1. ATV Fuel Pumps For Sale
  2. sku: 5484504284309751
  3. BFO IESC73

BFO IESC73 Fuel Pump Module

fits model: 850, 550, 570, 800, Sportsman, Ranger. make: Polaris. year: 2013–2014.

Iesc73 Bfo Fuel Pump Module Assembly For Polaris Sportsman 850 550 13-14 Ranger 570 800

( Brand: Bfo ), ( Manufacturer Part Number: IESC73 ), ( California Prop 65 Warning: California Prop 65 Warning ), ( Country Of Origin: China ), ( Fitment Type: Direct Replacement ), ( Fuel Pump Drive Type: Electrical ), ( Fuel Pump Type: Fuel Pump Module Assembly ), ( Fuel Type: Gasoline ), ( Machine Type: Atv, Utv / Sxs ), ( Manufacturer Warranty: 2 Years ), ( Note: No Instruction Included ), ( Notice: This Is Aftermarket Replcement Part ), ( Oe/oem Part Number: 2204401, 2204402, 2204852, 2204945, 2521307 ), ( Type: Fuel Pump ), ( Voltage: 12 V )

Review BFO Fuel Pump Module Assembly Polaris fits SPORTSMAN RANGER 850 550 570 800 2013–2014

The **BFO IESC73 Fuel Pump Module** is a high-performance, precision-engineered replacement designed specifically for Polaris Sportsman models from the 2013 to 2014 generations, including the **850, 550, Ranger 570, and Ranger 800**, as well as the **IESC73-equipped models** of the Polaris Sportsman 850. This fuel pump module is a direct-fit, OEM-quality upgrade that ensures optimal fuel delivery, improved throttle response, and enhanced engine efficiency critical components for maintaining peak performance in demanding off-road and utility applications. Crafted from durable, corrosion-resistant materials, the BFO IESC73 is engineered to withstand the harshest conditions, including extreme temperatures, heavy loads, and prolonged use in dusty or wet environments, which are common in off-road and agricultural settings. The module features a **high-flow, electronically controlled fuel pump** that delivers consistent pressure and volume, reducing the risk of fuel starvation, clogging, or erratic engine behavior common issues that plague standard or aftermarket pumps over time. Its **sealed, self-lubricating design** minimizes wear and tear, extending the lifespan of the pump while maintaining reliability, even under high-demand conditions. The BFO IESC73 also incorporates **advanced filtration technology** to prevent debris from entering the fuel system, protecting both the pump and the engine from potential damage. Installation is straightforward, thanks to the module s **direct-fit compatibility** with the original equipment wiring harness and mounting points, ensuring a clean, hassle-free swap that requires minimal modification. Whether you're upgrading for better fuel efficiency, troubleshooting persistent engine issues, or simply ensuring long-term reliability in your Polaris Sportsman, the BFO IESC73 Fuel Pump Module delivers a robust, dependable solution that meets or exceeds factory specifications. Built to perform under pressure, this module is an essential investment for operators who demand nothing less than premium performance from their off-road or utility vehicle.

### **Pros and Cons of buying a BFO IESC73 Fuel Pump Module for Polaris Sportsman (2013-2014) and Ranger (570/800) Models**

#### **Pros:**

1. **Compatibility** The BFO IESC73 is specifically designed for the 2013-2014 Polaris Sportsman 850/550 and Ranger 570/800 models, ensuring a direct fit without major modifications.

2. **Improved Fuel Flow** Replaces the stock fuel pump with a more efficient electric inline pump, reducing fuel starvation issues, especially in cold weather or when running at higher RPMs.

3. **Better Cold-Weather Performance** Electric fuel pumps eliminate priming difficulties common with diaphragm pumps in cold conditions, making starts more reliable.

4. **Durability** BFO components are generally built to last longer than OEM parts, reducing the likelihood of premature failure.

5. **Easier Installation** The inline design simplifies installation compared to some aftermarket alternatives, requiring fewer modifications.

6. **Reduced Fuel Sloshing** The inline pump helps maintain consistent fuel delivery, preventing airlocks and improving throttle response.

7. **Warranty Coverage** BFO offers a warranty on their products, providing some peace of mind against defects.

#### **Cons:**

1. **Cost** The BFO IESC73 is more expensive than an OEM replacement pump, though it may save money in the long run by preventing further fuel system issues.

2. **Installation Complexity** While not overly difficult, replacing the fuel pump requires careful handling of fuel lines, electrical connections, and possibly fuel tank modifications (if not already pre-drilled).

