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Valve Cover Breathers and Components

Valve Cover Breathers and Components

Valve Cover Breathers and Components

Circle Track Valve Cover Breathers & Components at JJ Motorsports

Valve cover breathers and related hardware promote proper crankcase ventilation, reducing pressure buildup and protecting internal engine components. Compatible with high-RPM applications, they are crucial for reliable airflow management. Combine them with other engine optimization products for maximum gains.

Shop trusted brands like Allstar Performance for clamp-on options, Moroso for high-flow designs, and Peterson Fluid Systems for premium breathers. Explore related categories such as Circle Track Engine Covers, Pans & Dress Up Components for additional protection or Circle Track Engines and Components for complete upgrades.

Top Circle Track Valve Cover Breathers & Components

Browse our in-stock inventory below with same-day shipping and expert support. Free shipping on orders over $99! Questions? Contact us for fitment advice!

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  • Product
  • Qty in Cart
  • Quantity
  • Price
  • Subtotal
  • Chrome V. Cvr Breathers  MOR68815

    Moroso Chrome V. Cvr Breathers 68815

    MOROSO

    $25.99
    Proper crankcase ventilation is critical for engine longevity and consistent performance, especially in high-demand racing applications. The Moroso Chrome V-Cover Breathers provide reliable, reusable ventilation with a clean, finished look that...
    MOR68815
    SKU:
    MOR68815
    Availability:
    Ships Same Business Day
    Weight:
    0.47 LBS
    MFG Part #:
    68815
    $25.99
    Qty in Cart: 0
    Quantity:
    Price:
    $25.99
    Subtotal:
  • Chrome V. Cvr Breathers  MOR68813

    Moroso Chrome V. Cvr Breathers 68813

    MOROSO

    $34.99
    Proper crankcase ventilation is critical to engine longevity and performance—excessive pressure buildup accelerates seal wear and oil leakage. The Moroso Chrome V-Cover Breathers deliver reliable, no-fuss ventilation while maintaining a clean engine bay...
    MOR68813
    SKU:
    MOR68813
    Availability:
    Ships Same Business Day
    Weight:
    0.57 LBS
    MFG Part #:
    68813
    $34.99
    Qty in Cart: 0
    Quantity:
    Price:
    $34.99
    Subtotal:
  • Chrome V. Cvr Breather  MOR68812

    Moroso Chrome V. Cvr Breather 68812

    MOROSO

    $34.99
    Proper crankcase ventilation is essential for engine longevity and reliable performance—excessive pressure buildup can compromise seals and gaskets. This Moroso chrome breather provides efficient airflow management while adding a polished, professional...
    MOR68812
    SKU:
    MOR68812
    Availability:
    Ships Same Business Day
    Weight:
    0.55 LBS
    MFG Part #:
    68812
    $34.99
    Qty in Cart: 0
    Quantity:
    Price:
    $34.99
    Subtotal:
  • Chrome V. Cvr Breathers  MOR68811

    Moroso Chrome V. Cvr Breathers 68811

    MOROSO

    $34.99
    Proper crankcase ventilation is critical to engine longevity and performance—excessive pressure buildup can compromise seals, gaskets, and overall reliability. The Moroso Chrome V-Cover Breathers provide a clean, functional solution that manages blow-by...
    MOR68811
    SKU:
    MOR68811
    Availability:
    Ships Same Business Day
    Weight:
    0.54 LBS
    MFG Part #:
    68811
    $34.99
    Qty in Cart: 0
    Quantity:
    Price:
    $34.99
    Subtotal:
  • Valve Cover Breather Kit  MOR68800

    Moroso Valve Cover Breather Kit 68800

    MOROSO

    $80.99
    Proper crankcase ventilation is critical for engine longevity and performance—excessive pressure buildup can compromise seals, gaskets, and overall engine reliability. The Moroso Valve Cover Breather Kit 68800 provides efficient, dependable crankcase...
    MOR68800
    SKU:
    MOR68800
    Availability:
    Ships Same Business Day
    Weight:
    1.35 LBS
    MFG Part #:
    68800
    $80.99
    Qty in Cart: 0
    Quantity:
    Price:
    $80.99
    Subtotal:
  • Clamp On Breather - Fits 1in ID Tubes MOR68792

