1. Overview
This manual provides essential information for the proper installation, operation, and maintenance of your Polaris Genuine OEM ATV Fuel Pump, Part Number 2520227. This fuel pump is engineered to deliver unmatched performance and fit for your Polaris ATV, ensuring optimal fuel delivery to the engine.
Each Polaris Engineered service part undergoes extensive field testing and meticulous crafting to precisely match your machine's requirements. This design and testing process maximizes the lifespan and reliability of your vehicle's fuel system.

Figure 1: Front view of the Polaris ATV Fuel Pump Model 2520227.
2. Safety Information
WARNING: Improper installation or handling of fuel system components can lead to serious injury, fire, or explosion. Always follow safety precautions.
- Ensure the vehicle's engine is off and cool before beginning any work.
- Disconnect the battery to prevent accidental starting or electrical shorts.
- Work in a well-ventilated area to avoid inhaling fuel vapors.
- Keep open flames, sparks, and other ignition sources away from the work area.
- Wear appropriate personal protective equipment, including safety glasses and fuel-resistant gloves.
- Refer to your specific ATV's service manual for detailed safety procedures and torque specifications.
- Fuel is highly flammable. Handle with extreme care.
3. Installation Guidelines
The Polaris ATV Fuel Pump Model 2520227 is designed for vehicle-specific fit. Professional installation by a qualified technician is recommended. If performing installation yourself, ensure you have the necessary tools and expertise.
3.1 Pre-Installation Steps
- Gather Tools: Ensure you have all necessary tools, including wrenches, screwdrivers, hose clamps, and a fuel-safe container for draining fuel.
- Depressurize Fuel System: Consult your ATV's service manual for the correct procedure to safely depressurize the fuel system.
- Disconnect Battery: Disconnect the negative battery terminal to prevent electrical hazards.
- Access Fuel Pump: Locate and access the existing fuel pump on your ATV. This may require removing body panels or other components.
3.2 Removal of Old Fuel Pump
- Drain Fuel: Carefully drain any remaining fuel from the fuel lines and tank into an approved container.
- Disconnect Fuel Lines: Disconnect the inlet and outlet fuel lines from the old pump. Be prepared for residual fuel leakage.
- Disconnect Electrical Connector: Unplug the electrical connector from the old fuel pump.
- Remove Mounting Hardware: Remove the bolts or clamps securing the old fuel pump to its mounting bracket.
- Remove Old Pump: Carefully remove the old fuel pump from the vehicle.
3.3 Installation of New Fuel Pump
- Inspect New Pump: Visually inspect the new Polaris fuel pump (Part 2520227) for any damage.
- Mount New Pump: Secure the new fuel pump to the mounting bracket using the appropriate hardware. Ensure it is oriented correctly.
- Connect Electrical Connector: Plug in the electrical connector, ensuring a secure connection.
- Connect Fuel Lines: Reconnect the inlet and outlet fuel lines. Ensure all connections are tight and free of leaks. Use new hose clamps if necessary.
- Reinstall Components: Reinstall any body panels or components removed during access.

Figure 2: Polaris ATV Fuel Pump with a ruler for scale, showing its compact design.

Figure 3: Underside view of the fuel pump, highlighting connection points and mounting features.
4. Operating Instructions
The Polaris ATV Fuel Pump Model 2520227 operates automatically as part of your ATV's fuel system. Once correctly installed, it will deliver fuel from the tank to the engine as required. No manual operation is needed for the pump itself.
4.1 Post-Installation Check
- Reconnect Battery: Reconnect the negative battery terminal.
- Refill Fuel Tank: Add a small amount of fuel to the tank.
- Check for Leaks: Turn the ignition key to the ON position (without starting the engine) to allow the fuel pump to prime. Carefully inspect all fuel line connections for any signs of leakage.
- Start Engine: If no leaks are detected, start the engine and allow it to run for a few minutes. Re-check for leaks.
- Test Drive: Perform a short test drive to ensure proper vehicle operation and fuel delivery.
5. Maintenance
Regular maintenance of your ATV's fuel system is crucial for the longevity and performance of the fuel pump. While the fuel pump itself is a sealed unit and generally not serviceable, its proper function depends on the overall health of the fuel system.
- Fuel Filter Replacement: Regularly replace the fuel filter according to your ATV's service manual recommendations. A clogged fuel filter can strain the fuel pump.
- Use Clean Fuel: Always use clean, high-quality fuel to prevent contaminants from entering the fuel system and damaging the pump.
- Inspect Fuel Lines: Periodically inspect fuel lines for cracks, kinks, or signs of wear. Replace damaged lines promptly.
- Keep Fuel Tank Full: Avoid running the fuel tank consistently low, as this can cause the fuel pump to overheat or draw in sediment from the bottom of the tank.
6. Troubleshooting
If you experience issues with your ATV's fuel delivery, consult this basic troubleshooting guide. For complex problems, always seek assistance from a certified Polaris technician.
| Symptom | Possible Cause | Solution |
|---|---|---|
| Engine cranks but won't start | No fuel pressure, clogged fuel filter, faulty electrical connection to pump. | Check fuel level. Inspect fuel filter. Verify electrical connections to the fuel pump. Test for fuel pressure. |
| Engine stalls or runs rough | Intermittent fuel delivery, partially clogged fuel filter, low fuel pressure. | Replace fuel filter. Check fuel lines for kinks. Test fuel pressure. |
| Fuel leak detected | Loose connections, damaged fuel lines, faulty pump gasket. | Tighten all fuel line connections. Inspect fuel lines for damage and replace if necessary. If leak is from pump body, replace pump. |
| Unusual noise from fuel pump area | Pump cavitation due to low fuel, worn pump. | Ensure adequate fuel level. If noise persists, pump may be failing and require replacement. |
7. Specifications
Key specifications for the Polaris ATV Fuel Pump Model 2520227:
| Feature | Detail |
|---|---|
| Brand | Polaris |
| Model Number | 2520227 |
| Part Type | Fuel Pump |
| Fit Type | Vehicle Specific Fit (ATV) |
| Material | Alloy Steel |
| Item Weight | 3.2 ounces |
| Product Dimensions (L x W x H) | 16 x 10 x 1 inches |
| Inlet Connection Size | 0.38 Inches |
| Outlet Connection Size | 0.38 Inches |
| Operation Mode | Mechanical |
| Gas Type | Gasoline |

Figure 4: Top view of the fuel pump, showing the main body and connections.
8. Warranty and Support
As a Genuine OEM Part, the Polaris ATV Fuel Pump Model 2520227 is backed by Polaris's standard warranty for engineered parts. For specific warranty details, please refer to the official Polaris warranty documentation provided with your vehicle or available on the Polaris website.
For technical support, installation assistance, or warranty claims, please contact your authorized Polaris dealer or visit the official Polaris support website. Always provide your vehicle's VIN and the part number (2520227) when seeking support.
Video 1: Polaris Engineered Parts - Precision in Motion. This video highlights the rigorous design, testing, and manufacturing process behind Polaris genuine parts, ensuring quality and reliability.





