2009 Can-Am Renegade 800R Fuel Pump: Complete Replacement Guide and Best Options

The bottom line up front: If you own a 2009 Can-Am Renegade 800R and your fuel pump is failing, you do not need to spend hundreds of dollars on a dealership replacement. You have several solid aftermarket options, including complete pump assemblies, standalone high-performance pumps, and budget-friendly rebuild kits. The most important thing is to match the correct OEM part number (typically 703500766 or 703500781) and confirm your specific submodel before ordering. For most riders, a complete fuel pump assembly from a reputable brand offers the best balance of reliability, easy installation, and cost savings compared to OEM.

Why the 2009 Renegade 800R Fuel Pump Fails

The 2009 Can-Am Renegade 800R uses an in-tank electric fuel pump assembly that sits inside the gas tank. Over time, this pump can fail for a few common reasons:

  1. Contamination and debris – Dirt, rust, or old fuel residue can clog the strainer or damage the pump internals. In one documented case, a Renegade 800R was running at only 12 psi because the filter was nearly solid with crud, and the tank was extremely dirty. After cleaning and installing a new pump, the fuel pressure returned to the proper 50 psi range. That same owner found dark particles in the pressure regulator along with lighter debris, showing how much junk can accumulate inside the system. In many cases, simply cleaning the regulator and replacing the pump solves low-pressure problems. For model-year 2009–2011 units, this kind of contamination often comes from a failing gas cap gasket that lets moisture and dirt into the tank. Checking the gas cap seal is an important preventive step whenever you service the fuel system.

  2. Normal wear – Electric fuel pumps have brushes and commutators that wear out with miles and years. After 15+ years, the original pump in a 2009 Renegade 800R is well past its expected service life. Even if yours still works, the flow rate may have dropped, which causes hard starts, sputtering, and poor throttle response.

  3. Ethanol fuel damage – Modern gasoline blended with ethanol can be harder on older fuel system components. Seals and hoses may degrade, and the pump itself can run hotter. Many aftermarket pumps today, including those from KEMSO, are specifically designed to handle both gasoline and E85 ethanol blends, which gives you extra peace of mind if you regularly use ethanol fuel.

Key Symptoms of a Failing Fuel Pump

You should replace the fuel pump on your 2009 Can-Am Renegade 800R if you notice any of these warning signs:

  • Hard starting or long cranking – The engine turns over but takes longer than usual to fire.
  • Loss of power under load – The ATV feels sluggish, especially when climbing or accelerating hard.
  • Sputtering at speed – The engine hesitates or stumbles during steady throttle.
  • Low fuel pressure – A healthy Renegade 800R should run around 50 psi. If you check pressure and see numbers in the 12–30 psi range, the pump or regulator is likely the culprit.
  • Noise from the tank – A whining or buzzing sound from the fuel tank area often indicates a pump that is struggling.
  • Check engine light – Some riders get a fuel pressure related code, especially on later EFI models.

If you are experiencing any combination of these symptoms, testing the fuel pressure first is a smart move. A fuel pressure gauge is inexpensive and gives you a clear diagnosis before you spend money on parts. The rider who documented his own replacement confirmed that checking pressure is worth the effort because it can help you identify a dirty regulator versus a dead pump. He found debris blocking the regulator, cleaned it out, and the bike ran properly at 50 psi after installing a new pump.

Factory Part Numbers and Compatibility

Before ordering any replacement, verify which OEM part number your 2009 Renegade 800R uses. Most sources agree on these numbers:

  • 703500766 – This is the most commonly referenced OEM pump assembly for the 2009–2011 Renegade 800R and many Outlander models in the same years.
  • 703500781 – A service replacement number used for the same pump assembly in many applications.
  • 709000194 and 709000245 – Also listed as compatible OEM numbers, sometimes appearing in different years or submodels.
  • 709000312 – Occasionally listed as another interchangeable number for the same pump assembly family.

The good news is that the fuel pump used in the 2009 Renegade 800R is shared across many Can-Am models. Multiple aftermarket suppliers list the same pump assembly (703500766) as fitting:

  • Can-Am Outlander 400/500/650/800R (2009–2012)
  • Can-Am Outlander Max 400/500/650/800R (2009–2012)
  • Can-Am Renegade 500 (2009–2012)
  • Can-Am Renegade 800R (2009–2011)
  • Can-Am Renegade 800R XXC (2009–2011)

If you have a 2009 Renegade 800R EFI Standard, X, or XXC submodel, the same pump assembly should work, but always double-check the plug configuration. Most aftermarket assemblies use a 4-pin connector, and you should verify that your bike’s electrical harness matches before buying.