    Moroso Clamp On Breather - Fits 1in ID Tubes 68792

    MOROSO

    $42.99
    Proper crankcase ventilation is essential for engine longevity and performance—excessive pressure buildup accelerates seal wear and oil leakage. The Moroso clamp-on breather eliminates guesswork with a straightforward, reusable design that integrates...
    MOR68792
    SKU:
    MOR68792
    Availability:
    Ships Same Business Day
    Weight:
    0.10 LBS
    MFG Part #:
    68792
    $42.99
    Qty in Cart: 0
    Quantity:
    Price:
    $42.99
    Subtotal:
  • Valve Cover Breather Kit  MOR68762

    Moroso Valve Cover Breather Kit 68762

    MOROSO

    $145.99
    A properly functioning crankcase ventilation system is essential for engine longevity and consistent performance—excess pressure and blow-by gases must be evacuated efficiently to prevent seal degradation and maintain optimal ring sealing. The Moroso...
    MOR68762
    SKU:
    MOR68762
    Availability:
    Ships Same Business Day
    Weight:
    1.39 LBS
    MFG Part #:
    68762
    $145.99
    Qty in Cart: 0
    Quantity:
    Price:
    $145.99
    Subtotal:
  • Crankcase Vent 9/16in. Fln. KNE62-2480

    Crankcase Vent 9/16in. Fln. KNE62-2480

    K AND N ENGINEERING

    $36.99
    A properly functioning crankcase vent system is essential for maintaining engine health and preventing pressure buildup that can compromise seals and gaskets. This K&N crankcase breather combines reliable performance with a compact clamp-on design that...
    KNE62-2480
    SKU:
    KNE62-2480
    Availability:
    Ships Same Business Day
    Weight:
    0.12 LBS
    MFG Part #:
    62-2480
    $36.99
    Qty in Cart: 0
    Quantity:
    Price:
    $36.99
    Subtotal:
  • Breather Vent  KNE62-2470

    Breather Vent KNE62-2470

    K AND N ENGINEERING

    $31.99
    Crankcase pressure buildup degrades engine seals, gaskets, and overall reliability—this K&N breather vent effectively routes vapors away while maintaining system integrity. The clamp-on design offers straightforward installation without modifications,...
    KNE62-2470
    SKU:
    KNE62-2470
    Availability:
    Ships Same Business Day
    Weight:
    0.12 LBS
    MFG Part #:
    62-2470
    $31.99
    Qty in Cart: 0
    Quantity:
    Price:
    $31.99
    Subtotal:
  • 3/4inFLG x 1-3/8inOD x 1-1/8inH Vent Filter KNE62-1560

    3/4inFLG x 1-3/8inOD x 1-1/8inH Vent Filter KNE62-1560

    K AND N ENGINEERING

    $36.99
    A quality breather filter is essential for controlling crankcase vapors and protecting your engine from contamination. This K&N vent filter delivers reliable filtration in a compact, bolt-on design that fits 3/4-inch hose connections—making it an ideal...
    KNE62-1560
    SKU:
    KNE62-1560
    Availability:
    Ships Same Business Day
    Weight:
    0.10 LBS
    MFG Part #:
    62-1560
    $36.99
    Qty in Cart: 0
    Quantity:
    Price:
    $36.99
    Subtotal:
  • Dee-Flektor Filter  KNE62-1520

    Dee-Flektor Filter KNE62-1520

    K AND N ENGINEERING

    $36.99
    Engine breather systems require reliable filtration to prevent contaminant ingestion while maintaining proper crankcase ventilation—this directly impacts engine longevity and performance consistency. The Dee-Flektor Filter KNE62-1520 delivers efficient...
    KNE62-1520
    SKU:
    KNE62-1520
    Availability:
    Ships Same Business Day
    Weight:
    0.48 LBS
    MFG Part #:
    62-1520
    $36.99
    Qty in Cart: 0
    Quantity:
    Price:
    $36.99
    Subtotal:
  • 1.5in Breather w/Shield Chrome Top KNE62-1514

