1140 140 0657 Exhaust Muffler Replacement for STIHL Chainsaws
Replace a worn or damaged chainsaw muffler with this aftermarket replacement part designed for compatible STIHL MS311 and MS391 chainsaw applications.
Made from durable metal materials, this exhaust muffler helps reduce operating noise and withstand high-temperature conditions during regular chainsaw use.
Please verify your existing part number, mounting position, and product images before ordering.
Product Features：
✓ Replacement exhaust muffler for compatible chainsaw models ✓ Designed to replace worn or damaged muffler assemblies ✓ Helps reduce exhaust noise during chainsaw operation ✓ Durable metal construction for heat and vibration resistance ✓ Easy installation to help restore normal chainsaw performance ✓ Suitable for selected STIHL MS311 and MS391 applications
Product Specifications：
Item
Details
Product Type
Chainsaw Exhaust Muffler
Replacement Number
1140 140 0657
Alternative Numbers
11401400657 / 1140-140-0657
Application
Chainsaw Parts
Compatible Brand
STIHL
Compatible Models
MS311 / MS391
Material
High-strength Metal
Function
Exhaust Noise Reduction
Replacement Type
Aftermarket Replacement
Package Includes：1 × Exhaust Muffler
Compatible Models：
Designed for selected:
STIHL Chainsaws: MS311 / MS391
Please verify your original part number and muffler design before purchase.
Compatibility Notice：
⚠️ Please compare your existing muffler shape, mounting holes, exhaust position, and part number before ordering.
This product is an aftermarket replacement part and is not manufactured by or affiliated with STIHL or the original equipment manufacturer.
