This is our oval, base plate mounted muffler for the budget conscious John Deere tractor enthusiast. The oval design of this John Deere muffler matches the original look found on the late John Deeere two-cylinder tractors. The muffler is designed for base mounting.  It is held in place by the 4 studs extending through the hood of the John Deere 520 and 530 series tractors. This John Deere muffler allows smooth exhaust flow, yet controls sound at reasonable levels. This muffler is 21 7/8 inches in length.  Replaces John Deere Part AR20450 that was featured on late model John Deere two-cylinder tractors.  This muffler will also fit John Deere B, 50 tractors.