    1.5in Breather w/Shield Chrome Top KNE62-1514

    K AND N ENGINEERING

    $31.99
    Engine breathers manage crankcase pressure and prevent oil blow-by that can compromise engine seals and performance. This K&N 1.5" breather with chrome shield delivers reliable crankcase ventilation while maintaining a clean engine bay aesthetic. The...
    KNE62-1514
    SKU:
    KNE62-1514
    Availability:
    Ships Same Business Day
    Weight:
    0.47 LBS
    MFG Part #:
    62-1514
    $31.99
    Qty in Cart: 0
    Quantity:
    Price:
    $31.99
    Subtotal:
  • 1.385in. Breather w.Shield Chrome Top KNE62-1513

    1.385in. Breather w.Shield Chrome Top KNE62-1513

    K AND N ENGINEERING

    $31.99
    Engine breather systems are critical for managing crankcase pressure and preventing oil blow-by—a properly sized breather directly impacts engine longevity and performance consistency. This K&N 1.385" clamp-on breather delivers reliable crankcase...
    KNE62-1513
    SKU:
    KNE62-1513
    Availability:
    Ships Same Business Day
    Weight:
    0.46 LBS
    MFG Part #:
    62-1513
    $31.99
    Qty in Cart: 0
    Quantity:
    Price:
    $31.99
    Subtotal:
  • C/V 1FLG 3OD 2-1/2H W-D/  KNE62-1511

    C/V 1FLG 3OD 2-1/2H W-D/ KNE62-1511

    K AND N ENGINEERING

    $55.99
    Proper crankcase ventilation is essential for engine longevity and reliability—excessive pressure buildup can compromise seals, gaskets, and overall engine integrity. This K&N breather element combines proven filtration technology with a compact clamp-on...
    KNE62-1511
    SKU:
    KNE62-1511
    Availability:
    Ships Same Business Day
    Weight:
    0.47 LBS
    MFG Part #:
    62-1511
    Qty in Cart: 0
    Quantity:
    Price:
    $55.99
    Subtotal:
  • 1.5in Breather No Shield Chrome Top KNE62-1460

    1.5in Breather No Shield Chrome Top KNE62-1460

    K AND N ENGINEERING

    $31.99
    A quality breather system is essential for maintaining crankcase pressure and preventing oil blow-by that can compromise engine seals and performance. This K&N breather delivers reliable air filtration with a simple clamp-on design that works across...
    KNE62-1460
    SKU:
    KNE62-1460
    Availability:
    Ships Same Business Day
    Weight:
    0.36 LBS
    MFG Part #:
    62-1460
    $31.99
    Qty in Cart: 0
    Quantity:
    Price:
    $31.99
    Subtotal:
  • Crankcase Vent Filter  KNE62-1440

    Crankcase Vent Filter KNE62-1440

    K AND N ENGINEERING

    $20.99
    A properly functioning crankcase vent system is critical for engine longevity—it prevents pressure buildup, reduces oil leakage, and protects internal seals from premature failure. This K&N clamp-on filter traps contaminants before they enter your...
    KNE62-1440
    SKU:
    KNE62-1440
    Availability:
    Ships Same Business Day
    Weight:
    0.38 LBS
    MFG Part #:
    62-1440
    $20.99
    Qty in Cart: 0
    Quantity:
    Price:
    $20.99
    Subtotal:
  • Crankcase Vent Filter  KNE62-1390

    Crankcase Vent Filter KNE62-1390

    K AND N ENGINEERING

    $20.99
    A quality crankcase vent filter prevents oil vapor and contaminants from entering your engine bay while maintaining proper crankcase pressure—essential for engine longevity and performance. This K&N breather delivers reliable filtration in a compact,...
    KNE62-1390
    SKU:
    KNE62-1390
    Availability:
    Ships Same Business Day
    Weight:
    0.44 LBS
    MFG Part #:
    62-1390
    $20.99
    Qty in Cart: 0
    Quantity:
    Price:
    $20.99
    Subtotal:
  • 1inID  2inDia. Clamp On Breather KNE62-1370

    1inID 2inDia. Clamp On Breather KNE62-1370

    K AND N ENGINEERING

    $36.99
    A quality breather system prevents crankcase pressure buildup that can compromise engine seals, gaskets, and overall reliability—especially critical in high-performance and forced induction applications. This K&N clamp-on breather offers a...
    KNE62-1370
    SKU:
    KNE62-1370
    Availability:
    Ships Same Business Day
    Weight:
    0.21 LBS
    MFG Part #:
    62-1370
    $36.99
    Qty in Cart: 0
    Quantity:
    Price:
    $36.99
    Subtotal:
  • Crankcase Vent Filter  KNE62-1340

