When your old B-414 starts running louder than the neighbor’s dog or you’re breathing more fumes than you should be, it’s time for a new muffler. A cracked or rusted-out exhaust doesn’t just make noise—it can let dangerous fumes into the cab and rob your engine of proper backpressure. This vertical round muffler brings your classic International Harvester back to running quiet and clean.
What You’re Getting
- Heavy-duty round steel construction that handles the heat and vibration of field work
- Vertical mounting design that fits the original exhaust configuration perfectly
- Proper internal baffling to reduce noise without restricting exhaust flow
- 2-inch inlet and outlet connections for straightforward installation
- 20-inch shell with overall 41-inch length matches factory specifications
Built for Real Farm Work
These classic International Harvester B-414 tractors from the late ’50s and early ’60s were built as reliable workhorses that needed simple, dependable power. Whether your B-414 is still earning its keep with loader work, mowing duties around the farm, or handling cultivation tasks, this muffler maintains the same mounting and connection points as your original equipment.
Made to Last
Farm mufflers take a beating from temperature swings, moisture, and constant vibration. This replacement is built with agricultural applications in mind, using materials that resist corrosion and handle the thermal cycling that comes with daily use. The welded construction and proper internal design ensure it’ll keep your exhaust system working properly for years to come.
Installation Notes
This is a direct replacement that mounts vertically using the same brackets and connections as your original muffler. Take a look at the condition of your exhaust pipe and clamps while you’ve got things apart—now’s a good time to replace anything that looks questionable. A little high-temp anti-seize on the pipe connections makes future maintenance easier.







