K&N
K&N KA-4018 Motorcycle Replacement Air Filter for Select 2018-2026 Kawasaki Models
K&N KA-4018 Motorcycle Replacement Air Filter for Select 2018-2026 Kawasaki Models
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K&N KA-4018 Motorcycle Replacement Air Filter.
K&N's high-flow air filters are available as a replacement for your stock motorcycle air filter element. They are custom engineered to fit your specific application and are designed to provide low restriction and increased performance, while providing excellent engine protection for your motorcycle.
Key Features
- Pleated cotton media provides a large filtration area offering low restriction, high-capacity and long service intervals.
Fits These Vehicles
Fits 1 make, 2018-2026 — click to view all 23 models
- Fits 2025-2026 Kawasaki Eliminator 500 451
- Fits 2025-2026 Kawasaki Eliminator 500 SE 451
- Fits 2025-2026 Kawasaki KLE500 500
- Fits 2025-2026 Kawasaki KLE500 SE 500
- Fits 2025-2026 Kawasaki Ninja 500 451
- Fits 2025-2026 Kawasaki Ninja 500 SE 451
- Fits 2024-2026 Kawasaki Z500 451
- Fits 2025-2026 Kawasaki Z500 SE 451
- Fits 2025-2026 Kawasaki ZX4R 399
- Fits 2025-2026 Kawasaki ZX4RR 399
- Fits 2023-2024 Kawasaki Ninja 400 399
- Fits 2023-2024 Kawasaki Ninja 400 Performance 399
- Fits 2023-2024 Kawasaki Z400 399
- Fits 2023-2024 Kawasaki Z400 Performance 399
- Fits 2018-2023 Kawasaki EX400 Ninja 399
- Fits 2019-2023 Kawasaki EX400 Ninja ABS 399
- Fits 2020, 2022-2023 Kawasaki EX400 Ninja ABS KRT Ed. 399
- Fits 2020, 2023 Kawasaki EX400 Ninja KRT Edition 399
- Fits 2023 Kawasaki Ninja 400 Sport 399
- Fits 2019-2021, 2023 Kawasaki Z400 ABS 399
- Fits 2023 Kawasaki Z400 Sport 399
- Fits 2020-2022 Kawasaki ER400 Z400 ABS 399
- Fits 2019 Kawasaki EX400 Ninja ABS SE 399
Confirm the model year, engine and the part number against your vehicle before ordering.
K&N warrants this product to be free from defects in materials and workmanship for the lifetime of the product. Coverage applies only to the original purchaser and is non-transferable. Coverage excludes damage from transportation, storage, improper use, failure to follow the product instructions or perform preventive maintenance, modifications, unauthorized repair, normal wear and tear, racing, competition or off-road use. Claims are handled directly by K&N customer service.
Specifications
- Brand: K&N
- Manufacturer Part Number: KA-4018
- Type: Air Filters
- Manufacturer Warranty: Lifetime Limited (original purchaser)
- Condition: New
Images are for illustrative purposes. The product you receive may differ in finish or packaging from the photograph.
WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
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Manufacturer's Warranty — K&N
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Manufacturer's Warranty — K&N
K&N warrants its products against defects in materials and workmanship. Washable replacement air filters, washable cabin air filters, performance air intake systems and home HVAC filters carry a lifetime limited warranty; oil filters, disposable and universal air filters and automotive accessories are covered for one year from the date of purchase. Coverage applies to the original purchaser and excludes damage from improper use, failure to perform maintenance, modification, normal wear, racing, competition or off-road use. Claims are handled directly by K&N customer service.
Warranty terms are set by the manufacturer and may change. Full details and claims are handled directly by K&N. Contact us if you need help with a warranty claim.

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