K&N oil filter Honda: 1983 CB1000C 1000 cc; 1983 CB1100F 1100 cc; 81-83 CB1100R 1100 cc; 75-79 CB400F 400 cc; 1971 CB500 500 cc; 72-77 CB500 F Four 500 cc; 72-74 CB500K 500 cc; 75-76 CB550 550 cc; 1975 CB550F Super Sport 550 cc; 74-80 CB550K 550 cc; 82-83 CB550SC Nighthawk