Made in USA
Valve Cover Breathers Ball Milled
InfoVehicle Info Needed
BILLET SPECIALTIESPART NUMBER: 135-21920

Valve Cover Breathers Ball Milled

$6695
ShippingShips on 11/05/2026
Lowest PriceLowest Price Guarantee

Oval Breathers
with PCV Valve
    Valve Cover Breathers
  • Ball Milled
  • Polished
  • 1-1/4'' VC Hole
  • 1/pkg

Billet Specialties Valve Cover Breathers are precision machined from 6061-T6 billet aluminum. The push-on style breathers feature a washable and replaceable internal foam screen filter while the PCV style has a replaceable PCV valve for oil control. Available in a smooth, ball-milled or script logo design in either oval or round shapes. 

Features:

  • Available for 1 in. or 1-1/4 in. diameter valve cover holes
  • 2-piece design for easy maintenance
  • Washable filter element
  • PCV breathers feature a common replaceable valve
  • Smooth, ball-milled or script logo design
  • Oval or round shapes
  • Grommet included
  • Sold individually
Part TypeValve Cover Baffle
Product LineBillet Specialties Valve Cover Breathers
BrandBILLET SPECIALTIES
Package Height2.0
Package Width5.0
Package Length6.0
Weight0.5 PG
Part CategoryPerformance Parts
Top FinishPolished
Valve Cover Breather AttachmentPush-in
Breather TubeYes
Top MaterialBillet aluminum
QuantitySold individually
Fits Valve Cover Hole Size1.25 in (31.75 mm)
Breather Top StyleBall-milled
ShieldedNo
Base FinishPolished
Grommets IncludedYes
Pcv ValveYes
Breather ShapeOval
Base MaterialBillet aluminum
Vendor Part Number21920
Package Qty1
Package TypeEA
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Some parts are not legal for use in California or other states with similar laws / regulations
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