The 1990 Mitsubishi Trucks Montero sits in an era when imported SUVs were earning a reputation for real utility, manageable size, and everyday drivability. Buyers and enthusiasts often appreciate these trucks for their honest 4x4 character and the mix of practical road use with period sport-utility style. Tire fitment for the 1990 Mitsubishi Trucks Montero centers on two radial sizes, 225/75R15 and 235/75R15, both on 15-inch rims, with the exact choice depending on sub-model. That leaves room to choose between traditional whitewall treatments, raised white letter all-terrain styling, and several tire series. The right selection comes down to matching the correct trim-level fitment with the look and road use that suit the truck.
Which Tire Size Is Right for The 1990 Mitsubishi Trucks Montero
The 1990 Mitsubishi Trucks Montero uses two primary tire sizes, and the right one depends on the exact sub-model. Both are radial tires for 15-inch wheels, so the first step is confirming whether your truck is a Base model or one of the LS, RS, SP, Sport, or 3.0L configurations. Once the correct size is confirmed, the decision shifts to appearance, tire series, and how traditional or utility-oriented you want the finished look to be.
225/75R15 is a metric radial size in which 225 identifies the nominal section width in millimeters, 75 is the aspect ratio, R indicates radial construction, and 15 is the wheel diameter in inches. On the 1990 Mitsubishi Trucks Montero, this size is used on the Base model and keeps the fitment in a modern radial format. Available choices include BFGoodrich, Coker Classic, American Classic, Maxxis, and Travelstar, with both narrow and wide whitewall styles. This size is the right place to focus if your Montero is a Base truck and you want to balance correct fitment with a particular visual style.
235/75R15 follows the same metric radial format, with a 235-millimeter nominal section width, a 75-series profile, radial construction, and a 15-inch rim diameter. This size applies to several 1990 Mitsubishi Trucks Montero sub-models, including LS, RS, SP, Sport, and versions with the 3.0L engine, so it covers much of the model range. Product choices span BFGoodrich, American Classic, Coker Classic, Maxxis, Tornel, and Travelstar, with options ranging from wide and narrow whitewalls to raised white letters. It is the size to evaluate when your Montero is one of the upper or engine-specific trims and you want either a more classic presentation or a more truck-oriented look.
Sub-model fitment matters on the 1990 Mitsubishi Trucks Montero because the Base model uses a different tire size than the rest of the covered lineup. Confirming the exact trim is the key first step before comparing brands, sidewall styles, or tire series.
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1990 Mitsubishi Trucks Montero Base
The 1990 Mitsubishi Trucks Montero Base uses the smaller of the two primary radial fitments offered for this model range. That makes size confirmation especially important before comparing whitewall treatments or choosing among the available touring-style radial options.
The 1990 Mitsubishi Trucks Montero LS uses the larger primary radial size shared by most covered sub-models. Once that fitment is confirmed, the main choice becomes whether to emphasize a classic whitewall look or a more utility-focused tire presentation.
The 1990 Mitsubishi Trucks Montero RS uses the same primary radial size as most non-Base Monteros in this year range. Tire selection then comes down to comparing available sidewall styles, tire series, and wheel compatibility within that size.
The 1990 Mitsubishi Trucks Montero SP shares the larger radial fitment used across several other sub-models. That gives you room to choose between traditional whitewall radials and more truck-styled options without changing the primary size.
The 1990 Mitsubishi Trucks Montero Sport uses the same larger 15-inch radial fitment found on most of the lineup. With size settled, attention can move to the tire’s appearance, series, and how closely the finished look matches your truck’s intended use.
The 1990 Mitsubishi Trucks Montero w/3.0L Eng. uses the larger radial size rather than the Base-model fitment. That makes it important to confirm the actual wheel setup on the truck, then compare the available whitewall, raised white letter, and series choices in that size.
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.
Best 1990 Mitsubishi Trucks Montero Tires for Sale
Available 15-inch radial choices for the 1990 Mitsubishi Trucks Montero include BFGoodrich, Coker Classic, American Classic, Maxxis, Tornel, and Travelstar. Across 225/75R15 and 235/75R15, the main differences are sidewall style, tire series, rim-width specification, load rating, and whether you want a classic whitewall or raised white letter look.
