1929 Plymouth Tire Fitment Guide

1929 Plymouth vehicles in this guide use two bias-ply sizes: 28X4.75 and 475-19, both tied to the 1929 Plymouth 4 Cyl. model. The 475-19 size mounts on a 19-inch rim, and the listed products for that size specify a 3-inch rim width. The 28X4.75 size is an older diameter-by-section designation and should be matched to the wheel already fitted to the car rather than assumed interchangeable with 475-19.

That means a 1929 Plymouth owner should not choose by appearance alone. Start by checking the tire size currently on the car, then confirm the wheel diameter directly before selecting a replacement. On a car of this age, wheel changes over the decades are common, so the safest path is to verify the actual wheel and tire marking instead of relying only on year and make.

A 28X4.75 tire on a 1929 Plymouth uses an antique diameter-by-section format. The first number, 28, refers to the tire’s overall outside diameter, while 4.75 refers to nominal section width. That is different from later numeric sizing, where the final number usually identifies wheel diameter. It is also a bias-ply construction, which is correct for the period.

Because this format reads differently from a size like 475-19, it is easy to mistake one for the other. A restorer or driver should treat 28X4.75 as its own specific fitment and confirm what is actually mounted on the car before replacing anything. If the wheel or tire has been changed at some point, the size molded into the current tire and the wheel diameter itself should guide the next step.

A 475-19 tire on a 1929 Plymouth is a numeric bias-ply size. The 475 corresponds to a nominal 4.75-inch section width, and the 19 indicates a 19-inch wheel diameter. For this size, the available examples are Goodyear Deluxe All-Weather tires with a 900-pound maximum load rating at 32 psi, offered in both Blackwall and Wide Whitewall versions.

That makes 475-19 the more familiar of the two listed Plymouth sizes because the rim diameter is stated directly in the code. If your car uses 19-inch wheels, this size is the natural place to focus your search. The sidewall choice then becomes an appearance decision, while the wheel itself still needs to be checked for proper width and overall condition before fitting new tires.

A 1929 Plymouth owner should choose between 28X4.75 and 475-19 by confirming the actual wheel and existing fitment, not by treating them as interchangeable alternatives. Both are bias-ply sizes and both apply to the Plymouth 4 Cyl., but 475-19 is a 19-inch rim fitment while 28X4.75 uses an antique diameter-by-section naming system that points to a different style of sizing reference.

The practical takeaway is simple: identify what is already on the car first. If your Plymouth carries 19-inch wheels and you want a listed product option with period-correct bias-ply character, 475-19 is the straightforward path. If your car is set up for 28X4.75, stay with that fitment and verify the wheel carefully before making a change, especially on a long-restored or mixed-parts car.

1929 Plymouth tires in the listed 475-19 size are available in both Blackwall and Wide Whitewall form. Both are Goodyear Deluxe All-Weather bias-ply tires and share the same published load figure of 900 pounds at 32 psi. The 28X4.75 size has no sidewall style range listed here, so the sidewall choice shown for 1929 Plymouth centers on 475-19.

For a restoration, sidewall style affects the visual impression almost as much as wheel finish and hubcaps. Blackwall usually suits a plainer, earlier, or more utilitarian appearance, while a wide whitewall can deliver a more formal period look. If your Plymouth is being prepared for judged display, confirm the expected sidewall treatment with a marque expert or event standard before finalizing the look.

Goodyear is the listed brand for 1929 Plymouth in the 475-19 size. The available products are both from the Goodyear Deluxe All-Weather line, with one Blackwall version and one 2.875-inch Wide Whitewall version. Both are bias-ply tires intended to suit the period character of a late-1920s Plymouth.

For a buyer, brand choice on this page is really tied to the size being pursued. If your car uses 475-19, the available route shown here is Goodyear, and the next decision becomes sidewall appearance rather than changing among multiple brands. If your Plymouth carries the alternate 28X4.75 fitment, confirm that size first so you can compare the correct tire category for the wheel already on the car.

1929 Plymouth tires in the 475-19 size are shown on a 3-inch rim width. That figure applies to the listed Goodyear bias-ply products in that size and pairs with a 19-inch rim diameter. The 28X4.75 fitment appears as a valid Plymouth size as well, but no separate rim width figure is shown here for that size.

Use the 3-inch specification as a direct guide only for 475-19. On a car this old, wheels may have been replaced, repaired, or swapped over time, so measuring the wheel before mounting a new tire is worthwhile even when the size code seems clear. A careful check prevents mismatch between tire profile and wheel, which matters for appearance, mounting, and road behavior.

The listed 1929 Plymouth products do not carry a tube-type or tubeless marking in the size line, so tube requirement is not separated by product here. Given the 1929 application and bias-ply construction, many owners working with original-style wheels treat tube use as part of the normal setup for early collector vehicles. Wheel condition, bead seat design, and the exact tire specification should all be considered together.

The practical step is to inspect the wheel you plan to use and confirm the tire’s sidewall marking before installation. Original or original-style rims from this era often need a tube, flap, or other period-correct setup details to be handled properly. If your Plymouth has replacement wheels from a later period, that can change the conversation, so the wheel itself matters as much as the tire size.

A 1929 Plymouth should be stored away from direct sunlight, electric motors, battery chargers, welders, furnaces, and other ozone-producing equipment that can age the rubber. Bias-ply tires also dislike sitting in one position for long periods, especially on a car that is rarely driven. Clean, dry flooring and stable indoor temperatures help reduce moisture-related wheel and tire deterioration.

