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Starter Motor for Polaris Sportsman 550

OEM Quality Starter Compatible with Polaris Sportsman 550 / OEM 3090221

Model Fitment:

Polaris Sportsman 550

Shipping:

15-30 Working Days

Quantity:

SKU: 7710407 Categories , Tag Brand:

Description

wholesale motorcycle parts

Item Description:

  • Name:Starter Motor for Polaris Sportsman 550
  • SKU:7710407
  • Fitment: Sportsman 550 EPS 549cc Engine 2010-2014, Sportsman 550 EPS Touring 549cc Engine 2010-2014, Sportsman 550 Forest 549cc Engine 2011-2014, Sportsman 550 XP 549cc Engine 2009-2014, Sportsman 550 XP EPS 549cc Engine 2009-2014, Sportsman 550 XP Touring EPS 549cc Engine 2012, Sportsman X2 550 549cc Engine 2010-2014
  • Part Number: 3090221
  • Delivery Time: 15-30 Days

FAQS

Why does this starter have a “550-Specific” gear ratio when other Sportsman starters look identical?

Optimized for Mid-Range Torque Demands:

  • 10.5:1 Reduction Gears (vs 11:1 on 450cc / 9.8:1 on 850cc)

  • Neodymium Magnet Armature: 22% faster crank speed than OEM

  • Validated Performance:
    → Starts reliably with compression up to 180psi (critical for big-bore kits)
    → Tested with 26″ tires + 2,500lb winch loads

Can I install this starter motor myself, or do I need a mechanic?

Installation requires mechanical aptitude. You’ll need tools (wrenches, sockets) and must safely disconnect the battery, access the starter (often near the engine block), remove the old unit, and connect wiring correctly. If unfamiliar with ATV electrical systems or engine components, professional installation is recommended to avoid damage or safety risks.

My ATV has starting difficulties or makes unusual noises. Is this definitely a starter motor problem?

Starting difficulties or unusual noises can have various causes, not necessarily a faulty starter motor itself. Potential causes include:

  • Weak or old battery
  • Corroded or loose battery terminals/starter connections
  • Faulty starter relay/solenoid
  • Ignition switch issues
  • Internal engine mechanical problems
  • Recommendation: Before replacing the starter motor, check the battery condition, ensure battery connections are clean and tight, and verify the operation of related components (like the relay). If unable to diagnose, have a professional mechanic inspect the vehicle to avoid unnecessary replacement.

Why work with us as your supplier ?

With over a decade in motorcycle parts export, our company, JALYN,offers:

  • Consistent quality control
  • Flexible MOQ policies
  • Multilingual export service
  • Experience in serving high-volume importers in Europe, South America, and Southeast Asia
    We don’t just ship parts—we help you build a scalable supply chain.

Company Information:

JALYN reached one of the TOP 10 exporter for motorcycle parts and accessories since 2017.

Learn More ATV Parts

 

FAQ

The quotation should be given within 24 hours.
If it is very urgent, Please make an emphasis by remarks.

The bulk order price can be negotiated.
We will quote the lastest best price according to the customer final purchase list.

Most sample could be free for you , you need just to pay the freight to your place.
Usually, the sample will be sent within one week. It depends on the stock.

Yes. Surely ! we can do OEM Package for you.
Just send me your detail request,we can design the package for you.

For the spare parts and accessories, it would depend on the detailed products.

Normally 15-30 days for motorcycle ATV Scooter and Bike Parts and accessories once your order placed.
Generally speaking, we suggest that you start inquiry two months before the date you would like to get the products at your country.

We accept T/T and L/C.
You can choose the one which is the most convenient or cost effective for you.

By air,by sea(LCL,FCL).
If anything else that you want to know, please contact us.

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