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Founder, 1929-2014
Speedy Bill
Since 1952
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Valve Cover Breather Filter - 1 3/8 Inches

SAME DAY SHIPPING! Most orders ship within 24 hours.

Valve Cover Breather Filter - 1 3/8 Inches
Valve Cover Breather Filter - 1 3/8 Inches
Valve Cover Breather Filter - 1 3/8 Inches
Valve Cover Breather Filter - 1 3/8 Inches

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What's in the Box

Valve Cover Breather Filter, 1 3/8"

Clamp-on style valve cover breathers. Washable.

You may also be interested in:

Push-In Valve Cover Breather Kit
(Part #54568810)
                        Push-in rubber system. Two K&N style filters and breather adaptors. Fits steel or aluminum valve cover with 1.22" breather hole. 
Valve Cover Shielded Breather, 1-3/8 Inch
(Part #465621513)
                        Valve cover breathers feature a clamp-on shielded design. Washable & reuseable.
  • Clamps to a 1-3/8" O.D. tube
  • Overall height of the breather and base is 3-1/8”
  • Overall diameter of breather without shield is 2-7/8”
  • Overall diameter of breather with shield is 3-1/4”
Weld-In Steel Valve Cover Breather Set, 1-3/8 Inch Tube
(Part #91017093)
                        Steel baffled weld-in adapters. Includes two clamp-on washable & reuseable shielded filters with breather adapters. The O.D. on the tubes is 1-3/8".
R2C Engine Breather Filter, 1-3/8 Inch
(Part #59210800)

R2C premium breather filters are designed to offer racers the finest crankcase and tank breather technology available today. R2C's flange design improves oil return and significantly reduces the dripping caused by oil collected at the lower flange associated with competitors breather fllters.  R2C breather construction also ends the problems associated with cap failures. HD screens eliminate crushed breathers. R2C breathers are fully washable using biodegradable solvents.

Available in carbon fiber or red, blue and black anodized aluminum cap finishes.


Carbon Fiber breathers are clearance priced.



Outerwears Black Valve Cover Breather Pre-Filter
(Part #5641025-BLK)
                        Made from a durable polyspun material containing uniform micron openings.

Keep the bigger and most damaging particles of sand, dirt, clay and oil drips from getting to and clogging the fins of your valve cover breather filter.

Available in several colors:  red, orange, yellow, blue, pink, purple and black.

  • Base Diameter: 3"
  • Top Diameter: 3"
  • Height: 2-1/2"