What size tires fit a 2018 Chevrolet Silverado 1500?

The 2018 Chevrolet Silverado 1500 uses P275/55R20 111T as the OEM tire size.

What tire pressure should a 2018 Chevrolet Silverado 1500 have?

The recommended tire pressure for the 2018 Chevrolet Silverado 1500 is 35 PSI front and 35 PSI rear (cold).

Can I use a different tire size on my 2018 Chevrolet Silverado 1500?

It is recommended to use the OEM size P275/55R20 111T. Alternative sizes may affect speedometer accuracy, handling, and clearances.

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DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.

2018 Chevrolet Silverado 1500Tire Size & Pressure

OEM spec from the factory service manual for the Custom, 4D Pickup Crew Cab, 4.3L Eng VIN H, 4WD, Automatic T/Case Control variant.

Quick Answer

OEM Tire Size

P275/55R20 111T

Pressure (Front / Rear)

35 / 35 PSI

Load Index

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Frequently Asked Questions

What size tires fit a 2018 Chevrolet Silverado 1500?: The 2018 Chevrolet Silverado 1500 uses P275/55R20 111T as the OEM tire size.
What tire pressure should a 2018 Chevrolet Silverado 1500 have?: The recommended tire pressure for the 2018 Chevrolet Silverado 1500 is 35 PSI front and 35 PSI rear (cold).
Can I use a different tire size on my 2018 Chevrolet Silverado 1500?: It is recommended to use the OEM size P275/55R20 111T. Alternative sizes may affect speedometer accuracy, handling, and clearances.