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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
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  • Price
  • Subtotal
  • Crankcase Vent Filter  KNE62-1160

    Crankcase Vent Filter KNE62-1160

    K AND N ENGINEERING

    $31.99
    A quality crankcase vent filter is essential for protecting your engine from contamination while allowing proper pressure relief. This push-in breather prevents dirt and moisture from entering your crankcase, extending engine life and maintaining...
    KNE62-1160
    SKU:
    KNE62-1160
    Availability:
    Ships Same Business Day
    Weight:
    0.35 LBS
    MFG Part #:
    62-1160
    $31.99
    Qty in Cart: 0
    Quantity:
    Price:
    $31.99
    Subtotal:
  • Breather Vent  KNE62-1100

    Breather Vent KNE62-1100

    K AND N ENGINEERING

    $20.99
    Engine breather systems require proper venting to maintain crankcase pressure and prevent seal degradation—this push-in breather vent delivers reliable, maintenance-free operation. The chrome-plated steel construction resists corrosion while the reusable...
    KNE62-1100
    SKU:
    KNE62-1100
    Availability:
    Ships Same Business Day
    Weight:
    0.24 LBS
    MFG Part #:
    62-1100
    $20.99
    Qty in Cart: 0
    Quantity:
    Price:
    $20.99
    Subtotal:
  • Breather Vent  KNE62-1090

    Breather Vent KNE62-1090

    K AND N ENGINEERING

    $20.99
    Engine breather systems demand proper ventilation to maintain crankcase pressure and prevent seal degradation—this push-in breather vent delivers straightforward, reliable airflow management for carbureted and naturally aspirated engines. The reusable...
    KNE62-1090
    SKU:
    KNE62-1090
    Availability:
    Ships Same Business Day
    Weight:
    0.24 LBS
    MFG Part #:
    62-1090
    $20.99
    Qty in Cart: 0
    Quantity:
    Price:
    $20.99
    Subtotal:
  • Crank Vent Rubber Top  KNE62-1030

    Crank Vent Rubber Top KNE62-1030

    K AND N ENGINEERING

    $36.99
    A properly functioning crank vent system is essential for maintaining crankcase pressure and preventing oil leakage, seal damage, and engine wear. This push-in rubber breather top seals your 3/4" crank vent opening with a durable, reusable design that...
    KNE62-1030
    SKU:
    KNE62-1030
    Availability:
    Ships Same Business Day
    Weight:
    0.22 LBS
    MFG Part #:
    62-1030
    $36.99
    Qty in Cart: 0
    Quantity:
    Price:
    $36.99
    Subtotal:
  • Breather Vent  KNE62-1020

    Breather Vent 62-1020

    K AND N ENGINEERING

    $36.99
    A properly functioning breather vent is critical for maintaining crankcase pressure and preventing oil leaks from compromised seals. This push-in design offers a straightforward, reusable solution that installs without modification to existing mounting...
    KNE62-1020
    SKU:
    KNE62-1020
    Availability:
    Ships Same Business Day
    Weight:
    0.24 LBS
    MFG Part #:
    62-1020
    $36.99
    Qty in Cart: 0
    Quantity:
    Price:
    $36.99
    Subtotal:
  • Slip-On Fitting 12AN x 1-1/2 KEVK9039

    Slip-On Fitting 12AN x 1-1/2 K9039

    KEVKO OIL PANS & COMPONENTS

    $44.99
    If you're running a custom cooling or breather system, you need a fitting that seamlessly bridges different hose sizes without compromising flow or reliability. This slip-on adapter converts your 1-1/2" breather tube to a 12AN male connection,...
    KEVK9039
    SKU:
    KEVK9039
    Availability:
    Ships Same Business Day
    Weight:
    0.20 LBS
    MFG Part #:
    K9039
    $44.99
    Qty in Cart: 0
    Quantity:
    Price:
    $44.99
    Subtotal:
  • V/C Breather w/ Shield 1-3/8in ALL36205

