GM Genuine Parts Rear Wheel Hub
OE
Pack of 1

GM Genuine Parts Rear Wheel Hub

GM Part #86531603

ACDelco Part #86531603

MSRP$143.62*

GM Genuine Parts Wheel Hubs are designed, engineered, and tested to rigorous standards, and are backed by General Motors.

  • Helps dampen the amount of friction where the axle meets the wheel
  • Features greased bearings
  • Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE)

Pack of 1

About this product

GM Genuine Parts Wheel Hubs are designed, engineered, and tested to rigorous standards, and are backed by General Motors. These hubs serve as the main support for your vehicle's wheel and tire and are responsible for their smooth and quiet rotation.GM Genuine Parts are the true OE parts installed during the production of or validated by General Motors for GM vehicles. Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE).

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  • Helps dampen the amount of friction where the axle meets the wheel
  • Features greased bearings
  • Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE)
  • GM Genuine Parts are designed, engineered and tested to rigorous standards, and are backed by General Motors
  • GM Engineers design and validate OE parts specifically for your Chevrolet, Buick, GMC, or Cadillac vehicle
  • GM regularly updates production and service part designs to integrate new materials and technologies

Flange IncludedYes
Inside Diameter1.5 in / 38.3 mm
Outside Diameter4.25 in / 108 mm
ClassificationOE
Hub Pilot Diameter3.59 in / 91.25 mm
Wheel Pilot Diameter2.63 in / 66.84 mm
Wheel Stud Size0.55 in / 14 mm
Flange Diameter6.18 in / 157 mm
Brake Pilot Diameter2.65 in / 67.33 mm
Flange Offset1.18 in / 30.06 mm
Flange Bolts IncludedYes
Wheel Studs IncludedYes
Spline Quantity33
Integrated Hub UnitYes
Bearing TypeBall
Flange Bolt Hole Diameter0.6 in / 15.4 mm
Flange Bolt Hole Quantity6
Wheel Stud Quantity6
Flange ShapeCircular
Drive TypeDriven

Limited Lifetime Warranty for Parts (plus Labor if installed by a GM dealer)

Please visit our warranty page on Gmparts.com for full warranty details.

Tighten the wheel hub axle nut to recommended specs, overtightening may cause premature wear to the hub assembly

  • Do not operate vehicle with a worn wheel hub assembly
  • For bearings that are bolted onto knuckles, apply GM-recommended grease between bearing knuckle pilot and knuckle bore for easy of future removal. Take special care to avoid getting grease in the threads.

Signs of wear for wheel hubs include but are not limited to:

  • Grinding when the vehicle is in motion
  • Knocking or clunking
  • Humming, rumbling, squealing, roaring or growling
  • Looseness
  • ABS, Traction control, Stability control light
  • Wheel vibration and/or wobble

ModelBody StyleTrimYear(s)
OPTIQLuxury, Premium Luxury, Premium Sport, Sport2026, 2027