1 Single, GMC Sierra 2500, 3500 SRW (Single Rear Wheel) 2015-2019, Snap On OEM Chrome Hubcap / Center Cap for 18 Inch Chrome Wheels. Often Referred to as a Center Cap, Axle Cover or Hubcap; Our OEM Center Caps are Brand New, Manufactured Using Quality Automotive Grade ABS Plastic For Long Term Durability. OEM Replacement, Manufactured by GMC. GMC Part Number 22909150. GMC Indent Number 22910735. Quality Automotive Grade ABS for Outstanding Strength and Durability. Quick and Easy to Install. Fits 18 Inch, 8 Lug, Chrome Wheel Pictured. 6 3/4 Inch Diameter 1 Single Center Cap.