Universal air filter details
K&N Filters Universal Chrome Air Filter – 3-7/8" FLG x 6-3/4" B x 5-7/8" T x 2-3/4" H w/ 1/2" Vent (KNNRC-4840)
The K&N Filters Universal Chrome Air Filter – 3-7/8" FLG x 6-3/4" B x 5-7/8" T x 2-3/4" H w/ 1/2" Vent (KNNRC-4840) is engineered to provide high airflow and superior filtration for a range of custom applications. With its universal fit design, this air filter is ideal for vehicles requiring a non-standard air filter size. Designed for performance and durability, the chrome finish adds both function and style to your engine bay. This model fits a variety of intake setups, making it a great solution for performance upgrades or replacement needs.
Features and Specifications:
Flange Inside Diameter: 3-7/8 inches
Base Outside Diameter: 6-3/4 inches
Top Outside Diameter: 5-7/8 inches
Filter Height: 2-3/4 inches
Flange Type: Offset
Flange Offset: 0.375 in (10 mm)
Air Filter Shape: Round
Top Material: Chrome
Engineered power: Increases horsepower, improves acceleration, and enhances overall engine performance.
Multi-layer filtration: Four layers of premium cotton gauze trap harmful contaminants effectively.
Durable build: Rugged materials and advanced construction ensure long-lasting performance.
Low maintenance: Cleans every 75,000 miles or approximately every 5 years under normal driving.
Easy install: Pre-oiled and ready for quick, hassle-free installation.
Universal fit: Compatible with a wide range of vehicles and applications.
Eco-friendly: Reusable design reduces landfill waste from disposable filters.
Product identification
- Brand: K&N Filters
- Model / MPN: KNNRC-4840




