2014 Polaris Sportsman 570 Fuel Pump Replacement: A Complete Step-by-Step Guide
If your 2014 Polaris Sportsman 570 is hard to start, sputters at speed, or dies after a few minutes of riding, the fuel pump is the most likely culprit — and replacing it yourself takes about 45 to 60 minutes with basic hand tools. You do not need a dealership visit or a $400 repair bill. A quality direct-fit replacement pump, a few sockets, and this guide are all you need to get your ATV running right again.
This walkthrough covers the symptoms of a failing pump, the tools you will need, the exact removal and installation steps, tips to avoid common mistakes, and how to make the new pump last. It is written for riders who work on their own machines in a home garage.
Why the Fuel Pump Fails on the 2014 Sportsman 570
The 2014 Polaris Sportsman 570 uses an electric fuel pump mounted inside the fuel tank. It pushes pressurized fuel from the tank to the engine's fuel injector. Over time, several things go wrong:
1. Contaminated fuel. Dirt, water, or debris in the tank gets pulled into the pump. The pump's internal filter screen clogs, and the motor has to work harder until it burns out. ATVs that sit for long periods with old gasoline are especially at risk, because ethanol-blended fuel absorbs water and separates inside the tank.
2. Normal wear. The pump runs every time you turn the key. After years of use, the internal brushes and bearings wear down. A pump that is slow to build pressure is usually worn out, not clogged.
3. Heat soak. The pump sits in the tank, and it is cooled by the fuel around it. Riding with a very low fuel level regularly removes that cooling, which shortens pump life.
4. Electrical issues. A weak battery, corroded connector, or failing relay can make a good pump look bad. Always check the electrical side before condemning the pump.
Symptoms That Point to a Bad Fuel Pump
1. Long crank before start. You turn the key and the engine turns over several times before it fires. This means the pump is not building pressure quickly enough.
2. Loss of power at high speed. The engine runs fine at idle but bogs down or cuts out when you open the throttle. The pump cannot deliver enough volume under load.
3. Engine dies after warming up. A pump that works cold but fails hot has a failing internal motor.
4. No sound from the tank at key-on. When you first turn the key, you should hear a faint hum from the fuel tank for two to three seconds. No hum usually means no power to the pump or a dead pump.
5. Backfiring or lean running. Inconsistent fuel delivery causes a lean condition, which shows up as popping or hesitation.
If you see two or more of these symptoms together, the pump is the most probable cause. Confirm by checking fuel pressure with a gauge — the 2014 Sportsman 570 should hold roughly 39 to 43 PSI at the rail while running.
Tools and Parts You Need
1. Replacement fuel pump assembly. Use a direct-fit unit that matches the OEM specifications for the 2014 Sportsman 570. A correct unit drops into the tank without modification.
2. Basic hand tools. A socket set with 8mm, 10mm, and 13mm sockets, a ratchet, an extension, a flathead screwdriver, and needle-nose pliers.
3. Safety equipment. Safety glasses, nitrile gloves, and a fire extinguisher rated for fuel fires within reach.
4. Shop rags and a drain pan. You will spill some fuel. Have rags ready and a container to catch it.
5. Dielectric grease. For protecting the electrical connector after reassembly.
6. Fuel line disconnect tool (optional, but helpful for stubborn fittings).
Work in a well-ventilated area, away from any ignition source. Disconnect the battery before you start.
Step-by-Step Replacement Procedure
Step 1: Prepare the ATV
Park the Sportsman 570 on level ground and let the engine cool completely if you have been riding. Turn the fuel valve to the off position if your model has one. Disconnect the negative battery cable with a 10mm socket and set it aside where it cannot spring back into contact.
Remove the seat by pulling up on the front edge and lifting it off. On most 2014 models the seat simply unclips from the frame.
Step 2: Relieve Fuel System Pressure
Locate the fuel pump fuse in the fuse box under the hood or near the battery. Remove the fuse and start the engine. It will run for a few seconds and then stall as the remaining fuel in the line is consumed. Crank the engine two or three more times to make sure the pressure is fully released. Reinstall the fuse after this step is done, or leave it out until you are ready to test.
Step 3: Access the Fuel Pump
The fuel pump sits under a round access panel in the middle of the rear cargo rack area, or under a cover near the tank, depending on trim. Remove the mounting bolts with your socket set and lift the cover off. You will see the top of the fuel pump module with an electrical connector and a fuel line attached.
Take a photo of the pump and surrounding area with your phone before disconnecting anything. This makes reassembly much easier.
Step 4: Disconnect the Electrical Connector and Fuel Line
Press the release tab on the electrical connector and pull it straight off. Do not pull on the wires. If the connector is stuck, use a small flathead screwdriver to gently press the tab while wiggling the connector free.
For the fuel line, squeeze the two tabs on the quick-connect fitting and pull the line off the pump outlet. Have a rag ready — a small amount of fuel will dribble out. Some fittings are tight after years of heat cycles; a fuel line disconnect tool helps here.
