81mm 3.19in Push Through Center Cap Chrome Carbon Steel (Iron) Available – (20274071+20220970)x1

Notice:
1.The center cover can be removed. Material of the cover: plastic ABS
Center cover function: to facilitate lubrication of trailer bearings

2. The labeling needs to be installed on the Center Cap by itself

aim of design:
Some trailers will have the easy lube axle. What that does is they allow you to pump grease into the bearings without having to remove the whole hub from the axle.Once you need to get to your easy lube axles just put a screwdriver under there, pop that center cap out without having to take the wheels and tires off you’ll be able to access that and grease the bearings on your trailer.

A Wheel hub cover height: 92mm（3 19/32in）
B maximum diameter of hub cover:86mm(3 3/8in)
C barrel diameter: 81mm(3 3/16in)
D barrel height: 89mm(3 1/2in)
E barrel inner diameter: 79mm(3 3/32in)
F Labeling diameter: 51mm(2in)

• Material： Carbon steel +ABS plastic +Aluminum

• Installation：Push-through
•Fit for 3.19″ trailer/truck rims center bore,3.62″ tall

Installation method:

How to Measure: