K&N KA-9018 High-Flow Air Filter for 2018-2025 Kawasaki Z900RS / ZR900

Vehicle Fitment

• 2018-2025 Kawasaki Z900RS (all sub-models: base, ABS, SE, 50th Anniversary, etc.)
• 2018-2025 Kawasaki ZR900 / Z900RS (standard / Cafe / ABS / SE variants) as specified by manufacturer

Fitment Notes

• Drop-in replacement for OEM air filter - no airbox modification required.
• Pre-oiled, washable & reusable cotton-gauze panel filter with application-specific sealing bead for exact fit.
• No fuel-management or engine tuning needed for stock engine configuration.

Features

• Pleated multi-layer cotton gauze media - enhances airflow and improves throttle response.
• Large filtration area for effective dirt trapping and long service intervals compared to stock filters.
• Washable and reusable design - reduces long-term maintenance cost and waste.
• Pre-oiled and ready to install - no need for pre-treatment before installation.
• Application-specific sealing bead ensures proper airbox sealing and prevents ingestion of unfiltered air.
• Improved engine breathing supporting potential gains in horsepower and torque under throttle load.
• Durable construction suitable for street, commuting, or sport riding conditions.
• Backed by K&N's lifetime limited warranty - built to last the life of the motorcycle.

Specifications

• Filter Shape: Panel
• Filter Media: Multi-layer cotton gauze
• Outside Dimensions (L x W): 310 mm x 191 mm (≈ 12.188 in x 7.5 in)
• Height (Thickness): 33 mm (≈ 1.313 in)
• Filter Weight: ~0.5 kg
• Washable & Re-oilable: Yes
• Recommended Re-Oiling Amount: ~1.11 oz (33 ml)
• Package Contents: 1x air filter element

Included Components

• 1x K&N KA-9018 High-Flow Air Filter

Product Description

The K&N KA-9018 is a high-flow replacement air filter engineered for recent generation Kawasaki Z900RS and ZR900 / Z900RS motorcycles (2018-2025). It replaces the stock disposable air filter with a pleated cotton-gauze panel that offers a larger filtration area, providing improved airflow for better throttle response, more efficient engine breathing, and potential performance gains - while still maintaining reliable filtration and engine protection under normal street and commuting conditions. The multi-layer cotton-gauze media traps dust and contaminants effectively, making it particularly useful for riders in dusty or dirty riding environments.

Installation is straightforward: KA-9018 drops directly into the OEM airbox using its application-specific sealing bead - no modifications or tuning required for stock engines. It comes pre-oiled and ready to install, and thanks to its washable and reusable design, it reduces long-term maintenance costs and environmental waste compared to disposable filters. For riders seeking a durable, performance-friendly, low-maintenance air filter upgrade for their Z900RS or ZR900 - KA-9018 is a reliable choice.