2017 Ram ProMaster — Tire Size, Pressure, Bolt Pattern & Wheel Specs

Quick answer

• OEM tire size: 225/75R16C (commercial “C” tire) on 16-inch steel wheels across 1500/2500/3500
• Recommended cold tire pressure (door placard): typically 60–61 psi front, 70–80 psi rear (varies by GVWR/wheelbase; check your placard). Common examples: 2500/3500 cargo ~61 psi F / 70 psi R
• Bolt pattern: 5x118 mm (5-lug on 118 mm circle); hub bore ~71.5–71.6 mm
• Wheel size and offset: 16x6.0J (some 16x6.5J). High positive offset, typically +66 to +70 mm (ET+66 to +70)
• Load index/speed rating: usually 121/120R on 2500/3500; some 1500s may be 116/114R. “R” speed rating (106 mph)
• Spare tire: Full-size 225/75R16C on steel rim (underbody carrier)
• TPMS sensor frequency: 433 MHz

Tire sizes by trim

Note: Actual door-placard PSI can vary with payload rating, seating (cargo vs. window van), and upfits. Always follow your van’s placard.

Recommended replacement tires

• Premium all-weather commercial: Michelin Agilis CrossClimate (225/75R16C or LT225/75R16 E). Excellent tread life, snow-certified 3PMSF, strong casing for vans. Typical price: premium tier.
• Premium highway/all-season: Continental VanContact A/S (or VancoFourSeason successor) in 225/75R16C. Quiet and durable with reinforced sidewalls. Premium tier.
• Fleet workhorse (value-premium): Firestone Transforce HT2 (LT225/75R16 E). Proven on heavy vans and box trucks; stable under load. Mid to upper-mid tier.
• Durable commercial A/S: BFGoodrich Commercial T/A All-Season 2 (LT225/75R16 E). Rugged tread and stout sidewalls for curb/urban duty. Mid tier.
• Budget commercial: Hankook Vantra LT RA18 or Nexen Roadian CT8 HL (225/75R16C). Good value for high-mile fleets. Budget to lower mid tier.

Fitment tip: The ProMaster commonly ships with European-style 225/75R16C tires. LT225/75R16 Load Range E tires are also widely used in North America and are acceptable replacements when matched to the van’s load requirements and placard pressures.

When to inflate to max load psi (HD trucks only)

Use the max pressure printed on the tire sidewall only when you are operating near the van’s GVWR/GAWR, especially with heavy rear-biased cargo (shelving, tools, pallets). Running at sidewall max all the time can reduce ride quality and wet traction when lightly loaded. For everyday mixed use, set pressures to the door placard when cold; increase rear pressure toward the tire’s max only for sustained heavy loads or towing that puts you near axle ratings. After loading, recheck pressures cold and consider weighing axles to dial in safely.

Lug nut torque & pattern

• Lug pattern: 5 lugs; tighten in a star/alternate sequence (1–3–5–2–4)
• Torque spec: typically 130 lb-ft (176 Nm). Re-torque after 50–100 miles on newly mounted wheels.
• Wheel/hub notes: 5x118 mm bolt circle, hub-centric with a ~71.5–71.6 mm center bore. High offset wheels (about ET+66 to +70) are required for proper clearance. Always verify fitment before buying aftermarket wheels.

Common tire issues for this vehicle

• Inside shoulder wear up front: FWD and heavy payloads can add negative camber/toe under load. Get a loaded alignment and rotate tires every 6–8k miles.
• Cupping/feathering on rears: Often from under-inflation or infrequent rotations. Keep rears at the placard value (or higher when heavily loaded) and rotate on schedule.
• Sidewall scuffing/cracking: Urban curb contact and overloads stress commercial casings. Choose C or LT commercial tires with the correct load index (116/114R to 121/120R as equipped) and avoid overloading.
• TPMS faults: 2014–2018 ProMaster sensors use 433 MHz; batteries typically age out around 7–10 years. Replace sensors in sets when doing tires to avoid repeat demounts.
• Corrosion/slow leaks: Steel wheels in salted regions can rust at bead seats or valve holes. Clean bead seats, use quality valve stems/TPMS service kits, and consider periodic wheel inspection.

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