BELT IS NUMBER 23 IN DIAGRAM OF COMBINE LISTED IN THE PICTURES. Belts > Combine Belts. John Deere COMBINE: 4400. John Deere COMBINE: 4420. John Deere COMBINE: 6600. 1 3/4 X 105.5 REC (Raw Edge Cogged) Aramid Cord. REC (Raw Edge Cogged). The item “John Deere 4400,4420, AND 6600 COMBINE PROPULSION BELT” is in sale since Wednesday, October 30, 2019. This item is in the category “Business & Industrial\Heavy Equipment, Parts & Attachments\Heavy Equipment Parts & Accessories\Belts”. The seller is “greenestractorcompanyllcparts” and is located in Sneedville, Tennessee. This item can be shipped to United States.