Description

When your vintage Model M starts sounding like a farm implement instead of a tractor, you know it’s time for a new muffler. These sturdy workhorses from the 1940s and 50s were built to last, but after decades in the field, even the toughest muffler needs replacing. This vertical muffler brings back the proper exhaust note while keeping noise levels where they should be – and your neighbors happy.

What You’re Getting

Compact round body design at 3-1/4″ diameter fits perfectly in tight engine compartments
Vertical orientation keeps exhaust away from the operator and work area
21-inch body length provides effective sound dampening without taking up too much space
Quality welded flange connection ensures a secure, leak-free mount
Direct replacement design – no modifications or adapters needed

Built for Classic Farm Work

This muffler fits John Deere Model M and MT40 tractors – the reliable utility workhorses that handled everything from cultivating to belt work around the farm. These compact tractors were perfect for smaller operations and specialty crops, and many are still earning their keep today in orchards, gardens, and as reliable backup machines.

Made to Last

Just like your Model M was built to work for generations, this muffler uses heavy-gauge steel construction to handle the heat and vibration of daily farm use. The internal baffling reduces noise effectively while maintaining proper exhaust flow for optimal engine performance.

Installation Notes

This is a direct replacement for original part AM625T, so installation uses your existing mounting points and exhaust pipe connections. The welded two-hole flange design matches the factory setup perfectly. Take your time removing the old muffler – penetrating oil on the mounting bolts makes the job much easier on these vintage machines.