4pcs 2.441in Stainless Steel Trailer, Replacement Hub Cap with Grease Indicator, Bearing Protector for 6 Bolt Trailer Hubs

Condition: Brand NewItem Type: Trailer Bearing BuddyMaterial: Stainless SteelColor: As picture shownBearing Buddy Bottom Size: Approx. 2.441inApplication: Designed to be used in most 6 boltshubs. Product Tolerance: -0.02 to -0.05mmInstruction:Bearing buddys put a small amount internal pressure in the hub (about 3psi). When the hub is submerged water cannot enter the hub because of this pressure. Its a great way to extend bearing life and service your bearings in-between hub re-packs. 's help keep dirt and water out of your hubs and bearings. The blue indicator ring will protrude out to let you know when your is full, or sink back in to let you know that you need to add grease.Package List：4 x Trailer

• Automatic Grease Level Indicator: This stainless steel trailer features a blue indicator ring that protrudes when full and retracts when grease is low, helping you maintain optimal lubrication without guesswork and preventing premature bearing failure.
• Water and Dirt Protection: The trailer creates a slight internal pressure of about 3 psi inside the hub, effectively blocking water, mud, and debris from entering—even when submerged—keeping your trailer bearings clean and functioning longer.
• Universal Fit for Common Trailers: Designed specifically for most 6-bolt trailer hubs with a 2.441-inch bore diameter, this replacement works seamlessly with standard boat, utility, and cargo trailers used by recreational and professional users alike.
• Premium Stainless Steel Construction: Made from high-grade stainless steel, this trailer resists rust, , and wear caused by road salt, rain, or marine environments, ensuring reliable performance season after season without degradation.
• Easy Installation and Maintenance: No special tools needed—simply press this into your hub for a secure fit. Comes in a set of 4, giving you complete coverage for a dual-axle trailer and simplifying routine bearing servicing between full repacks.