Key Features

• Genuine OEM exhaust muffler for select Briggs & Stratton petrol engines, part number 494585.
• Lo-Tone design reduces noise compared with open exhausts while preserving efficient exhaust flow.
• Durable construction using heat‑resistant materials to withstand thermal cycling and vibration.
• Includes mounting hardware & gasket with deflector in most complete kits for easier installation.
• Helps maintain proper back‑pressure for smooth operation and long‑term engine reliability.

Product Details

• Product Type: Engine Exhaust Muffler / Silencer
• Part Reference: 494585
• Includes: Muffler body, bolts, deflectors and gasket (in most complete kits)
• Compatibility: Briggs & Stratton petrol engines in the ~4–5 hp class, depending on engine code and exhaust port pattern
• Application: Reduces engine exhaust noise and directs exhaust gases safely away from the machine

Compatibility

• Specifically suitable for small Briggs & Stratton petrol engines in the 4 hp (10 CID) range and around 5 hp horizontal and vertical shaft designs.
• Engine platforms formerly using 297506, 391060, 393593, 393615 and 493936 are now unified under 494585.
• Common equipment: walk‑behind mowers, garden tractors/ride‑ons, petrol pressure washers, generators, tillers, and other outdoor power equipment with compatible exhaust patterns.
• Fitment tip: Muffler compatibility depends on the engine’s exact model number, exhaust port thread, and orientation—verify by comparing to your engine’s tag or your existing muffler before ordering.