1999 Ford Mustang Tire Sizes
The listed tire sizes for the 1999 Ford Mustang are 225/55R16, 245/30R20, 245/35R19, 245/40R18, 245/45R17, and 275/40R17. These are size options associated with the vehicle, not a single size that applies to every Mustang.
The size code identifies the tire’s width, aspect ratio, and wheel diameter. The list includes different wheel diameters and tire dimensions, so the correct fit can vary by year or trim. The provided facts do not connect individual sizes to specific trims, engines, or factory wheel packages.
Check the driver-side door-jamb label or the owner’s manual to confirm the recommended size for your Mustang, especially if its wheels or tires have been changed. If a figure or fitment detail is not listed here, confirm it on the door jamb or in the owner’s manual.
- 225/55R16 · 245/30R20 · 245/40R18 · 275/40R17 · 245/35R19 · 245/45R17 · 205/65R15 · 225/60R15 · 245/50R16
- OEM tire sizes
- Distinct OEM sizes225/55R16 · 245/30R20 · 245/40R18 · 275/40R17 · 245/35R19 · 245/45R17 · 205/65R15 · 225/60R15 · 245/50R16
- Calculated overall diameter25.5–25.8 in
Calculated from catalog valuesOverall diameter is calculated from the stored OEM size string.
| Configuration | Wheel | Tire | Overall diameter | Bolt |
|---|---|---|---|---|
| 3.8i | 6.5×15 | 205/65R15 | 25.5 in | 5x114.3 |
| 3.8i | 7×15 | 225/60R15 | 25.6 in | 5x114.3 |
| 3.8i | 7.5×16 | 225/55R16 | 25.7 in | 5x114.3 |
| 3.8i | 8×17 | 245/45R17 | 25.7 in | 5x114.3 |
| 4.6i | 7.5×16 | 225/55R16 | 25.7 in | 5x114.3 |
| 4.6i | 7.5×16 | 245/50R16 | 25.6 in | 5x114.3 |
| 4.6i | 8×17 | 245/45R17 | 25.7 in | 5x114.3 |
| 4.6i | 8×18 | 245/40R18 | 25.7 in | 5x114.3 |
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This figure is calculated from stored catalog values, not a separate manufacturer field.