1941 Plymouth Tire Fitment Guide

1941 Plymouth vehicles covered here use two tire sizes: 600-16 and 650-16, and both apply to the Plymouth P11. Both sizes are bias-ply constructions and both mount on 16-inch rims. The listed rim-width range for 600-16 is 4.00 to 4.50 inches, while 650-16 is shown on 4.50 to 5.00 inch rims in the available product range.

That means the key fitment question for a 1941 Plymouth is not the wheel diameter, since both sizes are 16-inch, but which size matches your car’s setup and wheel width. If your Plymouth has been restored, driven for years, or fitted with replacement wheels at some point, verify the actual wheel before choosing. A close check of the current tires, wheel width, and your restoration goals will usually point you to the correct size.

On a 1941 Plymouth, 600-16 is a numeric bias-ply tire size. The 600 refers to the nominal section width in the older inch-based sizing system, and the 16 refers to the wheel diameter in inches. That style of size marking is typical of prewar and early postwar American cars and differs from later alphanumeric and modern metric radial sizes.

Understanding that older code helps you avoid comparing it too literally to a modern metric tire size. A 600-16 on a 1941 Plymouth is chosen as part of a period-correct bias-ply fitment, with available products offered in blackwall and wide whitewall versions. If you are replacing an existing set, match the size marking first, then confirm the wheel width and the look you want before settling on a specific tire.

On a 1941 Plymouth, 650-16 is also a numeric bias-ply size. The 650 identifies the nominal section width in the traditional inch-style numbering system, and the 16 identifies a 16-inch rim diameter. Like 600-16, it belongs to the prewar-era sizing language used long before P-metric and modern radial sizing became standard.

The practical takeaway is that 650-16 is not a modern metric equivalent but a period-format size that should be treated on its own terms. A 1941 Plymouth owner choosing 650-16 should confirm that the wheel width suits that size and decide whether a blackwall or wide whitewall better matches the car’s intended appearance. That approach keeps the fitment and the visual character aligned with the era of the car.

A 1941 Plymouth owner choosing between 600-16 and 650-16 is comparing two period-style bias-ply sizes, not choosing between bias-ply and radial construction. Both fit 16-inch rims, but they are distinct sizes with different approved rim-width ranges in the available offerings: 600-16 appears on 4.00 to 4.50 inch rims, while 650-16 appears on 4.50 to 5.00 inch rims. That makes wheel width and the size already associated with the car the first things to confirm.

From a buying standpoint, the decision usually comes down to preserving the size your Plymouth already uses and the stance you want the car to present. The 600-16 is the narrower-looking choice, while 650-16 gives a fuller visual footprint in the same general prewar bias-ply family. If originality matters, compare your current tire markings, wheel width, and any factory or club references tied to your specific P11 configuration before making the final call.

1941 Plymouth tires are available in both blackwall and wide whitewall styles within the listed 600-16 and 650-16 offerings. In 600-16, blackwall and wide whitewall choices appear across brands including Coker Classic, Avon, BFGoodrich, and Firestone. In 650-16, blackwall and wide whitewall options also appear, including examples from Coker Classic, Firestone, BFGoodrich, and Garfield.

That gives a restorer room to tune the car’s appearance without moving away from an era-correct bias-ply format. Blackwalls usually suit a simpler, more utilitarian presentation, while wide whitewalls create a more formal, showroom-style prewar look that many collectors prefer on upscale restorations. The right choice for a 1941 Plymouth often depends less on fitment than on how authentic you want the finished car to look for your trim level, market style, and event goals.

Several brands offer tires for 1941 Plymouth applications in the listed sizes. The 600-16 range includes BFGoodrich, Coker Classic, Firestone, and Avon, while the 650-16 range includes BFGoodrich, Coker Classic, Firestone, and Garfield. All of the listed options stay within a bias-ply format appropriate to the car’s era, but they differ in sidewall presentation and, in some cases, load or speed markings.

