fascinatte Muffler Exhaust for Kohler K241 K301 K321 Engines — 105-296 Canister, 16.1" Overall Length

This is a direct-fit replacement muffler/exhaust canister for lawn tractors using Kohler K241, K301 and K321 engines.

When your garden tractor needs a sturdy, correctly sized muffler, the fascinatte 105-296 muffler offers a durable aftermarket option engineered to match the original equipment dimensions. It’s built to replace specific OEM part numbers and fits common Cub Cadet and Kohler small-engine applications. The following details explain what it does, how it fits, and whether it suits your mower.

What exact specifications does this muffler have?

The muffler is a canister-style exhaust component designed for small garden tractors. Key measurements and features make it compatible with specified Kohler engines and Cub Cadet tractors.

• Body length: 11 3/4" for core muffler body fit.
• Overall length: 16 1/8" including inlet/outlet projections.
• Inner diameter (ID): 1 3/8" to match standard exhaust stubs.
• Outer diameter (OD): 3 1/2" for mounting clearance.
• Note: clamp hardware is not included with the muffler.

Which engines and models will this replace?

This replacement muffler is intended for Kohler K241, K301 and K321 engines and common Cub Cadet garden tractors that use those engines. It is listed as an aftermarket equivalent for several OEM part numbers.

• Compatible with Kohler engines: K241, K301, K321.
• Fits Cub Cadet garden tractors that use the above Kohler engines.
• Replaces OEM numbers: Cub Cadet 393840-R91, IH-393840-R91 and Kohler 237550 / 237550-S.

How do I confirm fitment before ordering?

Measure your current muffler and compare to the listed dimensions; check engine model stamped on the valve cover or engine block. Also verify the OEM part number if available to ensure direct compatibility.

• Match engine model (K241, K301, K321) on your lawn tractor.
• Compare overall and body lengths to your existing muffler for clearance.
• Confirm ID of exhaust stub is roughly 1 3/8" for inlet compatibility.
• If unsure, inspect existing muffler for OEM numbers mentioned above.

What should I expect during installation and maintenance?

Installation is straightforward for most users with basic hand tools: remove the old muffler, slide this unit into place, and secure with an appropriate clamp (not provided). Periodic visual inspection for leaks or rust will prolong service life.

• Requires a correct-sized exhaust clamp (not included) for secure mounting.
• Use standard sockets/wrenches to remove and install mounting hardware.
• Inspect connections and gaskets for tightness after initial run.
• Replace if severe corrosion or internal damage develops over time.

Who is this for? This fascinatte 105-296 muffler is for owners of Cub Cadet garden tractors or other equipment powered by Kohler K241, K301 or K321 engines who need an OEM-equivalent exhaust canister. It’s suited for DIY repairers and lawn care professionals who want a dimensionally accurate replacement that matches original part numbers. If you need a muffler sized roughly 11 3/4" body length and 16 1/8" overall, and you can supply your own clamp, this part is a practical aftermarket option.