Uni Filter Two-Stage Air Filter for Honda (NU-4137ST)

Improve engine air filtration with the UNI Filter NU-4137ST air filter, designed for a precise fit in the stock Honda airbox. This reusable filter helps protect the engine from dirt and debris while supporting consistent airflow and reliable performance. Its OEM-style fit allows straightforward installation without requiring modifications to the original airbox.
The two-stage air filter design separates into components for thorough cleaning and maximum airflow. When maintenance is needed, wash the filter with grease-cutting dishwashing detergent, allow it to dry completely, and re-oil it before reuse. This serviceable construction provides a practical alternative to disposable filters and helps maintain filtration performance over the life of the filter.
Manufactured in the USA, the UNI Filter NU-4137ST combines durable construction with efficient dirt-stopping capability. Its airflow-focused design supports engine operation in demanding riding conditions while the reusable element makes routine filter care simple. Choose this UNI Filter replacement air filter for dependable fitment, easy maintenance, and long-term service.

Features:

• Brand: UNI Filter

• Part Number: NU-4137ST

• Application: Designed for Honda models using the compatible stock airbox

• Reusable Design: Clean, oil, and reuse the filter for continued service

• Two-Stage Construction: Separates for maximum airflow and thorough cleaning

• Airflow Performance: Designed to support strong airflow and reliable engine performance

• OEM-Style Fit: Installs in the stock airbox like the original filter

• Maintenance: Clean with grease-cutting dishwashing detergent and re-oil before reuse

• Country of Origin: Made in the USA

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