Rochester Accelerator Pump Cup 21/32" 

As used in SOME 2G; 2GC; 2GV; M4MC; M4ME, 4MV Quadrajet, 4 Jet

Check your carb accelerator pump before ordering.

This cup is 21/32” [17mm] O.D. & 0.365 -.370” I.D; 0.185” height.

As used in SOME:

2G; 2GC; 2GV; M4MC; M4ME

Buick 1975-80

Checker 1969-78

Chevrolet 1966-80

Chevrolet Truck 1969-87

Chrysler 1985-88

Dodge Truck 1984-89

GMC 1971-88

Holden HT; HG; HQ; HJ; V8 308 ci. 1969-75 with Roch 4MV carb

Holden Torana SLR5000; L34 V8 308 ci. 1974-76 with Roch 4MV carb 

Oldsmobile 1977-78

Pontiac 1977-80

Note: There are many accelerator pump cup choices for any 1 carburetor. You need to match the carburetor number, or the measurements.