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Holley

Cover-Diaphragm Housing

Part # 20-28 Be the first to write a review

Cover-Diaphragm Housing 2 x 4 bbl. Application

Cover-Diaphragm Housing

Not Available

5

Emissions

This part is legal for sale or use on Emissions Controlled Vehicles, Uncontrolled (Non-Emissions Controlled) Vehicles, and Racing Use Only Vehicles because it does not affect vehicle emissions and is not covered by emissions regulations.

See Emissions Details

Also Bought

Cover-Diaphragm Housing To Balanace Secondary Operations On a 2 x 4 bbl. Application

Features:

  • Cover-Diaphragm Housing
  • Allows vacuum hookup between carburetors for more even and balanced secondary operation.

About Holley

Holley Performance Brands is the undisputed leader in carburetors, fuel pumps, fuel injection, intake manifolds, fuel injection, and fuel systems.

Brand Holley
CategoryAir and Fuel Delivery
ColorZinc
Emission Code5
MaterialZinc
Part TypeCarburetor Accelerator Pump Diaphragm
Product TypeVacuum Secondary Cover
Sub CategoryCarburetion
WarrantyManufacturer's Limited 90 Day Warranty
UPC090127035962
Part Number20-28
5

This part is legal for sale or use on Emissions Controlled Vehicles, Uncontrolled (Non-Emissions Controlled) Vehicles, and Racing Use Only Vehicles because it does not affect vehicle emissions and is not covered by emissions regulations.
Instructions - 199r8291.pdf
Manufacturer's Limited 90 Day Warranty: See Details
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    Some parts are not legal for use in California or other states with similar regulations.