Bill Smith
Founder, 1929-2014
Speedy Bill
Since 1952
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Push-In Style Oil Breather Caps

Hole Diameter:
Push-In Style Oil Breather Caps

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Q & A

What's in the Box

Each chrome push-in style oil breather cap fits factory and after market valve covers with a 1-1/4" diameter hole, with rubber grommet.


Item Details

with rubber grommet

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Push-In Oil Filler Tube, Chrome
(Part #91017098)

Trick looking chrome oil filler extension tubes. Attach to any valve cover filler holes. Push-in style.

Extends up to 4-1/2" from the valve cover. There is no baffle inside the tube. Outside diameter is 1-3/4".

Top is notched to accept a twist on cap or breather. There is no breather cap included. Reuse your existing breather or cap. A push-in style grommet could be used. Inside diameter at top is 1-3/4".

Push-On Early Style Oil Breather Cap
(Part #5502060)
                        Our push-on breather cap fits 1-3/8" O.D. oil fill tubes (such as our tube 910-17441).
Twist-On Oil Filler Cap
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                        This twist-on oil breather cap has no breather.
Billet Style Aluminum Breathers Without PCV Valve
(Part #91011033)
                        Polished aluminum breathers come with rubber grommets for 1.250" hole.
Billet Style Aluminum Breather With PCV Valve
(Part #91011034)
                        Polished aluminum breathers come with rubber grommets for 1.250" hole.
Finned Valve Cover Breathers
(Part #91017116)
                        Nostalgic finned valve cover breather. Use with grommet 550-6375 to fit a 1-1/4" I.D. hole (typical aftermarket valve cover).
Finned Valve Cover Breathers with PCV
(Part #91017118)

Nostalgic finned valve cover breather with built in PCV insert. Use with grommet 550-6375 to fit inside a 1-1/4" I.D. hole (typical aftermarket valve cover).

Mini Engine Breather
(Part #91017081)
                        This polished aluminum breather measures 2-3/4" long, 1-3/4" wide and 1-1/2" tall. Fits where others won't.  Breather features a layer type baffle where one plate is over the other.  It allows the air to breath, but keeps the oil baffled below. This is a one piece unit (the cap does not remove from the base).
OTB Gear 6801 Finned Valve Cover Breather, 3 Inch Diameter, 1 Inch Neck
(Part #9106801)

This finned valve cover breather is a classy addition to your engine. Constructed from aircraft grade A356 aluminum, it is polished to meet show quality standards.

  • 3" in diameter with a 1" neck
  • Fits into grommet with 1" hole
  • High quality polished aluminum construction
  • Made in USA