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Polaris Sportsman 400
ATV · PolarisParts guide1993–2014

Polaris Sportsman 400 Parts Guide for Repairs and Work

Find Polaris Sportsman 400 parts by job, including electrical, fuel, cooling and drivetrain, with in-stock parts, teardown finds and top searches.

5 min read · Nov 10, 2026

Sportsman 400 4x4
1,267parts in stock
807 used OEM →
Sportsman 400
1,269parts in stock
807 used OEM →
Sportsman 400 2x4
95parts in stock
Torn down here
1machine
Brands carried
12brands

The Sportsman 400 at a glance

This Polaris Sportsman 400 parts guide routes a no-start, fuel, cooling, engine, drive, steering, tire, plow or winch job to the right part group.

Coverage spans 1993 to 2014. For Polaris Sportsman 400 parts, identify whether your quad is a Sportsman 400 4x4, Sportsman 400 or Sportsman 400 2x4 because each version has its own parts page. Check fitment for your exact year, make and model before you order.

The page also covers aftermarket parts and used OEM teardown parts; read the note on any used part before ordering.

What Sportsman 400 owners search for

Most searched for the Polaris Sportsman 400

  1. 01BatteryShop battery for the Polaris Sportsman 400
  2. 02CarburetorShop carburetor for the Polaris Sportsman 400
  3. 03StarterShop starter for the Polaris Sportsman 400
  4. 04Fuel PumpShop fuel pump for the Polaris Sportsman 400
  5. 05StatorShop stator for the Polaris Sportsman 400
  6. 06SolenoidShop solenoid for the Polaris Sportsman 400
  7. 07PistonShop piston for the Polaris Sportsman 400
  8. 08RadiatorShop radiator for the Polaris Sportsman 400

Starting and electrical

Starting and electrical for the Polaris Sportsman 400

Start with Batteries. On a Polaris Sportsman 400 with a no-crank or electrical fault, check Starters, Solenoids, Key Switches & Start Buttons, Sensors Cam Map & Speed, and other Electrical Components. Keep a suspected stator in the charging-system diagnosis before blaming the starter.

Load-test the battery, clean the terminals and grounds, then check for power at the solenoid.

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Batteries for the Sportsman 400 4x4

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Fuel and air

Fuel and air for the Polaris Sportsman 400

Trace fuel and airflow first. If the Polaris Sportsman 400 cranks but will not fire, runs lean or starves under load, inspect Carburetors, Fuel Systems & Delivery, Fuel Pump & Sending Units, Air Intake & Filters, or Throttle Bodies according to where the flow stops.

Check fuel flow, the air filter and the intake before ordering a carburetor or fuel pump.

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Carburetors for the Sportsman 400 4x4

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Cooling

Cooling parts for the Polaris Sportsman 400

Find the failed cooling path. On a Polaris Sportsman 400 that is losing coolant, circulation or airflow, inspect Radiators, Engine Cooling, Cooling Fans, Guards Covers & Shrouds, Radiator Caps, and Water Pumps based on where the problem begins.

With the engine cold, trace coolant stains and inspect the fan connector, cap, shrouds and water-pump area.

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Radiators for the Sportsman 400 4x4

Shop used radiators

Engine and transmission

Engine and transmission for the Polaris Sportsman 400

Internal engine or gearbox work on a Polaris Sportsman 400 belongs under Pistons & Rings, Engines & Parts, Transmission & Parts, Engine Cases, Top End Rebuild Kits, or Timing.

Inspect the cylinder and head before choosing a piston, rings or top-end kit.

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Pistons & Rings for the Sportsman 400 4x4

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Upgrades and accessories

Work upgrades for the Polaris Sportsman 400

Choose Snow Plows first. For wet snow on a gravel drive, property chores or hunting season, Winch Mounts fit the winch to the Polaris Sportsman 400, while Winches handle repeated blade lifting or recovery work.

Match the mount, winch, push tube, the frame that carries the blade, and blade as one system; use shoes or skids so the plow does not dig into loose gravel.

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Winch Mounts for the Sportsman 400 4x4

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Drive, belts and clutch

Drive, clutch and axle parts for the Polaris Sportsman 400

Locate the trouble first. On a Polaris Sportsman 400, noise, play, leakage or loss of drive can lead you to inspect Wheel & Axle Hubs, Drivetrain, CV and Axles, Castle & Lock Nuts, a Differential Bearing & Seal Kit, or the Primary Clutch where the trouble begins.

On a Sportsman 400 4x4, check the hub, CV boot, axle splines and fasteners before opening the differential.

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Wheel & Axle Hubs for the Sportsman 400 4x4

Shop used wheel & axle hubs

Suspension and steering

Suspension and steering for the Polaris Sportsman 400

Loose steering or crooked tracking on a Polaris Sportsman 400 can point to Ball Joints Bearings Bushings, Suspension & Steering, Shocks & Struts, Steering Components, Tie Rods & Ends, or Rear A-Arms.

Raise the quad safely and isolate play at each joint instead of replacing everything around it.

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Ball Joints Bearings Bushings for the Sportsman 400 4x4

Shop new ball joints bearings bushings

Tires and wheels

Tires and wheels for the Polaris Sportsman 400

For a Polaris Sportsman 400 wheel job, sort the damaged part into Front Wheels, Wheels & Rims, Rear Wheels, Lug Nuts & Studs, Wheels Tires & Tubes, or Tires & Tubes. Buy tires and tubes new.

Read the tire size from the sidewall and match wheel diameter, width, bolt pattern, offset and valve or tube setup.

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Front Wheels for the Sportsman 400 4x4

Shop used front wheels
Brands we carry

Shop the Sportsman 400 by brand

Frequently asked questions

How do I find the right part for my Sportsman 400 4x4, Sportsman 400, or Sportsman 400 2x4?

Use the exact model designation shown on the quad's identification label or paperwork, not just the Sportsman 400 name. PirateMX separates the Sportsman 400 4x4, Sportsman 400 and Sportsman 400 2x4 onto different parts pages. Check fitment for your exact year, make and model before you order. If the fitment chart does not name your machine clearly, ask PirateMX before ordering.

When is a used OEM teardown part a sensible choice for a Polaris Sportsman 400 repair?

A used OEM teardown part makes sense when you need a factory hard part or complete assembly and the note on that specific part shows it suits the repair. It can be useful for engine cases, transmission parts, hubs, steering pieces or body hardware that may be difficult to replace another way. Read the part note closely and compare the complete assembly, connectors and mounting points before ordering.

What should I check before ordering a Sportsman 400 battery, carburetor, starter, or fuel pump?

Confirm the fault before ordering, then compare the part's connections, mounting and included pieces. For a battery, check case size and terminal layout. For a carburetor, compare the intake, airbox, cable and choke connections. Match a starter by its mounting and electrical connection, and a fuel pump by its connector, outlets and system type. Check what is in the box, and ask PirateMX if the page leaves a detail unclear.

Can't find the part for your Polaris Sportsman 400?

See every part we list: Polaris Sportsman 400 4x4 parts, Polaris Sportsman 400 parts and Polaris Sportsman 400 2x4 parts, plus brakes and cables, controls, lights and gauges and body, plastics and frame.

Check the year, make and model on each listing before you order.

Can't find it? Request a part and tell us exactly what you are looking for.

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From the teardown bench

Polaris Sportsman 400 teardowns

Real Sportsman 400 machines we took apart for used OEM parts. Each post lists what is still on the shelf from that machine.