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Description
4244 792 2904 STIHL AV Mount – Genuine OEM Anti-Vibration Buffer
The STIHL AV Mount (4244 792 2904) is a genuine OEM anti-vibration buffer designed for select STIHL backpack blowers and mistblowers, including the BR 350, BR 430, BR 450, BR 450 C-EF, SR 430, and SR 450 models. This AV mount is a critical component of the anti-vibration system, helping isolate engine vibration from the fuel tank and frame assembly.
Anti-vibration mounts play an essential role in reducing operator fatigue, improving comfort, and protecting structural components from vibration-related wear. Over time, AV mounts can crack, harden, compress, or fail due to heat exposure, continuous vibration, heavy commercial use, or aging rubber material. A worn mount may cause increased vibration, unstable tank mounting, or reduced operator comfort during operation.
Replacing the AV mount with the correct genuine STIHL OEM part restores factory vibration dampening, proper tank support, and reliable long-term performance without replacing the complete fuel tank assembly.
Manufactured to STIHL factory specifications, this OEM AV mount ensures precise fitment, durable rubber composition, and long-term vibration isolation under demanding working conditions.
Product Details
OEM Part Number: 4244 792 2904
Brand: STIHL (Genuine OEM)
Part Type: AV Mount / Anti-Vibration Buffer
Application: Fuel tank and anti-vibration support system
Condition: New Genuine OEM Part
Function
This STIHL AV mount is designed to:
Reduce vibration transfer between engine and fuel tank assembly
Improve operator comfort during extended use
Support stable mounting of tank and frame components
Replace cracked, hardened, or worn vibration buffers
Restore factory anti-vibration performance
⚠️ A worn AV mount may increase vibration and cause mounting instability.
Verify Fitment (Recommended)
Before ordering, confirm:
OEM part number 4244 792 2904
Your unit model matches those listed below
AV system configuration matches your unit version
Fitment is verified using your STIHL illustrated parts diagram
⚠️ Anti-vibration components are model-specific — always verify by OEM part number.
Compatibility
This genuine OEM AV mount fits select STIHL backpack blowers and mistblowers, including:
Backpack Blowers
BR 350 (Fuel tank / AV system)
BR 430 (Fuel tank / AV system)
BR 450 (Fuel tank / AV system)
BR 450 C-EF (Fuel tank / AV system)
Mistblowers
SR 430 (Fuel tank / AV system)
SR 450 (Fuel tank / AV system)
(Exact fitment depends on production version — always verify using OEM parts diagram.)
Installation Notes
Disconnect spark plug before servicing
Remove fuel tank mounting components as required
Inspect AV mounts for cracking or compression
Replace worn mount with new OEM buffer
Reassemble tank and frame securely
Test unit for vibration reduction and stability
⚠️ AV system service should be performed by a qualified technician.
Maintenance Tips
Inspect vibration mounts regularly for wear
Replace hardened or cracked rubber buffers promptly
Avoid prolonged operation with damaged AV mounts
Maintain proper mounting hardware torque
Always use genuine STIHL OEM anti-vibration components


