This genuine Stihl exhaust (muffler/silencer) is a direct replacement for the MS 460 and 046 chainsaws. Built from durable pressed steel with a heat‐resistant finish, it manages hot exhaust gases safely and helps keep engine noise to a practical level. Correct back‐pressure is important for smooth running, throttle response, and overall reliability; this OEM unit is made to the original specification for a proper fit and seal. Supplied to replace a worn, damaged, or corroded muffler, it restores safe exhaust routing away from the operator and helps maintain consistent performance in demanding cutting work. OEM Part No. 1128 140 0603 ensures compatibility with the specified models and supports straightforward installation using the existing mounting hardware where serviceable.

Key Features:
– Genuine Stihl OEM muffler for assured fit and function (Part No. 1128 140 0603)
– Robust steel construction with heat‐resistant coating for long service life
– Helps control engine noise and directs exhaust gases away from the user
– Maintains correct back‐pressure to support reliable running and power delivery
– Direct replacement part designed for the original mounting points
– Suitable for heavy, frequent use in forestry, landscaping, and site work
– Clean mating surfaces and straightforward refit with standard hand tools
– Compatible with original fasteners; replace gasket and spark arrestor screen if worn
– Supports safer, more comfortable operation during extended cutting sessions

Typical Applications:
Ideal for restoring a chainsaw that has become excessively noisy, lost power, or shows visible exhaust damage or corrosion. Commonly used during engine overhauls, after impact damage, or when routine maintenance finds a leaking or cracked muffler. Suitable for professional forestry work, arborist tasks, timber processing, firewood cutting, and general site clearance.

Also known as:
Silencer, exhaust box, exhaust can, expansion chamber, spark arrester housing, outlet housing, exhaust unit.

Fits Models:
046, MS 460, MS460

Alternate Part Numbers:
1128-140-0603, 11281400603

Product Specifications