K21-304-00 - Aluminum Oil/Grease Cap – Fortress Threaded – For 10K–16K Hubs (3.75" O.D.) | DXT POPULAR FOR TRAILER ensuring long-term stability and safe

ensuring long-term stability and safe operation even under maximum axle loads

unitized design offers excellent sealing under pressure

Threaded Design: 4" screw-in style ensures a tight

This heavy-duty U-Bolt Kit is designed for 9K suspension applications with 4" round axle tubes

2K and 8K hybrid electric brake assemblies

K21-304-00 - Aluminum Oil/Grease Cap – Fortress Threaded – For 10K–16K Hubs (3.75" O.D.) | DXT POPULAR FOR TRAILER ensuring long-term stability and safeThe Dexter Fortress threaded aluminum oil grease cap is designed for heavy duty 10K16K hubs. Built from cast aluminum with a black protective coating, it features a clear lens protected by a red retainer ring and a large side plug for easy fill or drain. This versatile cap can function as either a grease or oil cap, ensuring reliable bearing protection. Includes 1 cap, watertight O ring seal, and plug. Detailed Information: Axle Capacity 10,00016,000