms the rotating spindle and lever that control the carburettor throttle plate, allowing accurate engine speed control from idle to full load. Replacing a worn or bent shaft restores smooth trigger response and reliable power delivery, helping the machine cut cleanly under demanding site conditions. As an OEM Stihl component (MPN: 4223 120 7101), it matches the original dimensions and linkage points for a straightforward fit and consistent operation. Suitable for professional users and DIY owners alike, it is a dependable choice when servicing the carburettor or resolving issues such as sticking throttle, poor return, or unstable running on a Stihl TS400.

Key Features:
– Genuine Stihl OEM part for assured compatibility and performance on TS400
– Direct replacement for worn or damaged throttle shaft and lever assemblies
– Precisely made to help maintain stable idle and responsive acceleration
– Robust metal construction for long service life in dusty, high-vibration environments
– Restores smooth throttle action and consistent engine speed control
– Matches original linkage geometry for reliable trigger feel
– Suitable for routine servicing or full carburettor overhaul
– Manufacturer Part Number: 4223 120 7101

Typical Applications:
Used during maintenance or repair of Stihl TS400 disc cutters when throttle control becomes sticky, inconsistent, or erratic due to wear. Ideal when rebuilding the carburettor, solving poor idle, surging under load, or throttle not returning properly. Helps maintain reliable engine response for cutting concrete, masonry, and metal on construction sites, landscaping work, and tool hire fleets.

Also known as:
Throttle spindle, carburettor throttle shaft, throttle control lever, carb throttle lever, throttle linkage, carburettor spindle, throttle rod, throttle shaft assembly.

Fits Models:
TS400

Alternate Part Numbers:
4223-120-7101, 42231207101

Product Specifications