Description
The K&N Filters Replacement Air Filter for Yamaha YFM250/YFM400 (KNNYA-4001) is engineered to deliver reliable performance and improve airflow in your ATV. Designed for direct replacement, this filter fits seamlessly into YFM250 and YFM400 models, offering dependable protection from dirt and debris. Ideal for both everyday riders and off-road enthusiasts, this air filter supports better engine efficiency and long-term durability. Whether you’re maintaining or upgrading, this part helps your machine perform at its best.
Features and Specifications:
- Vehicle Fitment: Fits Yamaha YFM250 and YFM400 models.
- Height: 5.875 in (149 mm)
- Inside Diameter: 1.938 in (49 mm)
- Outside Diameter: 3.938 in (100 mm)
- Weight: 0.6 lb (0.3 kg)
- Performance upgrade: Increases horsepower and acceleration for enhanced engine response.
- Efficient filtration: Pleated cotton media maximizes surface area for low airflow restriction and extended service intervals.
- Superior protection: Multi-layer woven cotton gauze delivers high filtration efficiency.
- Direct fit: It is designed to drop into the OEM air box with an application-specific sealing bead for a secure fit.
- No tuning required: Delivers performance gains without fuel management modifications.
- Reusable design: Washable and reusable; most filters come pre-oiled and ready for use.
- Warranty coverage: Backed by a one-year limited warranty.
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