K&N Filters universal rubber air filter details
K&N Filters Universal Rubber Air Filter – 1-15/16" 20° Flg x 3-1/2" OD x 4" H (KNNRU-1400)
The K&N Filters Universal Rubber Air Filter – 1-15/16" 20° Flg x 3-1/2" OD x 4" H (KNNRU-1400) is a high-performance vehicle solution requiring a compact, angled air filter. Featuring a 20-degree flange, 3-1/2-inch outer diameter, and 4-inch height, it fits a wide range of universal air intake systems. Designed to improve airflow and engine protection, this rubber-based air filter is ideal for custom setups or performance upgrades that demand reliability and durability under various driving conditions.
Features and Specifications:
Inlet Diameter: 1-15/16 inches
Flange Angle: 20 degrees
Outside Diameter: 3-1/2 inches
Filter Height: 4 inches
Engineered Power: Advanced air filter media enhances horsepower, acceleration, and overall engine performance.
Superior Protection: Four layers of premium cotton gauze with a specialized tacking agent trap harmful contaminants effectively.
Durable Construction: Built with high-quality materials and precision manufacturing for long-lasting performance.
Long Service Life: Under normal highway conditions, it requires cleaning only every 75,000 miles, equivalent to about five years.
Easy Installation: Pre-oiled and ready to use, making it a simple and cost-effective upgrade for better performance.
Versatile Fitment: Designed for compatibility with a wide range of applications.
Eco-Friendly: Reusable design helps reduce landfill waste from disposable filters.
Product identification
- Brand: K&N Filters
- Model / MPN: KNNRU-1400




