Edelbrock Pro-Flo Black Valve Cover Breather, 1-1/4" Hole — Internal Oil-Vapor Filter, Textured Finish

This compact Pro-Flo breather from Edelbrock is designed to blend with the company’s black valve covers while controlling crankcase vapor. Finished in a black mini texture powder coat and sized for a 1 1/4" valve cover hole, the breather installs with a supplied grommet and traps oil mist internally so you keep a neater engine bay. It’s a simple, bolt-on styling and functional upgrade for street and show engines.

How does this breather improve engine bay appearance?

The EDL4403 replaces plain, open holes with a purpose-built cap finished to match Edelbrock’s black valve covers. The textured powder coat hides fingerprints and blends with other black components for a cohesive look. The embossed Edelbrock script on top adds a recognizable, factory-style accent without being flashy.

• Black mini texture powder coat coordinates with Edelbrock black valve covers
• Compact 1 3/4" overall height keeps a low profile under hoods
• Raised Edelbrock script provides a refined visual detail

What are the practical benefits during daily use?

Beyond aesthetics, the Pro-Flo breather contains an internal filter media that helps trap oil vapor and reduce oily residue on surrounding components. The push-in tube simplifies installation and the included grommet ensures a secure fit for the 1 1/4" valve cover opening. For engines using a PCV or catch-can system, this breather serves as a tidy vent point or backup vent.

• Internal filter captures oil mist for a cleaner engine compartment
• Push-in tube and included grommet speed installation
• Fits standard 1 1/4" valve cover hole size for broad compatibility

Will this fit my engine and how do I install it?

The EDL4403 is sized for valve cover holes that measure 1 1/4", a common opening on many aftermarket and OEM covers. Installation requires pushing the breather tube into the supplied grommet and seating the grommet into the valve cover hole; no special tools are typically needed. If you need a vent outlet, the optional 90° nipple versions are available for routing hose away from heat sources.

• Designed for 1 1/4" valve cover openings — verify your cover before purchase
• Tool-free push-in assembly with included grommet for quick fitment
• Optional 90° nipple available on other Edelbrock breathers for hose routing

Who is this for: The Edelbrock EDL4403 Pro-Flo Black Round Breather is ideal for car owners and builders who want a discreet, matched vent for Edelbrock black valve covers or similar finishes. It suits street rods, daily drivers, and show cars that need a low-profile cap that reduces oil spray and improves engine bay presentation. Choose this breather if you want an OEM-style look with functional vapor trapping and straightforward installation.