This is a new old stock auto part. NOS gm in old original gm box. Sale is for a one fits left or right hand side... This is a new gm item # 1654747 same as 8728739
This new old stock body lock pillar pressure relief valve
listed as fitting
Buick 1969-1972 3327-69-3569-4439-4469 Instrument Panel Vent less A/C,
Buick 1972 50-60-80-9000,
Buick 1973-1975 A, B, C, E, X,
Buick 1976 A, B, C, E,
Buick 1976-1979 X27 with Formal Window AB8,
Buick 1976-1979 X69,
Buick 1977 A
Cadillac 1976 C, D, E,
Cadillac 1977-1978 E
Chevrolet 1969 – 1975 Passenger, Chevelle, Nova with Formal style windows,
Chevrolet 1972-1974 Pass,
Chevrolet 1975 Vega 2 door Notchback Coupe, Vega 2 door Hatchback Coupe (HV11-77),
Chevrolet 1976 A, B,
Chevrolet 1976-1977 H11-77,
Chevrolet 1976-1980 H27,
Chevrolet 1976-1979 X27 with Formal Window AB8,
Chevrolet 1976-1979 X69
Chevrolet 1977 A,
Chevrolet 1978 HM77
GMC 1976-1977 Sprint
Oldsmobile 1969 F85 6 cylinder Sport Coupe, F85 8 cylinder Sport Coupe, Cutlass 6 cylinder Holiday Sedan, Cutlass 6 cylinder Town Sedan, Cutlass 6 cylinder Sport Coupe, Cutlass 8 cylinder Holiday Sedan, Cutlass 8 cylinder Town Sedan, Cutlass 8 cylinder Sport Coupe, Cutlass Supreme Holiday Sedan, Cutlass Supreme Town Sedan, 442 High Performance V-8 Sport Coupe (3177, 3277, 3539-69-77, 3639-69-77, 4239-69, 4477) with inst. side vent,
Oldsmobile 1972 -1975 All,
Oldsmobile 1976-1977 A,
Oldsmobile 1976 B, C,
Oldsmobile 1976-1978 E,
Oldsmobile 1976-1979 X27 with Formal Window AB8,
Oldsmobile 1976-1979 X69
Pontiac 1972 All B
Pontiac 1973 – 1974 ABGX
Replaced 8728739 on 6/75