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Radial Tires
BFGoodrich Silvertown Radial | 2.75 Inch Whitewall | 225/75R15
These FAQs focus on the exact tire sizes used on the 1990 Mitsubishi Trucks Montero, how fitment changes by sub-model, and what to compare when choosing between available radial, whitewall, and truck-style tire options.
Tire Size & Fitment
What tire size fits a 1990 Mitsubishi Trucks Montero?
The 1990 Mitsubishi Trucks Montero uses two primary tire sizes: 225/75R15 and 235/75R15. The Base model uses 225/75R15, while LS, RS, SP, Sport, and Montero models with the 3.0L engine use 235/75R15. Both are radial tires designed for 15-inch wheels.
The practical step is to identify the exact sub-model before choosing a tire. Since both sizes share the same rim diameter, the potential mistake is not wheel diameter but selecting the wrong section width and profile for the truck’s trim. If the Montero has replacement wheels or previous tire changes, confirm the actual wheel width and clearance before settling on a size.
What size rim does a 1990 Mitsubishi Trucks Montero use?
Both primary tire sizes used on the 1990 Mitsubishi Trucks Montero mount on 15-inch rims. That applies to the 225/75R15 fitment used on the Base model and the 235/75R15 fitment used on the LS, RS, SP, Sport, and 3.0L versions.
Rim diameter is only part of the fitment picture, so it is still worth checking actual wheel width before ordering tires. The available products in these sizes show different recommended rim-width ranges, and that matters when a truck has aftermarket wheels or a prior owner has changed the setup. Matching both tire size and wheel dimensions helps avoid clearance and appearance issues.
Why does the 1990 Mitsubishi Trucks Montero have more than one tire size?
The 1990 Mitsubishi Trucks Montero has more than one tire size because fitment changes by sub-model. The Base uses 225/75R15, while the other covered versions use 235/75R15. Both are radial 15-inch fitments, but they are not the same width or overall dimensions.
That means the first decision is not brand or sidewall style but trim identification. Once the sub-model is confirmed, tire selection becomes much more straightforward because you can compare products within the correct size. If the truck has been modified, it is smart to verify what is actually on the vehicle now rather than assuming it still carries its original wheel and tire combination.
Choosing the Right Tire
What should I consider when choosing a 235/75R15 tire for a 1990 Mitsubishi Trucks Montero?
Start with the basics: 235/75R15 is the correct primary size for the LS, RS, SP, Sport, and 3.0L versions of the 1990 Mitsubishi Trucks Montero. From there, compare tire series, sidewall style, load capacity, and rim-width compatibility. In this size, choices include classic whitewall radials as well as a BFGoodrich All-Terrain T/A KO2 with raised white letters.
The best choice depends on how the truck is used and how you want it to look. A whitewall tire gives the Montero a more traditional period presentation, while an all-terrain style leans toward utility and truck character. Wheel width should be checked carefully, especially if the truck no longer has stock wheels, because product specifications in this size do vary.
What sidewall styles are available for 1990 Mitsubishi Trucks Montero tires?
Tires for the 1990 Mitsubishi Trucks Montero are available with several sidewall treatments, including narrow whitewall, wide whitewall, and RWL raised white letter styling. The exact mix depends on whether your truck uses 225/75R15 or 235/75R15, but both sizes offer whitewall choices and the larger size also includes the more truck-oriented raised white letter option.
Sidewall style changes the visual character of the Montero more than many buyers expect. A wide or narrow whitewall pushes the look toward a more classic SUV presentation, while raised white letters feel more functional and off-road influenced. Since sidewall treatment does not override fitment, choose the correct size first and then narrow the selection by appearance.
What brands offer tires for the 1990 Mitsubishi Trucks Montero?
