Tire fitment
The 2025-2026 Toyota 4Runner base tire size is 245/70R17 — 245 mm wide with a 70% aspect ratio on 17″ rims. 3 OEM sizes are available across trims.
2025-2026 Toyota 4Runner
245/70R1730.5″ overall diameter · 171.5 mm sidewall · ~661 rev/mi
| Trim | Tire size | Rim | Diameter | vs Base |
|---|---|---|---|---|
| SR5 ★ | 245/70R17 | 7×17″ | 30.5″ (774.8 mm) | — |
| TRD Off-Road/Limited | 265/70R18 | 7.5×18″ | 32.6″ (828.2 mm) | +6.89% |
| Platinum | 265/55R20 | 8×20″ | 31.5″ (799.5 mm) | +3.19% |
The 2025-2026 Toyota 4Runner ships with 245/70R17 tires on the base trim — that's an overall diameter of 30.5″. The 245 mm width and 70% sidewall ratio give you 171.5 mm of sidewall cushion between the rim and the road.
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 2025-2026 Toyota 4Runner; verify against your door-jamb placard or owner's manual.
The base 2025-2026 Toyota 4Runner uses 245/70R17 tires — 245 mm wide, 70% aspect ratio, on 17-inch rims. The overall diameter is 30.5″ (774.8 mm). Higher trims use different sizes — see the table above. Confirm against your door-jamb placard.
Yes, within limits. Keep the overall diameter within about 3% of 30.5″ to avoid speedometer error and clearance issues. A wider tire may improve grip, but match the load and speed ratings your 4Runner requires.
245/70R17 tires have an overall diameter of 30.5″ (774.8 mm), with a 171.5 mm sidewall height. That's about 661 revolutions per mile.
The 2025-2026 Toyota 4Runner 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.