    Crankcase Vent Filter KNE62-1340

    K AND N ENGINEERING

    $36.99
    Crankcase pressure buildup degrades engine seals and forces oil past gaskets—a quality vent filter maintains proper crankcase ventilation while protecting your engine from contaminants. The K&N KNE62-1340 delivers a straightforward, reusable solution...
    KNE62-1340
    SKU:
    KNE62-1340
    Availability:
    Ships Same Business Day
    Weight:
    0.27 LBS
    MFG Part #:
    62-1340
    $36.99
    Qty in Cart: 0
    Quantity:
    Price:
    $36.99
    Subtotal:
  • Crank Vent-Chrome Top 1/  KNE62-1330

    Crank Vent-Chrome Top 1/ KNE62-1330

    K AND N ENGINEERING

    $36.99
    A quality crankcase breather is essential for maintaining proper engine ventilation and preventing pressure buildup that can compromise seals and gaskets. This K&N crank vent offers a reliable, clamp-on design that integrates seamlessly into your...
    KNE62-1330
    SKU:
    KNE62-1330
    Availability:
    Ships Same Business Day
    Weight:
    0.24 LBS
    MFG Part #:
    62-1330
    Qty in Cart: 0
    Quantity:
    Price:
    $36.99
    Subtotal:
  • Total: items /

Adding your products to cart

Breathers for Valve Covers
 Valve cover breathers serve as a critical component in the engine's ventilation system. They are designed to allow the expulsion of gases from the crankcase, promoting efficient engine performance and reducing harmful emissions. These breathers help to maintain the pressure balance within the engine, preventing the buildup of excessive pressure which can lead to oil leaks or damage to the engine's seals and gaskets. Available in various styles and designs, valve cover breathers not only enhance engine functionality but also offer an opportunity to customize the engine's appearance.

 

 Rocker Cover Breathers
 Rocker Cover Breathers, often synonymous with valve cover breathers, play a pivotal role in the engine's positive crankcase ventilation (PCV) system. These components are mounted on the rocker covers and are essential for venting out unwanted gases from the engine's crankcase. By doing so, they help in reducing the engine's internal pressure and minimizing the risk of oil leakage through the seals. Rocker Cover Breathers come in various designs, including those that can directly replace the factory breathers, offering improved ventilation and a touch of customization to the engine bay.

 

 SBC Valve Cover Breathers
 SBC (Small Block Chevy) Valve Cover Breathers are specifically designed for the iconic range of Chevrolet small-block engines. Known for their durability and high performance, these breathers match the unique requirements of SBC engines, ensuring optimal crankcase ventilation. They are available in various finishes and styles, from classic to contemporary, to complement the aesthetic of any SBC engine while providing effective expulsion of blow-by gases. Installing high-quality SBC Valve Cover Breathers is crucial for maintaining the legendary performance of Small Block Chevy engines.

 

 Clamp-On Breather Filters
 Clamp-On Breather Filters represent a universal solution suitable for a wide range of engines and valve covers. These breathers attach directly to the valve cover vent tube, providing an efficient filtration system for the expelled gases. The filter element within traps dust and debris, ensuring only clean air is released into the atmosphere. This not only helps in reducing environmental pollution but also protects the engine by preventing the ingestion of particulate matter. Clamp-On Breather Filters are easy to install and are an excellent choice for those looking for a simple yet effective way to enhance their engine's ventilation system.

Big Power, Nice Sound!

Picked up a Pro Circuit pipe and silencer for my YZ125 it’s a game changer. The power feels way better and the sound is awesome.

Tyler D. - 06/12

Perfect Fit

First time ordering here and dang y’all knocked it outta the park! The wheels fit my Ranger UTV perfect, and I’ll definitely be back for more 5 stars all day!

Sarah L. - 08/24

Fast Shipping!!

Ordered on a Monday, and it was on my doorstep by Wednesday! Super impressed with how fast the shipping was.

Jason P. - 09/13

Helps keep cool, works great!

Bought the dual pass Allstar radiator for my build, and it’s been solid. Keeps the engine running cool even on the hottest days no complaints here!

Jake M. - 05/21

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