Plymouth P26-1, 26-2 & 26-3 Tires

The listed tire size for the 1955 Plymouth P26-1, 26-2 & 26-3 is 670-15. That size is paired with 15-inch wheels, and the available products are all bias-ply designs. Product offerings for 670-15 include blackwall, narrow whitewall, and wide whitewall versions, so the basic fitment stays the same while the finished appearance can vary considerably.

That means the first job is simple: verify that your Plymouth P26-1, 26-2 & 26-3 still has its correct 15-inch wheels. After that, the real decision becomes restoration style and intended use, since a blackwall car presents differently from one wearing a wide whitewall even though both use the same nominal size.

On a Plymouth P26-1, 26-2 & 26-3, 670-15 is a numeric bias-ply size. The 670 refers to a nominal tire section width of about 6.70 inches, written without a decimal, and the 15 refers to the wheel diameter in inches. It is an older sizing system that predates modern metric radial codes, so it looks different from later passenger-car tire markings.

Understanding that code helps prevent a common mistake: treating 670-15 like a modern radial equivalent without checking the actual wheel and intended stance of the car. If your Plymouth P26-1, 26-2 & 26-3 is being restored for period appearance and original driving character, staying with the listed numeric bias-ply size is usually the right starting point.

The listed fitment for the Plymouth P26-1, 26-2 & 26-3 uses a 15-inch rim diameter. Across the available 670-15 products, the wheel diameter remains 15 inches, while recommended rim widths vary by tire line, commonly around 4.50 to 5.00 inches and in some cases extending a bit wider or narrower. The key dimension for basic fitment is the 15-inch wheel.

A quick measurement of the wheel or a check against the wheel stamping is worthwhile before choosing a tire for a Plymouth P26-1, 26-2 & 26-3 that has been modified over the years. Collector cars often pass through several owners, and wheel swaps are common enough that confirming the actual rim is better than relying on assumption.

Yes. The available tires for the Plymouth P26-1, 26-2 & 26-3 are bias-ply products in an older numeric size format, and a tube is required. That matches period tire practice for many mid-1950s applications and is an important part of assembling the tire and wheel correctly.

When fitting tires to a Plymouth P26-1, 26-2 & 26-3, treat the tube, flap if needed, and wheel condition as part of one complete system rather than thinking only about the outer casing. A sound wheel, proper tube fit, and careful mounting matter just as much as choosing the correct 670-15 size.

Plymouth P26-1, 26-2 & 26-3 tires in 670-15 are available in blackwall, narrow whitewall, and wide whitewall styles. The listings include narrow whitewalls around 1 inch as well as several wider whitewall treatments, plus plain blackwalls for a more restrained look. All of them share the same basic size and bias-ply construction.

That gives a Plymouth P26-1, 26-2 & 26-3 owner room to match the car’s finish level and restoration direction. A blackwall suits a simpler, lower-trim presentation, while a narrow or wide whitewall can move the car toward a more upscale mid-1950s appearance, so visual correctness matters almost as much as the size itself.

The available Plymouth P26-1, 26-2 & 26-3 tire brands include Firestone, US Royal, Coker Classic, Universal Vintage Tire, BFGoodrich, Excelsior, Goodyear, Avon, and STA. Most of these are offered in traditional bias-ply form within classic passenger-car series, while STA’s listing is part of the Super Transport family. Brand choice therefore affects both look and product character, not just the name on the sidewall.

For a Plymouth P26-1, 26-2 & 26-3, compare the brand offerings by sidewall style, tire series, and intended presentation rather than assuming every 670-15 is identical. Some buyers want a specific period brand identity, while others are chiefly trying to match a certain whitewall width or a more original-looking tread style.

Plymouth P26-1, 26-2 & 26-3 tires are offered in several series, including Firestone Classic Bias Ply, US Royal Classic Bias Ply, Coker Classic Bias Ply, Universal Classic Bias Ply, Silvertown Classic Bias Ply, Excelsior Bias Ply, Turbospeed Mk4, Super Cushion, Custom Super Cushion, Super Cushion Deluxe, and Super Transport. Most are period-style passenger-car bias-ply lines, while the names reflect different brand families, whitewall presentations, and intended historical character. Super Transport stands apart as a military and truck-oriented family.

That matters when selecting a tire for a Plymouth P26-1, 26-2 & 26-3 because the right series depends on whether the goal is mainstream 1950s passenger-car appearance, a brand-specific restoration theme, or a more utilitarian look. Start by choosing the visual style you want, then narrow the field by series and rim-width compatibility.

For a 1955 Plymouth P26-1, 26-2 & 26-3, the listed tire size is 670-15 on a 15-inch wheel. Because only one size is shown for this model group, confirming the correct fit comes down to checking that the car still uses its proper wheel diameter and that the tire chosen matches the wheel width range used by the specific product line.

A practical check is to inspect the wheel itself, compare it with the tire’s listed rim-width recommendation, and consider whether the car is restored, modified, or wearing replacement wheels from another Chrysler product. On a Plymouth P26-1, 26-2 & 26-3, the sidewall style can then be chosen with confidence once the wheel dimensions are settled.

A Plymouth P26-1, 26-2 & 26-3 should be stored in a cool, dry, dark space with the tires kept away from direct sunlight, electric motors, welders, and ozone-producing equipment. Clean floors, stable temperature, and protection from petroleum contamination all help preserve the rubber. Bias-ply collector tires benefit from long periods of quiet storage rather than frequent exposure to harsh conditions.