Replacement Options Available for the 2009 Renegade 800R

You have four practical paths to fix your fuel pump, each with different trade-offs in price, effort, and reliability.

1. Complete Fuel Pump Assembly (Drop-in Replacement)

A complete assembly includes the pump, strainer, fuel level float, seal, and sometimes the wiring connector. This is the easiest option because you remove the old assembly and install the new one without any disassembly. You simply pull the old unit, transfer any clips or hoses, and drop in the replacement. This option costs around $45–$165 depending on brand and seller.

Pros: No need to rebuild anything; fastest install; all components are new.
Cons: More expensive than a bare pump; quality varies by brand.

Several suppliers sell aftermarket assemblies that replace the 703500766 and related numbers. Component Authority lists a pump assembly kit for about $164 SGD (roughly $120 USD) that covers Can-Am Outlander and Renegade models from 2009 to 2012. Another seller on the OIA platform offers a similar assembly for around $62.99, and it includes the fuel pump, seal ring, 4-pin plug, strainer, and float. That listing specifically warns that the float arm may ship detached to prevent damage in transit, which is a small but useful detail to know before installation.

EZAPEX also sells an upgraded assembly that fits the Renegade 800R 2009–2015, and they replace the same OEM numbers plus 471022 and 709000362. This option claims a lifetime warranty, which is uncommon at this price point. If you are concerned about long-term support, that kind of warranty is worth considering.

2. Bare High-Performance Pump (Rebuild Your Existing Assembly)

If your current assembly is still in good shape except for the pump itself, you can buy just the pump and rebuild the module. This is the most cost-effective path and still delivers excellent results. The KEMSO 13803 is a popular high-performance replacement for the Can-Am Renegade 800/800R from 2007–2015. It delivers 200 liters per hour at 43 psi and operates at 43–68 psi, which is more flow than the stock pump. That extra margin helps if you have any additional fuel demand or want to be sure the pump is not the weak link. The kit includes the pump, gradient density fuel strainer, flex hose, tank seal, Viton grommets, sealing ring, rubber hose, rubber base, wiring connector, crimp connectors, hose clamps, and zip ties. This gives you everything you need to rebuild the assembly without buying extra parts. The pump body diameter is 3.8 cm and overall length is 11.5 cm, so it fits inside the standard Can-Am in-tank module.

KEMSO pumps are individually tested and come with a lifetime warranty, which we will discuss in more detail later. This is an excellent choice for riders who want a performance upgrade while saving money compared to a full assembly.

Pros: Lower cost; performance upgrade; lifetime warranty with KEMSO.
Cons: Requires basic mechanical skill to disassemble and rebuild the module.

A forum member who completed this exact job on an 800R used a bare aftermarket pump and saved a significant amount compared to the $250 OEM replacement. The stock pump and the aftermarket pump were slightly different in shape, but the differences did not matter for fitment. The key is to slide the plastic plug and washer onto the new pump even if it does not have barbs, because the assembly needs those parts to seal properly. He also emphasized cleaning the regulator while you are in there, because debris in the regulator can cause low pressure even with a new pump.

3. Budget Pump Only (No Strainer or Hardware)

Some sellers offer a bare pump without the strainer, hoses, or connectors. These are the cheapest option, often under $30, but they require you to reuse your existing hardware or buy extra parts separately. ATV-Plus, for example, offers a New Aftermarket Can-Am Replacement Fuel Pump that fits Renegade 800R 2009–2011 for $26.95. It replaces OEM numbers 703500771, 703500766, 709000194, and 709000245. The dimensions are about 4 3/8 inches overall length, 2 1/2 inches for the metal pump body, and 1 1/2 inches diameter, with 3/8-inch inlet and outlet barbs. The kit does not include a filter, and they call that out explicitly. You would need to transfer your existing strainer or buy a new one. For a garage tinkerer who already has the right hoses and clamps, this is a low-risk way to get the machine running again. But if you want a clean rebuild with all new wear items, the complete kit is safer.

Pros: Lowest upfront cost; simple direct pump swap.
Cons: No filter or hose included; may need additional parts; shorter warranty.

4. Professional Installation

If you are not comfortable working inside the fuel tank, find a local mechanic who has experience with Can-Am ATVs. The pump is inside the tank, and you must remove the assembly carefully to avoid bending the float arm or damaging the wiring. A professional will typically charge 1–2 hours of labor on top of the parts cost. Given the price of the parts, this is still a reasonable repair compared to dealership pricing.

