1950 Plymouth P19 Tires

The 1950 Plymouth P19 uses a 640-15 tire size. This is a numeric bias-ply size used on a 15-inch rim, and the covered 6 Cyl. sub-model uses that same primary size. For most owners, the fitment question is simple because there is only one primary size to start from.

Once 640-15 is confirmed, the next step is choosing the right version of that size for the car. Available options vary by brand, sidewall treatment, and rim-width specification, so it is worth checking the actual wheels on the car, especially if it has been restored, modified, or fitted with replacement rims at some point in its life.

The 1950 Plymouth P19 uses a 15-inch rim diameter with its primary 640-15 tire fitment. That rim diameter is central to both traditional bias-ply replacement and any radial-equivalent comparison, because the tire size and wheel diameter need to stay aligned before any other fitment questions are addressed.

Rim diameter is only part of the picture on a collector car. Actual wheel width should also be checked, since available 640-15 products and radial-equivalent options can have different rim-width requirements. A P19 with original wheels, replacement steel wheels, or later aftermarket wheels may need that measurement confirmed before selecting a tire.

Yes. The covered 1950 Plymouth P19 6 Cyl. application uses the same 640-15 bias-ply tire size as the core fitment for this model. That makes tire selection more straightforward because there is no sub-model size split to sort through before comparing tires.

Even with shared fitment, the final choice still depends on how the car is set up and how it will be used. Owners can focus on blackwall versus whitewall appearance, brand and tire-series preferences, and whether to stay with traditional bias-ply construction or evaluate one of the radial-equivalent sizes with wheel compatibility in mind.

For the 1950 Plymouth P19, 640-15 is the primary bias-ply tire size. The available products in this fitment are bias-ply tires, including traditional blackwall and whitewall choices. That makes 640-15 the period-style starting point for owners who want to keep the car in its original tire-sizing convention.

Staying with bias-ply construction helps preserve the car’s traditional look and road feel, but some owners compare radial equivalents for different road-use priorities. The key is not to treat construction change as automatic. Wheel width, overall dimensions, and clearance around the fenders and suspension should all be checked before moving away from the primary bias-ply setup.

Radial equivalents for 640-15 include 175R15, P175/75R15, and P185/70R15. In that group, 175R15 is the 80-series metric radial equivalent, P175/75R15 is the P-metric 75-series radial equivalent, and P185/70R15 is the P-metric 70-series radial equivalent. No bias-look radial equivalent is paired with this size here.

Those alternatives keep the 15-inch rim diameter but use different radial sizing conventions and profile families. A recommended rim-width range of 5 to 6 inches applies to the equivalents, so the actual wheel width on the car should be confirmed before making a change. Clearance, suspension condition, and the car’s intended road use also deserve a careful look.

Start by confirming the actual wheel diameter and width on the car, then compare that to the radial-equivalent options for the 640-15 fitment. The available radial equivalents are 175R15, P175/75R15, and P185/70R15, with a recommended rim-width range of 5 to 6 inches for those alternatives.

A conversion should also account for steering and fender clearance, suspension condition, and whether the Plymouth still has its original wheel and ride-height setup. Many collector cars have had wheel replacements or chassis changes over the years. Checking the full setup before installation helps avoid choosing a radial size that conflicts with the car’s actual dimensions or intended use.

The first priority is staying with the correct 640-15 size on a 15-inch rim, then narrowing the choice by construction, appearance, and wheel compatibility. For the 1950 Plymouth P19, the available products are bias-ply tires, so the main variables are brand, sidewall treatment, tire series, load specification, and the rim-width range that suits each product.

A restoration-oriented Plymouth may call for a different visual presentation than a driver-focused car. Blackwall, narrow whitewall, and wide whitewall options create very different looks, and wheel width should be verified before final selection. It also helps to think about how often the car is driven, how original its wheels remain, and whether traditional appearance matters more than trying an equivalent radial size.

The 1950 Plymouth P19 has several sidewall styles available in 640-15, including blackwall, narrow whitewall, and wide whitewall. That gives owners a useful range of appearance choices while staying within the primary tire size. The sidewall treatment can change the look of the car almost as much as the wheel finish or hubcap style.

