2008 Hummer H3 Tire Size & Pressure

The 2008 Hummer H3 tire size depends on trim: the Alpha takes P265/75R16 114S; the Base, Automatic takes P265/65R18 112S; the Base, Standard takes P265/65R18 112S, per the factory service manual.

Factory-Spec Tire Size
Varies by trim
  • Alpha: P265/75R16 114S
  • Base, Automatic: P265/65R18 112S
  • Base, Standard: P265/65R18 112S

Alpha

Tire Specifications

PositionTire SizePressureLoad IndexSpeed Rating
AllP265/75R16 114SDoor Placard——

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Retailer searches do not verify vehicle fitment. Check the driver's door placard and wheel setup before ordering.

Base, Automatic

Tire Specifications

PositionTire SizePressureLoad IndexSpeed Rating
AllP265/65R18 112SDoor Placard——
AllP265/75R16 114SDoor Placard——

Search by this configuration

Retailer searches do not verify vehicle fitment. Check the driver's door placard and wheel setup before ordering.

Base, Standard

Tire Specifications

PositionTire SizePressureLoad IndexSpeed Rating
AllP265/65R18 112SDoor Placard——
AllP265/75R16 114SDoor Placard——

Search by this configuration

Retailer searches do not verify vehicle fitment. Check the driver's door placard and wheel setup before ordering.

Frequently Asked Questions

What size tires does a 2008 Hummer H3 take?

It depends on the trim: Alpha uses P265/75R16 114S; Base, Automatic uses P265/65R18 112S; Base, Standard uses P265/65R18 112S.

What is the tire pressure for a 2008 Hummer H3?

Refer to the tire pressure placard on your vehicle's driver side door jamb for exact cold inflation pressures.

What is the bolt pattern on a 2008 Hummer H3?

Bolt pattern data is available in the factory service manual.

Other Hummer H3 Years

Other Hummer Models