Low Profile Filter 14x4 Performance Washable

The Low Profile Filter 14x4 Performance Washable by Walker Engineering is a premium reusable air filter element engineered for serious enthusiasts and mechanics seeking maximum airflow without sacrificing engine protection. This 14-inch diameter, 4-inch tall design fits compact and mid-size engine bays where conventional tall filters create clearance conflicts or restrict intake manifold routing. Whether you're building a street-performance engine, upgrading an older vehicle, or managing space-constrained engine compartments, this low-profile configuration delivers the filtration efficiency you need in a footprint that actually fits your application.

Constructed from reusable cotton media with a blue-dyed finish, the Low Profile Filter 14x4 Performance Washable eliminates disposable paper elements and their recurring costs. The cotton construction provides superior dirt-holding capacity and lower restriction compared to OEM paper, meaning cleaner air delivery and measurably quicker throttle response once installed. The washable design means you clean it with compressed air or specialized filter cleaning solution, inspect the media for tears or damage, and reinstall—a process that extends component life to 100,000+ miles or more depending on driving environment. This reusability makes it ideal for track-day builds, daily drivers in dusty climates, or any application where filter changes would otherwise demand frequent maintenance visits.

This filter suits builders and mechanics modifying carbureted, naturally aspirated, and turbocharged engines where OEM air box geometry or intake ducting calls for a compact element. The 16.35 x 5.9 x 17.8-inch package dimensions allow drop-in fitment in most aftermarket performance intake systems and custom fabricated air boxes. Before installation, verify your intake tube ID matches the 14-inch diameter and confirm hood clearance with the 4-inch height; low-profile filters require precise mounting to prevent vacuum leaks or filter seating issues. For maximum engine longevity, inspect and clean the filter every 10,000–15,000 miles under normal conditions, or every 5,000 miles if operating in high-dust environments such as dirt roads or sandy terrain.