PART NO: A-D4NN9F593A. Injector. 5600, 5700 (1/1975-3/1979) 5600, 5700. PK SIZE: 1. MODELS: Ford / New Holland INDUSTRIAL/CONSTRUCTION: 420 Ford / New Holland TRACTOR: 333 Ford / New Holland TRACTOR: 3600 Ford / New Holland TRACTOR: 4100 Ford / New Holland TRACTOR: 5600 Ford / New Holland TRACTOR: 5700.