Valcrum Aluminum Oil Cap 9K, 10K, 12K, and 15K axles.
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 Thread
Replaces Dexter 21-36, ST-400 prior 08/2019
9,000-lb Axles manufactured from October 1989 to July 2009
10,000-lb Axles manufactured prior to July 2009
12,000-lb and 15,000-lb Heavy-duty axles