Plymouth Economy Tires
The Plymouth Economy was part of Plymouth’s late-1930s effort to deliver practical, affordable transportation during a period when American cars were becoming more refined in ride and styling. Built for 1939, Plymouth Economy belongs to the prewar era, where tire selection still depends heavily on period-correct construction and proportions rather than modern sizing logic. Choosing tires for Plymouth Economy is less complicated by year-to-year changes than by understanding its older numeric bias-ply size system and matching it to the proper wheel. Before selecting a tire, confirm that your Plymouth Economy still carries its 16-inch wheels and that the wheel width falls within the range used by the available tires.
Plymouth Economy Tire Size Guide
Plymouth Economy uses one tire size across its production span from 1939 to 1939: 550-16. This is a numeric bias-ply size, where 550 indicates a nominal section width of about 5.50 inches and 16 is the wheel diameter in inches. Available products for this size use a 16-inch rim, with listed rim width ranges including 3.25 to 4.00 inches where specified. Six products are offered in this size across Excelsior, Avon, BFGoodrich, and Firestone, with both blackwall and wide whitewall choices. Because every listed option is bias-ply construction, a tube is required.
Plymouth Economy Tires by Year
The year listing for Plymouth Economy shows which tire size applies to each model year and helps narrow the selection to the correct fitment. Plymouth Economy uses a single 550-16 size for 1939, so the main check is confirming that the car still carries its original 16-inch wheels. Prewar fitment work is best verified against original vehicle literature or a knowledgeable Plymouth specialist when a car has been restored or modified.
1939 Plymouth Economy
- 550-16
Best Plymouth Economy Tires for Sale
Six products are available across four brands for Plymouth Economy tires in 550-16. Blackwall and wide whitewall options are offered, so confirm the correct size and 16-inch rim diameter before selecting.
550-16 Products
These are the available products for 550-16.
Frequently Asked Questions
The FAQs below focus on the Plymouth Economy’s single prewar bias-ply tire size, 16-inch wheel fitment, available sidewall styles, and what to check when choosing tires for a restored or regularly driven 1939 car.
Size Basics & Fitment
The Plymouth Economy uses one listed tire size: 550-16 for 1939. Every available product for Plymouth Economy in this range is built for a 16-inch rim and uses bias-ply construction. That makes the basic fitment picture straightforward compared with many prewar cars that changed wheel diameters or offered several sizes in the same year.
The practical job is confirming that your Plymouth Economy still has 16-inch wheels and that the wheel width is appropriate for the tire you choose. If the car has been modified over the years, check the stamping on the wheel, compare it with period literature, and inspect whether the wheel condition is suitable for tube-type bias-ply service.
On a Plymouth Economy, 550-16 is a numeric bias-ply size. The 550 portion refers to a nominal section width of about 5.50 inches, while the 16 identifies the wheel diameter in inches. It is an older sizing system used widely on prewar and early postwar American cars before modern metric and alphanumeric designs became common.
Understanding that code helps you avoid confusing a period bias-ply tire with a later modern replacement size that may mount differently or alter the car’s stance. When keeping a Plymouth Economy visually and mechanically correct, match the 550-16 size to the proper 16-inch wheel and choose the sidewall style that best suits the car’s restoration goals.
Yes, the Plymouth Economy should be treated as a tube-type application with the listed 550-16 bias-ply tires. All available products for this fitment are bias-ply, and that period of wheel and tire design normally relies on an inner tube rather than a modern tubeless setup. Tube service is part of correct prewar tire installation.
When fitting tires to a Plymouth Economy, inspect the wheel carefully for rust, burrs, or damage that could affect the tube. It is also wise to make sure the flap, valve stem fit, and overall wheel preparation are appropriate for collector-car use, especially if the car has sat for long periods or wears older restored wheels.
Buying the Right Tire
Plymouth Economy tires are available in both blackwall and wide whitewall forms in the 550-16 size. The listed whitewall options include BFGoodrich with a 2.25-inch whitewall and Firestone with a 2.50-inch whitewall, alongside blackwall choices from Excelsior, Avon, BFGoodrich, and Firestone. That gives restorers and drivers more than one visual direction while staying within the correct size.
Blackwall tires usually suit a more restrained factory-style appearance, while wide whitewalls create a stronger period presentation that many owners prefer on a restored prewar car. The best choice for a Plymouth Economy depends on how the car is trimmed, how original the restoration is, and whether appearance or historical conservatism matters more to the owner.
Four brands are represented in the available Plymouth Economy tire range: Excelsior, Avon, BFGoodrich, and Firestone. All are offered in the 550-16 size, and all listed products use bias-ply construction. The main differences within the group are brand, sidewall style, and tire series rather than basic fitment dimensions.
For a Plymouth Economy owner, that means the decision is less about whether the tire will fit and more about how closely the tire matches the intended character of the car. Some buyers prioritize a traditional blackwall touring look, while others want a recognizable period-style whitewall presentation for show use or a more finished restoration.
Plymouth Economy tires are offered in several series, including Excelsior Bias Ply, Tourist Crossply, Silvertown Classic Bias Ply, and Firestone Classic Bias Ply. All are bias-ply tires in the same 550-16 fitment, but they represent different branded lines and visual presentations within period-style construction. The Avon Tourist carries a crossply designation, while the BFGoodrich and Firestone options are presented as classic bias-ply series.