Brand choice on a 1941 Plymouth usually comes down to the combination of visual style and specifications you want rather than one brand being universally right for every owner. A whitewall BFGoodrich or Firestone may suit a high-visibility restoration, while a blackwall Coker Classic or Firestone can keep the look more restrained. If you are comparing across brands, pay attention to size marking, sidewall style, wheel-width suitability, and any speed or load marking that appears on the individual tire.

The available 1941 Plymouth tire offerings show a clear split by size. Products in 600-16 are listed for 4.00 to 4.50 inch rim widths, while 650-16 products are listed for 4.50 to 5.00 inch rim widths where rim-width details are given. Both sizes use 16-inch wheel diameter, but the approved width range is not the same from one size to the other.

That matters because two tires can share the same wheel diameter and still call for different wheel widths to sit correctly. Before fitting a new set to a 1941 Plymouth, measure the wheel or confirm its specification instead of assuming any 16-inch wheel is automatically right for either size. Matching the tire to the proper wheel width helps preserve the intended profile, steering feel, and sidewall shape on a prewar bias-ply setup.

A 1941 Plymouth can use both listed sizes on 16-inch wheel diameter, so the wheel diameter itself does not separate 600-16 from 650-16. The important difference is wheel width: 600-16 appears with 4.00 to 4.50 inch rim-width guidance, while 650-16 appears with 4.50 to 5.00 inch guidance in the available range. That creates some overlap at 4.50 inches but not complete interchangeability across every wheel.

In practical terms, some original 1941 Plymouth wheels may suit both sizes, while others may be better matched to only one of them. The right move is to verify the actual wheel width on your car before assuming a size swap is appropriate. That is especially important on older cars that may have had wheels exchanged over decades of service, restoration, or parts sourcing from related prewar Mopar vehicles.

A stored 1941 Plymouth should be kept out of direct sunlight and away from electric motors, battery chargers, welders, furnaces, and other ozone-producing sources that can age rubber faster. Clean, dry floors and stable temperatures help, and the tires should be kept properly inflated while the car sits. Bias-ply tires are especially prone to developing temporary flat-spotting after long periods in one position.

Moving the car periodically, rolling it to a new contact patch, or supporting the vehicle correctly during long storage can help reduce flat-spotting and stress on the carcass. If the car sits for an entire season, inspect the sidewalls closely before returning it to use. A 1941 Plymouth stored carefully will usually reward you with better ride quality, fewer age-related cracks, and less surprise work at the start of driving season.

Tires on a 1941 Plymouth should be judged more by age and condition than by miles driven, because collector cars often see limited seasonal use. A good working rule is to evaluate them closely once they are in the five-to-seven-year range and to treat around ten years from the date code as a serious replacement point even if tread still looks presentable. Rubber hardens and ages long before many antique cars wear tires out.

That means a lightly driven 1941 Plymouth can still need new tires even when the tread appears respectable at a glance. Check the DOT or manufacturer date information where applicable, inspect for cracking or stiffness, and consider how the car is used. A parade car, local cruiser, and long-distance tourer may all accumulate miles slowly, but age-related degradation matters to all three in essentially the same way.

Tires on a 1941 Plymouth should be inspected before every drive and again before any longer outing or touring event. Look for sidewall cracking, cuts, bulges, irregular wear, and obvious pressure loss, and give the tread and bead area a careful visual check while the car is stationary. Since these are bias-ply applications, changes in shape or tracking feel should be taken seriously rather than dismissed as normal antique-car behavior.

A quick routine inspection catches most problems before they interrupt a drive or damage a hard-to-replace wheel. If the car has been sitting, include valve stems and the spare in the check, and make sure all tires are holding pressure evenly. A 1941 Plymouth that sees regular pre-drive inspections is much less likely to surprise you with avoidable age, storage, or inflation issues on the road.

A 1941 Plymouth P11 would have been fitted in the bias-ply era, so a bias-ply tire is the authentic construction type for restoration-minded owners. The sizes associated here with the P11 are 600-16 and 650-16, both in traditional numeric bias-ply format on 16-inch rims. That aligns with what collectors expect from a prewar American passenger car, even though exact original fitment can vary by body style, market, or wheel equipment.

