1968 – 1969 Chevrolet NOS Holley Carburetor Secondary Diaphragm GM # 3933873

This new old stock Holley carburetor secondary diaphragm was manufactured by General Motors for use on the following models:

Chevrolet Truck 1968 All with 366 or 427 engine,

Chevrolet Truck 1969 Series 50 trucks with 366 engine except air injection reactor system,

Chevrolet Truck 1969 Series 60 trucks with 366 engine except A.I.R. or tilt cab,

Chevrolet Truck 1969 Series 60 tilt cab trucks with 366 engine,

Chevrolet Truck 1969 Series 60 trucks with 427 engine except A.I.R.

All listed applications are with Holley 4-bbl carburetor.

NOTE: Images show the condition and what is included in the sale.

*This item may be re-packaged to protect it from shelf wear.