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

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 avoid under-greasing or overfilling your trailer hubs for optimal bearing performance.
• Water and Dirt Protection: The trailer maintains approximately 3psi internal pressure inside the hub, effectively blocking water, mud, and debris from entering—even when submerged—keeping your bearings clean and extending their service life significantly.
• 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 boat trailers, utility trailers, and other standard axle setups without requiring modifications.
• Premium Stainless Steel Construction: Made from high-grade stainless steel, this trailer resists rust, , and wear caused by road salt, , and harsh weather, ensuring long-term durability and reliable performance season after season.
• Tool-Free Easy Installation: Installing these trailer bearing buddies takes minutes with no special tools—just press them into your hub like standard grease caps. Package includes 4 pieces, giving you complete coverage for dual-axle trailers right out of the box.