Product Overview
The WA14-5051 aluminum hub cap is a 6-hole bolt-on hub cap with viewing window, drain plug, and included gasket used in truck and trailer wheel-end applications.
Built from die-cast aluminum, this hub cap fits hubs with a 5-1/2" bolt circle using (6) 5/16" bolts. It features a 1-15/16" inside depth, 6-1/4" outside diameter, and 4-3/8" inside diameter for proper fitment.
The clear window allows quick inspection of hub lubricant, while the integrated drain plug makes servicing easier without removing the cap. The included gasket ensures a proper seal during installation.
Commonly used as a replacement for Stemco 300-4009 and 340-4009 in oil bath hub applications.
