The 2002 Mercedes-Benz Trucks ML320 sits in the early luxury SUV era, when midsize sport-utility models were expected to balance daily comfort, highway stability, and a more substantial road presence than a passenger car. That balance matters when choosing tires for this exact model, because the ML320 uses one of two 17-inch radial sizes depending on sub-model: 255/60R17 or 275/55R17. The key distinction is not old-style bias-ply versus radial construction, but confirming whether the vehicle is a Base or Sport and matching the tire size to the wheel setup already on the truck. A careful selection keeps the stance, clearance, and driving character aligned with the intended configuration.
Which Tire Size Is Right for The 2002 Mercedes-Benz Trucks ML320
The 2002 Mercedes-Benz Trucks ML320 uses two primary tire sizes, and the difference comes down to sub-model rather than a change in basic construction. Both are metric radial sizes for 17-inch rims, so the first step is confirming whether the vehicle is a Base or Sport model and checking the wheel setup currently on the truck before choosing a replacement.
255/60R17 is a metric radial size in which 255 refers to the section width in millimeters, 60 is the aspect ratio, R identifies radial construction, and 17 is the wheel diameter in inches. On the 2002 Mercedes-Benz Trucks ML320, this size is used on the Base sub-model and reflects a modern SUV tire format rather than a vintage sizing system. Its dimensions make it useful for owners who want to stay with the original fitment type for that specific configuration. The important step is matching it to the correct sub-model and confirming the existing 17-inch wheel before replacement.
275/55R17 is also a metric radial size, with a 275-millimeter nominal section width, a 55-series profile, radial construction, and a 17-inch rim diameter. This size applies to the 2002 Mercedes-Benz Trucks ML320 Sport, giving that sub-model a different primary fitment from the Base version. Compared with the narrower ML320 size, it represents a distinct factory-type sizing choice tied to the specific trim. Selecting this size starts with verifying that the truck is a Sport model and that it still carries the proper 17-inch wheel package for that fitment.
Tire fitment on the 2002 Mercedes-Benz Trucks ML320 varies by sub-model, so identifying the exact version matters before choosing a size. Both use 17-inch radial tires, but the Base and Sport do not share the same primary fitment.
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2002 Mercedes-Benz Trucks ML320 Base
The 2002 Mercedes-Benz Trucks ML320 Base uses a 255/60R17 radial tire on a 17-inch rim. For tire selection, that means staying focused on the Base fitment rather than assuming the wider Sport size belongs on every ML320.
The 2002 Mercedes-Benz Trucks ML320 Sport uses a 275/55R17 radial tire on a 17-inch rim. That makes wheel and trim confirmation especially important, since the Sport fitment differs from the Base model even though both use the same rim diameter.
The tire sizes listed on this page assume factory-standard vehicle configuration. The following modifications may affect tire fitment and are not reflected in this guide:
Suspension changes (lowering, lift kits, spring replacements)
Body alterations (fender modifications, custom bodywork)
If your vehicle has been modified from factory specifications, verify tire clearance before purchase.
Frequently Asked Questions
These FAQs focus on the exact tire sizes used on the 2002 Mercedes-Benz Trucks ML320, how Base and Sport fitments differ, and what to check for wheel compatibility, replacement selection, and road-ready condition.
Tire Size & Fitment
What tire size fits a 2002 Mercedes-Benz Trucks ML320?
A 2002 Mercedes-Benz Trucks ML320 uses one of two tire sizes depending on sub-model. The Base model uses 255/60R17, while the Sport model uses 275/55R17. Both are radial tires designed for 17-inch rims, but they are not the same primary fitment.
The important next step is confirming which sub-model the truck is and checking the wheel setup currently on the vehicle. An ML320 that has had wheels changed over the years may not still match its original configuration, so size selection should be tied to both the trim level and the actual wheel diameter on the truck.
What size rim does a 2002 Mercedes-Benz Trucks ML320 use?
The 2002 Mercedes-Benz Trucks ML320 uses a 17-inch rim with both primary tire sizes. That applies to the 255/60R17 size used on the Base model and the 275/55R17 size used on the Sport model, so rim diameter stays consistent across the covered sub-models.
That shared diameter makes the fitment question easier, but it does not mean every tire size belongs on every ML320. Rim width, sub-model, and the current wheel package still matter, especially if the truck has aftermarket wheels or a previous owner changed tire sizing for appearance or handling reasons.
Why does the 2002 Mercedes-Benz Trucks ML320 have more than one tire size?
The 2002 Mercedes-Benz Trucks ML320 has more than one tire size because the Base and Sport sub-models use different primary fitments. The Base is fitted with 255/60R17, while the Sport uses 275/55R17. Both are radial sizes for 17-inch wheels, but they are tied to different versions of the ML320.
That means the correct replacement is determined by the exact sub-model and by the wheel setup on the vehicle today. Before ordering tires, compare the current sidewall size, verify the wheel diameter, and make sure the truck has not been changed from its original trim-specific setup over time.
