Interchange Part Number:AR2018 437821 20071032 86551430 211053. Other Part Number:AR2018, 437821, 20071032, 86551430, 211053. OEM Part Number: 8N8005. Ford New Holland Tractor Models: 2N, 8N, 9N. This Aluminum Radiator is designed to provide maximum cooling efficiency to prevent premature engine failure.