An Image of the Genuine Polaris Logo reading 'GENUINE OEM PART' 3021865
#8 in the Diagram
Four Polaris off-road vehicles displayed with the Polaris logo above them on a white background.
An Image of the Genuine Polaris Logo reading 'GENUINE OEM PART' 3021865
#8 in the Diagram
#8 in the Diagram
Four Polaris off-road vehicles displayed with the Polaris logo above them on a white background.

Retainer Valve by Polaris

$5.99 USD
Normally Ships in 5-7 Business Days

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SKU: 3021865
In stock and ready for shipping

SKU: 3021865

Polaris UTV/ATV OEM Valves & Valve Springs - Available at buywitchdoctors.com

Product Specifications: Genuine OEM Polaris Retainer Valve, Part # 3021865.

Ensure your engine maintains peak volumetric efficiency and high-RPM reliability with Genuine Polaris UTV/ATV OEM Valves & Valve Springs. The valvetrain is the lungs of your engine, and even the slightest loss in seal or spring tension can result in significant power loss or catastrophic engine failure. These original equipment manufacturer components are precision-engineered to restore factory-spec compression and performance.

Whether you are performing a top-end rebuild or addressing a decrease in throttle response, using authentic Polaris parts is the only way to guarantee a perfect seat-to-valve seal. These valves and springs are designed to withstand the extreme heat and mechanical stresses of off-road racing and heavy-duty utility work. Trust the quality available at Witchdoctors.com to keep your machine running at its absolute best.

High-Performance Valvetrain Features

  • Precision Machined: Valves are engineered with exact stem diameters and face angles to ensure an airtight seal and maximum airflow.

  • Advanced Metallurgy: Forged from high-grade, heat-resistant alloys that prevent valve "tuliping" and stem stretching under extreme temperatures.

  • Consistent Spring Rate: OEM valve springs provide the exact tension required to prevent valve float at high RPMs, protecting your pistons and cams.

  • Direct Replacement Fit: These components are designed to drop into your factory cylinder head without the need for additional machining.

  • Engineered Longevity: Tested across thousands of hours in desert, mud, and trail conditions to ensure a long service life.

The Foundation of Engine Power

Your engine's ability to breathe determines its torque and horsepower. Worn valves or weakened springs can cause misfires, poor idling, and increased oil consumption. By installing Genuine Polaris UTV/ATV OEM Valves & Valve Springs from Witchdoctors.com, you are restoring the structural integrity of your combustion chamber. Don't risk your engine's health with generic alternatives that can't handle the heat.

Compatible Polaris Models (2015-Current)

⚠️ IMPORTANT DISCLAIMER: Always check your owner’s manual or the fitment tab on witchdoctors.com to make sure this part fits your specific year, make, and model before ordering.

Popular Valves & Valve Springs Parts and Accessories

Frequently Asked Questions

Why should I choose OEM valves over aftermarket performance valves? OEM valves are designed to match the specific hardness of your factory valve seats. Aftermarket valves can sometimes be too hard or too soft, leading to rapid seat wear or valve face deformation.

How do I know if my valve springs are weak? Signs of weak valve springs include a loss of power at high engine speeds, backfiring, or an engine that refuses to rev to its normal redline due to valve float.

Is it necessary to replace the valve seals at the same time? Yes. Whenever you have the valves and springs removed, it is standard professional practice to install new valve stem seals to prevent oil from leaking into the combustion chamber.

PRO TIP: How to Fix Ticking UTV Valvetrain Noise: Causes & Symptoms.

Restore Your Top-End Performance

Don't let a tired valvetrain hold you back. Invest in the precision and durability of Genuine Polaris UTV/ATV OEM Valves & Valve Springs. Designed for the toughest trails and the hardest workers, these parts ensure your machine remains a leader in the field. Shop the full selection at Witchdoctors.com today for fast shipping and expert-backed reliability.

Are You Looking to Find Great Places & Adventurous Trails to Ride Your UTV, Side by Side or ATV? Check out these highly recommended places:

  1. Look Here in Minnesota
  2. Hatfield-McCoy Trails
  3. Look Here in Colorado
  4. Alaska ATV/UTV Adventures
  5. Mulberry Mountain

General Safety Warning & Installation Requirements

Your safety is our top priority. Whether you are maintaining a Victory® or Indian® Motorcycle, or servicing a UTV, ATV, or Side-by-Side, proper installation is vital to the performance and safety of your vehicle.

Important:
Warning: Failure to follow manufacturer-specified installation procedures and safety requirements can result in mechanical failure, loss of vehicle control, serious injury, or death.

Important Fitment Disclosure

At Witchdoctors, we want to ensure you get back on the road or trail as quickly as possible. Correct fitment is the most critical step in purchasing parts for your Victory® or Indian® Motorcycle. Also for your Polaris®, CFMoto®, Arctic Cat®, Yamaha®, Honda®, Can-Am®, Kawasaki® UTV and ATV.

Verification Required: While we strive for 100% accuracy, vehicle manufacturers often make mid-year production changes. Always verify your specific year, make, and model before finalizing your order.
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Shipping

Qualifying Retail orders $159.99 or more will receive free ground shipping. Free Shipping Terms and conditions.

All orders over $500 will require a signature.

Please see International Shipping page for orders shipping outside the US.

See our full Shipping Policy page for further details.

Product Availability

We show real time product availability. These products normally ship the same business day but may ship from one of our warehouses across the country. If an item requires additional processing time you will be notified.

Returns

If your order arrives and it is not right, we will we'll fix it. We promise!

Doesn't fit or just not happy with it? You can return any new, unopened, unused or unaltered item within 30 business days of delivery receipt of your item. We will issue a refund to your original payment method.

See our full Return Policy for all of the pertinent details.

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