Ford F-550 Tire Guide
Tire Sizes, Types & Replacement Guide for the F-550

Ford F-550 Tire Sizes by Trim
The Ford F-550 is built for chassis cab applications, heavy commercial upfits, rollback flatbeds, and service bodies, with towing capacity of up to 40,000 lbs and payload capacity of up to 18,000+ lbs (chassis cab). The F-550 is a Class 5 commercial truck designed primarily for chassis cab upfits — flatbeds, service bodies, dump beds, and specialized commercial applications. Tires are the foundation of that capability — every F-550 tire must be LT-rated with heavy-duty construction designed for high payloads and trailer loads.
| Trim / Wheel Size | Tire Size | Tire Type |
|---|---|---|
| XL Chassis Cab (19.5-inch) | LT225/70R19.5 | Heavy-Duty Commercial |
| XLT Chassis Cab (19.5-inch) | LT225/70R19.5 | Heavy-Duty Commercial |
| Lariat Chassis Cab (19.5-inch) | LT225/70R19.5 | Heavy-Duty Commercial |
Trim-Specific Tire Details
XL Chassis Cab (19.5-inch)
Tire Size: LT225/70R19.5
Tire Type: Heavy-Duty Commercial
Standard 19.5-inch commercial tire. Six tires total on the DRW chassis. Must be rated for Class 5 truck GVWR of up to 19,500 lbs.
XLT Chassis Cab (19.5-inch)
Tire Size: LT225/70R19.5
Tire Type: Heavy-Duty Commercial
Same commercial tire as XL. Mid-trim chassis cab with additional comfort features but identical tire requirements.
Lariat Chassis Cab (19.5-inch)
Tire Size: LT225/70R19.5
Tire Type: Heavy-Duty Commercial
Premium chassis cab trim. Same tire size and load requirements as lower trims. Polished aluminum wheels available.


Tire Tips for Your F-550
- Every F-550 tire must be LT-rated with adequate load rating for the vehicle's GVWR — passenger-rated (P-metric) tires cannot safely handle F-550 weights
- The F-550 uses six tires total (2 front, 4 rear) with the 19.5-inch commercial size — budget accordingly
- The 19.5-inch commercial tire size has fewer brand options than standard truck sizes — plan ahead for availability
- When replacing tires, always match all positions — mixing worn and new tires on a F-550 under load is a safety risk
- Tire pressure is critical — check and adjust based on load (door jamb sticker shows loaded vs. unloaded pressures)
- Budget $250-400+ per tire for quality commercial LT-rated tires — six tires at a time adds up
Tire Service at Mahon Ford
Mahon Ford's service department handles tire sales, mounting, balancing, rotation, and alignment for all Ford models. Our Ford-trained technicians ensure your tires are installed to factory specifications with proper torque values and TPMS sensor calibration. We carry a selection of OEM-recommended tire brands and can special order any size or brand you prefer.
Created June 14, 2026 by MM Dealer Advocates