Description
Overview:
The Choke Shaft for Stihl BR500 and BR550 blowers is a Genuine Stihl part designed to control the choke mechanism on your backpack blower's carburettor. Made from durable metal for long service life, it regulates air intake during cold starting and warm restarts, helping the engine to fire reliably and settle to a steady idle. Its precise fit maintains correct choke movement and alignment, reducing the risk of hard starting or stalling. Built to OEM specification with the correct dimensions and interfaces, it replaces worn, bent, or corroded shafts without modification. Manufacturer Part Number (MPN): 4282 121 3000. Suitable for professional landscaping use and domestic garden maintenance where dependable blower performance is required.
Key Features:
- Genuine Stihl part for assured compatibility and correct fitment
- Durable metal construction to resist wear and deformation in daily use
- Accurate control of air intake for easier cold starts and stable idle
- Helps restore proper choke travel and alignment in the carburettor
- Direct replacement design; straightforward to install with basic tools
- Supports reliable performance on high-use backpack blowers
- OEM tolerances help prevent air leaks or sticking in the choke mechanism
- Suitable for routine maintenance and preventative repairs
Typical Applications:
Used to replace a damaged, bent, or seized choke shaft on Stihl backpack blowers operating in landscaping, grounds maintenance, facilities management, and domestic gardening. Ideal when a blower becomes hard to start, needs repeated pulls, or the choke position will not hold. Helps keep equipment dependable for leaf clearance, site clean‐ups, and general debris removal.
Also known as:
Choke rod, choke lever shaft, choke control rod, choke actuator shaft, carburettor choke spindle, blower choke control, starter air valve shaft. These terms describe the same component that links the choke control to the carburettor's choke plate to enrich the mixture for starting.
Fits Models:
BR500, BR550, BR600, BR700
Alternate Part Numbers:
4282-121-3000, 42821213000
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