A blackwall tire gives the car a more restrained, utilitarian presentation, while whitewall options create a more dressed, period-style look. Since whitewall width varies across available products, it is worth comparing the visual effect rather than choosing by size code alone. The best match depends on whether the Plymouth is being preserved as a driver, restored for show, or styled to a specific era taste.

Available 640-15 tires for the 1950 Plymouth P19 come from BFGoodrich, Firestone, Avon, and Excelsior. Those brands cover several distinct series, including Silvertown Classic Bias Ply, Firestone Classic Bias Ply, Super Safety Crossply, and Excelsior Bias Ply. That gives the buyer more than one path within the same primary fitment.

Brand choice should be treated as one part of the selection process, not the whole decision. It makes sense to compare sidewall style, rim-width specification, load information where stated, and the visual character of each series. On a collector Plymouth, the right tire is usually the one that matches the car’s wheels, suits its intended use, and presents the appearance the owner wants to maintain.

A period-style 1950 Plymouth P19 starts with the primary 640-15 bias-ply size. From there, the choice depends on the visual character you want, since available options include blackwall, narrow whitewall, and wide whitewall versions from several brands and tire series. Keeping the original sizing convention helps preserve the car’s traditional stance and overall presentation.

The most suitable look depends on how the car is being restored or presented, because mid-century Plymouths can wear different sidewall treatments convincingly. When exact originality matters, it is smart to verify the intended appearance through marque literature, period photography, or model-specific restoration references. That extra step helps separate a general period-style choice from a truly vehicle-specific restoration decision.

Tire construction shapes both the stance and the visual character of a restored 1950 Plymouth P19. In this application, 640-15 is a bias-ply fitment, and that construction carries the traditional sizing style associated with the car’s era. A bias-ply tire usually supports the kind of period presentation many restoration-minded owners want to maintain.

A radial-equivalent option can still be considered, but it changes the conversation from restoration-style appearance to alternative road-use goals. Because no bias-look radial equivalent is paired with this size here, owners who want to preserve a distinctly traditional visual impression often stay focused on the bias-ply choices. Sidewall style then becomes the next major appearance decision within that construction.

Yes. Even though the 1950 Plymouth P19 uses a straightforward 640-15 fitment, modifications can still affect whether a chosen tire works properly on the car. Replacement wheels, altered ride height, suspension changes, brake conversions, or bodywork differences can all influence rim compatibility and tire clearance, especially on a vehicle that has been rebuilt over many decades.

A Plymouth with non-original wheels should have both wheel diameter and wheel width checked before tire selection. Clearance at the front suspension, steering stops, and rear fender openings also deserves attention. Those checks matter whether the car stays on 640-15 bias-ply tires or moves to a radial equivalent, because collector vehicles often differ from their original factory setup in subtle but important ways.

Before driving a 1950 Plymouth P19 on new tires, inspect the wheels, valve stems, lug hardware, and overall wheel condition, then confirm that the tires are seated correctly and inflated appropriately for the chosen setup. On the car itself, look closely at steering components, suspension wear points, and brake condition so the new tires are not masking other issues.

A short test drive should also include listening for rubbing, checking steering response, and rechecking air pressure afterward. On a collector-era car, it is wise to inspect for sidewall contact near fenders and suspension through the full steering range. That extra attention helps catch fitment or mechanical issues early, before the Plymouth is asked to handle regular road miles or a longer trip.

640-15 tires on a collector 1950 Plymouth P19 should be inspected regularly for cracking, cuts, bulges, uneven wear, and signs of air loss, even if the car is driven only occasionally. Collector vehicles often age their tires through time and storage as much as through mileage, so visual condition matters just as much as remaining tread depth.

Good maintenance also means keeping the tires properly inflated, storing the car away from prolonged sunlight and ozone sources, and checking the tires again before each longer outing. If the Plymouth sits for extended periods, wheel position changes and occasional movement can help avoid long-term stress in one spot. Any doubt about tire age or condition deserves a professional inspection before road use.