For a restoration, the safest approach is to begin with a bias-ply tire in the size that matches your car’s current verified setup or factory reference material. Sidewall style also matters, since blackwalls and wide whitewalls create very different period appearances. If your 1941 Plymouth is being judged or restored to a narrow standard, compare your choice against Plymouth literature, marque specialists, and club references before finalizing the tire size and sidewall look.

Correct tire fitment matters quite a bit when a 1941 Plymouth is judged for authenticity. Size, construction type, and sidewall style all affect whether the car looks faithful to the period, and judges or knowledgeable enthusiasts will notice obvious departures from the expected prewar presentation. A bias-ply tire in the proper numeric size family supports the car’s stance and visual language in a way a visibly modern alternative would not.

Show standards are not identical from one event to another, so the strictness of judging may vary, but tire details are rarely ignored on a serious restoration. The biggest issues are usually the wrong overall look, the wrong sidewall treatment for the car’s intended presentation, or a size that changes the car’s proportions. Before entering a 1941 Plymouth in judged competition, compare your tire choice against event rules and marque-club guidance rather than relying on appearance alone.

On a 1941 Plymouth, the main difference between blackwall and wide whitewall tires is visual authenticity and presentation rather than a change in basic construction, because both styles are offered in the same bias-ply size families. Blackwalls give the car a plainer, more businesslike appearance, while wide whitewalls emphasize the more formal and upscale styling language common to many prewar American cars. Both styles are available within the listed 600-16 and 650-16 options.

That means the right choice depends on how you want the P11 to read visually at first glance. A blackwall setup can suit a restrained driver or a more utilitarian restoration, while a wide whitewall can dramatically change the car’s character in a direction many collectors associate with period showroom elegance. If authenticity is your priority, compare your choice to period photos or club references tied to body style and trim presentation.

1941 Plymouth tires can be suitable for highway driving when they are in proper condition, correctly fitted, and used within their construction and rating limits. The listed sizes here are bias-ply, and one 600H16 Avon carries an H speed rating, which corresponds to a 130 mph ceiling, while other available products are traditional bias-ply offerings without that same type of speed marking shown in the size line. In normal use, a properly maintained tire is only one part of the highway equation on a prewar car.

The larger safety question for a 1941 Plymouth is usually the overall condition of the car, including brakes, steering, suspension, and alignment, rather than whether the tire itself has an unusually high speed ceiling. Highway use should be approached with realistic expectations for a 1941 chassis and with fresh attention to pressure, age, and visible condition. A well-sorted car on sound tires is far different from an unrestored car simply fitted with new rubber.

Inflation pressure on a 1941 Plymouth should be set with the car’s factory recommendation in mind, while also respecting the tire’s own published load-and-pressure limits. In the available offerings, several 600-16 tires show a maximum load of 1400 at 32 psi, and several 650-16 tires show 1580 at 32 psi. Those figures are tire capacity references, not a blanket instruction to run every Plymouth at the maximum listed pressure.

The practical approach is to start with the original Plymouth guidance for the vehicle and compare it to the specifications on the exact reproduction tire you are considering. Pressure that is too high can affect ride and footprint, while pressure that is too low can create heat and handling issues. Keep the sizes separate in your thinking, since a pressure or load figure shown for 600-16 should not automatically be transferred to 650-16.

Before a longer drive in a 1941 Plymouth, inspect every tire for cracking, cuts, bulges, uneven wear, and stable inflation, and do the same for the spare. Confirm that the tires are the correct size for the wheels, that valve stems are in good condition, and that the tread surfaces are free of embedded damage. Since this is a prewar car on bias-ply tires, any vibration, pull, or sudden change in feel deserves attention before setting out.

A tire check should be part of a broader pre-drive inspection that also includes wheel fasteners, brakes, steering, lights, and fluid levels. Long drives ask more of an antique car than a local cruise does, and a spare tire that has aged in the trunk for years is not much help if it is cracked or underinflated. Giving the 1941 Plymouth a thorough once-over before departure is one of the easiest ways to protect both the car and the trip.