| Management number | 254487759 | Release Date | 2026/11/07 | List Price | US$76.00 | Model Number | 254487759 | ||
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The Nitto NT421Q is a performance and high-performance, all-season tire manufactured for SUVs. The asymmetric tread pattern features a 3D multi-wave interlocking siping detail which ensures excellent dry, wet and winter weather road gripping ability. Nitto offers a 60,000 miles treadwear warranty with the W speed rated sizes and a 75,000 miles treadwear warranty with the H and V speed rated sizes of this tire model. The NT421Q’s special tread pattern also extends the tire’s usability and tread life. The tread design evenly spreads the driving pressure out across the entire tread area to prevent irregular wear patterns from forming. Uneven tread wear is also combated by the tire’s Maintenance Indicators. The special tread design and the extra strength layer boosts the tire’s handling.
| Tire season | Summer |
|---|---|
| Manufacturer | Nitto |
| Tire width | 245 mm |
| Tire load range | Extra Load |
| Tire load index | 109 |
| Vehicle fitment type | Universal |
| Warranty distance | 75000 miles |
| Is run flat | N |
| Overall diameter | 29.57 in |
| Tire speed rating | H |
| Vehicle type | Car |
| Tire size | 245/60R18 |
| Construction type | Radial |
| Electric vehicle tire | N |
| Automotive parts division | Direct Replacement |
| Wheel diameter | 18 in |
| Flotation tire | N |
| Maximum vehicle rim width | 8.50 |
| Mud & snow rated | N |
| Uniform tire quality grade (utqg) | 640 A A |
| Features | Extra Strength |
| Items included | Tire Only |
| Minimum vehicle rim width | 7.00 |
| Total count | 1 |
| Vehicle class designator | P |
| Tire location | All-Position Tire |
| Tire sidewall style | BW |
| Tire terrain | Highway Terrain |
| Tire diameter | 18 in |
| Compatible cars | Universal |
| Tire type | Passenger Car Tires |
| Model | NT421Q |
| Tread depth | 12.2/32 |
| Maximum inflation pressure | 50 psi |
| Tire aspect ratio | 60 |
| Tire treadwear rating | 640 |
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