1987 Blaw-knox PF500; Well Maintained With Service Records. Hour Meter Reads: 2506; Overall Exterior Condition: Excellent; Interior: Good To Excellent Tracks Condition: Good; Unit Runs & Operates As It Should?: Yes; John Deere 300-oem Engine, 105 Hp, Diesel, Sn Td6414d139978. New Belts. Rebuilt Burner System A Year Ago.