Brand choices for the 1990 Mitsubishi Trucks Montero include BFGoodrich, Coker Classic, American Classic, Maxxis, Travelstar, and Tornel, depending on tire size. The 225/75R15 fitment includes BFGoodrich, Coker Classic, American Classic, Maxxis, and Travelstar, while 235/75R15 adds Tornel and broader variation in tire series and sidewall style.
Brand should be compared alongside the tire’s overall character rather than treated as the only decision point. Some options focus on traditional whitewall styling, while others bring a more truck-centered appearance. It also helps to compare load figures, rim-width recommendations, and the specific series offered in your size so the tire suits both the Montero’s setup and the look you want.
Restoration & Appearance
Which tire should I choose for a period-style 1990 Mitsubishi Trucks Montero?
A period-style 1990 Mitsubishi Trucks Montero usually starts with the correct primary size for the specific sub-model, then narrows the choice by sidewall presentation. Whitewall radials in both 225/75R15 and 235/75R15 can give the truck a more traditional late-1980s to early-1990s appearance, while the larger size also offers a raised white letter option for a sport-utility look.
Appearance goals should be balanced against how the truck is actually used. A Montero kept close to stock often benefits visually from a classic radial with a restrained whitewall, but a more rugged driver may look more natural on an all-terrain style tire. If exact historical authenticity matters, compare the finished choice against period photos, brochures, or marque-specific references.
How does tire construction affect the appearance of a restored 1990 Mitsubishi Trucks Montero?
On the 1990 Mitsubishi Trucks Montero, the primary fitments are radial tires, so construction choice is less about switching between eras and more about selecting the right radial style. What changes the appearance most is the sidewall treatment and tire series, since whitewall and raised white letter designs give the truck very different visual character.
That makes size and styling the real restoration decisions for this vehicle. A properly chosen radial in the correct 15-inch fitment can preserve the Montero’s period flavor without forcing a vintage bias-ply look that does not belong to this application. Buyers focused on presentation should examine wheel finish, stance, and sidewall proportion together rather than evaluating the tire in isolation.
Fitment, Maintenance & Road Use
Can modifications affect tire fitment on a 1990 Mitsubishi Trucks Montero?
Yes. Modifications can change how a tire fits on a 1990 Mitsubishi Trucks Montero even when the nominal size matches one of the primary fitments. Aftermarket wheels, different wheel widths, suspension lifts, lowering, and body or fender changes can all alter clearance and the way a 225/75R15 or 235/75R15 tire sits on the vehicle.
That is why the actual truck should be checked before choosing tires, especially on an older SUV that may have changed hands several times. Wheel diameter, wheel width, and available steering clearance matter just as much as the size printed on the sidewall. A quick inspection of lock-to-lock clearance and fender space can prevent expensive fitment surprises.
What should I inspect before driving a 1990 Mitsubishi Trucks Montero on new tires?
Before driving a 1990 Mitsubishi Trucks Montero on new tires, inspect the wheels for damage, confirm the wheel size and width, and check that the tires are inflated properly for the application. It is also smart to look over suspension and steering components, since loose or worn parts can affect how a new set of tires behaves on the road.
A road-use check should also include basic clearance inspection at full steering lock and a quick look for rubbing around the inner fenders. After the first miles, recheck inflation and look for any uneven wear pattern developing. On an older utility vehicle, fresh tires perform best when the rest of the wheel-end hardware is in equally sound condition.
How should 225/75R15 or 235/75R15 tires on a collector 1990 Mitsubishi Trucks Montero be maintained?
Collector-use tires on a 1990 Mitsubishi Trucks Montero should be maintained with regular pressure checks, visual inspections, and attention to age as well as tread. Even if the truck is driven only occasionally, 225/75R15 and 235/75R15 tires should be examined for cracking, bulges, cuts, irregular wear, and signs of air loss before road use.
Storage habits matter on a low-use SUV. Keeping the Montero away from prolonged sunlight, excessive heat, moisture, and ozone sources helps preserve the tires between drives. It also pays to move the vehicle occasionally or adjust storage practice to reduce long stationary periods. A collector truck can have good-looking tires that still deserve close inspection before highway use.
