K&N Engineering K&N Universal Custom Air Filter - Oval - Red - 8.813 L x 6.188in W x 2.25in H RT-3910
Product details
| Management number | 206308343 | Release Date | 2025/10/31 | List Price | $50.00 | Model Number | 206308343 | ||
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KN Custom Air Filter
Air Cleaner Assembly
The K&N RT-3910 Custom Air Filter converts the RK-Series Air Filter Assembly (RK-3909) with a taller K&N Air Filter and longer spacers. It is designed for Harley owners who need more air for better performance.
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