IVECO double-row bearing.
For 21214, Chevy NIVA 4x4 with/without ABS produced before year 2004.
For installation on 21214, 2131 before year 2009 installation of 2 bottom 2123 ball-joints is required.
Long-life comparing to original hubs.
Doesn't require any adjustment.
Double dirt/dust/water protection/
Some fuel economy.
Less noise from transmission.