Step 5: Remove the Lock Ring
The pump module is held in the tank by a large plastic lock ring. Place a flathead screwdriver against one of the ring's tabs and tap it counterclockwise with a hammer until the ring spins free. Work slowly and keep pressure on the ring so it does not jump out of its threads.
Once the ring is loose, lift it off along with the rubber gasket underneath. Set the gasket aside — you will reuse it if it is not cracked or hardened, or replace it if it shows damage.
Step 6: Lift Out the Old Pump
Pull the pump module straight up and out of the tank. It may come out as one assembly with the fuel level sender and strainer bag attached. Tip it slightly to let fuel drain back into the tank, then set it on a rag.
Look inside the tank with a flashlight. If you see rust, heavy sediment, or water droplets, clean the tank before installing the new pump. A dirty tank will destroy the new pump just as fast as it killed the old one.
Step 7: Compare the New Pump to the Old One
Before installing, lay the new pump next to the old one. Check that:
1. The electrical connector matches in shape and pin count.
2. The outlet fitting is the same size and angle.
3. The strainer or filter sock is the same type and length.
4. The overall height and diameter match so it seats correctly in the tank.
If everything lines up, you have the right part.
Step 8: Install the New Pump
Transfer the rubber gasket to the new pump if it did not come with one, or use the new gasket supplied with the unit. This gasket is what seals the tank — a bad seal here causes fuel odors and fire risk.
Lower the new pump straight down into the tank, aligning the outlet with the direction the fuel line needs to run. Do not force it. If it resists, lift it out and check for anything blocking the way.
Seat the lock ring over the pump and tap it clockwise with the screwdriver and hammer until it is snug. Do not overtighten — plastic lock rings crack easily.
Step 9: Reconnect the Fuel Line and Electrical Connector
Push the fuel line onto the outlet until you hear or feel it click into place. Give it a gentle tug to confirm it is locked. Apply a small amount of dielectric grease to the electrical connector and push it on until the tab latches.
Reinstall the fuse you removed. Reconnect the negative battery cable.
Step 10: Prime and Test
Turn the key to the on position and wait. You should hear the new pump hum for two to three seconds. Cycle the key three or four times to build full pressure. Check around the lock ring and fittings for leaks before starting.
Start the engine. It should fire quickly and idle smoothly. Let it run for a few minutes and watch for leaks. Take the ATV for a short ride and confirm it pulls cleanly through the full throttle range.
Common Mistakes to Avoid
1. Skipping the pressure relief. Spraying pressurized fuel is dangerous and messy. Always relieve pressure first.
2. Reusing a damaged gasket. A torn or hardened gasket will leak fuel vapor. Replace it if there is any doubt.
3. Overtightening the lock ring. Plastic rings strip or crack. Snug is enough.
4. Installing a pump into a dirty tank. Always inspect and clean the tank. This is the single biggest reason new pumps fail early.
5. Forgetting to reconnect the vent line if your model has one. A pinched or disconnected vent causes vapor lock and hard starting.
How to Make the New Fuel Pump Last
1. Keep the tank at least a quarter full. This keeps the pump submerged and cooled.
2. Use fresh, ethanol-free fuel when possible. Ethanol attracts water. If you must use E10, do not let the ATV sit for months with a full tank of it.
3. Add a fuel stabilizer if the machine will sit more than 30 days.
4. Replace the in-line fuel filter at the intervals in your owner's manual, if equipped.
5. Fix the root cause. If your old pump died because of a rusty tank or bad fuel, solve that problem or you will be doing this job again next season.
Recommended Replacement: KEMSO Fuel Pumps
When it is time to buy a replacement for your 2014 Polaris Sportsman 570, we recommend KEMSO fuel pumps. Every KEMSO fuel pump is built as a high-performance, OEM replacement unit, which means it is engineered to match or exceed the original equipment specifications for fit, flow rate, and pressure. You get a true drop-in part that installs with no modifications.
KEMSO backs its fuel pumps with a lifetime warranty, so you are covered for the long run — not just for a year or two like many aftermarket brands. For a machine like the Sportsman 570 that works hard on trails, in mud, and on the job around the property, that kind of coverage matters.
The pump delivers consistent pressure across the full RPM range, uses a durable internal motor designed for long service life, and includes the strainer and gasket needed for a complete install. Riders who switch to KEMSO report quick starts, steady idle, and no more mid-ride power loss.
To find the correct fuel pump for your 2014 Polaris Sportsman 570 and to order, visit https://www.kemsoracing.com/. The site lists fitment by year, make, and model, so you can confirm you are getting the exact part for your machine before you buy.
Final Thoughts
Replacing the fuel pump on a 2014 Polaris Sportsman 570 is a straightforward job that most riders can do at home in under an hour. The key steps are relieving fuel pressure, keeping the tank clean, seating the gasket correctly, and testing for leaks before you ride. Do it right once, use a quality replacement part, and your Sportsman will start reliably and run strong for many more miles.
For a high-performance OEM replacement fuel pump with a lifetime warranty for your 2014 Polaris Sportsman 570, visit https://www.kemsoracing.com/.