3. **Potential Leaks** Improper sealing during installation can lead to fuel leaks, especially around the pump s mounting points or fuel line connections.

4. **Compatibility with Modifications** If the vehicle has been heavily modified (e.g., high-flow air intakes, turbocharging, or aggressive tuning), the stock fuel system may still struggle, requiring additional upgrades (e.g., a larger fuel tank or upgraded injectors).

5. **Learning Curve for DIY Installers** Those unfamiliar with fuel system work may need to research or seek professional help to ensure a clean installation.

6. **Limited Aftermarket Support** Unlike some more popular aftermarket brands, BFO may have fewer readily available parts or community resources if issues arise.

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### **Conclusion**

The **BFO IESC73 fuel pump module** is a solid upgrade for the specified Polaris models, particularly for owners experiencing fuel starvation, cold-start issues, or reliability concerns with their stock pump. Its electric inline design offers clear advantages in performance and cold-weather operation, making it a worthwhile investment for those looking to improve their fuel system s efficiency and longevity.

However, the decision should consider whether the upfront cost is justified by the expected benefits. If the vehicle is heavily modified or used in extreme conditions (e.g., high-altitude or aggressive off-roading), additional fuel system upgrades may still be necessary. For most stock or lightly modified machines, the BFO pump provides a significant improvement over the OEM unit.

### **Recommendation**

If you are experiencing **frequent stalling, hard starting, or fuel-related performance issues**, the **BFO IESC73 is a strong recommendation**. Ensure you follow the installation instructions carefully, use the correct fuel lines and seals, and consider consulting a professional if unsure about the process. For owners who prioritize reliability and cold-weather performance, this upgrade is well worth the investment. If the vehicle is already heavily modified or used in extreme conditions, pair this upgrade with a fuel system tune or additional components (e.g., a larger fuel tank) for optimal results.

Details:

Fast Shipping. Fuel Type: Gasoline. Please double confirm the fitment details before purchasing. Always the correct part.

For Polaris Ranger 570 2014 -2018. OE/Part Number. For Polaris M1400 2015 -2016. Manufacturer.

Quick, Simple. For Polaris Ranger 800 2013 - 2017. Package Included. Drive Type: Electrical.

For Polaris Ranger 500 2017 -2018.guaranteed Fitment.

specifications fuepumintak:

  • for models: 850, 550, 570, 800, Sportsman, Ranger
  • for makes: Polaris
  • for years: 2013-2014
  • brand: Bfo
  • mpn: Iesc73
  • california prop 65 warning: California Prop 65 Warning
  • country of origin: China
  • fitment type: Direct Replacement
  • fuel pump drive type: Electrical
  • fuel pump type: Fuel Pump Module Assembly
  • fuel type: Gasoline
  • machine type: Atv, Utv / Sxs
  • manufacturer warranty: 2 Years
  • note: No Instruction Included
  • notice: This Is Aftermarket Replcement Part
  • oe/oem part number: 2204401, 2204402, 2204852, 2204945, 2521307
  • type: Fuel Pump
  • voltage: 12 V

shipping fuepumintak:

  • service: FedEx Ground / FedEx Home Delivery
  • class: Standard
  • transit: 2-4 Days
  • type: Fixed
  • carrier: FedEx
  • cost: $0.00

general fuepumintak:

  • ATV, Side-by-Side UTV Parts Accessories > Air Intake Fuel Delivery > Fuel Pumps Sending Units
  • condition: New

payments fuepumintak:

  • credit card: Mastercard
  • wallet: Google-pay
  • other

offer fuepumintak:

  • best offers: True
  • started: May 11, 2026
  • availability: In Stock
  • options: Ship-to-home
  • sold: 0

returns fuepumintak:

  • paid by: Seller
  • time: 30 Days
  • policy: Returns Accepted

seller fuepumintak:

  • rating: 99.7%
  • # reviews: 38474
  • city: Dayton, New Jersey
for models: 850, 550, 570, 800, sportsman, ranger, for makes: polaris, for years: 2013-2014, california prop 65 warning: california prop 65 warning, country of origin: china, fitment type: direct replacement, fuel pump drive type: electrical, fuel pump type: fuel pump module assembly, fuel type: gasoline, machine type: atv, utv / sxs, manufacturer warranty: 2 years, note: no instruction included, notice: this is aftermarket replcement part, oe/oem part number: 2204401, 2204402, 2204852, 2204945, 2521307, type: fuel pump, voltage: 12 v,
category: atv parts > atv, side-by-side utv parts accessories > air intake fuel delivery > fuel pumps sending units, sku: 5484504284309751,
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