What size is the breather hole designed for?

This Spectre breather cap is designed for valve covers with 1-1/4 inch breather holes. It has a 1 inch outside diameter neck for easy installation. If your valve cover has a different size hole, this breather will not fit.

Does this breather cap come with a grommet?

No, this breather cap does not include a grommet. However, Spectre recommends using their grommet kit part number 5339 for a proper seal. You can purchase the grommet kit separately.

Is the foam insert replaceable?

Yes, the internal foam insert is replaceable. This allows you to maintain proper filtration and extend the life of the breather cap. Replacement foam inserts are available separately.

Spectre 4277 Oil Breather Cap (Push-In)

Name: Spectre Oil Breather Cap (Push-In)
Brand: Spectre
SKU: spectre-spectre-oil-breather-cap-push-in-t14-186967
Price: 17.99 USD
Availability: InStock

Spectre Oil Breather Cap (Push-In)

$17.99

In Stock

Push-in oil breather cap with internal baffle. Fits 1-1/4 inch breather holes.

Key Features

Internal baffle — prevents oil splash
Designed for 1-1/4 inch breather holes — direct fit
1 inch outside diameter neck — fits common valve covers
Replaceable internal foam insert — maintains filtration
Triple chrome-plated steel construction — well-built

⚠️ CA WARNING: This product can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. Learn more

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Product Details

Spectre's Valve Cover Breather Push-in features an internal baffle to prevent oil splash and provide superior ventilation. This valve cover was designed for 1-1/4 inch breather holes, with a 1 inch outside diameter neck. Ideal for use in conjunction with the grommet kit part number 5339, this breather includes a replaceable internal foam insert. Manufactured using high quality materials, this oil filler breather cap's triple chrome-plated steel construction ensuring it performs as well as it looks. Note: Legal in California only for racing vehicles which may never be used, registered, or licensed for use upon a highway. See spectreperformance.com for CARB status on each part for a specific vehicle.Spectre's Valve Cover Breather Push-in features an internal baffle to prevent oil splash and provide superior ventilation. This valve cover was designed for 1-1/4 inch breather holes, with a 1 inch outside diameter neck. Ideal for use in conjunction with the grommet kit part number 5339, this breather includes a replaceable internal foam insert. Manufactured using high quality materials, this oil filler breather cap's triple chrome-plated steel construction ensuring it performs as well as it looks.