The 1985 Plymouth Conquest came from the era when turbocharged sport coupes were bringing sharper handling, modern styling, and international performance influence into American showrooms. Its distinctive mix of 1980s technology and enthusiast appeal makes tire choice more than a simple replacement decision, especially when wheel size can change the fitment. The 1985 Plymouth Conquest uses radial tires, with 195/70R14 and 215/60R15 sizes both associated with the model. That gives owners access to everything from straightforward blackwall sport radials to wide whitewall, redline, and raised white letter options in the 15-inch size. The right choice starts with confirming the actual wheel setup and deciding whether appearance, originality of presentation, or road use matters most.
Which Tire Size Is Right for The 1985 Plymouth Conquest
The 1985 Plymouth Conquest uses two primary tire sizes, and the first step is confirming which wheel diameter is on the car. Both sizes are radial, but one fits a 14-inch rim and the other fits a 15-inch rim, so the decision is not just about tread style or brand. Once the wheel size is confirmed, the focus shifts to the available tire character, sidewall treatment, and intended use.
A 195/70R14 tire uses a 195-millimeter section width, a 70-series profile, radial construction, and a 14-inch rim. On the 1985 Plymouth Conquest, this size represents a modern metric radial fitment with a more straightforward replacement path rather than a broad range of appearance-driven choices. Available options in this size center on blackwall radial construction, including the Dunlop Sport Classic. This size makes sense when the car is equipped with 14-inch wheels and the goal is to stay with the proper rim diameter while keeping the tire selection simple and appropriate to the vehicle's setup.
A 215/60R15 tire is a wider modern metric radial, with a 215-millimeter section width, 60-series profile, and 15-inch rim diameter. For the 1985 Plymouth Conquest, this size opens up the broader range of product choices, including blackwall, wide whitewall, redline, and raised white letter sidewall treatments. Brands in this size include American Classic, BFGoodrich, Dunlop, Avon, and Vredestein across series such as Asymmetrical Tread, Radial T/A, Sport Classic, CR6ZZ, and Sprint Classic. This is the size to evaluate carefully if the car runs 15-inch wheels and appearance is part of the decision.
Sub-model fitment is straightforward here, but wheel choice still matters. The covered Turbo configuration is associated with both primary tire sizes, so identifying the actual rim diameter on the car is the key step before selecting a tire.
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1985 Plymouth Conquest Turbo
The 1985 Plymouth Conquest Turbo is associated with both 195/70R14 and 215/60R15 radial tire sizes. That means tire selection starts with confirming whether the car is running 14-inch or 15-inch wheels, then choosing the sidewall style, brand, and tire series that best match the car's intended look and use.
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 1985 Plymouth Conquest Tires for Sale
Available 1985 Plymouth Conquest tires include radial choices from Dunlop, American Classic, BFGoodrich, Avon, and Vredestein. The 15-inch fitment offers the widest comparison set, with blackwall, wide whitewall, redline, and raised white letter sidewalls across several sport and restoration-oriented tire series.
Common 1985 Plymouth Conquest tire questions usually come down to identifying the correct wheel diameter, understanding the two radial sizes, and choosing among blackwall, redline, whitewall, or raised white letter options. Owners also tend to ask about maintenance, modifications, and pre-drive inspection on a collector-era turbo coupe.
Tire Size & Fitment
What tire size fits a 1985 Plymouth Conquest?
The 1985 Plymouth Conquest uses two primary radial tire sizes: 195/70R14 and 215/60R15. Both sizes are associated with this model, so the correct choice depends on which wheel diameter is actually on the car rather than assuming every Conquest uses the same rim and tire combination.
Checking the wheel before ordering matters because a 14-inch tire and a 15-inch tire are not interchangeable. Read the wheel size directly, confirm that the tire size matches the rim diameter, and then compare the available tire styles in that size. That step is especially important on cars that may have had wheels changed over time.
What size rim does a 1985 Plymouth Conquest use?
A 1985 Plymouth Conquest is associated with both 14-inch and 15-inch rims. The 195/70R14 tire belongs to a 14-inch rim, while the 215/60R15 tire belongs to a 15-inch rim, so rim diameter is the key fitment detail to confirm first.
The tire size itself tells part of the story, but the actual wheel on the car settles the question. A Conquest that still has its existing wheels should be checked directly for diameter and overall condition before replacing tires. If the car has aftermarket wheels, confirm width and clearance as well before narrowing the choices.
Why does the 1985 Plymouth Conquest have more than one tire size?
The 1985 Plymouth Conquest is tied to two radial tire sizes because the model can be encountered with two different rim diameters. One fitment uses 195/70R14, and the other uses 215/60R15, so the difference is not a duplicate listing but a real change in wheel and tire setup.
That means the first buying decision is not brand or sidewall style, but identifying the car's actual wheel diameter. Once that is confirmed, the correct size becomes clear and the comparison shifts to the tires available within that fitment. The 15-inch size, for example, brings a noticeably broader mix of appearance options.
