2013 Ford Flex Wheel Interchange

2013 Ford Flex Wheel Fitment Guide

Known OEM Fitment For 2013 Ford Flex

The following specifications are the known fitment values provided for the 2013 Ford Flex. They may not represent every trim, package, or factory wheel option. Confirm the specifications on your vehicle before purchasing wheels or tires.

There is an apparent diameter mismatch in the supplied data: the known rim diameter is listed as 18 inches, while the tire rim diameter is listed as R19. A tire marked 235/55R19 is designed for a 19-inch wheel and cannot be installed on an 18-inch wheel. Verify the tire sidewall, wheel markings, door-jamb label, owner documentation, and OEM records before using these values. Do not treat the 18-inch and R19 entries as one confirmed wheel-and-tire package.

How To Use The Wheel Interchange Calculator

Use the calculator to compare a donor vehicle's wheels with the wheels being installed on your 2013 Ford Flex. Enter the donor specifications under “Wheels from” and your Ford Flex information under “Installed on.” Compare bolt pattern, center bore, wheel diameter, width, offset, and tire dimensions rather than relying on a shared model name or year alone.

The calculator also allows custom wheel and tire entries. Use “Custom wheel size” to adjust rim diameter, rim width, and offset. Use “Custom tire size” to adjust section width and aspect ratio. When you change the rim diameter, the calculator updates the tire diameter in the comparison, which is useful when evaluating plus-size or replacement-wheel combinations.

Because the supplied Ford Flex data includes both an 18-inch wheel value and a 19-inch tire rim value, run both entries only after confirming which size is actually on your vehicle. The calculator is a comparison aid, not a substitute for checking clearance, load rating, tire pressure requirements, and OEM approval information.

Fitment Checklist Before You Buy

Start with the five-lug 5x114.3 bolt pattern and confirm that the replacement wheel is intended for the correct fastener type. A wheel with a different bolt pattern must not be forced onto the vehicle.

Check the 63.4 mm center bore. A wheel with a smaller center bore will not seat over the vehicle hub. A larger bore may require properly sized hub-centric rings, if appropriate for the wheel design, while the wheel still must meet all other fitment requirements.

Compare the wheel's diameter, width, and offset with the calculator. Offset changes the wheel's position relative to the suspension and fender. Excessive changes can cause inner suspension contact, outer fender contact, altered steering behavior, or inadequate brake clearance.

Confirm that the tire's rim diameter matches the wheel. Also verify tire load index, speed rating, overall diameter, tread clearance, and the vehicle's recommended cold inflation pressure. The 235/55R19 entry supplied here should not be paired with an 18-inch wheel.

Inspect the wheel for its load rating and confirm that the replacement tire and wheel assembly is suitable for the vehicle's weight. If the donor vehicle, trim, brake package, or wheel design is unknown, confirm clearance with the wheel manufacturer and an OEM source before ordering.

Plus Sizing And Common Upgrades

Plus sizing generally means using a larger wheel diameter with a lower-profile tire while maintaining a similar overall tire diameter. This can affect ride comfort, impact resistance, steering feel, speedometer accuracy, and wheel protection. A larger wheel is not automatically a safe or compatible upgrade.

Use the calculator to compare custom wheel diameter, width, and offset, then adjust the tire section width and aspect ratio. Watch for meaningful changes in overall diameter and sidewall height. Confirm that the selected tire is approved for the wheel width and that the complete assembly clears the brakes, struts, suspension, steering components, and bodywork throughout the full range of steering and suspension travel.

No specific alternate wheel or tire package is confirmed by the supplied data. Treat any proposed upgrade as unverified until the calculator, wheel manufacturer, tire manufacturer, and OEM documentation agree.

Installation Tips

Before installation, clean the hub mounting surface and the wheel's mating surface. Remove rust, dirt, and loose corrosion without removing metal that affects fitment. Test-fit one front and one rear wheel, if applicable, before mounting all four.

Check inner and outer clearance with the steering turned fully left and right. Verify clearance around brake calipers, struts, tie-rod ends, control arms, and fenders. After lowering the vehicle, recheck for contact and confirm that no wheel is resting against a suspension or body component.

Use the correct M12 x 1.5 lug hardware only if the replacement wheel is designed for that hardware. Lug-seat shape, thread engagement, shank length, and washer requirements can vary by wheel. Do not assume the original lug nuts fit an aftermarket wheel.

Tighten lug nuts in a star pattern with a calibrated torque wrench using the vehicle or wheel manufacturer's torque specification. Recheck torque after the first short drive and again according to the wheel manufacturer's instructions. If vibration, pulling, rubbing, or abnormal noise occurs, stop driving and inspect the installation.

Tools And Helpful Supplies

Useful supplies include a calibrated torque wrench, an appropriate socket, a jack and jack stands or an approved lift, a tire pressure gauge, and a way to verify wheel clearance. Use jack stands or a lift rated for the vehicle, and never work under a vehicle supported only by a jack.

• Automotive torque wrench for controlled lug-nut tightening.
• Tire pressure gauge for checking cold inflation pressure.

Wheel spacers, adapter plates, and nonstandard lug hardware should not be used as a shortcut for incorrect fitment. If any component is required, confirm its specifications, load rating, installation method, and compatibility with the wheel and vehicle from the manufacturer.

FAQs

What is the bolt pattern for the 2013 Ford Flex?

The supplied bolt pattern is 5x114.3. Confirm the replacement wheel uses this pattern and is designed for the vehicle's wheel fasteners.

What is the center bore listed for the 2013 Ford Flex?

The supplied center bore is 63.4 mm. A smaller wheel bore will not fit over the hub, while a larger bore may require correctly sized hub-centric rings when appropriate.

What lug thread size is provided for this Ford Flex?

The supplied thread size is M12 x 1.5. Thread size alone does not confirm lug-nut compatibility because the lug-seat design and required hardware dimensions must also match the wheel.

Is the supplied wheel size 18 inches or 19 inches?

The supplied OEM fitment data lists an 18-inch rim diameter, but it also lists a tire rim diameter of R19. These entries conflict. Check the wheel stamp, tire sidewall, door-jamb label, owner documentation, and OEM sources before selecting a replacement. An 18-inch wheel cannot use an R19 tire.

Can I use any 5x114.3 wheel on a 2013 Ford Flex?

No. Bolt pattern is only one part of fitment. You must also check center bore, diameter, width, offset, brake clearance, load rating, lug hardware, and tire compatibility. Use the on-page calculator for comparisons, then physically or professionally verify clearance.

What wheel offset is listed for this vehicle?

The supplied offset is ET39, or 39 mm, with a supplied backspacing value of 5.29 inches. Different offset or width changes the wheel's position and may create clearance or handling issues, so compare the complete wheel dimensions rather than offset alone.

Where can I confirm the correct factory wheel and tire size?

Check the tire and wheel markings, the driver's door-jamb label, the owner's manual, official OEM service information, and a Ford dealer or qualified tire professional. If these sources disagree, do not purchase until the correct specification is confirmed.