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Spectre 4273

Oil Breather Cap
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4.5 out of 5 stars 2 Customer Reviews
In Stock & Ready to Ship!


Spectre’s Oil Filler Breather Cap Twist-In features an internal baffle to prevent oil splash and provides a secure tight seal with superior ventilation. This cap can be used with all twist-lock type filler holes, including with oil filler extensions. Manufactured using high quality materials, the oil filler breather cap is triple chrome plated steel ensuring it performs as good 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 for CARB status on each part for a specific vehicle.
  • For all twist-lock type filler holes (can be used with oil filler extensions)
  • OEM twist-lock type
  • Triple chrome plated steel
  • Made from high quality material

Part SPE-4273 Product Specifications

Flange Inside Diameter1.12 in (28 mm)
Height2.25 in (57 mm)
Outside Diameter3 in (76 mm)
Top MaterialChrome
Top StyleMetal
Air Filter ColorWhite
Filter MaterialFoam
Product StyleSpectre Breather Air Filter
Flange Length0.625 in (16 mm)
Weight0.3 lb (0.1 kg)
Product Box Height6.1 in (155 mm)
Product Box Length4.1 in (104 mm)
Product Box Width3.2 in (81 mm)
WARNING: Cancer and reproductive

Product Reviews

February 13, 2017 - Part 4273
Fit my aftermarket cast aluminum valve covers perfectly. Great price, excellent seal and solid construction. Much better than the other products I have tried.

Gene Kallenbach
Bosque Farms, New Mexico
September 17, 2016 - Part 4273
Great part. Harder to find twist in oil breathers than push in. Looks great.

Michael Schwartz
Plantation, Florida
Review part 4273