Choosing the Right Tire
What should I consider when choosing a tire for a 1985 Plymouth Conquest?
Start with the correct size for the actual wheel on the car, since the 1985 Plymouth Conquest uses either 195/70R14 or 215/60R15 radial tires. After size, the important factors are construction consistency, sidewall appearance, brand, tire series, and whether the car is being maintained as a restoration-minded street car or driven more regularly.
The 14-inch fitment is a simpler blackwall sport-radial choice, while the 15-inch fitment opens the door to blackwall, wide whitewall, redline, and raised white letter designs. Rim-width specifications also vary among some 15-inch products, so compare those details against the wheel before making a final selection.
What sidewall styles are available for 1985 Plymouth Conquest tires?
Sidewall choices for the 1985 Plymouth Conquest include Blackwall, Wide Whitewall, Redline, and RWL, depending on the tire size. Blackwall options appear in both primary sizes, while the broader range of appearance-focused sidewall treatments shows up in the 215/60R15 fitment.
That gives the 15-inch setup more visual flexibility if the goal is to shape the car's presentation as much as its road manners. A blackwall keeps the look understated and sporty, while redline, wide whitewall, or raised white letter styles create a more distinctive period feel. Matching the sidewall style to the wheel and overall build helps the car look intentional.
What brands offer tires for the 1985 Plymouth Conquest?
Tires for the 1985 Plymouth Conquest are available from Dunlop, American Classic, BFGoodrich, Avon, and Vredestein. Dunlop appears in both primary sizes, while the 215/60R15 fitment includes the widest mix of brands and tire series for owners who want more choice.
Brand matters most after the basic fitment is settled, because each one may bring a different combination of sidewall style, series character, rim-width specification, or load figure. Rather than choosing by name alone, compare the tire's size, sidewall presentation, intended use, and wheel compatibility so the selection suits the car as equipped.
Restoration & Appearance
Which tire should I choose for a period-style 1985 Plymouth Conquest?
A period-style 1985 Plymouth Conquest tire choice starts with the wheel diameter already on the car, since the model uses either 195/70R14 or 215/60R15 radials. From there, the 15-inch fitment offers the strongest appearance range, with blackwall, redline, wide whitewall, and raised white letter options that can shape the car's overall presentation.
The right pick depends on whether the goal is a restrained sport-coupe look or a more personalized 1980s-style statement. Keeping the proper size and rim relationship should come before chasing appearance. If exact originality matters, use marque-specific historical references to compare period photos, wheel setups, and trim details before settling on a sidewall style.
How does tire construction affect the appearance of a restored 1985 Plymouth Conquest?
Tire construction is simpler on the 1985 Plymouth Conquest because the primary fitments are radial, so the visual difference comes more from size, tread character, and sidewall style than from choosing between bias-ply and radial construction. That makes the restoration decision more about presentation within the correct radial fitment.
A blackwall radial tends to preserve a clean, sporty look, while redline, wide whitewall, or raised white letter treatments create a more assertive period impression on the 15-inch setup. Construction still matters functionally, but visually this page's real distinction is the sidewall treatment. Making that choice after confirming wheel diameter keeps the restoration direction consistent.
Fitment, Maintenance & Road Use
Can modifications affect tire fitment on a 1985 Plymouth Conquest?
Yes, modifications can affect tire fitment on a 1985 Plymouth Conquest. Changes such as aftermarket wheels, altered wheel width, suspension lowering, or body modifications can change the space available for either the 195/70R14 or 215/60R15 fitment, even when the tire size itself is correct for the model.
A Conquest that has been changed from stock should be checked for wheel diameter, width, and clearance at the fender and steering components before new tires are selected. Tire choice is much easier when the actual setup is known. Even a correct nominal size can create issues if the wheel or suspension configuration has been altered.
What should I inspect before driving a 1985 Plymouth Conquest on new tires?
Before driving a 1985 Plymouth Conquest on new tires, inspect the wheels for damage, confirm the tire size matches the rim diameter, and check that the tires are properly mounted and inflated. It is also smart to look over the valve stems, lug torque, and general wheel condition before putting miles on the car.
Roadworthiness depends on more than fresh rubber. A collector-era sport coupe should also be checked for steering feel, suspension condition, brake operation, and any signs of rubbing once the new tires are installed. A short test drive followed by a second visual inspection can reveal clearance or seating issues before the car is used normally.
How should tires on a collector 1985 Plymouth Conquest be maintained?
Tires on a collector 1985 Plymouth Conquest should be maintained with regular pressure checks, visual inspections, and attention to age-related deterioration. Even if tread looks good, low-use collector cars can develop cracking, flat spotting, bulges, or slow air loss simply from time, storage conditions, and infrequent driving.
Consistent maintenance helps preserve both safety and ride quality. Keep the car stored away from prolonged sunlight, excess heat, moisture, and ozone-producing equipment when possible, and inspect the tires before longer drives. A Conquest that sits for extended periods benefits from routine movement and periodic rechecks of pressure and overall tire condition.
