1938 Plymouth Standard Tires

The 1938 Plymouth Standard uses a 550-16 tire size. This is a vintage numeric bias-ply fitment, with 5.50 representing the nominal section width in inches and 16 representing the wheel diameter in inches. The covered 6 Cyl. sub-model uses the same size, so the fitment itself is straightforward.

Once the size is confirmed, the next step is choosing the version of 550-16 that best suits the car. Available options differ by brand, tire series, and sidewall treatment, including blackwall and wide whitewall styles. It is also smart to confirm that the car still has the expected 16-inch wheels and has not been changed to another rim setup over the years.

The primary tire fitment for a 1938 Plymouth Standard uses a 16-inch rim. That rim diameter matches the 550-16 tire size, where the final number in the size code identifies the wheel diameter. For the available products in this fitment, 16-inch application remains consistent throughout the tire choices.

Rim diameter is only part of the fitment picture on a prewar car. Some 550-16 tires in this application also call for a narrow vintage rim width, such as 3.25 to 4.00 inches, so wheel width should be checked before mounting. Cars that have had replacement wheels installed should be measured rather than assumed to still match original-style dimensions.

Yes. The 1938 Plymouth Standard 6 Cyl. uses the same 550-16 bias-ply tire size as the model's core fitment. That keeps the tire decision relatively simple, because there is no alternate primary size to sort through for this covered sub-model.

Even with shared sizing, buyers still have meaningful choices within 550-16. Blackwall and wide whitewall versions are both available, and the brand and tire series can influence how the finished car looks. A restoration-focused owner may prioritize period-style appearance, while a driver-focused owner may focus first on wheel compatibility, tire condition, and intended road use.

Start with the correct size and construction: 550-16 bias-ply on a 16-inch rim. From there, the choice shifts to how the car is being used and presented. Available tires differ by brand, tire series, sidewall style, and certain product specifications such as rim-width guidance, weight, and load information where stated.

A blackwall tire gives the Plymouth a more restrained prewar appearance, while a wide whitewall creates a more formal restoration-oriented look. Wheel width should be checked before settling on a tire, especially on a car that may have seen wheel changes over time. Matching the tire to the car's appearance goals is important, but so is confirming basic compatibility with the actual wheel on the vehicle.

The available 550-16 tires for a 1938 Plymouth Standard include both blackwall and wide whitewall sidewall styles. That gives the car two distinctly different visual directions while keeping the same basic vintage bias-ply size and overall period-style fitment.

Blackwall tires tend to suit a more understated presentation, while wide whitewalls can emphasize the car's late-1930s styling and make the wheel opening look more formal. Neither sidewall treatment should be assumed to be universally correct for every restoration goal. When historical accuracy matters closely, the final choice should be checked against period photos, marque references, and the way the individual car is being restored.

The 1938 Plymouth Standard has 550-16 tire options from Excelsior, Avon, BFGoodrich, and Firestone. Those brands appear across several classic bias-ply series, including Excelsior Bias Ply, Tourist Crossply, Silvertown Classic Bias Ply, and Firestone Classic Bias Ply.

Brand choice should be treated as part of the overall presentation and specification decision rather than a ranking exercise. Some options are offered in blackwall only, while others are also available as wide whitewalls, and certain tires include rim-width or load-related details that may matter to your setup. Comparing those differences is usually more useful than focusing on the brand name alone.

A 550-16 bias-ply tire is the correct starting point for a period-style 1938 Plymouth Standard because it preserves the proper vintage sizing convention and construction type for the car's era. Within that size, buyers can choose among blackwall and wide whitewall versions from several established brands and tire series.

The right choice depends on how the finished car is meant to look. A subdued restoration may lean toward blackwalls, while a more dressy presentation may call for wide whitewalls. Exact originality should not be assumed from size alone, so owners pursuing highly accurate restoration work should compare their tire selection against period photography, marque-club guidance, and other Plymouth-specific historical references.

Tire construction matters visually because a 1938 Plymouth Standard is built around a bias-ply look and stance. A 550-16 bias-ply tire supports the narrow, upright prewar presentation that suits the car's proportions, and the available sidewall treatments further shape whether the result looks restrained or more formal.

Appearance is not only about whitewall versus blackwall. The tire's overall vintage profile contributes to how the car sits, how the sidewall fills the wheel opening, and how authentic the finished restoration appears at a glance. For an owner focused on preserving prewar character, staying with the proper bias-ply size and evaluating sidewall style carefully usually matters more than chasing novelty.

Yes. Even though the primary fitment is a 550-16 bias-ply tire on a 16-inch rim, modifications can change whether that setup still matches the car in practice. Replacement wheels, brake conversions, altered ride height, suspension work, or body changes can all affect clearance and wheel compatibility.

A Plymouth that has remained stock is usually simpler to fit than one that has been updated over the decades. Before ordering tires, measure the actual wheel diameter and width, then check clearance at the fender, steering, and suspension through the full range of movement. On an older vehicle, it is better to verify the current setup than assume it still mirrors its original configuration.

Before road use, inspect the wheels for damage, confirm the tires are seated properly, and make sure inflation is appropriate for the tire and vehicle setup. The rest of the car matters too, especially on a prewar Plymouth, because worn steering parts, weak brakes, or tired suspension components can affect how safely and smoothly the new tires perform.

A longer look around the car is worthwhile after installation. Check for rubbing at full steering lock, verify valve stems and wheel hardware, and recheck air pressure after the first few drives. Collector cars often sit for long periods, so fresh tires should not be treated as the only preparation needed before returning the car to regular road use.

Collector-car tires should be maintained with regular pressure checks, visual inspections, and sensible storage habits. On a 1938 Plymouth Standard running 550-16 bias-ply tires, owners should watch for cracking, bulges, cuts, uneven wear, and signs of air loss, especially if the car is driven infrequently or stored for long stretches.

Storage conditions matter almost as much as mileage on an older vehicle. Keeping the car away from prolonged sunlight, moisture, excessive heat, and ozone sources can help preserve the tires' condition over time. Bias-ply tires also deserve periodic inspection even when tread looks good, since collector vehicles often age their tires out long before they wear them out.