Polaris 9-100-1108 OEM Ball Bearing for 340 / 360 / 380

Replace a Worn Bearing in the Matching Wheel Assembly

• Exact Polaris bearing reference 9-100-1108.
• Listed for Polaris 340, 360 and 380 cleaner wheel assemblies.
• Lets you address a confirmed bearing problem while inspecting the wheel and axle separately.

Quick Product Summary

The Polaris 9-100-1108 ball bearing is a service part for matching wheel assemblies on Polaris 340, 360 and 380 cleaners. A bearing supports wheel rotation, so its condition matters when investigating rough movement or excess play at the wheel. Identify the worn component before ordering: a bearing, wheel, tire and axle perform different jobs and are not interchangeable repairs.

Best For

Owners or technicians who have identified a worn or damaged 9-100-1108 bearing in a compatible cleaner. It is a sensible part to inspect during wheel service when the wheel feels rough, loose or difficult to rotate after obvious debris has been removed.

Why This Matters

• The correct bearing reference matters even when two cleaner wheels look similar.
• A damaged wheel bore or worn axle can affect the assembly after a new bearing is fitted.
• Replacing only the confirmed worn components helps keep the repair focused without assuming every bearing has failed.

Common Signs You Need This

• Roughness or binding when checking the wheel assembly with the cleaner off.
• Excess play traced to the bearing rather than a loose fastener or damaged wheel.
• Visible bearing damage found during model-specific wheel service.

Product Specifications

Compatibility / Fitment Notes

Match 9-100-1108 to the wheel assembly shown in your cleaner’s parts diagram. The 340 is a suction-side cleaner; the 360 and 380 are pressure-side models, even though they share this bearing reference. Do not select a bearing simply because another Polaris cleaner uses a similar wheel. Parts-diagram quantities describe a complete cleaner and should not be treated as the quantity supplied in a retail package.

Installation / Use Notes

• Switch off the equipment that operates the cleaner and remove the cleaner from the pool before servicing the wheel.
• Use the correct model’s disassembly sequence. Keep track of wheel orientation and fasteners, and inspect the axle, wheel bore and other bearings while the assembly is accessible.
• Fit the replacement without forcing it into a damaged seat. Reassemble to the manufacturer’s instructions, confirm that the wheel rotates as intended, then check cleaner operation after returning it to service.

Buy with Confidence

Choose Benchmark Pool Supply’s listing by the exact Polaris bearing number and your cleaner diagram. If the source of wheel play is unclear, identify the damaged part before purchasing. This listing does not promise that a bearing alone will correct every movement problem.

Frequently Asked Questions

What does this bearing do?

The 9-100-1108 bearing supports rotation in the matching cleaner wheel assembly. It is a separate component from the tire, structural wheel and axle.

Which models use Polaris 9-100-1108?

Polaris parts diagrams list it for the 340, 360 and 380. Confirm the exact wheel position and assembly in the manual for your model before ordering.

Are all three compatible cleaners pressure-side models?

No. The Polaris 340 is suction-side, while the 360 and 380 are pressure-side cleaners. Shared bearing fitment does not make their other systems or service parts interchangeable.

Do I need to replace every wheel bearing?

Inspect each bearing and its surrounding components. A diagram’s total bearing count is not a requirement to replace every bearing, and it is not a retail package quantity.

Will a new bearing fix a loose wheel?

Only if the bearing is responsible for the looseness. A loose fastener, worn axle or damaged wheel can cause similar symptoms and may require a different repair.