K&N Engineering E-3988 Universal Oval Air Filter for Harley-Davidson RK Series
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Description
- Million Mile Limited Warranty®
- Million Mile Limited Warranty
The K&N Engineering E-3988 oval-shaped replacement air filter is designed specifically for RK Series air cleaner assemblies on Harley-Davidson motorcycles. Crafted to enhance both horsepower and acceleration, this filter ensures improved engine performance while maintaining excellent filtration capabilities. Its washable and reusable design allows for long-term use, providing a cost-effective solution for motorcycle enthusiasts seeking reliable airflow. The filter's durable construction and precise fit make it a perfect upgrade for your Harley-Davidson, helping to optimize engine efficiency and power output. Backed by the renowned K&N Million-Mile Limited Warranty, this air filter offers peace of mind and dependable performance over the long haul. With its durable materials and engineered design, the E-3988 is an ideal choice for riders who demand quality, longevity, and enhanced performance from their air filtration system.
Features:
- Designed for Harley-Davidson RK Series air cleaner assemblies
- Increases horsepower and acceleration
- Washable and reusable for long-term use
- Constructed for durability and precise fit
- Backed by the K&N Million-Mile Limited Warranty