Recorded OEM specifications for the 2018 Ford Fiesta, donor years with overlapping ranges, and a calculator to compare a selected wheel. Range overlap is not a guaranteed fit.
Baseline mounting dimensions used for interchange decisions.
Multiple OEM configurations exist for this vehicle. Fitment can vary by trim, brakes, and factory wheel package – confirm your exact setup before buying.
Thread-only product links are shopping examples, not verified fits. Seat style is not confirmed here. As an Amazon Associate we earn from qualifying purchases.
These are vehicle-year records whose recorded OEM ranges overlap this 2018 Ford Fiesta. Overlap is not a guarantee that a specific wheel will install. Selected-wheel comparison is in the calculator below.
Evaluated 20 donor years. Listed 20 eligible overlaps (not all evaluated years are compatible). Showing all listed.
Years grouped because recorded compatibility evidence is equivalent. Each year keeps its own page.
Recorded OEM bolt pattern, center bore, and width/offset ranges overlap. This is not a guarantee that every wheel from the donor year fits this vehicle.
Years grouped because recorded compatibility evidence is equivalent. Each year keeps its own page.
Approximate position vs the mid OEM package: outer change 5 mm, inner change -5 mm. This uses aggregated width/offset ranges, not a specific wheel.
Years grouped because recorded compatibility evidence is equivalent. Each year keeps its own page.
Center-bore records disagree (donor year-level hub 63.3 mm vs trim range 63.4–63.4 mm). Unqualified overlap is not claimed until the conflict is resolved. Approximate position vs the mid OEM package: outer change -7.35 mm, inner change -5.35 mm. This uses aggregated width/offset ranges, not a specific wheel.
Years grouped because recorded compatibility evidence is equivalent. Each year keeps its own page.
Recorded vehicle-side thread for the 2018 Ford Fiesta is M12x1.5. This donor year is recorded as 1/2"-20UNF. That is the vehicle stud/nut thread, not an intrinsic thread stamped on the wheel. Hardware must match this vehicle’s studs and the selected wheel’s seat and engagement. Existing hardware may be reusable if it already matches. Seat style is not in this dataset, so products are not a verified fit.
Donor width/offset sits outside the known OEM envelope for this vehicle. Recorded vehicle-side thread differs (1/2"-20UNF on the donor year vs M12x1.5 on the target vehicle). Hardware must match the target vehicle’s studs and the selected wheel’s seat. Existing hardware may be reusable if it already matches. Seat style is not confirmed in this dataset.
Only years with evidence-based interchange relationships are listed. Adjacent years are not assumed compatible.
Compare a donor vehicle or custom wheel against this 2018 Ford Fiesta. Use Compare in calculator on a donor row above to fill the donor side of this same calculator.
Compare wheel compatibility between two vehicles
2018 Ford Fiesta
Example products matched to recorded thread, hub, or spacer dimensions. They are not verified fits. Confirm seat style, thickness, and clearance before ordering.
M12 x 1.5
M12 x 1.5 · Thread match only; seat style is not verified
View on Amazon →
M12 x 1.5 · Thread match only; seat style is not verified
View on Amazon →
M12 x 1.5 · Thread match only; seat style is not verified
View on Amazon →As an Amazon Associate we earn from qualifying purchases. Product availability and pricing may change.
The values below are provided data points for the 2018 Ford Fiesta. Trims and packages can differ. Do not assume all trims share the same wheel and tire sizes. Always confirm against your door-jamb tire placard, the owner’s manual, or an OEM parts catalog, then verify with the on-page calculator.
| Wheel Hardware | |
|---|---|
| Bolt pattern | 4x108 |
| Center bore | 63.4 mm |
| Thread size | M12 x 1.5 |
| Observed OEM Wheel Example | |
|---|---|
| Rim diameter | 18 in |
| Rim width | 7.0 in |
| Offset | ET 45 mm |
| Backspacing | 5.27 in |
| Observed OEM Tire Example | |
|---|---|
| Section width | 205 mm |
| Aspect ratio | 40 |
| Rim diameter | 17 in |
Note: The wheel and tire examples above do not pair together, which indicates variation by trim or package. Confirm your exact OEM combination on your specific vehicle and use the calculator to model any changes.
Plus sizing changes the wheel diameter and width, then pairs an appropriate tire to keep overall diameter close to stock and maintain clearance. Because 2018 Fiesta trims vary, do not assume any single plus-size will work for all cars.
What is the bolt pattern for the 2018 Ford Fiesta?
The provided data shows 4x108.
What center bore does the 2018 Fiesta use?
63.4 mm. If your aftermarket wheel has a larger bore, use hub-centric rings to 63.4 mm.
What is the OEM thread size?
M12 x 1.5. Verify lug seat style based on your wheel design.
Which wheel offset works on this car?
An observed OEM wheel example is ET45 on a 7.0 in wide rim. Other trims may differ. Use the calculator to model any different offset and verify clearances on your vehicle.
What is the stock tire size?
One observed OEM tire example is 205/40R17 on at least one configuration. Your trim may have a different size. Confirm on your door placard and compare in the calculator.
Can I run wheels with a different center bore?
Yes, if the wheel bore is larger and you use rings to 63.4 mm. A smaller bore will not fit the hub.
Do I need spacers?
Only if required for spoke or strut clearance. Spacers change effective offset and add complexity. If used, choose hub-centric spacers with proper hardware and verify thread engagement. Simulate spacer thickness in the calculator.
What torque should I use on the lug nuts?
Torque specifications can vary by trim and wheel material. Follow the owner’s manual or OEM service information for your exact vehicle.
Will a bigger wheel affect my speedometer?
Speedometer depends on overall tire diameter, not just wheel diameter. Use the calculator to see the percent change and adjust tire size accordingly.
How do I ensure brake caliper clearance?
Use the calculator to estimate inner barrel changes, then physically test fit. Check spoke-to-caliper clearance and rotate the wheel to confirm no contact.
Use the calculator on wheelinterchange.com to verify every proposed change on your exact 2018 Ford Fiesta before you buy. When specs are unknown or vary by trim, confirm with your tire placard, owner’s manual, and OEM parts resources.
Wheel interchange depends on more than bolt pattern. Where data is available, this site compares recorded OEM values:
A normal wheel spacer does not change bolt pattern. Hub rings cannot enlarge a wheel bore that is smaller than the hub. Brake clearance and tire package fitment still require vehicle-specific checks when not confirmed in the dataset.
