Washer[10] by Polaris

Polaris UTV/ATV OEM Crankshaft & Bearings - Available at buywitchdoctors.com

Product Specifications: Genuine OEM Polaris Washer, Part # 0450264.

The bottom end of your engine is where raw combustion energy transforms into pure trail-shredding performance. High-RPM operation, heavy loads, and deep water crossings put immense pressure on your rotating assembly. Installing a genuine Polaris UTV/ATV OEM Crankshaft & Bearings kit is the most reliable way to restore factory-spec balance. It eliminates engine-killing vibrations, and protect your engine case from terminal structural damage.

Unlike universal, budget-tier aftermarket components that frequently suffer from improper truing, offset oil holes, or loose tolerances, original factory parts guarantee an exact press fit. These engine internals are engineered to handle the exact torque spikes and thermal expansions of your specific Polaris powerplant, giving you the peace of mind needed when pushing your machine out on the trail.

Advanced Engineering and Heavy-Duty Materials

Every factory crankshaft assembly is forged from premium-grade carbon steel alloys and precision ground to micro-inch tolerances. This meticulous manufacturing process ensures that the rod journals and counterweights maintain perfect rotating balance, dramatically extending the operational lifespan of your entire bottom end.

The companion main and connecting rod bearings feature heavy-duty, low-friction babbitt or composite metal linings. These specialized surfaces are optimized for uniform oil-film distribution, preventing metal-on-metal contact and ensuring high-temperature oil pressure remains stable, even during prolonged, wide-open-throttle riding.

Comprehensive Polaris Fitment Models (2015-Current)

Polaris RZR Series: 900, XP 1000, Turbo, Pro XP, Pro R, and RS1.

Polaris Ranger Series: 500, 570, XP 900, XP 1000, and Crew.

Polaris General Series: 1000 and XP 1000.

Polaris Sportsman ATV Series: 450, 570, 850, and XP 1000.

Polaris ACE Series: 500, 570, and 900.

Polaris Xpedition Series: XP, ADV.

⚠️ 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 Crankshaft Accessories & Bottom-End Components

A complete bottom-end rebuild requires absolute precision and fresh seals. Make sure to round out your maintenance project with these popular matching parts:

• Main Bearing & Seal Kits: Keep vital engine oil inside the block and keep trail water, mud, and fine dust out of your rotating assembly.

• Connecting Rods & Components: High-strength replacement rods and factory stretch bolts designed to handle extreme combustion forces.

• Cams & Components: Ensure perfect mechanical synchronization between your crankshaft, flywheel, and valve train.

• Engine Gaskets & Oil Seal Kits: High-performance, multi-layer gaskets designed to create an airtight seal between your case halves.

Frequently Asked Questions

Why should I choose an OEM crankshaft assembly over a cheaper aftermarket option? Aftermarket crankshafts are often welded or pressed together with lower-tier steel blends that can warp or twist under high torque loads. Genuine OEM assemblies are dynamically balanced at the factory to match the specific weight of your pistons and rods, preventing catastrophic bearing failure.

What are the primary signs of worn crankshaft main bearings? Common symptoms include a deep, rhythmic knocking sound from the bottom of the engine, a sudden drop in engine oil pressure when hot, excessive metal shavings or "glitter" in your engine oil, or a noticeable increase in engine vibration at idle.

Should I always replace the bearings when installing a new crankshaft? Yes. You should never run an old, broken-in bearing on a brand-new crankshaft journal. Microscopic wear patterns on old bearings will quickly score the fresh journals of your new shaft, destroying both components in a matter of miles.

Do these crankshaft assemblies come pre-assembled with connecting rods? Most factory assemblies include pre-installed, balanced connecting rods and wrist pin bushings for an efficient, drop-in installation. Please verify the specific schematic breakdown for your part number on Witchdoctors.com.

PRO TIP: Expert Installation Guide: Stop UTV Gasket Leaks- Install them Correctly.

PRO TIP: Learn more with "A Buyer’s Guide To UTV/ATV Internal Engine Components."

Protect Your Bottom End Investment

Don't gamble your engine block on cheap, unverified internal components. Rebuild your engine with the strength and precision it deserves. Get your factory-validated replacement parts today directly from Witchdoctors.com and get back to dominating the trails with confidence.

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. Hatfield-McCoy Trails
2. Look Here in Georgia
3. Look Here in Michigan
4. Look Here in Washington
5. Look Here in Maryland

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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.

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