Unifilter POLARIS MagNU m 500 99-02 ProComp2 ATV Air Filter
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Vehicles this filter fits
Part number NU 5503ST fits all of the vehicles below. Your vehicle is highlighted.
| Make | Model | Years |
|---|---|---|
| Polaris | MagNU m 500 | 1999-2002 |
| Polaris | Magnum 500 | 1999-2002 |
| Polaris | Diesel | 1999-2000 |
| Polaris | MagNU m 325 | 2000-2001 |
| Polaris | Magnum 325 | 2000-2001 |
| Polaris | Scrambler 1000 | 2016 |
| Polaris | Scrambler 500 | 1997-2013 |
| Polaris | Scrambler 800 | 2013-2018 |
| Polaris | Scrambler 850 | 2013-2018 |
| Polaris | Scrambler XP 1000 | 2016 |
| Polaris | Sportsman | 1996-2026 |
| Polaris | Sportsman 1000 | 2016 |
| Polaris | Sportsman 335 | 1999 |
| Polaris | Sportsman 450 | 2016-2017 |
| Polaris | Sportsman 450 Farmhand | 2017 |
| Polaris | Sportsman 500 | 1996-1999 |
| Polaris | Sportsman 500 RSE | 1999 |
| Polaris | Sportsman 570 | 2016-2017 |
| Polaris | Sportsman 570 SP | 2016 |
| Polaris | Sportsman 570 X2 | 2016 |
| Polaris | Sportsman 6x6 570 | 2017 |
| Polaris | Sportsman 850 | 2016-2017 |
| Polaris | Sportsman Touring 1000 | 2016 |
| Polaris | Sportsman Touring 570 | 2016 |
| Polaris | Sportsman Touring 850 | 2016-2017 |
| Polaris | Sportsman XP 1000 | 2016 |
| Polaris | Trailboss 325 | 2000 |
| Polaris | Worker 335 | 1999 |
| Polaris | Worker 500 | 1999 |
| Polaris | Xpedition 325 | 2000-2002 |
| Polaris | Xpedition 425 | 2000-2002 |
| Polaris | Xplorer 500 | 1997 |
ProComp2 ATV Air Filter. Suits: POLARIS MagNU m 500 99-02 Compatible years: 1999, 2000, 2001, 2002.
ProComp2 Dual-Stage Air Filters
Pro-level protection for serious enduro riders and weekend warriors alike
When the dust is thick and the trail is long, your engine needs more than a standard filter. Unifilter’s ProComp2 range is a true two-stage air filter built to keep fine dirt out of your engine in the harshest, dustiest conditions, without choking airflow.
The corrugated outer layer gives you 100% more surface area than a standard filter, so it traps more dirt and keeps breathing for longer. Behind it, a separate inner layer acts as a safety stage, catching anything that makes it through.
Unlike most dual-stage filters, the ProComp2’s layers aren’t bonded together. That means nothing restricts airflow between the stages, and you can pull the layers apart for a faster, more thorough clean.
Why riders choose ProComp2
- Two-stage filtration for maximum protection in extreme dust
- Corrugated outer layer with double the surface area of a standard filter
- Separate, non-bonded layers for better airflow and easier cleaning
- Improved airflow for crisper throttle response and more power
- Designed and made in Australia for Australian conditions
Independently tested airflow
In June 2023, Warspeed Industries independently tested seven air filters for the 2023 KTM 450SX on a SuperFlow SF-400 flow bench at 28 inches of water. The ProComp2 (AU1455ST) flowed 221.92 CFM, more than every competitor filter tested, including the KTM/Twin Air OEM filter, Twin Air Beach Race, Dirtlab, Motorex and Funnelweb.
The only filter that flowed more was our own single-stage [O2Rush]. That means you get dual-stage dust protection with no airflow penalty compared with the other brands tested.
Test conducted 20 June 2023 at 16°C ambient temperature. Chart axis starts at 215 CFM to show differences clearly.
Please note: ProComp2 filters are supplied dry and must be oiled before use. For best results, use Unifilter Filter Fix air filter oil.
Unifilter replacement automotive air filters are designed to give the ultimate in protection while delivering the best performance possible. Designed and made in Australia for Australian conditions.
Features
- Australian made & designed for Australian conditions
- Corrugated outer stage for increased surface area
- Fully serviceable 2 stage element
- Improved power, torque & fuel ecconomy
- Improved filtration
Service Products
Service Products - Filter Oil & Cleaner
Service Products - Filter Oil & Cleaner
Unifilter's foam filter oil is the only 100% mineral based filter oil left on the market. There simply is no better foam filter oil available. Mineral based foam air filter oil does not contain any harsh chemicals or solvents that can affect the foams and glues used to manufacture foam air filters. Mineral Based filter oils also have the added benifit of not drying out like synthetic foam filter oil can. If you want the best protection for your engine there is no better foam air filter oil available.
Unifilter's Foam Air Filter Cleaner is a Citrus based cleaner. Our Citrus Cleaner not only cleans all the dust and dirt out of you filter is also will not have any adverse effect on the foam.