2018 Ford Transit Tire Size, Pressure & Wheel Specs

As an ASE-certified master technician, I regularly service full-size commercial vans like the 2018 Ford Transit. Whether you're driving a T-150 passenger wagon, a T-250 cargo hauler, or a T-350 heavy-duty workhorse, knowing the exact tire specifications is critical for safety, load capacity, and tire longevity. Below is your comprehensive tire size, pressure, and wheel spec guide for the 2018 Ford Transit.

Quick Answer

If you're looking for the essential tire and wheel specs for your 2018 Transit, here is what you need to know:

• OEM Tire Size: 235/65R16C (Single Rear Wheel) / 195/75R16C (Dual Rear Wheel)
• Recommended Cold Tire Pressure: Front: 49–52 psi / Rear: 71–75 psi (Always verify with your specific door placard, as it varies heavily by payload package and wheelbase)
• Bolt Pattern: 5x160 mm
• Wheel Size & Offset: 16x6.5J (SRW) / 16x5.5J (DRW) with a 60mm offset (SRW)
• Load Index / Speed Rating: 121/119R (SRW) / 107/105R (DRW) — The "C" denotes commercial-grade tires.
• Spare Tire Size: Full-size matching spare
• TPMS Frequency: 315 MHz

Tire Sizes by Trim

The 2018 Ford Transit utilizes commercial-grade "C-Type" tires designed specifically for heavy loads. Here is how they break down by chassis configuration.

Note: SRW = Single Rear Wheel; DRW = Dual Rear Wheel.

Recommended Replacement Tires

When outfitting a commercial van, you need tires that can handle high heat, heavy payloads, and constant stop-and-go driving. Here are my top recommendations for the 2018 Ford Transit:

1. Michelin Agilis CrossClimate (Premium) – Excellent all-weather traction, incredible durability, and reinforced sidewalls to prevent curb damage.
2. Continental VancoFourSeason (Mid-Range) – The OEM factory tire for many Transits. Offers a great balance of load capacity, quiet ride, and predictable handling.
3. Falken Wildpeak A/T3W (Mid-Range/All-Terrain) – If your Transit visits dirt job sites or you have a camper conversion, this tire offers the necessary E-load/commercial ratings with aggressive off-road grip.
4. Nexen Roadian CT8 HL (Budget) – A cost-effective commercial tire that holds up well to heavy loads without breaking the bank. Great for fleet vehicles.

When to Inflate to Max Load PSI

Because the Ford Transit is a heavy-duty cargo and passenger vehicle, tire pressure management is crucial. The rear tires on the Transit often call for a massive 71 to 75 PSI on the door placard.

You should inflate to this maximum placard pressure whenever you are loading the van near its Gross Vehicle Weight Rating (GVWR) or towing. If you are driving a completely empty cargo van, you can technically drop the rear pressure slightly (e.g., to 60 PSI) to prevent rapid center-tread wear and harsh ride quality, but you must remember to air them back up before taking on a heavy load. As a general rule for commercial vans, keeping them at the placard pressure is the safest bet to prevent sidewall blowouts.

Lug Nut Torque & Pattern

Proper wheel installation is a major safety factor on heavy vans.

• Bolt Pattern: 5x160 mm
• Lug Nut Torque: 148 lb-ft (200 Nm)

Mechanic's Tip: Never just "impact" these lug nuts on. Always use a calibrated torque wrench. 148 lb-ft is significantly higher than a standard passenger car, and failing to torque them properly can result in sheared studs or loose wheels under heavy payload stress.

Common Tire Issues for this Vehicle

1. Rapid Outer Edge Wear: The Transit has a high center of gravity and heavily loaded front suspension. Hard cornering (especially in delivery routes) will scrub the outer edges off the front tires very quickly. Regular rotation is mandatory.
2. Using Non-Commercial Tires: Many owners see the "235/65R16" size and accidentally buy standard passenger (P-metric) or standard Light Truck (LT) tires. The Transit requires a Euro-metric Commercial ("C") tire to safely handle the GVWR. Look for the "C" at the end of the size (e.g., 235/65R16C).
3. TPMS Sensor Corrosion: Fleet vans exposed to road salt often experience valve stem corrosion on the TPMS sensors. If you have a slow leak, check the sensor base.

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