Carburetor Secondary Throttle Diaphragm #12404 With 2.054in Rod Length

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Edelbrock Carburetor Vacuum Secondary Diaphragm
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The Edelbrock #12404 Vacuum Secondary Diaphragm is a replacement service part for popular high performance Quick Fuel, Holley and Demon carburetors.


Availability Available
Application Application Specific
UPC 00085347124046
Mounting Hole Quantity 4
Grade Type Performance
Mounting Hole Diameter 0.200 in
Quantity Sold Individually
Availability Note Available to Order
Warranty 12 Months
Emissions Code
Hazardous Materials Warning WARNING: This product can expose you to Chromium, which is known to the State of California to cause cancer or birth defects or other reproductive harm. For more information, visit
Installation Notes
  • A fuel filter MUST be installed between the fuel pump and the carburetor; Proper installation is the responsibility of the installer. Improper installation will void your warranty and may result in poor performance and engine or vehicle damage
Material Rubber