K&N High Flow Air Filter for Polaris RZR 4 900 Side-by-Side
K&N High Flow Air Filter for Polaris RZR 4 900 Side-by-Side
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Description
K&N Powersports High-Flow Air Filter
Upgrade your machine’s performance with a K&N High-Flow Powersports Air Filter. Designed to increase airflow while providing superior filtration, these premium reusable filters help your engine breathe better for improved horsepower, throttle response, and overall performance.
Built with oiled cotton gauze media, K&N filters capture dirt and debris while allowing more air to reach the engine compared to traditional paper filters. The result is better performance and long-term reliability for motorcycles, ATVs, UTVs, and other powersports machines.
Unlike disposable filters, K&N air filters are washable and reusable, helping reduce maintenance costs over time. With proper cleaning and oiling, one filter can last for the life of your vehicle.
Key Features
High-flow design improves airflow and engine performance
Superior filtration protects your engine from dirt and debris
Washable and reusable for long-term value
Durable oiled cotton gauze construction
Direct OEM replacement for easy installation
Designed specifically for motorcycles, ATVs, UTVs, and other powersports applications
Why Choose K&N?
K&N is a global leader in high-performance filtration, trusted by riders and racers worldwide. Their powersports air filters are engineered to deliver maximum airflow without sacrificing engine protection, helping you get the most out of your ride.
Technical Specifications
- MFG. Part Number DU-9001
Vehicle Information
Polaris RZR 4 900 Side-by-Side (2014-2018)
The Polaris RZR 4 900, a robust side-by-side vehicle, was produced from 2014 to 2018. It features an 875cc ProStar 900 4-Stroke DOHC Twin Cylinder engine. Initially, the 2014 model offered 88 horsepower. From 2016 onwards, the power output was adjusted to 75 hp, a notable change in engine performance. In 2018, a significant evolution occurred with the model designation shifting to RZR S4 900 EPS. This "S4" version typically indicates a wider stance and enhanced suspension components, such as Fox Podium shocks, providing improved handling and increased off-road capabilities. While trims and color options varied over the years, the core platform remained consistent. FAQ:
Q: How can I ensure parts fit my RZR 4 900?
A: To guarantee compatibility, please use our year and edition selector on this page.
Maintenance
| Component | Interval | Details |
| Initial Break-In Service (Engine Oil & Filter) | 25 h or 1 month | Change engine oil and filter. |
| Initial Break-In Service (Air Filter) | 25 h or 1 month | Inspect and replace as necessary. Check installation and clean ducts. |
| Initial Break-In Service (Cooling System) | 25 h or 1 month | Inspect fluid level and check for leaks. Add coolant if needed. |
| Initial Break-In Service (General Lubrication) | 25 h or 1 month | Lubricate all fittings, pivots, and cables. |
| Engine Oil & Filter | After break-in: 800 km, 50 h or 6 months. Subsequently: 1 600 km, 100 h or 12 months. | |
| Drive Belt | Inspect and adjust: 1 600 km or 12 months. Inspect and replace if frayed/damaged: 800 km, 50 h or 6 months. | |
| Spark Plugs | Inspect: 100 h. Replace: 8 000 km or 500 h. | |
| Air Filter | Pre-ride inspection, replace if dirty. Inspect and replace: 1 600 km or 12 months. | |
| Coolant (Cooling System) | Inspect fluid level/leaks regularly. Inspect strength seasonally and pressure test yearly. Replace: 8 000 km or 500 h. |