Choosing tires for a 2017 Ford Explorer Platinum starts with exact fitment, not with a familiar brand name or a long mileage warranty. Many Explorer Platinum models are associated with a 255/50R20 tire size, but you should confirm the specification printed on your own driver-side Tire and Loading Information label before ordering. The replacement tire must also meet the required load index, speed rating, construction, and tire type.
Quick Verdict: The safest buying approach is to shop using the complete service description on your Explorer’s door-jamb tire placard. Do not assume that another tire marketed for an Explorer, SUV, or 20-inch wheel is automatically compatible. None of the supplied product listings provided a confirmed direct-size match for the target vehicle, so this guide does not present them as recommended replacements.
2017 Ford Explorer Platinum Tire Fitment at a Glance
| Fitment Item | What to Check | Why It Matters |
|---|---|---|
| Tire size | Confirm the size on the driver-door or B-pillar label. Many Platinum models use 255/50R20, but the vehicle label is the final reference. | Width, sidewall height, and wheel diameter affect clearance, handling, gearing, and speedometer accuracy. |
| Load index | Match or exceed the numeric load index specified for the vehicle. | An insufficient load rating can reduce stability and increase heat and wear under passengers, cargo, or towing loads. |
| Speed symbol | Match or exceed the alphabetical speed symbol on the original specification. | The speed symbol is part of the tire’s complete service description and should not be confused with its load index. |
| Tire category | Choose all-season, all-weather, or winter tires according to your climate and driving conditions. | The category affects cold-weather flexibility, snow traction, wet braking, tread life, and road noise. |
| Cold pressure | Use the cold inflation pressure on the vehicle label, not the maximum pressure molded on the tire sidewall. | Correct pressure supports the intended contact patch, handling, comfort, fuel economy, and load capacity. |
Why Exact Tire Fitment Matters
A tire may have excellent wet traction, a quiet tread pattern, and a strong warranty but still be unsuitable for your Explorer. The complete size code controls more than wheel diameter. Changing the sidewall ratio or wheel size also changes the tire’s overall diameter and revolutions per mile.
A meaningful diameter change can alter speedometer accuracy, effective gearing, ride height, wheel-well clearance, and the way vehicle systems interpret wheel speed. A different wheel diameter also requires a different wheel; an 18-inch or 17-inch tire cannot mount on a 20-inch rim.
Ford advises owners to replace tires with the same size, load index, speed rating, and type as the original equipment unless an alternative has been properly approved. A qualified tire professional should evaluate any proposed plus-size, minus-size, or alternate-wheel setup before purchase or installation.
Fitment Note: Do not rely only on an online “fits your vehicle” message. Compare the complete sidewall code with the driver-door placard, confirm the wheel diameter, and have the installer verify clearance and service-description requirements.
How to Choose Tires for a 2017 Ford Explorer Platinum
1. Confirm the Door-Jamb Tire Label
Open the driver’s door and locate the Tire and Loading Information label on the door edge or B-pillar. Record the complete front and rear tire specifications and the recommended cold inflation pressure. Do this even when an online catalog supplies a suggested size, because factory equipment, wheel packages, and previous-owner modifications can differ.
If the current tires do not match the placard, do not assume the current setup is correct. Ask a Ford dealer or qualified tire shop to confirm the wheel specifications and whether an approved alternate fitment has been installed.
2. Understand the Complete Service Description
A code such as 255/50R20 describes the tire’s nominal width, sidewall aspect ratio, radial construction, and wheel diameter. A separate number-and-letter combination identifies its load index and speed symbol.
- 255: Nominal section width in millimeters.
- 50: Sidewall height expressed as a percentage of the section width.
- R: Radial construction.
- 20: Required wheel diameter in inches.
- Load index: Numeric code representing load-carrying capacity under specified conditions.
- Speed symbol: Letter representing the tire’s tested speed category under specified conditions.
Do not treat the load index and speed symbol as optional upgrades. The replacement should meet or exceed the specification required by the vehicle while remaining compatible with its wheel and recommended pressure.
3. Choose All-Season, All-Weather, or Winter Tires
All-season tires are generally designed for balanced dry and wet performance, long tread life, and occasional light-snow use. They are a practical choice for moderate climates where prolonged ice, deep snow, and severe cold are uncommon.
All-weather tires are intended to provide stronger cold-weather and snow capability while remaining usable throughout the year. Look for the Three-Peak Mountain Snowflake symbol when severe-snow qualification matters.
Dedicated winter tires are the stronger choice for repeated driving in freezing temperatures, packed snow, or ice. They use cold-weather compounds and tread features intended for winter conditions, but they normally wear faster in warm weather and require seasonal storage and changeovers.
Snow-Traction Note: An M+S marking indicates limited mud-and-snow intent. It is not the same as the Three-Peak Mountain Snowflake symbol used for tires that meet an industry severe-snow performance definition.
4. Prioritize Wet Braking and Hydroplaning Resistance
The Explorer is a relatively heavy family SUV, so predictable wet-road behavior should be a major selection factor. Look for circumferential grooves that move water away from the contact patch, lateral channels that support water evacuation, and siping that provides additional biting edges.
Do not judge wet performance from tread appearance alone. Compare independent tire tests when available, paying attention to wet braking distance, wet handling, and hydroplaning resistance in the exact tire category and size being considered.
