1137 140 0607 – STIHL Muffler (Genuine OEM Part) 123 MPH maximum air velocity and long service life in

and long service life in residential and commercial mowing conditions

and high operating loads

The 486322 pump drive belt is manufactured to original factory standards for fitment

991135 – Pro-Turn 152 / 152 EFI

and PM-series commercial mowers

1137 140 0607 – STIHL Muffler (Genuine OEM Part) 123 MPH maximum air velocity and long service life in1137 140 0607 STIHL Muffler (Genuine OEM Part) The STIHL 1137 140 0607 is a genuine OEM muffler designed to reduce exhaust noise and direct exhaust gases safely away from the engine and operator on compatible STIHL chainsaws. This muffler plays a critical role in maintaining proper engine performance, noise control, and emissions compliance. Manufactured to STIHLs original equipment specifications, this muffler is constructed from durable, heat