Universal air filter details
K&N Filters Universal Air Filter – 5"FLG, 6-1/2"B, 4-1/2"T, 4-1/8"H (KNNRU-5163XD)
The K&N Filters Universal Air Filter – 5"FLG, 6-1/2"B, 4-1/2"T, 4-1/8"H (KNNRU-5163XD) is engineered to support high airflow and efficient filtration for various performance needs. This round, tapered universal air filter is ideal for custom applications or as a replacement in aftermarket intake systems. Featuring a washable, reusable cotton gauze media, it helps increase engine protection while maintaining optimal flow. Its dimensions make it a versatile option for automotive and industrial engines alike.
Features and Specifications:
Air Filter Shape: Tapered Conical
Air Filter Material: Cotton Gauze
Air Filter Color: Red
Flange Inside Diameter: 5 inches
Base Outside Diameter: 6.5 inches
Top Outside Diameter: 4.5 inches
Filter Height: 4.125 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-5163XD




