Replacing the Fuel Hose on a 2019 Textron Alterra 570 EPS
Shop parts for a 2019 Textron Alterra 570 EPS ATV.
Power steering makes the 2019 Alterra 570 EPS easier to muscle through mud than the base model, but it also adds hardware and wiring in the front of the chassis that you work around when servicing fuel plumbing. The 570 EPS is fuel injected, so the tank holds an electric pump that keeps the supply hose pressurized and there is no fuel valve to shut off before you start. Plan the job around depressurizing the system, and the rest is basic hose work.
Staging the Repair
Lay out these items before anything comes apart:
- Nitrile or rubber gloves and eye protection, since a pressurized line can spit fuel when a fitting releases
- A shallow drain pan and a sealed, fuel-rated container to store what you catch
- Replacement hose rated for injection pressure, cut from the same inside diameter as the original
- New clamps in the correct style, along with clamp pliers or a small flat-blade driver
- Line-clamping pliers, which are how you stop flow on a model with no petcock
- A razor knife, plenty of rags, and sockets for the seat and side panels
Choose your workspace deliberately. Open the garage fully or roll the machine outside, because gasoline vapor is heavier than air and puddles at floor level where a furnace, water heater, or shop heater can find it. No grinders, no torches, no smoking, and keep a dry-chemical extinguisher within arm's reach for the whole job.
How a Good Hose Turns Brittle
Fuel hose fails on a schedule set by chemistry rather than mileage. The plasticizers that keep the rubber pliable slowly bake out under engine heat, and every season the hose becomes a little harder and a little less able to flex with the chassis. Eventually the surface glazes over and small splits open at the tightest bends. Riders in dry regions see this arrive sooner, because arid air steadily strips moisture from the hose wall and hardens it from the outside in.
Meanwhile, ethanol-blended fuel attacks the liner. Alcohol pulls water into the fuel, and that combination breaks down the inner surface, softening it and loosening fine particulate that heads straight for the injector. A 570 EPS that sat through a long winter with fuel in the system gives that process months to work. The result is a hose that can look fine while quietly deteriorating internally, which is why age alone justifies replacement.
Symptoms Worth Taking Seriously
Watch for these before a hose fails outright:
- A puddle or damp film of gasoline under the machine after it has been sitting
- A persistent fuel odor, usually strongest right after shutdown while the line still holds pressure
- Visible surface cracking, a chalky bloom, or a section that feels hard and unyielding when pinched
- Bogging under load, hesitation when you roll the throttle open, or a lean, surging idle
- A collar of caked dirt at a fitting where fuel has been weeping and drying repeatedly
Because this is a pressurized circuit, a small crack often sprays rather than drips, so the vapor smell may be the only symptom you get. Do not dismiss it just because the floor under the quad looks dry.
Breaking the Connections Loose
Relieve pressure before touching a fitting. Pull the fuel pump fuse, let the engine run until it stalls, key off, then disconnect the battery negative. Remove the seat and any panels blocking the hose run from tank to throttle body. Slide the pan under the first joint and drape a rag over it, since residual fuel will run out even after the pump has stopped.
Back the clamps off and slide them well down the hose. For a locking quick-connect, press the tabs evenly and pull straight without twisting the collar sideways, as years of heat make that plastic brittle. Break the varnish bond by rotating the hose on the barb rather than yanking, and slit a stubborn end lengthwise with the razor instead of forcing it. Take note of the routing on the way out. The 4x4 layout with the front differential and power steering unit up front means the line threads through clearance points a simpler two-wheel-drive chassis would not have, and putting it back in the wrong path invites chafing.
Fitting Both Ends
Cut the replacement to match the old piece length for length. Too long and the hose sags into hot exhaust or rubs a frame tube, too short and both fittings stay under tension. Slide the ends on dry until each bottoms against the shoulder of its barb. Keep grease, oil, and silicone away from the fittings entirely, because any lubricant film gives pressurized fuel a path to escape past the clamp. Soaking the hose ends in hot water for a moment makes them soft enough to push on without help.
Set new clamps just behind the bead on each fitting and tighten them evenly, firm but not crushing. Where the Alterra uses a self-locking quick-connect at the tank, push until it clicks and pull to confirm the latch has caught; that joint seals itself and takes no clamp. Return the hose to every original guide and retainer so it keeps its distance from the driveline and exhaust.
Confirming a Dry Install
Reinstall the fuse, Reconnect the battery, and cycle the key on and off several times without starting the engine. Each cycle pressurizes the hose so you can inspect both connections while they are clean. Wipe the fittings with a pale rag, then start the machine and check again at idle and with a few throttle blips. Give it several minutes of running before the bodywork goes back on.
Keep in mind that the filter on this injected model sits inside the tank as part of the pump assembly rather than inline on the visible hose. Fresh line will cure a leak or a collapsed section, but it cannot fix a plugged filter, so a 570 EPS that still feels flat afterward points toward the in-tank unit.
Related Shopping Categories
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Shop Fuel Stabilizer for a 2019 Textron Alterra 570 EPS ATV.
Disclaimer: This guide is provided for general informational purposes only and is not intended to replace your ATV's official owner's manual. Always refer to your manufacturer's documentation for model-specific instructions, torque specifications, safety procedures, and maintenance requirements. If you are unsure or inexperienced, consider seeking assistance from a qualified mechanic or technician.