5. Balance Ride Comfort, Road Noise, and Steering Response
A touring-oriented tire may suit drivers who prioritize a calm cabin and a softer highway ride. Performance-oriented all-season tires may deliver sharper steering and cornering response but can trade some comfort, tread life, or winter capability.
Variable-pitch tread designs can help reduce repetitive tread noise. Sidewall construction, load range, tread depth, inflation pressure, road surface, alignment, and wear pattern also influence how quiet and comfortable a tire feels.
6. Evaluate Treadwear Warranties Carefully
A mileage warranty is a limited manufacturer benefit, not a promise that every tire will reach the stated mileage. Coverage commonly depends on proper inflation, rotation records, alignment, even wear, eligible vehicles, and other conditions in the written warranty.
Compare the warranty only after confirming fitment and performance needs. A longer warranty has little value if the tire is poorly suited to your climate, driving style, towing use, or preferred ride quality.
7. Check the DOT Date Code and Tire Condition
The final four digits of a tire’s DOT identification number show its manufacturing week and year. For example, a code ending in 2525 indicates production during the twenty-fifth week of 2025.
Inspect tires regularly for cracking, bulges, cuts, punctures, exposed material, uneven wear, vibration, or other damage. Tread depth is not the only replacement factor; age, heat exposure, storage, impacts, inflation history, and operating conditions can also affect serviceability.
8. Plan for Installation, Alignment, and Rotation
Budget for professional mounting, balancing, valve-service needs, disposal fees, and an alignment inspection when appropriate. Uneven wear, steering pull, vibration, or recent pothole impacts can indicate an alignment, balance, wheel, or suspension issue that should be addressed before it damages a new set.
Follow the rotation pattern and interval recommended for the vehicle and tire. Consistent rotation and pressure checks help promote even wear, but they cannot correct an existing alignment or mechanical problem.
Before You Buy Checklist
- Read the complete tire size and service description from the driver-door placard.
- Confirm that the tire is made for the exact wheel diameter.
- Match or exceed the required load index and speed symbol.
- Choose a tire category appropriate for your climate.
- Check whether severe-snow capability and the 3PMSF symbol are needed.
- Compare wet braking, road noise, comfort, and treadwear rather than warranty mileage alone.
- Read the complete manufacturer warranty and road-hazard terms.
- Confirm whether the listing is for one tire or a complete set.
- Ask the installer about mounting, balancing, alignment, valve service, and disposal costs.
- Use the vehicle placard’s cold pressure after installation.
Frequently Asked Questions
What Size Tires Does a 2017 Ford Explorer Platinum Use?
Many 2017 Explorer Platinum vehicles are associated with 255/50R20 tires, but you should verify the complete specification on your own driver-side Tire and Loading Information label. The label accounts for the vehicle’s original equipment and is more reliable than a generic model-year lookup.
Can I Install a Different Tire Size?
Only after a qualified tire professional confirms the alternate wheel-and-tire combination. The proposed setup must maintain suitable load capacity, wheel compatibility, clearance, overall diameter, steering and suspension operation, and vehicle-system compatibility. Do not substitute another size solely because its width or wheel diameter appears similar.
What Do Load Index and Speed Rating Mean?
The load index is a numeric code tied to the tire’s load-carrying capacity under specified conditions. The speed rating is an alphabetical symbol tied to a tested speed category. A replacement tire should meet or exceed both requirements shown for the vehicle, but a higher rating does not increase the vehicle’s payload or legal operating speed.
Is M+S the Same as a Winter Rating?
No. M+S indicates limited mud-and-snow intent and is commonly found on ordinary all-season tires. The Three-Peak Mountain Snowflake symbol identifies a tire that meets an industry severe-snow performance definition. Drivers facing regular ice, deep snow, or prolonged freezing temperatures may still benefit from dedicated winter tires.
Should I Use the Pressure Printed on the Tire Sidewall?
No. The sidewall figure is a tire limit associated with its maximum-load information, not necessarily the correct operating pressure for your Explorer. Inflate the tires to the cold pressure printed on the vehicle’s Tire and Loading Information label unless Ford provides different instructions for a specific operating condition.
Can I Mix Tire Brands or Models?
A matching set is the preferred approach because tires can differ in construction, tread depth, traction, handling, and rolling circumference even when their printed size is the same. Avoid mixing sizes, service descriptions, constructions, or tire categories. When replacing fewer than four tires, follow Ford’s guidance and obtain advice from a qualified installer, especially for an all-wheel-drive vehicle.
Should I Replace Two Tires or All Four?
Replacing all four provides the most consistent traction and handling. When only two are replaced, the remaining tires must be compatible and have adequate tread and condition. The installer should follow the vehicle and tire manufacturers’ placement guidance and confirm that tread-depth differences are acceptable for the drivetrain.
When Should the Tires Be Replaced?
Replace a tire when it reaches its wear indicators, has non-repairable damage, develops cracks or bulges, shows exposed material, or is judged unsafe by a qualified tire professional. Also consider age and service history, even when visible tread remains.
Final Recommendation
Start with the placard, not the product title. Confirm the exact tire size, load index, speed symbol, tire type, and cold pressure required by your 2017 Ford Explorer Platinum. Then compare direct-fit tires according to your climate, wet-road needs, comfort preference, treadwear expectations, and written warranty.
Do not purchase an off-size tire because it is described as suitable for SUVs or another Explorer trim. When the listing does not match the complete factory specification, have the proposed fitment approved by a Ford dealer or qualified tire professional before ordering.
