2021-2025 GMC Yukon: the quick answer
The 2021-2025 GMC Yukon ships with 275/60R20 tires on the base trim — that's an overall diameter of 33″. The 275 mm width and 60% sidewall ratio give you 165 mm of sidewall cushion between the rim and the road.
Tire fitment
2021-2025 GMC Yukon tire size
The 2021-2025 GMC Yukon base tire size is 275/60R20 — 275 mm wide with a 60% aspect ratio on 20″ rims. 2 OEM sizes are available across trims.
2021-2025 GMC Yukon
275/60R2033″ overall diameter · 165 mm sidewall · ~611 rev/mi
| Trim | Tire size | Rim | Diameter | vs Base |
|---|---|---|---|---|
| SLE/SLT/AT4 ★ | 275/60R20 | 9×20″ | 33″ (838 mm) | — |
| Denali/Denali Ultimate | 275/50R22 | 9×22″ | 32.8″ (833.8 mm) | -0.5% |
Before you buy tires
Match the load index and speed rating from your door-jamb placard — not just the size. If you're switching sizes, keep the overall diameter within ~3% to avoid speedometer error and potential ABS/traction-control issues.
Factory fitment for the 2021-2025 GMC Yukon; verify against your door-jamb placard or owner's manual.
FAQ
What tire size does the 2021-2025 GMC Yukon use?
The base 2021-2025 GMC Yukon uses 275/60R20 tires — 275 mm wide, 60% aspect ratio, on 20-inch rims. The overall diameter is 33″ (838 mm). Higher trims use different sizes — see the table above. Confirm against your door-jamb placard.
Can I use a different tire size on my Yukon?
Yes, within limits. Keep the overall diameter within about 3% of 33″ to avoid speedometer error and clearance issues. A wider tire may improve grip, but match the load and speed ratings your Yukon requires.
What is the overall diameter of 275/60R20 tires?
275/60R20 tires have an overall diameter of 33″ (838 mm), with a 165 mm sidewall height. That's about 611 revolutions per mile.
The 2021-2025 GMC Yukon tire sizes shown are OEM factory fitments. Confirm your exact tire size, load rating, and speed rating against the door-jamb placard or owner's manual before buying tires.