73BW25B Headlight Dimmer Switch Fits 1967-1969, 1971-1974 GMC K25/K2500 Pickup

1969 GMC K25/K2500 Pickup 5.0L V8. 1968 GMC K25/K2500 Pickup 6.5L V8. 1968 GMC K25/K2500 Pickup 5.3L V8. 1968 GMC K25/K2500 Pickup 5.0L V6. 1967, 1974 GMC K25/K2500 Pickup 4.1L 6 Cyl. 1967, 1974 GMC K25/K2500 Pickup 4.8L 6 Cyl.