Does the Mule Exhaust Muffler fit part number 18091-1104?

Yes, the Kawasaki Mule 3000/3010/3020/4000/4010 Exhaust Muffler is a direct replacement for part number 18091-1104. It also supersedes part number 18090-1912 and replaces 11060-2079, ensuring it matches the specific engineering requirements of those Kawasaki Mule models.

The Mule Exhaust Muffler replaces the specific 18091-1104 part number rather than offering a universal fit, which means it should align with the factory flange bolt pattern and inlet diameter without requiring you to modify the header pipe. We selected this specific muffler for our comparison because it includes 2 gaskets to ensure a proper seal against exhaust leaks. For a muffler buyer, confirming the exact part number match is critical because an incorrect inlet diameter or flange pattern can prevent the unit from seating against the manifold, leading to dangerous exhaust leaks or significant backpressure issues that sap low-end torque. This unit is designed for the 3000, 3010, 3020, 4000, and 4010 series, providing a direct fit for these specific utility vehicles.

What to Check Before Buying the Mule Exhaust Muffler

Before ordering this exhaust component, verify these specific details to ensure it fits your vehicle’s configuration.

• Confirm your current muffler’s stamped part number matches 18091-1104 or 18090-1912.
• Measure the distance between the flange bolt holes to ensure they align with the factory mounting points.
• Check the clearance near the rear cargo rack to ensure the muffler body does not interfere with your utility equipment.
• Verify that the exhaust inlet diameter on your header pipe matches the standard Kawasaki Mule 3000 series specifications.
• Consult a qualified installer to confirm that the mounting points meet local safety and noise regulations for your region.

Comparing the Mule Exhaust Muffler to Other Options

The Mule Exhaust Muffler serves as a direct replacement for the original equipment, which is the primary goal for most utility vehicle owners. If you require a specific performance change, such as a significant increase in engine volume or a custom-tuned resonance, you might look at aftermarket performance systems. However, for those who need to restore factory noise levels or replace a damaged component with a reliable, standard-fit part, this muffler is the appropriate choice. Buyers who prioritize maintaining the original engineering and backpressure of the Kawasaki Mule 3000 series should prioritize this direct-fit replacement over universal options that may require welding or custom hangers.

If you are upgrading a different vehicle, you can view our comparison of stainless steel rav4 mufflers.

If you need a direct replacement for a worn or damaged factory unit on a Kawasaki Mule 3000, 3010, 3020, 4000, or 4010, this muffler is the correct choice for your repair.