AL117925 - Muffler fits John Deere Tractor 6000, 6600, 6800, 6900 This high-quality aftermarket muffler, model AL117925, is made to fit John Deere Tractors 6000, 6600, 6800, and 6900. It is a durable and reliable replacement part that will ensure your tractor runs smoothly. The muffler comes with a 1-year **and is compatible with John Deere brand equipment. It is perfect for those in the business and industrial sector who are looking for a quality and compatible replacement muffler.