The 4140 141 3801 Choke Shutter is a genuine STIHL replacement component designed to control airflow within the carburetor during cold starts. By restricting air intake, the choke shutter enriches the fuel mixture, allowing for easier starting and smoother warm-up of your STIHL engine.
Key Features
✅ Part Number: 4140 141 3801
✅ OEM Quality: Genuine STIHL choke valve
✅ Precision Fit: Designed specifically for STIHL carburetor assemblies
✅ Durable Construction: Withstands fuel exposure, heat, and vibration
✅ Smooth Operation: Ensures consistent airflow control during startup
Benefits
✔️ Improves Cold Starts – Creates a richer air-fuel mixture for easier ignition
✔️ Restores Proper Choke Function – Replaces bent, stuck, or worn shutters
✔️ Ensures Smooth Engine Warm-Up – Maintains correct airflow during initial run
✔️ Quick to Install – Perfect for carburetor repairs or servicing
✔️ STIHL Reliability – Built to OEM standards for performance and longevity
What It’s Used For
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Replacing a damaged or malfunctioning choke shutter
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Supporting proper cold-start performance
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Maintaining carburetor function during regular engine servicing
