Part Number: 65-24434-1 (Duct ay ex upper apu)Part Number: 65-24434-10 (Duct ay ex upper apu)Part Number: 65-24434-12 (Duct ay ex upper apu)Part Number: 65-24434-3 (Duct ay ex upper apu)Part Number: 65-24434-5 (Duct ay ex upper apu)Part Number: 65-24434-8 (Duct ay ex upper apu)