This is a nut made by General Motors. This item is for the steering knuckle spindle on the front axle wheel bearing on GMC Topkick and Chevrolet Kodiak vehicles from 2003-2009. Fits GMC C4500, C6500, and C7500. This item is no longer available from GM. Replace your old, broken, or missing part from with this brand new factory original part from General Motors.

GM Part # 15125099

This it has been DISCONTINUED by GM.

Alternate GM Part # 15084370

New. Never Installed. OEM Part

Item is number 3 in the GM diagram