Product images and videos are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.
Air and Fuel› Air Cleaners, Filters, Intakes and Components
UNIFILTER
UNI Filter 97-98 50 Air Filter
SKU: U01K NU-1601ST
Beginner — under 30 min
Overview
This filter features a unique dual-layer foam design that can be serviced separately, allowing for easy and complete cleaning. The thin ultra-seal base is durable and includes a built-in "grease groove" for a secure fit. It is used by factory Yamaha, Kawasaki, and Suzuki off-road teams.
Show original supplier description
Part #: NU-1601ST
Uni Filter Dirt Bike Foam Air Filters have been unsurpassed in both engine protection and overall performance for over 50 years. Their unique two-stage design produces more horsepower and more torque than any other air filter.
Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.
Fitment
Fitment Guaranteed
Don’t gamble
on fit.
Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.
Available on iOS & Android
Specifications
| Brand | UNIFILTER |
| Part Number | U01K NU-1601ST |
Videos
UNI Air Filters 101 - What Makes UNI a Great Air Filter Option Explained
How to clean a UNI with a non-removable cage
DR650 - Uni Filter - 2 Stage Air Filter
How to oil your foam air filter
UNI filter on R15 V2
LC200 | DUSTING Pt. 2 | Testing the UNIFILTER | Oil Filter | Toyota Landcruiser 200 series air box
Walker AIRSEP Service Video #102 (Air Filter Cleaning Procedure)
2023 Norden 901 Part 11 (DNA air filter and Rottweiler power plate)
How to Clean Your Motorcycle Air Filter
About MOTORMIA
Buy with Confidence
Returns & Fitment
Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.
View Full Return PolicyShipping
Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.
Free shipping over $200 in the continental US. Alaska, Hawaii, U.S. territories (Puerto Rico, U.S. Virgin Islands, Guam, American Samoa, and the Northern Mariana Islands), and international orders carry surcharges — most appear at checkout. Some exceptions (LTL freight, or suppliers who quote freight only after we place the order) won’t. In those cases we’ll reach out with the exact charge before your order moves forward.
View Full Shipping Policy