At DMG Motorsports, we present the Hiflofiltro HFA2904 Air Filter (part number 551-2904) — a precision-engineered original equipment replacement filter built to restore clean, efficient airflow to your Kawasaki's engine. Hiflofiltro has been producing OEM and aftermarket filtration since 1963, and this filter is manufactured to the same demanding standards used by major motorcycle manufacturers. Designed as a direct fit for the factory air box, it drops straight into your bike's existing housing with no modification, rejetting, or guesswork required, making it a smart, no-hassle choice for scheduled maintenance or a full engine refresh.

This filter uses Hiflofiltro's proven powerflow filtering media, engineered to trap contaminants while still allowing strong airflow to the engine — helping protect internal components from dirt and debris while supporting consistent performance. It is purpose-built for classic Kawasaki KZ1000 and Z1000 models, giving owners of these machines an affordable, high-quality alternative to OEM parts without sacrificing fit or function.

Features:

• Direct OE replacement designed to fit the factory air box with no modifications needed
• Top-quality powerflow filtering media developed for high-performance engines
• Fits Kawasaki KZ1000 A1-A4, B1-B4/LTD, C1-C4/C4A, D1-D3 (1977-1981) and Z1000 A1-A4 (1977-1981) and Z1000 D1/Z1R (1978)
• Interchanges with Kawasaki OEM part number 11013-063
• Manufactured by Hiflofiltro, a trusted name in motorcycle filtration since 1963
• Sold each

Fitment