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Vehicle Info NeededBILLET SPECIALTIESPART NUMBER: 135-21825
Valve Cover Breather Ball Milled
$5795
Ships on 09/15/2026
Lowest Price GuaranteeRound Breathers
with PCV Valve
with PCV Valve
- Valve Cover Breather
- Ball Milled
- Polished
- 1'' To 1-1/4'' VC Hole
- 1/pkg
Note: Use of OE grommet is required for valve covers with a 1' diameter breather hole. The provided grommet is for use with Billet Specialties valve covers with a 1-1/4' breather hole.
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 Height2.6
Package Width5.4
Package Length5.8
Weight0.66 PG
Part CategoryPerformance Parts
Top FinishPolished
Valve Cover Breather AttachmentPush-in
Breather TubeYes
Top MaterialBillet aluminum
QuantitySold individually
Fits Valve Cover Hole Size1 in (25.4 mm)
Breather Top StyleBall-milled
ShieldedNo
Base FinishPolished
Pcv ValveYes
Breather ShapeRound
Base MaterialBillet aluminum
Vendor Part Number21825
Package Qty1
Package TypeEA
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Some parts are not legal for use in California or other states with similar laws / regulations