    Allstar Performance V/C Breather w/ Shield 1-3/8in ALL36205

    ALLSTAR PERFORMANCE

    $13.69
    Keep your engine breathing clean and running strong with the Allstar Performance V/C Breather with Shield (ALL36205) — a must-have upgrade for any serious motorsports build. The half-shielded design blocks unwanted contaminants while improving crankcase...
    ALL36205
    SKU:
    ALL36205
    Availability:
    Ships Same Business Day
    Weight:
    0.38 LBS
    MFG Part #:
    ALL36205
    $13.69
    Qty in Cart: 0
    Quantity:
    Price:
    $13.69
    Subtotal:
  • V/C Breather w/ Shield 1-1/2in ALL36203

    Allstar Performance V/C Breather w/ Shield 1-1/2in ALL36203

    ALLSTAR PERFORMANCE

    $13.69
    Keep your engine breathing clean and running strong with the Allstar Performance V/C Breather w/ Shield (ALL36203) — a race-proven solution that reduces crankcase pressure, prevents oil mess, and adds a polished look under the hood. Built tough for the...
    ALL36203
    SKU:
    ALL36203
    Availability:
    Ships Same Business Day
    Weight:
    0.38 LBS
    MFG Part #:
    ALL36203
    $13.69
    Qty in Cart: 0
    Quantity:
    Price:
    $13.69
    Subtotal:
  • V/C Breather w/o  Shield 1-1/2in ALL36202

    Allstar Performance V/C Breather w/o Shield 1-1/2in ALL36202

    ALLSTAR PERFORMANCE

    $11.69
    Keep your engine breathing clean and running strong with the Allstar Performance V/C Breather (ALL36202) — a race-proven ventilation solution built to handle the toughest track conditions. This clamp-on breather maximizes airflow while filtering out dirt...
    ALL36202
    SKU:
    ALL36202
    Availability:
    Ships Same Business Day
    Weight:
    0.43 LBS
    MFG Part #:
    ALL36202
    $11.69
    Qty in Cart: 0
    Quantity:
    Price:
    $11.69
    Subtotal:
  • Clamp On Breather 1.75in Mount ALL36107

    Allstar Performance Clamp On Breather 1.75in Mount ALL36107

    ALLSTAR PERFORMANCE

    $33.99
    Keep your engine breathing clean and running strong with the Allstar Performance Clamp On Breather — a simple, reliable solution that mounts effortlessly to your existing setup. Designed for racers and enthusiasts who demand quality without the hassle,...
    ALL36107
    SKU:
    ALL36107
    Availability:
    Ships Same Business Day
    Weight:
    0.21 LBS
    MFG Part #:
    ALL36107
    $33.99
    Qty in Cart: 0
    Quantity:
    Price:
    $33.99
    Subtotal:
  • Clamp On Breather 1.50in Mount ALL36106

    Allstar Performance Clamp On Breather 1.50in Mount ALL36106

    ALLSTAR PERFORMANCE

    $33.99
    Keep your engine breathing clean and running strong with the Allstar Performance Clamp On Breather. Designed for easy no-drill installation, this sleek chrome and black breather fits right into any performance or race build without the hassle. It's a...
    ALL36106
    SKU:
    ALL36106
    Availability:
    Ships Same Business Day
    Weight:
    0.22 LBS
    MFG Part #:
    ALL36106
    $33.99
    Qty in Cart: 0
    Quantity:
    Price:
    $33.99
    Subtotal:
  • Breather Element  ALL36103

    Allstar Performance Breather Element ALL36103

    ALLSTAR PERFORMANCE

    $13.99
    Keep your engine breathing clean and running strong with the Allstar Performance Breather Element ALL36103. Designed for easy clamp-on installation, this reusable breather filters out contaminants while allowing proper ventilation — a simple upgrade that...
    ALL36103
    SKU:
    ALL36103
    Availability:
    Ships Same Business Day
    Weight:
    0.11 LBS
    MFG Part #:
    ALL36103
    $13.99
    Qty in Cart: 0
    Quantity:
    Price:
    $13.99
    Subtotal:
  • Valve Cover Breather Kit U-Weld - Aluminum MOR68853

    Moroso Valve Cover Breather Kit U-Weld - Aluminum 68853

    MOROSO

    $103.99
    A properly functioning valve cover breather system is critical for engine longevity and performance—it prevents pressure buildup that can damage seals and gaskets while reducing crankcase emissions. The Moroso U-Weld aluminum breather kit delivers...
    MOR68853
    SKU:
    MOR68853
    Availability:
    Ships Same Business Day
    Weight:
    0.50 LBS
    MFG Part #:
    68853
    $103.99
    Qty in Cart: 0
    Quantity:
    Price:
    $103.99
    Subtotal:
  • Valve Cover Breather Kit GM LS w/An Oil Fill Bung MOR68848