If the Plymouth P26-1, 26-2 & 26-3 will sit for months at a time, move it occasionally to avoid creating flat-spot memory in one section of the tread. Many owners also use jack stands or slightly increase attention to tire pressure during storage so the car is not resting on underinflated tires for an extended season.

Tires on a Plymouth P26-1, 26-2 & 26-3 should be inspected before each meaningful drive and more thoroughly several times a year. Look for sidewall cracking, tread separation, impact damage, irregular wear, valve stem issues, and any sign that the tube-equipped assembly has lost pressure. Collector cars often age their tires by time and storage conditions rather than by mileage alone.

That routine is especially important on a bias-ply Plymouth P26-1, 26-2 & 26-3 because the car may be driven infrequently, making small problems easy to miss until the next outing. A short visual check in the garage and a more careful hands-on inspection before tours or events can prevent unpleasant surprises on the road.

Tires on a Plymouth P26-1, 26-2 & 26-3 should be replaced when age, cracking, hardening, repeated air loss, vibration, or structural concerns appear, even if the tread still looks deep. Collector tires often become unsuitable because the casing and rubber age out long before the tread is worn away. Mileage alone is not a reliable guide on a car that sees occasional use.

A Plymouth P26-1, 26-2 & 26-3 that spends much of its life parked can still need new tires simply because time and storage conditions have taken their toll. If there is any doubt about an older tire’s condition, have it inspected by a specialist familiar with vintage bias-ply construction rather than relying on appearance from a few feet away.

The listed fitment for the Plymouth P26-1, 26-2 & 26-3 is 670-15, and the available product families are bias-ply series from brands such as Firestone, US Royal, BFGoodrich, Goodyear, Universal Vintage Tire, Excelsior, Avon, Coker Classic, and STA. Multiple series and sidewall styles are represented, including blackwalls and several whitewall widths. That means the size is clear, while the exact period-correct brand and styling choice depends on the individual car’s presentation.

For a Plymouth P26-1, 26-2 & 26-3 restoration, use the 670-15 size as the fixed point and then compare period photos, factory literature, and marque-club references to decide how the car should be finished. Details such as whitewall width can influence the final look more than many owners expect.

Yes, correct tire fitment can affect both judging and market impression for a Plymouth P26-1, 26-2 & 26-3. Judges and experienced buyers notice whether the size, construction type, sidewall style, and overall stance look appropriate for the era. A tire that is technically close but visually out of character can change how the whole car is perceived.

On a Plymouth P26-1, 26-2 & 26-3, the biggest authenticity choices are usually the 670-15 bias-ply format and the right whitewall treatment for the way the car is being restored. If show points or historical accuracy matter, compare the finished tire package against period references and guidance from Plymouth-focused clubs.

Plymouth P26-1, 26-2 & 26-3 tires are available in blackwall, narrow whitewall, and wide whitewall styles, and any of those can be appropriate depending on the car’s trim level and restoration theme. The available whitewall widths range from narrow one-inch treatments to much broader mid-1950s styles. Because all of them are offered in the same 670-15 size, the decision is mainly one of visual authenticity.

A Plymouth P26-1, 26-2 & 26-3 restored in a simpler or more utilitarian manner may look right on blackwalls, while a more upscale presentation often benefits from whitewalls. Study original photos of cars finished like yours, because the sidewall can strongly influence whether the restoration feels understated, deluxe, or show-oriented.

Yes, properly fitted new production tires in the listed 670-15 size can be suitable for public-road use on a Plymouth P26-1, 26-2 & 26-3 when the entire car is mechanically sound and the tires are in good condition. The available offerings are bias-ply tires, so they should be driven with the expectations appropriate to period construction rather than compared directly to modern radial behavior.

Safe road use in a Plymouth P26-1, 26-2 & 26-3 depends on more than the tire alone. Wheel condition, tube fit, steering components, brakes, alignment, and inflation all need to be right, and the driver should allow for the more deliberate response and road feel that come with a traditional bias-ply setup.

Before driving a Plymouth P26-1, 26-2 & 26-3, check tire pressure, visible sidewall condition, tread condition, valve stems, wheel fasteners, and any sign of rubbing or uneven wear. Because these are tube-type bias-ply tires, pressure retention and proper mounting condition deserve special attention. It is also wise to look over the suspension and steering if the car has been sitting.

A Plymouth P26-1, 26-2 & 26-3 rewards a careful pre-drive routine, especially after storage or before a longer trip. A few minutes spent checking the tire and wheel assemblies can reveal age cracks, a slow leak, or an alignment issue that would otherwise show up only after the car is already on the road.

A Plymouth P26-1, 26-2 & 26-3 fitted with period-style bias-ply tires should be driven at sensible, moderate speeds that respect the age and design of the car as a whole. Even when the tires are new, the vehicle’s steering, braking, suspension, and overall chassis dynamics remain those of a mid-1950s automobile. High-speed expectations should not be borrowed from modern cars.

In practice, the right pace for a Plymouth P26-1, 26-2 & 26-3 is one that keeps the car composed, tracks cleanly, and leaves a margin for braking and road irregularities. If the car wanders, vibrates, or feels unsettled, reduce speed immediately and inspect the tire, wheel, and chassis setup before further driving.