81mm 3.19 Trailer Center Caps for 3.19″ B 3.62″ H Detachable Top Cap Truck Hub Caps – 20274071

81mm 3.19 Trailer Center Caps for 3.19″ B 3.62″ H Detachable Top Cap Truck Hub Caps

The 3.19 trailer center caps fit 3.19″ center bore 3.62″ high truck hubcaps. The most interesting design of the 3.19 trailer center caps is that they have a removable hubcap on top so that the axle can be greased without needing the entire rim.

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

Aim of Design:
Some trailers will have the easy lube axle. That allows you to pump grease into the bearings without removing the whole hub from the axle. Once you need to get to your easy lube axles just put a screwdriver under there, and 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)

• Material： Carbon steel +ABS plastic

• Installation：Push-through

•Fit for 3.19″ trailer/truck rims center bore,3.62″ tall
•Fit for  Chaparral boat trailer / RV camp trailer

Installation method:

How to Measure: