Description
When your D15 starts sounding like a locomotive instead of the steady workhorse it used to be, it’s time for a new muffler. A blown-out muffler isn’t just annoying—it affects engine performance and makes those long days on the tractor seat a lot less comfortable. This replacement muffler brings back the quiet operation your D15 had when it rolled off the production line.
What You’re Getting
- Oval body design that matches your tractor’s original equipment specifications
- 27-inch overall length provides proper exhaust flow and sound dampening
- Direct replacement that uses your existing mounting hardware and connections
- Heavy-gauge steel construction built to handle farm work vibration and weather
- Precise inlet and outlet sizing for proper fit without modifications
Built for Real Farm Work
This muffler is specifically designed for Allis Chalmers D15 tractors with serial number 9001 and up. The D15 was a popular mid-size utility tractor that handled everything from hayfield work to loader duty around the farmyard. Whether you’re mowing pastures, running a bush hog, or doing general farm maintenance, this replacement muffler ensures your tractor runs at proper sound levels.
Made to Last
Farm tractors take a beating, and exhaust systems are no exception. This muffler’s oval design provides good internal volume for sound reduction while the steel construction resists the constant heat cycles and corrosion that come with agricultural use. The internal baffling is engineered to provide effective noise reduction while maintaining the proper back pressure your engine needs.
Installation Notes
This is a direct replacement that bolts right in place of your original muffler. Before installation, check the condition of your exhaust pipe and mounting clamps—after years of farm work, these often need attention too. A little penetrating oil on the old clamps makes removal much easier, and new gaskets ensure a leak-free seal.






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