Ferris 5105196FS – OEM Ferris, Part Number: 5105196FS OEM Ferris Muffler Part # 5105196FS. Ferris 5105196FS MUFFLER Stand-On Mower Zero Turn OEM Genuine Original Part. Ferris Part Number: 5105196FS Replaces Previous MPN: 5105058, 5105196 Compatible with the following Models: Ferris SRSZ1 48 inch Ferris SRSZ1 36 inch. We are proud to be a factory authorized retailer. We use several different carriers and choose the most economical for the item and destination based on the estimated transit time displayed. FixMyToys – A Division of Ball Equipment.