4” Universal Threaded Hub Cap, Fits 9K (after 10-1-89), 10K, 12K, and 15K axles. Aluminum Alloy body, designed for grease and/or oil bath applications. Oil level indicating window and magnetic vent plug that removes metallic particles. Easy access drain port / fill port.
- Plug, seals & hardware included
- 1/8”-27 NPTF plug included
- 4” Machined Threads
- Replaces Dexter 21-36, ST-400 prior 08/2019
- 9,000-lb Axles manufactured after October 1, 1989
- 10,000-lb Axles
- 12,000-lb and 15,000-lb Heavy-duty axles
Each Hub Cap contains:
- (1) hub cap
- (1) gasket
- (1) lens
- (1) retainer ring
- (1) foam gasket
- (6) Torx Screws
- (1) magnetic vent plug
- (1) 1/8 -27 Plug
- (1) O-Ring
Frequently Asked Questions
Q; What is a universal threaded hub cap?
A: A threaded hub cap that replaces standard factory plastic oil bath caps.
Q: Can I convert oil bath hubs to grease filled hubs with universal hub caps?
A: Yes, universal hub caps are both grease/oil bath compatible.
Q: Will this work on my trailer hub?
A: Please refer to the Universal Oil Caps Reference table for fitment information.