Best Oil Breather & Filter Caps of 2025

The MotoRad Breather Cap is designed to provide a reliable seal, preventing any leaks that could affect your engine's performance. By stopping engine blow-by, this cap ensures that your vehicle runs smoothly and efficiently. Its high-quality construction meets all OEM specifications, giving you peace of mind that you're using a dependable product. With vehicle-specific fitment, you can easily install this cap to enhance your engine's functionality and longevity. Experience improved engine performance and maintenance convenience with this essential component.

The Moroso 68815 Valve Cover with Clamp-On Breather is available in half-hooded or non-hooded options for universal fit. It provides maximum protection against dirt and debris while allowing unrestricted airflow. The filter element is cleanable and reusable, and the cover also comes with a chrome-plated top.

Trans-Dapt Breather Cap is a chrome-finished cap designed for vehicles. It measures 6.096 H x 14.732 L x 12.7 W in centimeters and weighs only 0.022 pounds. Originating from Taiwan, this cap is vehicle-specific. The chrome finish adds a stylish touch to your engine. Its lightweight design ensures easy handling. Made for specific vehicle models, it guarantees a perfect fit. Keep your engine running smoothly with Trans-Dapt Breather Cap.

The ZyloPlinx Oil Filter Cap is designed to fit a wide range of Chrysler and Dodge models from 2014 to 2022, ensuring compatibility with vehicles like the Ram 1500 and Challenger. This cap features high-quality aluminum construction, which enhances durability and extends its lifespan. The part numbers 68191350AA, 917-190, and 917190 make it easy to identify the right fit for your vehicle. With its precise compatibility, you can replace your oil filter housing cap confidently, knowing it will perform reliably and help maintain your engine's efficiency.

This Proform Push-In Air Breather Cap is an auto part used for oil breather and filter caps. It is made in Taiwan and weighs 0.25lbs. The package dimensions are 14.478cm x 9.652cm x 3.302cm.

The Buyers Breather Cap is an essential replacement part that helps keep your equipment safe from harmful contaminants. By covering your equipment, this cap prevents dirt, dust, and debris from entering, which can enhance the lifespan and efficiency of your machinery. Designed specifically for the TFA005715 and BC40 models, it ensures a snug fit and reliable performance. With this cap, you can enjoy peace of mind knowing your equipment is well-protected, allowing it to operate smoothly without the risk of damage from unwanted particles.

The ProForm Oil Breather Cap is designed with a convenient push-in style, making installation easy for you. Its round shape and 3-inch diameter ensure a snug fit for your engine components. This cap is compatible with a 0.75-inch hole, allowing for versatile application across different setups. With a plain design and no logo, it offers a clean look that fits seamlessly with your vehicle's aesthetics. This product not only enhances your engine's performance but also provides a straightforward solution for maintaining oil breathability.

The Comeonfull Filler Breather Cap is designed for oil tank applications, ensuring proper ventilation and preventing pressure buildup. With its 3/4" plastic threads, you can easily screw it onto your oil tank without hassle. This cap is compatible with rotary vane vacuum pumps, making it a versatile addition to your equipment. It helps maintain optimal oil levels by allowing air to escape, which can enhance the performance of your machinery. This product is a reliable choice for anyone looking to improve their oil management system.

The CFM Breather for MazdaSpeed 3 is designed to effectively manage positive crankcase pressure, ensuring your engine runs smoothly. As a direct replacement for your oil cap, it’s easy to install and enhances your vehicle’s performance. The one-way check ball feature is particularly useful for MAF-based cars, preventing unwanted backflow. Additionally, the internal baffle and stainless steel mesh disk work together to separate oil from air, promoting cleaner airflow and better engine efficiency. This breather retains the factory PCV system, providing a seamless upgrade for your vehicle.

The CFM Performance Breather Cap is designed to enhance your 2015-2020 Dodge Charger SRT Hellcat's engine performance. It effectively alleviates positive crankcase pressure, ensuring smoother operation. As a direct replacement for your oil cap, installation is straightforward and hassle-free. The built-in one-way check ball is particularly beneficial for mass airflow (MAF) based vehicles, helping to maintain optimal performance. Additionally, the internal baffle and stainless steel mesh work together to separate oil from air, enhancing your engine’s efficiency. With the retention of the factory PCV system, you can enjoy improved functionality without sacrificing OEM standards.