If your diesel Case IH is starting to sound more like a freight train than a tractor, it’s time for a new muffler. That loud exhaust note isn’t just annoying your neighbors – it’s telling you that your current muffler is rusted through or has lost its baffles after years of hard work. This vertical replacement muffler brings back the civilized sound levels your 485, 585, or 685 had when it was new.
What You’re Getting
- Vertical oval-body design that matches your original equipment layout perfectly
- 46-inch overall length provides the proper dimensions for these diesel models
- 2-3/8 inch inlet and 2-inch outlet match your exhaust pipe connections exactly
- Heavy-gauge construction built to handle the heat and vibration of diesel operation
- Direct replacement – no modifications or adapters needed for proper installation
Built for Real Farm Work
This muffler is specifically designed for the 1982 and newer diesel versions of these popular mid-size Case IH tractors. Your 485, 585, or 685 probably handles everything from hay operations and loader work to cultivation and transport duties around the farm. These versatile workhorses need a muffler that can keep up with long hours and demanding conditions while keeping noise levels reasonable.
Made to Last
Diesel engines run hot and create corrosive exhaust conditions that eat through cheap mufflers in a hurry. This replacement is built with the heavy-duty materials needed to handle diesel exhaust temperatures and the constant vibration these tractors produce during field work. The oval body design provides good sound dampening while maintaining proper exhaust flow for your diesel engine.
Installation Notes
This is a direct bolt-on replacement that uses your existing exhaust pipe and mounting hardware. Before installing, soak the old exhaust clamps with penetrating oil – they tend to seize up after years of heat cycles. Check your exhaust pipe condition while you’re at it, as a new muffler on a rotted pipe won’t last long.