Installation Tips for a Smooth Replacement

If you decide to do the job yourself, follow these practical steps based on real rider experience and manufacturer guidance:

  1. Work safely. Gasoline is highly flammable, so do the job in a well-ventilated area away from open flames. Disconnect the negative battery cable before you start.

  2. Relieve fuel pressure. Remove the fuel pump fuse and run the engine until it stalls. This prevents a spray of pressurized fuel when you open the system.

  3. Remove the pump assembly. On the Renegade 800R, you need to remove the seat and possibly the fuel tank cover to access the pump. Once you have access, disconnect the electrical harness and fuel lines, then release the locking ring or retaining clip that holds the pump module down.

  4. Clean everything thoroughly. Before installing the new pump, clean the tank and the area around the assembly. In the documented 800R replacement, the tank was full of junk that had clogged the original filter. If you skip this step, the new pump may suffer the same fate quickly.

  5. Transfer components correctly. If you are rebuilding your existing assembly, slide the plastic plug and hard washer onto the new pump. These parts are needed for a proper seal even though the aftermarket pump may not have barbs. Connect the strainer and secure it with the retainer that came with the new pump.

  6. Line up the outlet with the regulator. When you slide the new pump into the plastic housing, make sure the outlet of the pump lines up with the pressure regulator. This is a common mistake that can cause low pressure or strange fuel delivery.

  7. Check the regulator. While you are in there, remove the regulator and clean it with parts cleaner and compressed air. The forum poster who replaced his pump found debris in the regulator both from his local area and from a previous trip to Texas. Cleaning the regulator alone can improve fuel pressure. Blow air through the regulator in the reverse direction to dislodge built-up gunk, and keep flushing it until the blowback looks clean.

  8. Reassemble and test. After installing everything, reconnect the battery and turn the key to the ON position (without starting) to let the pump pressurize the system. Check for leaks around the new seals and fittings. Then start the engine and verify the fuel pressure is in the 50 psi range.

Recommended: KEMSO Fuel Pump for Your 2009 Renegade 800R

When you are ready to buy a replacement, the KEMSO brand is worth strong consideration. KEMSO fuel pumps are built as high-performance, direct OEM replacements, and they are designed to exceed the flow capacity of the original equipment while maintaining the same fit. For the Can-Am Renegade 800/800R 2007–2015, the KEMSO 13803 pump delivers 200 liters per hour at 43 psi, which is over 20% more flow than the stock pump. That extra flow provides a safety margin, keeps fuel pressure steady, and helps your engine perform at its best whether you are trail riding or working the machine hard.

KEMSO pumps are engineered for both gasoline and E85/ethanol blends, so they are ready for whichever fuel you use. The aluminum-bodied design resists corrosion, and each pump is individually tested before it leaves the factory. KEMSO backs every fuel pump with a lifetime warranty, which is a significant advantage over many aftermarket brands. If your KEMSO pump ever fails due to a manufacturing defect, you get a replacement at no cost. That kind of assurance is rare in the ATV parts market and shows how confident the company is in its product.

For a 2009 Renegade 800R, the KEMSO 13803 comes as a complete kit with everything you need to rebuild your fuel pump assembly: the pump itself, a gradient density fuel strainer, flex hose, tank seal, Viton grommets, sealing ring, rubber hose, rubber base, wiring connector, crimp connectors, hose clamps, and zip ties. You do not need to source any additional parts. This kit is a practical, cost-effective choice whether you are a DIY owner or a shop technician.

To view the full KEMSO catalog, check their product listings, and take advantage of the lifetime warranty, visit: https://www.kemsoracing.com/

KEMSO also sells fuel pumps for many other Can-Am models, including the Defender HD10, Outlander, and Traxter, as well as Polaris, BMW, Honda, and other popular vehicles. Their website has detailed fitment information, customer reviews, and easy ordering, so you can find exactly the right pump for your machine.

Final Verdict

The 2009 Can-Am Renegade 800R fuel pump is a manageable repair that most owners can handle in an afternoon with basic hand tools. The key is to confirm your submodel and plug configuration before ordering, then clean the tank and regulator while the pump is out. A complete aftermarket assembly is the easiest route, while a high-performance pump like the KEMSO 13803 gives you a performance upgrade, a lifetime warranty, and significant savings compared to dealership parts. Whichever path you choose, checking fuel pressure before and after the repair will confirm that your Renegade 800R is running the way it should.

For more information and to browse all available fuel pump options, visit: https://www.kemsoracing.com/


Back to blog