Genuine Stihl air filter base 1147-140-1202 / 11471401202, compatible with MS500i and MS500i-W chainsaws. Factory OEM component that supports secure air filter mounting, maintains seal integrity, and ensures consistent engine performance under demanding conditions.

✅ Authentic OEM Quality – Genuine Stihl base ensures correct fit, durability, and factory‐spec sealing.
✅ Wide Model Compatibility – Fits MS500i and MS500i-W chainsaws.
✅ Maintains Seal Integrity – Provides perfect base for air filter, preventing unfiltered air ingress.
✅ Durable Material – Made from rugged plastic to resist heat, vibration, and outdoor exposure.
✅ Direct Replacement – Drops in using existing mounting points; no modifications needed.
✅ Enhances Engine Longevity & Performance – Proper filter base helps avoid air leaks which can degrade performance and increase wear.