Arlen Ness Air Boxes
Representative Photo, actual item may vary
Representative Photo, actual item may vary
Arlen Ness 602-022 Replacement Hardware Kit for Monster Sucker Velocity Air Cleaners
Arlen Ness 602-020 Monster Sucker & Velocity Series Air Cleaner Replacement Gasket Hardware Kit
Arlen Ness 600-269 Replacement Clear Polycarbonate Window for Method Oval Air Cleaners
Arlen Ness Air Boxes: California-Crafted Performance Meets Custom Style
When it comes to merging show-quality aesthetics with genuine breathing performance, few names carry more weight than Arlen Ness. Founded in California in 1970, Arlen Ness has designed and manufactured industry-leading performance parts for motorcycles for over 50 years — and nowhere is that legacy more visible than in their lineup of air boxes.
More Than a Cover: What Arlen Ness Air Boxes Actually Do
An air box is the housing that encloses and directs filtered air into your engine's intake. The stock unit on most Harley-Davidson and Indian motorcycles is designed around cost and emissions compliance, not maximum airflow. Upgrading to an Arlen Ness air box restructures the entire intake path — improving volumetric efficiency, giving the engine a stronger throttle response, and delivering that satisfying induction growl that riders crave.
All Arlen Ness parts carry a hallmark of quality and give your bike that high-end custom look, but their air cleaners are their tour de force — equal parts sculptural masterpiece and engineering marvel. That philosophy extends directly to their air box designs, which are built to perform as impressively as they look mounted on the bike.
Signature Product Lines
Arlen Ness offers several distinct air box series, each with its own character and performance focus:
- Big Sucker Series — The Big Sucker is available in Stage 1 and Stage 2 configurations, making it one of the most versatile options in the lineup. It is designed to fit a wide range of Harley-Davidson platforms, from classic Twin Cam engines to modern Milwaukee-Eight motors.
- Monster Sucker — The Naked Monster Sucker Air Cleaner Kit takes an aggressive, open-look approach to ram-air style intake, maximizing the visual drama while feeding the engine a larger volume of cool, outside air.
- Inverted Series — The Drift Inverted Series flips conventional air cleaner geometry for a unique low-profile appearance that works especially well with blacked-out, minimalist custom builds.
- Velocity 90° Series — The Velocity 90° Air Cleaner Kit is designed to fit Indian Chief and Chieftain models from 2014 onward, as well as select Harley-Davidson Twin Cam applications, giving Indian riders access to the same level of Arlen Ness craftsmanship.
- Crossfire Series — The Crossfire Air Cleaner targets Harley-Davidson Milwaukee-Eight engines from 2017 onward, bringing a modern geometric design language to the newest generation of Big Twin powerplants.
Performance You Can Feel
Arlen Ness air boxes are engineered to work within a complete Stage 1 intake upgrade strategy. Riders who have switched from stock setups report that the Ness Ram intake takes in significantly more air than the stock or Stage 1 configuration. Because of this increased airflow, pairing an upgraded air box with a proper fuel tune is strongly recommended to keep the air-fuel mixture in the ideal range and protect engine components.
Whether you ride a classic Softail, a hard-touring bagger, or a modern Indian cruiser, Arlen Ness has an air box designed for your exact application. Explore the full Arlen Ness brand catalog or browse all motorcycle air boxes to find the right fit for your build.