2009 Ford Expedition Tire Sizes
The 2009 Ford Expedition tire sizes listed here are 255/70R18, 265/70R17, and 275/55R20. The figures identify tire dimensions; the numbers and letter codes describe the tire’s width, aspect ratio, construction, and wheel diameter. Match the full size marking, not just the wheel diameter, when checking a replacement.
The listed sizes vary, so the correct fit depends on the particular Expedition configuration. These facts do not identify which size applies to each trim or engine, or provide load and pressure ratings. Check the tire placard on the driver’s door jamb or the owner’s manual to confirm the size and required ratings for your vehicle. Do not assume that every listed size is suitable for every 2009 Expedition.
- 255/70R18 · 265/70R17 · 275/55R20
- OEM tire sizes
- Distinct OEM sizes255/70R18 · 265/70R17 · 275/55R20
- Calculated overall diameter31.6–32.1 in
Calculated from catalog valuesOverall diameter is calculated from the stored OEM size string.
| Configuration | Wheel | Tire | Overall diameter | Bolt |
|---|---|---|---|---|
| 5.4i | 7.5×17 | 265/70R17 | 31.6 in | 6x135 |
| 5.4i | 8×17 | 265/70R17 | 31.6 in | 6x135 |
| 5.4i | 8.5×18 | 255/70R18 | 32.1 in | 6x135 |
| 5.4i | 8.5×20 | 275/55R20 | 31.9 in | 6x135 |
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This figure is calculated from stored catalog values, not a separate manufacturer field.