1Applicable Model: Replacement for Polaris Diesel 4x4; Replacement for Polaris 250 300 Xplorer 4x4; Replacement for Polaris 325 425 500 Magnum 4x4; Replacement for Polaris 400L Big Boss 6x6 and more. 2High Precision: High speed bearings are manufactured with precision, supporting the mechanical rotating body and reducing the friction coefficient during the movement of the Atv. 3Rubber Sealing: The wheel bearing has rubber on the outside to form a seal at the hub, which can prevent dust, sediment and water from entering the bearing. 4Durable Construction: Atv wheel bearings are made of premium steel material, high strength and hardness, anti rust, wearproof, sturdy and durable. 5Direct Replacement: This wheel bearing seal kit matches the fit and function of the factory part on specified models, is a reliable replacement part.