Twin Air Standard Air Filter for Kawasaki (151121)

The Twin Air 151121 Standard Air Filter is designed for Kawasaki powersports applications that demand dependable engine protection and consistent airflow. Its dual-bonded foam construction captures even the smallest dirt particles while allowing more air to pass through than two separate-layer filters, a performance advantage validated through flow-bench testing. This design helps support efficient engine breathing during trail rides, motocross sessions, and other demanding riding conditions.
The Twin Air filter is manufactured slightly smaller than the stock filter to make installation and removal easier. The reduced profile also increases the dead-air space surrounding the filter, which can contribute to improved airflow performance inside the airbox. Its practical design helps simplify routine filter service while maintaining the fit and protection riders expect from a replacement air filter.
A flat foam sealing ring provides a secure seat against the airbox and helps maintain a reliable seal, even when riding through rough terrain, dust, mud, and vibration. The Twin Air 151121 combines durable foam filtration with a service-friendly fit, making it a dependable replacement choice for Kawasaki motorcycles and off-road vehicles. Confirm application compatibility before installation to ensure proper fitment.

Features:

• Dual-bonded foam construction filters out very small dirt particles while maintaining strong airflow

• Flow-bench-proven design allows more airflow than two separate-layer filters

• Slightly smaller than the stock filter for easier installation and removal

• Increased dead-air space around the filter supports improved airbox performance

• Flat foam sealing ring securely seats against the airbox

• Designed to maintain a dependable seal in demanding riding conditions

• Brand: Twin Air

• Part Number: 151121

• Application: Kawasaki

Ships from Parts Unlimited.