    Moroso Valve Cover Breather Kit GM LS w/An Oil Fill Bung 68848

    MOROSO

    $70.99
    A properly functioning crankcase ventilation system is essential for engine longevity and performance—excess pressure and moisture buildup will compromise seal integrity and reduce power output. The Moroso Valve Cover Breather Kit for GM LS engines...
    MOR68848
    SKU:
    MOR68848
    Availability:
    Ships Same Business Day
    Weight:
    0.20 LBS
    MFG Part #:
    68848
    $70.99
    Qty in Cart: 0
    Quantity:
    Price:
    $70.99
    Subtotal:
  • Valve Cover Breather Kit Push-In Fits 1.22 Hole MOR68810

    Moroso Valve Cover Breather Kit Push-In Fits 1.22 Hole 68810

    MOROSO

    $80.99
    Proper crankcase ventilation is essential for engine longevity and performance—excessive pressure buildup can compromise seals, gaskets, and overall engine reliability. The Moroso Valve Cover Breather Kit provides a clean, efficient solution for managing...
    MOR68810
    SKU:
    MOR68810
    Availability:
    Ships Same Business Day
    Weight:
    1.20 LBS
    MFG Part #:
    68810
    $80.99
    Qty in Cart: 0
    Quantity:
    Price:
    $80.99
    Subtotal:
  • Breather Assembly CT525  KRC79525000

    KRC Breather Assembly CT525 CTB 79525000

    KRC POWER STEERING

    $349.05
    Proper crankcase ventilation is critical for LS-series engine longevity and performance—excess pressure and blow-by gases can compromise seals, contaminate oil, and reduce power output. The KRC Breather Assembly CT525 CTB delivers a complete, engineered...
    KRC79525000
    SKU:
    KRC79525000
    Availability:
    Ships Same Business Day
    Weight:
    3.10 LBS
    MFG Part #:
    CTB 79525000
    Qty in Cart: 0
    Quantity:
    Price:
    $349.05
    Subtotal:
  • Dee-Flektor Filter  KNE62-1516

    Dee-Flektor Filter KNE62-1516

    K AND N ENGINEERING

    $31.99
    Engine breather systems require reliable filtration to prevent contaminants from entering your crankcase while maintaining proper ventilation under varying boost and load conditions. The Dee-Flektor Filter delivers half-shielded protection with a...
    KNE62-1516
    SKU:
    KNE62-1516
    Availability:
    Ships Same Business Day
    Weight:
    0.50 LBS
    MFG Part #:
    62-1516
    $31.99
    Qty in Cart: 0
    Quantity:
    Price:
    $31.99
    Subtotal:
  • Crankcase Vent Filter  KNE62-1170

    Crankcase Vent Filter KNE62-1170

    K AND N ENGINEERING

    $36.99
    A properly functioning crankcase vent system is critical for engine longevity and performance—it prevents pressure buildup that can compromise seals and gaskets while reducing blow-by contamination. This KNE62-1170 crankcase vent filter offers reliable,...
    KNE62-1170
    SKU:
    KNE62-1170
    Availability:
    Ships Same Business Day
    Weight:
    0.37 LBS
    MFG Part #:
    62-1170
    $36.99
    Qty in Cart: 0
    Quantity:
    Price:
    $36.99
    Subtotal:
  • Breather Vent  KNE62-1010

    Breather Vent KNE62-1010

    K AND N ENGINEERING

    $36.99
    Proper crankcase ventilation is critical for engine longevity and performance—inadequate breathing leads to pressure buildup, oil seal failure, and power loss. The KNE62-1010 breather vent provides reliable, maintenance-free crankcase evacuation with a...
    KNE62-1010
    SKU:
    KNE62-1010
    Availability:
    Ships Same Business Day
    Weight:
    0.23 LBS
    MFG Part #:
    62-1010
    Qty in Cart: 0
    Quantity:
    Price:
    $36.99
    Subtotal:
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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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