Move the Plymouth periodically if possible, or place it on stands correctly if it will sit for an extended period. That helps reduce flat-spotting and relieves constant load on the same section of the casing. Keep the tires properly inflated during storage rather than letting them sag, because underinflation while parked can do as much long-term harm as hard use on the road.

Tires on a 1929 Plymouth should be judged more by age and condition than by mileage, because collector cars often accumulate little road use. A sensible rule is to evaluate them closely after about five to seven years and to treat around ten years as the point where replacement deserves serious consideration, regardless of remaining tread. The DOT date code on modern reproduction tires is the reference point for age.

That matters because a lightly used antique car can still be riding on old rubber that looks serviceable at a glance. Sidewall cracking, hardening, tread separation signs, or repeated air loss all shorten the useful life. If the Plymouth is used mainly for tours or local shows, age-based replacement planning is far more realistic than waiting for the tread to wear out.

Tires on a 1929 Plymouth should be inspected before every drive and given a more thorough check before any longer outing. Look for sidewall cracking, cuts, bulges, irregular wear, and signs that the tire is no longer holding pressure consistently. On an early car, wheel condition and valve stem condition deserve equal attention because they directly affect reliability on the road.

That inspection routine should become part of the Plymouth’s normal pre-drive habit, alongside fluid and brake checks. A short local drive can quickly become inconvenient if an old tire or valve issue is missed. If the car uses inner tubes, pay close attention to slow pressure loss and stem condition, since tube-related issues may appear before the outer casing shows obvious distress.

A 1929 Plymouth 4 Cyl. would have been equipped in the bias-ply era, so bias-ply construction is the correct historical starting point. The sizes associated here with the model are 28X4.75 and 475-19, both period-appropriate style designations for an early Plymouth application. No original equipment brand should be assumed from that alone, even though modern reproduction choices in 475-19 are available from Goodyear.

For a restoration, construction type comes first, then the exact size and sidewall look. If the goal is strict authenticity, compare your car’s wheel setup, factory literature if available, and advice from Plymouth marque clubs or early Chrysler specialists. That extra step is worthwhile because surviving cars from this era often have a long service history that may include wheel and tire changes.

Correct tire fitment absolutely matters when a 1929 Plymouth is judged for authenticity. Size, construction type, and sidewall appearance all influence whether the car looks era-correct, and judges often notice a mismatch immediately because tires affect stance and proportion. On a late-1920s car, the use of proper bias-ply construction is part of presenting the car in a historically believable way.

That does not mean every show applies the same standard, so the event matters. A touring-focused show may care less than a concours-style class, but a visibly incorrect sidewall treatment or an obviously wrong size can still distract from an otherwise accurate restoration. Before finalizing your Plymouth, check the rules of the event and compare them with marque-club guidance for accepted tire appearance.

For the 1929 Plymouth in 475-19, the Goodyear Deluxe All-Weather Blackwall and the Goodyear Deluxe All-Weather 2.875 inch Wide Whitewall share the same basic size, bias-ply construction, 19-inch rim diameter, 3-inch rim width, 900-pound load rating at 32 psi, and 15-pound weight. The meaningful difference is the sidewall appearance: one is plain black, and the other uses a wide white sidewall treatment.

That means the choice is primarily about restoration presentation rather than a change in fitment. A blackwall gives a more restrained and utilitarian look, while the wide whitewall creates a more formal visual statement that many owners prefer on period builds. If you are matching an existing restoration theme, wheel finish, and trim level appearance, sidewall style should be chosen with the full car’s presentation in mind.

1929 Plymouth tires can be roadworthy for normal use when they are the correct size, in sound condition, properly mounted, and inflated correctly, but they are bias-ply tires for an early automobile. No speed rating is listed for the Plymouth products shown here, so the sensible limit is set less by modern tire expectations and more by the car’s age, chassis behavior, braking ability, and the condition of the tire itself.

For real-world driving, that means treating a 1929 Plymouth as a vintage car, not a modern commuter. Short highway stretches may be reasonable when the car is well sorted, but sustained high-speed travel is a different question. Before longer drives, evaluate the full mechanical package, because steering play, brake balance, wheel integrity, and suspension condition may become limiting factors before the tires do.

For the listed 1929 Plymouth 475-19 products, the published load figure is 900 pounds at 32 psi. That is a tire rating reference, not automatically the same as the vehicle maker’s recommended operating pressure for every use condition. Pressure should always be matched to the exact tire size and product you are using rather than borrowed from another Plymouth size or from a different construction.

The best practice is to start with the original owner’s manual or period Plymouth service information for vehicle guidance, then compare that with the tire manufacturer’s rated pressure information for the reproduction tire you selected. If your car uses 28X4.75 instead of 475-19, keep the pressure discussion specific to that size. On an antique car, small pressure differences can noticeably affect ride, steering feel, and tread wear.

Before taking a 1929 Plymouth on a longer drive, inspect each tire for cracks, cuts, bulges, uneven wear, embedded debris, and proper inflation. Check the valve stems, the spare, and the wheel itself for any obvious damage or looseness. Because this is an early bias-ply application, tire condition should be judged alongside the age of the rubber, not just tread depth.

That tire inspection should happen as part of a broader pre-tour check that includes brakes, steering, wheel bearings, fluids, and lighting. A vintage Plymouth asks for more preparation than a modern car, and tire issues are easiest to solve in the garage rather than on the roadside. If the car has been parked for a while, a short local shake-down drive before the main trip is a smart final check.