Honda Fuel Pump Assembly 16700 HR3 A21 For TRX420 TRX500 TRX520 Foreman 500 Rancher 420 2014 To 2021 Replacement Part Delivers Consistent Fuel Delivery For Smooth Starts And Reliable Engine Performance

Premium fuel pump module for TRX 420/500/520 (1 pc)
✔️ OE-grade 16700-HR3-A21 fuel pump fits 2014-2021 TRX420/500/520

Replace worn fuel pump with this OE-grade module, designed to fit a range of TRX series ATVs. It delivers consistent fuel to the engine for smooth starts and reliable performance across model years.

✅ Direct replacement with same height as factory unit
✅ Includes all required components for a complete install
✅ Draws fuel from tank, pressurizes, and feeds to engine
✅ Restores steady fuel pressure and improves cold starts
✅ Fits 2014-2021 TRX420/500/520, Foreman 500, Rancher 420 models

💡 What is a fuel pump module used for in ATV engines? A fuel pump module coordinates fuel delivery by drawing fuel from the tank, pressurizing it, and delivering it to the fuel rail for consistent engine performance. - Ensures consistent fuel pressure to the injector rail
- Draws fuel from the tank, pressurizes it, and feeds the system
- Helps prevent stalling during acceleration and cold starts