4pcs 2.441in Stainless Steel Trailer, Replacement Bearing Cap with Grease Level Indicator, Hub 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 avoid under-lubrication and extend bearing life without guesswork.
• Water and Dirt Protection: The trailer maintains about 3psi internal pressure in the hub, effectively blocking water 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 for reliable everyday use.
• Premium Stainless Steel Construction: Made from high-grade stainless steel, this trailer resists rust, , and wear, ensuring long-lasting performance even in harsh marine or road conditions without flaking or cracking.
• Easy Installation and Maintenance: No special tools needed—simply press into place and add grease as needed. Includes 4 trailer bearing buddies for complete axle coverage, making routine hub maintenance quick, clean, and hassle-free.