Description
When your International Harvester starts rumbling like a freight train and you’re getting dirty looks from the neighbors, it’s time for a new muffler. A blown-out exhaust not only disturbs the peace but can also affect how your DT407 diesel engine runs. This vertical muffler brings back the civilized sound levels and proper exhaust flow your tractor had when it rolled off the lot.
What You’re Getting
- Exact-fit vertical design that mounts just like the original with no modifications needed
- Oval body construction that’s more durable than round mufflers and fits tighter spaces
- Proper inlet and outlet sizing ensures optimal exhaust flow for your DT407 engine
- Heavy-duty construction built to handle the heat and vibration of diesel operation
- Full 38-inch length provides excellent sound dampening without restricting flow
Built for Real Farm Work
This muffler is engineered specifically for International Harvester’s workhorse tractors from the 1970s and 80s. Whether you’re running a 1026 utility tractor for loader work and hay operations, operating a 1256 for row crop farming, or putting a 1456 through heavy field work, this muffler handles the constant heat and vibration these machines dish out during long days in the field.
Made to Last
Farm mufflers take a beating from temperature swings, moisture, and road salt. This one’s built with the same heavy-gauge steel and internal baffling that made these International Harvester tractors legendary for their longevity. The oval body design is actually stronger than round mufflers and less likely to crack from vibration.
Installation Notes
This muffler bolts up exactly like the original with the same mounting points and pipe connections. Before installation, soak the old exhaust clamps with penetrating oil—they’ve probably been baking on there for decades. Check your exhaust manifold and pipes for cracks while you’re at it, since a new muffler won’t help if hot gases are leaking upstream.
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