FORTRESS ALUMINUM THREADED CAP SERVICE KIT 5,200 - 8,000 LBS

Keep your trailer hubs sealed, protected, and ready for the road with the Fortress Aluminum Threaded Cap Service Kit. Designed for compatible 5,200–8,000 lb trailer axles, this kit provides the replacement components needed to restore your threaded oil cap and maintain a secure seal on your oil bath hub.

Over time, seals, O-rings, and threaded cap components can wear from heat, vibration, and everyday towing. Replacing these service parts helps prevent oil leaks, keeps dirt and moisture out of your trailer hubs, and protects your wheel bearings from premature wear and costly repairs.

Features & Benefits

• Fits compatible Fortress aluminum threaded oil caps on 5,200–8,000 lb trailer axles
• Helps restore a tight, leak-free seal for oil bath hub systems
• Protects wheel bearings from water, dirt, and road debris
• Helps maintain proper hub lubrication for smoother, more reliable towing
• Ideal for preventative maintenance and routine hub service
• Durable replacement components designed for long-lasting performance

Ideal Applications

Perfect for equipment trailers, utility trailers, cargo trailers, dump trailers, flatbed trailers, livestock trailers, and RV trailers equipped with compatible Fortress oil bath hub systems.

Don't wait for a leaking hub to leave you stranded. Servicing your oil bath hubs with a quality replacement kit helps extend bearing life, reduce maintenance costs, and keep your trailer towing safely mile after mile. Whether you're preparing for a long haul or performing routine maintenance, the Fortress Aluminum Threaded Cap Service Kit is an essential addition to your trailer maintenance routine.