1958 Plymouth Tire Fitment Guide

1958 Plymouth vehicles use two tire sizes: 750-14 and 800-14. The 750-14 size applies to selected Belvedere and Plaza & Savoy models, while 800-14 is used on Belvedere, Fury, Plaza & Savoy, and Suburban applications. Both sizes mount on 14-inch rims. Where rim-width guidance is available, 750-14 products call for 5.00- to 5.50-inch rims, and 800-14 products call for 5.00- to 6.00-inch rims on the products that publish that range.

That means the biggest fitment question is not wheel diameter, but which model and application you actually have. A Fury owner can focus on 800-14 immediately, while Belvedere and Plaza & Savoy owners should confirm which of the two sizes belongs on their particular car before choosing a sidewall treatment. Once the size is settled, the remaining choice is usually visual: blackwall, whitewall, or redline, depending on the look you want.

On a 1958 Plymouth tire, 750-14 is a numeric bias-ply size. The 7.50 identifies the tire’s nominal section width in inches, and the 14 identifies the wheel diameter in inches. Unlike a modern metric radial code, it does not include a separate aspect-ratio figure or an R for radial construction. For 1958 Plymouth, this size belongs to selected Belvedere and Plaza & Savoy applications.

A buyer looking at 750-14 should think of it as a traditional late-1950s American passenger-car size, not a modern equivalent code. It is especially relevant when you are trying to preserve the correct visual scale of a period Plymouth and want access to era-style sidewall treatments such as narrow whitewall, wide whitewall, or redline. The important step is matching the size to the car first, then selecting the sidewall presentation that suits your restoration goals.

No. 1958 Plymouth models do not all use the same tire size. Fury and Suburban use 800-14, while Belvedere and Plaza & Savoy can be associated with either 750-14 or 800-14 depending on the application. Every size listed for the year is a 14-inch bias-ply fitment, but the width class changes from one model group to another.

That variation matters because a buyer who knows only that the car is a 1958 Plymouth still has more than one possible answer. If you own a Belvedere, Plaza, or Savoy, it is worth checking the existing tires, wheel width, and any surviving factory literature before settling on a replacement size. The page at the model level is the best next step when the same year and make can legitimately lead to more than one size.

The right choice for a 1958 Plymouth is determined first by model application, not by personal preference alone. Both 750-14 and 800-14 are bias-ply 14-inch sizes, but 750-14 is used on selected Belvedere and Plaza & Savoy cars, while 800-14 covers Fury, Suburban, and additional Belvedere and Plaza & Savoy applications. They are not interchangeable as a year-wide rule simply because they share the same rim diameter.

Once you have confirmed which size belongs on your car, the selection becomes much easier. A 750-14 buyer is usually preserving a more specific application within the Plymouth line, while an 800-14 buyer is matching the broader full-size fitment used across the range. If your car is one of the overlapping model groups, compare your current tire size, wheel width, and restoration goals before making the final call.

1958 Plymouth tires are available with several period-appropriate sidewall looks. In 750-14, the available styles include narrow whitewall, wide whitewall, and redline. In 800-14, the available styles include blackwall, narrow whitewall, and wide whitewall. All of these are bias-ply offerings, so the visual choice is mainly about the character you want the car to present.

For many late-1950s American cars, whitewalls are closely tied to the era’s styling language, especially on upper-trim and more fashion-conscious models, while blackwalls can suit a plainer, more utilitarian presentation. Redlines are a more specialized visual statement and should be chosen with an eye toward the exact look you are building. If authenticity matters for a judged car, compare the sidewall treatment against period photos and marque-club guidance before deciding.

1958 Plymouth vehicles have tire options from BFGoodrich, US Royal, Coker Classic, and Universal Vintage Tire, depending on size. The 750-14 category includes BFGoodrich, US Royal, and Coker Classic, while 800-14 includes BFGoodrich and Universal Vintage Tire. All of the listed offerings are bias-ply tires built around the period-correct fitment style for late-1950s Plymouth applications.

