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Air Filter

$ 24.09

In stock

Air Filter

Part #: NU-4089

Uni quality guaranteed.

Available for ship to store.


Free Shipping on New Part orders over $100

Air Filter

Product Specifications

Weight 0.56 lbs
Dimensions 8 × 4 × 4 in
Part Number

NU-4089

MPN

NU-4089

Brand

Uni

Product Description

Air Filter is available now from Knobtown Cycle, your Kansas City motorcycle parts specialists.

Key Features

  • DESIGNED TO FIT IN THE FACTORY AIR BOX EXACTLY LIKE ORIGINAL FILTER
  • THE BEST SELLING REPLACEMENT AIR FILTER FOR COMPETITION MOTORCYCLES AND ATVS
  • UNIQUE TWO STAGE DESIGN ALLOWS FOR EASY AND COMPLETE CLEANING
  • DUAL LAYER OF FOAM, CAN BE SERVICED SEPARATELY
  • THIN ULTRA SEAL BASE IS VIRTUALLY IMPOSSIBLE TO TEAR AND HAS A BUILT-IN “GREASE GROOVE”
  • USED BY FACTORY YAMAHA, KAWASAKI AND SUZUKI OFF-ROAD

Product Specifications

  • Part Number: NU-4089
  • Brand: Uni
  • Weight: 0.56 lbs

Available at Knobtown Cycle

Shop online or visit our Kansas City showroom. Fast shipping available on all orders! Free Ship to Store!

Part Locations

Location Available
Ashley (IN) 2
Elizabethtown (PA) 0
Boise (ID) 0
Midway (GA) 1
Fresno (CA) 0
Jessup (MD) 0
Midlothian (VA) 0
National Total 3

Stock levels last updated: March 1, 2026 5:07 PM

Professional Installation Available

Knobtown Cycle offers professional installation services. Contact us via a service request to learn more.


Thank you for Shopping at Knobtown Cycle!

When you shop with us, you’re not just buying motorcycle parts — you’re supporting a small, family-run business rooted right here in the heartland of America. Every order helps us keep riders on the road and fuels our passion for serving the motorcycle community.
From all of us at Knobtown Cycle, thank you for choosing local and riding with us.

Kit Fox – Owner Knobtown Cycle

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Need help with installation?  Our Service Department based in Kansas City, Missouri is here for you.  Fill out a Service Request and lets get you rolling!