Best Breather Engine Valve Covers of 2025

The Moroso Valve Cover Breather is designed specifically for your vehicle, ensuring a perfect fit. With compact dimensions of approximately 2.03 cm in height and a lightweight design of just 0.4 pounds, it won’t add unnecessary bulk to your engine setup. Originating from China, this breather is made with quality in mind, providing reliable performance. Its push-in style makes installation simple and hassle-free, allowing you to enhance your engine's ventilation without complicated tools or processes.

The Ford Valve Cover Breather is designed for reliable and consistent performance, making it an excellent choice for your vehicle. Its high-quality materials ensure exceptional durability, so you can trust it to withstand the demands of your engine. This product is manufactured to meet or exceed rigorous quality standards, providing peace of mind for every driver. If you have any questions about fitment or compatibility with your vehicle, support is readily available to assist you.

The Larlansz Valve Cover Breather is a high-quality aftermarket oil cap breather designed for LSX LS1/LS2/LS3/LS6/LS7 engines. Made from solid billet aluminum, this breather is resistant to corrosion and rust, ensuring durability. It features venting holes that protect the engine from dust and impurities, improving engine performance. The CNC-machined construction provides a precise fit, and the silicone O-ring prevents oil seepage at the base of the adapter. The top of the adapter is designed to accept a 10AN hose end, allowing for easy installation of a custom crankcase evacuation system, PCV system, or vacuum pump. With its pre-treated cotton/gauze filter elements, this breather not only protects your engine but also allows it to breathe freely, ensuring optimal performance.

The Moroso Valve Cover is designed to keep your engine clean and efficient. You can choose between a half-hooded or non-hooded design, providing you with options based on your needs. This product ensures that dirt and airborne particles are kept at bay, allowing for optimal airflow. Additionally, it comes with a fully exposed filter element and a chrome-plated top, adding a stylish touch to your engine. Before using, you can easily clean and reuse the oil, making maintenance hassle-free. Overall, this valve cover helps enhance your engine's performance while protecting it from contaminants.

Pirate Mfg Chrome Valve Cover Breather Caps, also known as Pirate Mfg Breather Caps, are the perfect addition to your engine valve covers. Made of thick gauge steel with a chrome steel finish, these breather caps not only add a touch of style to your vehicle but also provide practical benefits. The 1" diameter stem size ensures a secure fit, while the 2-3/4" diameter push-in caps and grommets fit 1-1/4" holes, making them compatible with most steel valve covers. Whether you have a Chevy, Ford, or Mopar (small or big block), these breather caps will work great. Enhance the performance and appearance of your engine with Pirate Mfg Breather Caps.

The Phoddar Vent Valve Set is designed specifically for the Jeep Grand Cherokee 4.0L from 2000 to 2004. This set includes durable parts made from ABS plastic, ensuring resistance to corrosion and dust, which helps maintain the performance of your vehicle. With a direct fit design, installation is simple and hassle-free. The hoses are engineered to withstand extreme temperatures and oil vapors, providing a reliable solution that minimizes the risk of cracking or leaking. Quality is guaranteed, as these parts exceed OEM specifications and have been rigorously tested for a long-lasting service life.

The Edelbrock 4420 Valve Cover Breather, also known as the Edelbrock Breather, is a high-performance accessory designed specifically for circle track racing applications. With its oiled-cotton, gauze, and screen element, this breather offers minimal restriction, allowing for maximum airflow. The chrome-plated top not only provides a lasting shine but also adds a touch of style to your engine. Featuring the iconic "Edelbrock" logo, this breather is a statement piece for any car enthusiast. Additionally, the washable breathers are available in a push-on style, making maintenance a breeze. Upgrade your engine with the Edelbrock 4420 Valve Cover Breather and experience improved performance and a sleek look.

The Edelbrock 4449 Signature Series Valve Cover is designed to clear air-conditioning and alternator brackets, while breather baffles prevent excessive oil usage. With an overall height of 2.8 inches, it is engineered for serviceability and styled for excitement. Matching breathers are sold separately.

Pirate Mfg Black Valve Cover Breather Caps, also known as Pirate Mfg Breather Caps, are a pair of black push-in valve cover breathers with matching grommets. Made of thick gauge steel with a black painted finish, these breather caps have a 1" diameter stem size and are compatible with most chrome steel or aluminum valve covers. The kit includes two 2-3/4" diameter push-in breather caps and grommets that fit 1-1/4" holes and 1/4" wide groove grommets for steel valve covers. With their sleek black design and high-quality construction, these breather caps not only enhance the appearance of your engine but also effectively prevent oil leaks and ensure proper ventilation. Upgrade your engine's performance and style with Pirate Mfg Black Valve Cover Breather Caps.

The Flylin Valve Cover Breather is designed for easy installation, allowing you to enhance your engine's performance quickly. Made from durable metal, it promises long-lasting use and resilience against damage. The breather fits snugly in your valve cover, ensuring it stays securely in place even when the engine is running. This product is compatible with various engine models, including SBC, BBC, SBF, and others, so you can enjoy its benefits without worry. Always check compatibility before purchasing to ensure a perfect fit.