Brand choice on a collector car often comes down to the combination of sidewall appearance, heritage appeal, and the exact product details available in the size you need. Some buyers are looking for a familiar American name on the sidewall, while others are simply trying to achieve the right whitewall width or overall presentation. It helps to narrow your search by size first, since the brand mix changes between 750-14 and 800-14.

1958 Plymouth tire rim-width guidance depends on the size. For 750-14, the available products specify a 5.00- to 5.50-inch rim-width range. For 800-14, the published range on the products that include it is 5.00 to 6.00 inches. Both sizes fit 14-inch rims, but the acceptable wheel width changes with the tire size.

That matters because wheel diameter alone does not guarantee a proper match. A tire mounted on a rim that is too narrow or too wide can affect section shape, sidewall behavior, and overall appearance. Before ordering, measure the actual wheel or verify the original wheel specification for your Plymouth so the tire size and wheel width are working together rather than simply sharing the same 14-inch diameter.

Original 1958 Plymouth wheels can potentially accept both listed tire sizes only in the sense that both 750-14 and 800-14 are 14-inch fitments. That confirms rim diameter compatibility, but it does not automatically confirm that every original wheel width is suitable for both sizes. The published rim-width ranges differ, with 750-14 centered on 5.00 to 5.50 inches and 800-14 extending to 5.00 to 6.00 inches where specified.

A buyer should treat shared wheel diameter as a useful starting point, not a complete fitment answer. If your car is a Belvedere or Plaza & Savoy with either size possibility, verify the wheel width before assuming one set of original wheels can serve both sizes equally well. That simple check helps preserve the correct tire profile and avoids choosing a size that technically mounts but is not ideal for the rim you have.

A 1958 Plymouth should be stored in a cool, dry, dark space away from direct sunlight, electric motors, furnaces, welders, and other ozone-producing equipment that accelerates rubber aging. Keep the tires properly inflated, and if the car will sit for long stretches, roll it periodically or support it in a way that reduces long-term static loading. Bias-ply tires are especially prone to taking temporary flat spots when parked for extended periods.

Good storage habits preserve both appearance and drivability on a collector Plymouth. Whitewalls also benefit from a clean environment, since dirt and moisture staining are harder to reverse once they set in. If you bring the car out only a few times each season, a little preventive care in storage is often more valuable than anything you do once the driving year begins.

Tires on a 1958 Plymouth are best judged by age and condition rather than mileage alone, since collector cars often see low annual use. A sensible practice is to begin evaluating them closely once they reach the five- to seven-year range and to treat around ten years as a point where replacement deserves serious consideration regardless of remaining tread. The DOT date code on the tire is the quickest way to establish age.

A Plymouth that spends much of its life indoors can still age its tires out before it wears them out. Sidewall cracking, hardening, repeated air loss, or vibration that does not improve after normal use are all signs that age is becoming the real issue. Owners who drive only to local events sometimes overlook this, so date-checking the tires should be part of routine stewardship.

Tires on a 1958 Plymouth should be inspected before every drive and given a more deliberate check before any extended outing. Look for sidewall cracking, tread separation, embedded objects, irregular wear, and any bulge or distortion in the casing. Pressure should be confirmed regularly, especially on a collector car that may sit between uses and gradually lose air without obvious warning.

Frequent inspection matters more on an older car because you are often relying on a tire that spends more time aging than wearing. A short walkaround before leaving the garage can catch the kind of issue that ruins a tour day or strands the car far from home. If the car carries a spare, inspect that tire as well so it is more than just decoration in the trunk.

A 1958 Plymouth Belvedere would have been fitted with bias-ply tires when new, which matches the construction type used across the available 1958 Plymouth fitments here. Belvedere applications can be associated with either 750-14 or 800-14, both on 14-inch rims. That means original-correct fitment begins with confirming which Belvedere application you have, rather than assuming every Belvedere used the same width tire.

