Dexter Fortress Threaded Cap - 5,200 - 8,000 lbs. K21-303-00

Fits 5,200 – 8,000 lbs. (Dexter, Rockwell & Lippert Axles)

Save Time & Effort

Featuring a larger, conveniently accessible side fill/drain plug, this innovative product streamlines maintenance tasks. Whether for oil or grease applications, the Fortress Oil Cap adapts to your needs. Backed by Dexter's 5-year warranty, it guarantees reliability and peace of mind. Upgrade your trailer with the Fortress Oil Cap and experience unparalleled convenience and performance.

Protect Your Investment

Backed by over 60 years of known and trusted technology, Fortress offers a complete line of aluminum caps. Engineered and designed by Dexter as a bona fide superior bearing protection solution for several Dexter axle capacities. Fortress bolt-on caps are available on Dexter axle capacities 9K through 12K, offering industrial-grade fortification similar to comparable heavy truck and trailer applications. Fortress threaded caps are available on Dexter axle capacities 7K through 8K and 15K through 16K. With durability in every detail, hit the road knowing your equipment is fortified with next-level bearing protection.

Replacement Cross-Reference