Ford F-350 IV (P558)
2020–2023 9 trimsF-350 6.2i 4x2 SRW 385 hp · 6.2L V8 Flex-Fuel 245/75R17 121S 4 fitments
- Generation
- P558 Super Duty Facelift · 2020–2023
- Power
- 385 hp
- Engine
- 6.2L V8 Flex-Fuel
- Center bore
- 124.9 mm
- Bolt pattern
- 8x170
- Thread
- M14 x 1.5
| Tire size | Rim size and bolt pattern | Pressure, psi |
|---|---|---|
| 245/75R17 121S | Rim 17x7.5 ET40 | 80 psi |
| 275/65R18 123S | Rim 18x8 ET40 | 80 psi |
| 275/65R18 123S | Rim 18x8 ET40 | 80 psi |
| 265/70R17 121R | Rim 17x7.5 ET40 | 80 psi |
How to read 121S: 121 is the load index (up to 3,197 lb / 1,450 kg per tire) and S the speed rating (up to 112 mph / 180 km/h). ET40 is the wheel offset: how far the mounting face sits from the rim centre, in millimetres.
F-350 6.2i 4x4 SRW 385 hp · 6.2L V8 Flex-Fuel 245/75R17 121S 6 fitments
- Generation
- P558 Super Duty Facelift · 2020–2023
- Power
- 385 hp
- Engine
- 6.2L V8 Flex-Fuel
- Center bore
- 124.9 mm
- Bolt pattern
- 8x170
- Thread
- M14 x 1.5
| Tire size | Rim size and bolt pattern | Pressure, psi |
|---|---|---|
| 245/75R17 121S | Rim 17x7.5 ET40 | 80 psi |
| 275/70R18 125R | Rim 18x8 ET40 | 80 psi |
| 275/65R20 126R | Rim 20x8 ET40 | 80 psi |
| 265/70R17 121R | Rim 17x7.5 ET40 | 80 psi |
| 275/70R18 125R | Rim 18x8 ET40 | 80 psi |
| 285/75R18 129Q | Rim 18x8 ET40 | 58 psi |
How to read 121S: 121 is the load index (up to 3,197 lb / 1,450 kg per tire) and S the speed rating (up to 112 mph / 180 km/h). ET40 is the wheel offset: how far the mounting face sits from the rim centre, in millimetres.
F-350 6.2i DRW +2 variants 385 hp · 6.2L V8 Flex-Fuel 245/75R17 118S 1 fitment
Same tires and wheels on: 6.7D DRW, 7.3 DRW
- Generation
- P558 Super Duty Facelift · 2020–2023
- Power
- 385 hp
- Engine
- 6.2L V8 Flex-Fuel
- Center bore
- 142 mm
- Bolt pattern
- 8x200
- Thread
- M14 x 1.5
| Tire size | Rim size and bolt pattern | Pressure, psi |
|---|---|---|
| 245/75R17 118S | Rim 17x6.5 ET142 | 80 psi |
How to read 118S: 118 is the load index (up to 2,910 lb / 1,320 kg per tire) and S the speed rating (up to 112 mph / 180 km/h). ET142 is the wheel offset: how far the mounting face sits from the rim centre, in millimetres.
F-350 6.7D 4x2 SRW +1 variant 475 hp · 6.7L V8 · Diesel 245/75R17 121S 4 fitments
Same tires and wheels on: 7.3 4x2 SRW
- Generation
- P558 Super Duty Facelift · 2020–2023
- Power
- 475 hp
- Engine
- 6.7L V8, Diesel
- Center bore
- 124.9 mm
- Bolt pattern
- 8x170
- Thread
- M14 x 1.5
| Tire size | Rim size and bolt pattern | Pressure, psi |
|---|---|---|
| 245/75R17 121S | Rim 17x7.5 ET40 | 80 psi |
| 275/65R18 123S | Rim 18x8 ET40 | 80 psi |
| 275/65R18 123S | Rim 18x8 ET40 | 80 psi |
| 265/70R17 | Rim 17x7.5 ET40 | 80 psi |
How to read 121S: 121 is the load index (up to 3,197 lb / 1,450 kg per tire) and S the speed rating (up to 112 mph / 180 km/h). ET40 is the wheel offset: how far the mounting face sits from the rim centre, in millimetres.
F-350 6.7D 4x4 SRW +1 variant 475 hp · 6.7L V8 · Diesel 245/75R17 121S 6 fitments
Same tires and wheels on: 7.3 4x4 SRW
- Generation
- P558 Super Duty Facelift · 2020–2023
- Power
- 475 hp
- Engine
- 6.7L V8, Diesel
- Center bore
- 124.9 mm
- Bolt pattern
- 8x170
- Thread
- M14 x 1.5
| Tire size | Rim size and bolt pattern | Pressure, psi |
|---|---|---|
| 245/75R17 121S | Rim 17x7.5 ET40 | 80 psi |
| 275/70R18 | Rim 18x8 ET40 | 80 psi |
| 275/65R20 | Rim 20x8 ET40 | 80 psi |
| 265/70R17 | Rim 17x7.5 ET40 | 80 psi |
| 275/70R18 | Rim 18x8 ET40 | 80 psi |
| 285/75R18 129Q | Rim 18x8 ET40 | 58 psi |
How to read 121S: 121 is the load index (up to 3,197 lb / 1,450 kg per tire) and S the speed rating (up to 112 mph / 180 km/h). ET40 is the wheel offset: how far the mounting face sits from the rim centre, in millimetres.
