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Valve Cover Breathers

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- Chrome (3) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
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- Yes (1)
Breather Top Style
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Valve Cover Breathers

Blow-by gases can mix with oil vapors in your crankcase, contaminating your oil and creating sludge. Your positive crankcase ventilation (PCV) system gets those gases...

Blow-by gases can mix with oil vapors in your crankcase, contaminating your oil and creating sludge. Your positive crankcase ventilation (PCV) system gets those gases out, recirculating them for combustion. The system may need a source of fresh air, preferably free of dirt and debris—that’s where the valve cover breather comes in!

Top Brands

From plain Jane to shiny and show-ready, Summit Racing Equipment carries an amazing selection of valve cover breathers. Shop from manufacturers like K&N, Proform, Billet Specialties, Cal Custom, Spectre, Moroso, and many more.

Blow-by gases can mix with oil vapors in your crankcase, contaminating your oil and creating sludge. Your positive crankcase ventilation (PCV) system gets those gases out, recirculating them for combustion. The system may need a source of fresh air, preferably free of dirt and debris—that’s where the valve cover breather comes in!

Top Brands

From plain Jane to shiny and show-ready, Summit Racing Equipment carries an amazing selection of valve cover breathers. Shop from manufacturers like K&N, Proform, Billet Specialties, Cal Custom, Spectre, Moroso, and many more.

Showing In Stock Items. Show All 7 Items.

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Results 1 - 7 of 7

Moroso Valve Cover Filtered Breathers 68840

Moroso Valve Cover Filtered Breathers 68840

Moroso Valve Cover Filtered Breathers 68840

Valve Cover Breathers, Filtered, Twist-on, Round, Steel, Chrome, Moroso Logo, Fits Original LS Double Tab Valve Covers, Chevy, Small Block LS, Each

Part Number: MOR-68840

Not Yet Reviewed

Estimated Ship Date: Monday 1/19/2026

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Estimated Ship Date: Monday 1/19/2026

Moroso Valve Cover Filtered Breathers 68846

Moroso Valve Cover Filtered Breathers 68846

Moroso Valve Cover Filtered Breathers 68846

Valve Cover Filtered Breather, 1.000 in., Round, Rubber, Black, Steel, Black, LS, Each

Part Number: MOR-68846

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Feb 11, 2026 if ordered today

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Estimated Ship Date: Feb 11, 2026 if ordered today

Moroso Valve Cover Filtered Breathers 68839

Moroso Valve Cover Filtered Breathers 68839

Moroso Valve Cover Filtered Breathers 68839

Valve Cover Breather, Clamp-On, Round, 1 in. Nipple, Moroso Logo, GM LS Engines, Each

Part Number: MOR-68839

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 1/19/2026

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Estimated Ship Date: Monday 1/19/2026

Moroso Valve Cover Filtered Breathers 68847

Moroso Valve Cover Filtered Breathers 68847

Moroso Valve Cover Filtered Breathers 68847

Breather, LS Double Tab Cover Breather, Twist-On, Rubber, Black, Chevy, Each

Part Number: MOR-68847

Not Yet Reviewed

Estimated Ship Date: Feb 11, 2026 if ordered today

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Estimated Ship Date: Feb 11, 2026 if ordered today

ZZPerformance Valve Cover Breathers ZZ-VCBRTH-V2

ZZPerformance Valve Cover Breathers ZZ-VCBRTH-V2

ZZPerformance Valve Cover Breathers ZZ-VCBRTH-V2

Valve Cover Breather, Twist-On, Round, Plastic, Black, Each

Part Number: XPF-ZZ-VCBRTH-V2

Not Yet Reviewed

Estimated Ship Date: Monday 1/19/2026

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Estimated Ship Date: Monday 1/19/2026

Moroso Valve Cover Filtered Breathers 68848

Moroso Valve Cover Filtered Breathers 68848

Moroso Valve Cover Filtered Breathers 68848

Breather, Screw-In, Rubber, Black, 1 1/4 in.-12 Threads, Chevy, Each

Part Number: MOR-68848

Not Yet Reviewed

Estimated Ship Date: Feb 12, 2026 if ordered today

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Estimated Ship Date: Feb 12, 2026 if ordered today

Moroso Valve Cover Filtered Breathers 68841

Moroso Valve Cover Filtered Breathers 68841

Moroso Valve Cover Filtered Breathers 68841

Valve Cover Breather, Filtered, Round, Screw-in, Chrome Steel Top, Moroso Logo, Each

Part Number: MOR-68841

5.0 out of 5 stars ( 5 )

Estimated Ship Date: Monday 1/19/2026

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Estimated Ship Date: Monday 1/19/2026

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