For most Plymouth Economy buyers, the important distinction is how the tire supports the look and driving character they want rather than a change in basic size. If the goal is a consistent period appearance, compare the sidewall treatment and brand identity across the car as a full set rather than choosing one tire at a time.
Maintenance & Longevity
A Plymouth Economy should be stored in a cool, dark, dry space with the tires kept away from direct sunlight, ozone sources, and large temperature swings. Bias-ply collector tires benefit from clean floors, correct inflation, and avoiding prolonged contact with petroleum products or solvents. Long stationary periods can create flat spotting or stress the casing if the car is left neglected.
If a Plymouth Economy will sit for months, move it occasionally or support it in a way that reduces sustained load on one contact patch. Owners who use the car only for shows or occasional drives should also check inflation before each outing, because a prewar car on bias-ply tires responds poorly to long-term underinflation.
Tires on a Plymouth Economy should be inspected before every drive and more thoroughly several times a year, even if the car covers very few miles. Bias-ply collector tires and the tube-type wheel systems commonly used with them deserve close attention to cracking, cuts, sidewall changes, uneven wear, and valve stem condition. A low-mileage restoration can still develop age-related issues.
Prewar cars place a premium on prevention, so inspection should include the wheels, the beads, and any signs that the tire has shifted or lost air while parked. A Plymouth Economy that spends most of its life in storage can look fine at a glance, yet still need service because age and inactivity affect vintage tires as much as road mileage does.
A Plymouth Economy tire should be replaced when age, cracking, hardening, impact damage, or casing deterioration appears, even if the tread still looks deep. Collector tires often age out long before they wear out, especially on cars that are driven sparingly and stored for display. Tread depth alone is not a reliable measure of serviceability on a prewar Plymouth.
The right habit is to treat time and condition as the deciding factors, not mileage. On a Plymouth Economy, a specialist inspection is worthwhile whenever the tires are several years old, the car has unknown storage history, or the wheels and tubes have not been serviced together as a complete system.
Restoration & Authenticity
The Plymouth Economy is associated here with the 550-16 size for 1939, and the available replacement offerings are all bias-ply tires. Several series are represented, including Excelsior Bias Ply, Tourist Crossply, Silvertown Classic Bias Ply, and Firestone Classic Bias Ply. That gives a strong period-correct direction in size and construction, even though individual factory delivery details can vary by how a specific car was sold or restored.
For restoration work, the most useful approach is to start with the 550-16 bias-ply fitment and then compare sidewall style and brand presentation with surviving photos, original literature, and marque references. A Plymouth Economy prepared for judging may need closer attention to visual details than a touring car restored mainly for driving enjoyment.
Yes, correct tire fitment can influence both presentation and perceived authenticity on a Plymouth Economy. Judges and knowledgeable collectors notice whether the size, construction type, and sidewall appearance are appropriate for the car’s period character. A 1939 prewar Plymouth looks and sits differently on the proper 550-16 bias-ply tire than it would on a modern substitute.
That does not mean every Plymouth Economy must wear the same visual treatment, but it does mean consistency matters. Owners seeking stronger show results should compare their chosen tire against period photos, club guidance, and the overall restoration theme, especially when deciding between blackwall and wide whitewall options.
Plymouth Economy tires are available in blackwall and wide whitewall styles in the correct 550-16 size. Either can suit a prewar restoration depending on how the specific car was trimmed and how the owner wants the finished presentation to read. The available whitewall widths include 2.25-inch and 2.50-inch styles, while blackwall options give a more restrained period look.
A careful restoration choice comes down to matching the sidewall to the car rather than treating every 1939 Plymouth Economy the same. If the goal is factory-style understatement, blackwall is often the safer direction; if the car is being restored with a more dressed, show-oriented appearance, a wide whitewall may be the better visual fit.
Safety & Road Use
A properly installed, properly maintained 550-16 bias-ply tire can be suitable for public-road use on a Plymouth Economy when the rest of the car is equally sound. That includes the wheels, tubes, brakes, steering, suspension, and alignment, all of which play a major role in how a prewar car behaves at speed. Safe road use depends on the condition of the whole vehicle, not the tire alone.
A Plymouth Economy owner should approach road use with realistic expectations about bias-ply handling, braking distances, and steering response compared with modern cars. Shorter drives, moderate speeds, and regular inspections are the sensible pattern, especially for a car that spends most of its life in storage or occasional hobby use.
Before driving a Plymouth Economy, check tire inflation, visible sidewall condition, tread surface, valve stems, and whether the tires have stayed seated and stable on the wheels. A prewar Plymouth also deserves a quick review of wheel fasteners, steering feel, brake operation, and any signs of fluid leakage or suspension looseness. Small mechanical issues matter more on older cars with period-style tires.
That walk-around takes only a few minutes but can prevent a roadside problem that would be minor on a modern car and serious on a 1939 Plymouth Economy. If the car has been parked for an extended period, the first drive should be conservative until the tires warm slightly and the whole chassis proves stable and predictable.
A Plymouth Economy on period-style 550-16 bias-ply tires should be driven at moderate, sensible speeds that respect both the tire design and the limits of a 1939 chassis. Even when new production tires are used, the car will not respond like a modern vehicle in lane changes, braking, or emergency maneuvers. Speed should always be matched to road conditions, mechanical condition, and driver experience with prewar cars.
The wisest approach is to treat a Plymouth Economy as a collector car meant for steady touring rather than high-speed travel. If the car is newly restored or recently returned to service, begin with short local runs and build confidence only after confirming that the tires, wheels, steering, and brakes all work together consistently.