ARLEN NESS Method* Clear Series Air Cleaner with Red Finish – Part 18-171
The ARLEN NESS Method* Clear Series Air Cleaner, part number 18-171, combines innovative design with high-performance filtration to enhance your motorcycle’s airflow and engine efficiency. Crafted by ARLEN NESS, this forged billet aluminum air cleaner features a sleek, transparent polycarbonate window that allows you to visually monitor the internal workings of your intake system, ensuring optimal operation at all times.
The durable polycarbonate material is hard-coated for long-lasting protection against engine oil, UV sunlight, and other environmental factors. The radius air inlet design provides unobstructed airflow directly into the engine, promoting maximum power output and throttle response. The included backing plate, forged filter housing, clear polycarbonate top, high-performance filter, gaskets, and hardware make installation straightforward, allowing you to upgrade your air intake system with minimal effort.
Designed with a virtually closed loop system, each hidden breather is o-ringed at the heads, passes through the backing plate, and exits inside the throttle body via proprietary shooter tubes. This innovative setup eliminates the need for external hoses or hardware, reducing clutter and potential leak points. The filter features black pre-oiled cotton material, which provides excellent airflow while maintaining superior filtration standards, protecting your engine from dirt and debris.
Whether you’re customizing your motorcycle for style or performance, the ARLEN NESS Method* Clear Series Air Cleaner with its distinctive red finish not only boosts airflow but also adds a bold visual statement. This high-quality component is designed to fit seamlessly into a variety of Harley-Davidson models, offering a perfect blend of function and aesthetics.
* Forged billet aluminum construction for durability and strength* Polycarbonate window with hard coating for long-lasting clarity and protection* Radius air inlet for unobstructed airflow into the engine* Includes backing plate, forged filter housing, clear polycarbonate top, filter, gaskets, and hardware for easy installation* Hidden breather system with o-ring seals at the heads, passing through the backing plate, and exiting inside the throttle body via proprietary shooter tubes* High-performance black pre-oiled cotton filter for optimal flow and filtration* Virtually closed loop design reduces external hoses and hardware, enhancing engine cleanliness and aesthetics* Distinctive red finish adds bold visual appeal to your motorcycle