For an accurate restoration, the best path is to verify the car against surviving factory literature, original sales material, or a Plymouth marque specialist. Once the size is confirmed, you can refine the look further with the sidewall treatment that suits the car’s intended presentation. Bias-ply construction is the key authenticity point; the finer distinction is whether your specific Belvedere belongs in the 750-14 or 800-14 camp.

Correct tire fitment matters on a 1958 Plymouth because judges and informed enthusiasts notice whether the size, construction type, and sidewall treatment suit the car’s era and model. For a late-1950s Plymouth, a bias-ply tire with an era-appropriate blackwall or whitewall presentation is generally much more in character than a visibly modern alternative. Even within period-looking tires, the wrong width class can affect stance and overall authenticity.

A show-minded owner should think beyond simple fit and consider how the tire finishes the car visually. Whitewall width, sidewall color, and the overall tire profile can change the impression of a Fury versus a Plaza or Savoy. Event standards vary, so if the car is being prepared for judged competition, compare your planned setup with period references and the rules used by the specific club or venue.

In 750-14 for a 1958 Plymouth, BFGoodrich and US Royal both offer bias-ply choices on 14-inch rims with the same published 5.00- to 5.50-inch rim-width range. BFGoodrich appears in a narrow whitewall version rated at 1580 pounds at 32 psi and weighing 23 pounds, while US Royal appears as a narrow whitewall and a redline, each rated at 1500 pounds at 32 psi and weighing 22 pounds.

The practical difference is less about fitment and more about appearance and the exact product character you want. A buyer comparing those two brands in this size is usually deciding between subtle whitewall presentation and a more specialized redline look, while also noting the small differences in published load rating and weight. Either way, the correct starting point remains making sure 750-14 is the right size for your Plymouth application.

1958 Plymouth tires can be suitable for normal highway use when they are the correct size, in good condition, properly inflated, and matched to sound wheels. The available fitments here are bias-ply tires, so their road feel will reflect period construction, with more tracking sensitivity and a different response character than a modern radial. On a car of this age, the condition of the suspension, steering, brakes, and wheel bearings is often just as important to highway confidence as the tire itself.

Highway safety on a collector Plymouth is really about the whole system working together. A fresh set of correctly fitted tires cannot compensate for worn front-end components or long-neglected brakes, and a mechanically sorted car can still feel different from a modern vehicle because of its original-era design. If you plan to tour with the car, test it locally first and build speed gradually after verifying the chassis is ready.

Published load-and-pressure figures for 1958 Plymouth tire products show 750-14 examples rated at either 1500 pounds at 32 psi or 1580 pounds at 32 psi, depending on the brand, while 800-14 examples are listed at 1620 pounds at 32 psi on the products that include that information. Those figures describe the tire’s rated capacity at that pressure, not necessarily the vehicle manufacturer’s recommended running pressure for every Plymouth application.

The best practice is to use the factory owner’s manual or period service information for the car’s baseline inflation guidance, then make sure the tire you select is being used within its own published limits. Do not transfer a pressure number casually from one size to another or from one product line to another just because both are bias-ply 14-inch tires. Matching the pressure plan to the exact size and vehicle application is the safer approach.

Before taking a 1958 Plymouth on a longer drive, inspect each tire for cracking, cuts, bulges, exposed cords, irregular wear, and low pressure. Make sure the valve stems are sound, the spare is usable, and the wheel attachment hardware is in proper condition. Because these are bias-ply fitments, it is also worth paying attention to any vibration or pull that suggests a tire or chassis issue needs attention before the trip grows longer.

A longer drive is where small collector-car issues stop being small. Tires are only one part of the pre-trip routine, but they are the part that keeps every other system connected to the road. Once the tires check out, give the rest of the car the same respect: brakes, cooling, charging, fluid levels, steering play, and lights all deserve a look before you point a 1958 Plymouth toward sustained road miles.