DOP15-010 John Deere Deck Spindle Drive Belt No. TCU13198. Aftermarket (OEM Quality) replacement Deck Spindle drive belt for John Deere models 737 Mid-mount Z-TRAK with 60" deck, 777 Max-Frame Z-TRAK with 60" deck, 757 Mid-Mount Z-TRAK with 60" Deck, 797 Max-Frame Z-TRAK with 60" Deck. Size: 5/8" x 142" Long. Replaces John Deere Part # TCU13198.