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- 4282 025 1901 – STIHL Exhaust Valve Genuine OEM Part
Description
4282 025 1901 – STIHL Exhaust Valve Genuine OEM Part
Fits: BR 500 / BR 550 / BR 600 (Engine Assembly)
The STIHL Exhaust Valve 4282 025 1901 is a genuine OEM replacement engine component designed for select STIHL backpack blowers. This exhaust valve plays a critical role in the engine’s exhaust system by allowing burned gases to exit the combustion chamber efficiently, supporting proper airflow and engine performance.
Over time, exhaust valves may wear, become carbon-coated, or suffer damage from heat and heavy use. A failing exhaust valve can lead to loss of compression, poor engine performance, overheating, or difficult starting. Replacing the valve with the correct OEM part restores proper exhaust flow and reliable engine operation.
Manufactured to STIHL factory specifications, this genuine OEM exhaust valve ensures accurate fitment, durability, and long-term performance.
Product Details
Part Number: 4282 025 1901
Brand: STIHL
Part Type: Exhaust Valve
Assembly Location: Engine
Condition: New Genuine OEM Part
Function
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Controls exhaust gas release from the combustion chamber
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Supports efficient engine breathing and power output
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Replaces worn, carbon-damaged, or faulty exhaust valves
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Helps restore compression and smooth engine operation
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Ensures reliable backpack blower performance
⚠️ A damaged exhaust valve may cause power loss, overheating, or engine failure.
Compatibility
This genuine OEM exhaust valve fits STIHL backpack blowers including:
BR 500 (Engine Assembly)
BR 550 (Engine Assembly)
BR 600 (Engine Assembly)
⚠️ Always verify fitment by OEM part number and illustrated parts diagram before ordering.
How It’s Used
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Installed within the engine cylinder head exhaust system
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Opens and closes to allow exhaust gases to exit properly
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Commonly replaced during engine rebuilds or valve servicing
Suggested Maintenance
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Use clean, properly mixed fuel to reduce carbon buildup
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Inspect valves during major engine service intervals
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Keep cooling systems clean to prevent overheating
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Replace worn valves promptly to avoid compression loss
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Always use genuine STIHL OEM engine components for best reliability
