Baffled Breather Grommets

Designed to virtually eliminate "oil breather blow by", a common problem encountered on non-baffled valve covers with push-on breathers. No tools required.

PART# 5425

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These breathers are for use on valve covers & rocker arms w/o stud girdles.


Keep your oil where it belongs, in your engine, with Mr. Gaskets baffled breather grommets. These grommets will stop those pesky leaks from your breathers by only allowing the vapor to exit through your breathers.


  • Replaces Stock Grommets
  • Eliminate Blow-by From Non Baffled Valve Covers
  • 2 Per Set


BrandMr. Gasket
Emission Code3
Product TypeValve Cover Accessories
WarrantyLimited 90 Day Warranty
Part Number5425


This part is legal for use on Uncontrolled (Non-Emissions Controlled) Vehicles or Racing Vehicles.

The following vehicles are considered Uncontrolled (Non-Emissions Controlled) Vehicles:

  • 1965 and older U.S. manufactured California Certified vehicles
  • 1967 and older U.S. manufactured Federally Certified vehicles
  • 1967 and older Foreign manufactured vehicle

Racing Vehicles are vehicles that are used exclusively for racing or other forms of competition that are not registered and that may never be used on the street.

Tech Resources

These breathers are for use on valve covers & rocker arms w/o stud girdles.

Warranty Information

Limited 90 Day Warranty: See Details
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      *Free Shipping & Handling only offered to the contiguous US on orders over $100.

      Some parts are not legal for use in California or other states with similar regulations.