4pcs 2.441in Stainless Steel Trailer, Replacement for 6 Bolt Hubs, Grease Cap with Blue Indicator for Boat and Utility

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 prevent premature bearing failure.
• Water and Debris Protection: The trailer creates a slight internal pressure of about 3 psi inside the hub, effectively blocking water, dirt, and contaminants from entering—even when submerged—greatly extending your trailer bearing’s service life.
• Universal Fit for Common Trailers: Designed specifically for most 6-bolt hubs with a 2.441-inch bore diameter, this replacement works seamlessly on boat trailers, utility trailers, and other light-duty towing applications requiring reliable hub protection.
• Premium Stainless Steel Construction: Made from high-grade stainless steel, this trailer resists rust, , and wear from road salt, , and harsh weather, ensuring long-lasting performance season after season.
• Easy Installation and Maintenance: No special tools needed—simply press into your hub for a secure fit. Includes 4 pcs trailer units, giving you complete coverage for dual-axle trailers and making routine bearing maintenance quick and hassle-free.