Choosing the Right Tire
What should I consider when choosing a 255/60R17 tire for a 2002 Mercedes-Benz Trucks ML320?
A 255/60R17 tire is the correct primary size for the 2002 Mercedes-Benz Trucks ML320 Base. The first priority is staying with that exact size on a 17-inch wheel and confirming that the vehicle is the Base sub-model rather than the Sport, which uses a different fitment.
After size confirmation, compare the tire's intended use with how the ML320 is driven, whether that means regular road use, occasional weekend driving, or a truck that spends long periods parked. Wheel width, current clearance, and any prior modifications should also be checked so the replacement matches the vehicle's actual setup.
What should I consider when choosing a 275/55R17 tire for a 2002 Mercedes-Benz Trucks ML320?
A 275/55R17 tire is the primary fitment for the 2002 Mercedes-Benz Trucks ML320 Sport. Choosing correctly starts with confirming that the truck is the Sport sub-model and that it still uses the proper 17-inch wheel package intended for that wider metric radial size.
Once the size is confirmed, pay attention to how closely the replacement matches the existing wheel and vehicle setup. Trucks with changed wheels, suspension alterations, or mixed tire sizes from prior ownership should be inspected carefully so the chosen tire suits the ML320's present configuration and available clearance.
How do I choose between the available tires for a 2002 Mercedes-Benz Trucks ML320?
Choosing between tires for a 2002 Mercedes-Benz Trucks ML320 starts with the exact fitment, not brand preference alone. The truck uses either 255/60R17 or 275/55R17 depending on sub-model, so the correct starting point is identifying whether the vehicle is a Base or Sport and matching the tire to that setup.
From there, compare tires based on the truck's real use and condition. A regularly driven ML320 may call for a different emphasis than one kept for lighter use, and wheel condition, alignment, suspension wear, and previous modifications can all influence which replacement makes the most sense.
Restoration & Appearance
Which tire should I choose for a period-style 2002 Mercedes-Benz Trucks ML320?
For a period-style 2002 Mercedes-Benz Trucks ML320, the right starting point is the original fitment type for the specific sub-model. That means 255/60R17 for the Base model or 275/55R17 for the Sport, both in radial construction on 17-inch rims, rather than treating the two sizes as interchangeable.
Keeping the truck in its proper size family helps preserve the stance and overall presentation associated with its early-2000s luxury SUV character. Owners chasing exact originality should also compare the current wheel and tire setup against vehicle-specific references, since appearance details can change when wheels or trim-specific equipment have been altered.
Does correct tire fitment matter for a 2002 Mercedes-Benz Trucks ML320 restoration?
Correct tire fitment matters on a 2002 Mercedes-Benz Trucks ML320 restoration because the truck's overall look depends heavily on size, sidewall proportion, and proper wheel relationship. Using 255/60R17 on a Base or 275/55R17 on a Sport keeps the restoration aligned with the sub-model's intended tire presentation.
Fitment also affects more than appearance. A mismatched size can change how the truck sits in the wheel opening and may create clearance or handling concerns that distract from an otherwise careful restoration. Verifying trim level, wheel diameter, and the actual wheels on the vehicle is a smart step before final tire selection.
Fitment, Maintenance & Road Use
Can modifications affect tire fitment on a 2002 Mercedes-Benz Trucks ML320?
Modifications can absolutely affect tire fitment on a 2002 Mercedes-Benz Trucks ML320. Changes such as aftermarket wheels, altered wheel width, suspension adjustments, or body modifications can influence whether the truck still has the proper relationship to its original 255/60R17 or 275/55R17 tire size.
That is why replacement selection should start with the vehicle as it sits today, not just the badge on the tailgate. Checking the current sidewall size, measuring wheel diameter, and looking at steering and fender clearance can prevent ordering a tire that matches the trim level on paper but not the truck's actual setup.
What should I inspect before driving a 2002 Mercedes-Benz Trucks ML320 on new tires?
Before driving a 2002 Mercedes-Benz Trucks ML320 on new tires, inspect the wheels for damage, confirm the tire size matches the correct sub-model, and make sure each tire is properly mounted on the correct 17-inch rim. It is also wise to check valve stems, wheel fastener condition, and basic inflation before road use.
A quick look at alignment and suspension condition is just as important, especially on an older SUV. Uneven wear, loose steering components, or aging bushings can affect how the new tires behave. Starting with a clean, properly inspected setup helps the ML320 track more consistently and reduces the chance of premature wear.
How often should tires on a 2002 Mercedes-Benz Trucks ML320 be inspected?
Tires on a 2002 Mercedes-Benz Trucks ML320 should be inspected regularly, especially if the truck is driven infrequently or spends long periods parked. Check for air loss, irregular wear, cuts, bulges, and sidewall cracking, and confirm that the size on the vehicle still matches the correct Base or Sport fitment.
A routine inspection before longer drives is a smart habit on an older luxury SUV. Paying attention to pressure, tread condition, and visible aging can catch issues before they become roadside problems. Storage conditions also matter, since prolonged exposure to heat, sunlight, and long stationary periods can shorten tire life.
