1946 Mercedes-Benz Tire Fitment Guide

1946 Mercedes-Benz vehicles covered here use one tire size: 550-16, and that fitment applies to the 1946 Mercedes-Benz 170. All available products in this application are bias-ply tires built for 16-inch wheels. Where rim width guidance is stated, 550-16 products are intended for rims in the 3.25- to 4.00-inch range, which gives you a useful checkpoint when comparing reproduction tires to the wheels on the car.

That means the usual first question is not which of several sizes fits a 1946 Mercedes-Benz, but whether your car is in fact a 170 and whether the wheel matches the original 16-inch setup. Once that is confirmed, the remaining choices come down to brand, sidewall appearance, and the character of a traditional bias-ply tire rather than moving between alternate sizes.

On a 1946 Mercedes-Benz tire, 550-16 is a classic numeric bias-ply size. The 5.50 refers to the nominal section width in inches, while the 16 identifies the wheel diameter in inches. Unlike later metric radial sizing, there is no separate aspect-ratio figure in the code, and the format belongs to the period when bias-ply construction was standard passenger-car practice.

That matters because a modern buyer may expect a more detailed code with width, profile, and radial construction all spelled out. On a 1946 Mercedes-Benz 170, the key point is that 550-16 is already the complete fitment language for the intended wheel size. If your goal is an accurate restoration look and era-correct tire profile, staying with this numeric bias-ply format keeps the car visually and mechanically in character.

Within the 1946 Mercedes-Benz range covered here, yes: the listed model uses the same tire size. The 170 is fitted with 550-16 bias-ply tires on 16-inch wheels, so there is no split between multiple model-specific sizes on this page. That makes the fitment side much simpler than on later model years or larger ranges where different body styles and trim levels often branch into separate tire specifications.

Even with a shared fitment, buyers still have meaningful choices to make. A 1946 Mercedes-Benz owner may prefer a blackwall tire for a restrained European appearance or a wide whitewall for a more stylized presentation, depending on how the car is being restored and shown. The important thing is to keep the size itself correct first, then choose the sidewall style that suits the finish you want.

1946 Mercedes-Benz tires in 550-16 are available in both blackwall and wide whitewall form. Blackwall choices are offered by Excelsior and Avon, while wide whitewall versions are offered by BFGoodrich and Firestone. All of them stay within the same basic bias-ply construction and 16-inch fitment, so the sidewall treatment is mainly a visual and presentation choice rather than a change in size.

For many 1946 Mercedes-Benz restorations, blackwall tends to preserve the more understated postwar European character of the 170. Wide whitewalls can still appeal to owners building a car for a broader period look or a certain show style, but they create a noticeably different visual impression. If authenticity is your priority, compare your intended market presentation and judging expectations before settling on the sidewall style.

Four brands offer tires for 1946 Mercedes-Benz fitment in 550-16: Excelsior, Avon, BFGoodrich, and Firestone. Each one serves the same basic size and bias-ply construction requirement for the 1946 Mercedes-Benz 170, but they differ in sidewall presentation and, in some cases, supporting published specifications such as load figures or rim width guidance. That gives buyers a useful spread of heritage-style options without changing the fitment itself.

Brand choice on a 1946 Mercedes-Benz usually comes down to how you want the finished car to look and how closely you want to follow a particular restoration style. Some owners prioritize a plain blackwall presentation, while others want a whitewall that better matches the car’s visual theme. Once the size is confirmed as 550-16, choosing among these brands is mostly about appearance and confidence in the product line’s vintage character.

For the 1946 Mercedes-Benz 170 in 550-16, the Firestone offering is a wide whitewall bias-ply tire with a published maximum load of 840 pounds at 32 psi and a stated rim-width range of 3.25 to 4.00 inches. The Avon Tourist is a blackwall bias-ply tire in the same 550-16 fitment with a published maximum load of 992 pounds. Both fit the same 16-inch application, but they present the car very differently.

That means the Firestone-versus-Avon decision is less about changing sizes and more about balancing appearance with the supporting specs you want to see in the product details. A buyer who wants a whitewall look may gravitate toward Firestone, while someone aiming for a simpler blackwall presentation may prefer Avon. Before choosing, compare your wheel width and the visual style you want on the finished 1946 Mercedes-Benz.

For 1946 Mercedes-Benz tires in 550-16, published rim-width guidance appears at 3.25 to 4.00 inches on applicable products. The same size also uses a 16-inch rim diameter, which is the basic wheel diameter requirement for the 1946 Mercedes-Benz 170. That combination is the practical fitment checkpoint when evaluating whether an existing wheel is suitable for a reproduction bias-ply tire in this size.

Wheel width matters because even when the diameter is correct, an overly narrow or overly wide rim can affect how the tire seats and how the sidewall stands. If your 1946 Mercedes-Benz is wearing replacement wheels or wheels with an unclear history, measure the rim before committing to a tire. That small step helps avoid choosing a tire that is correct in size code but mismatched to the wheel itself.

The available 550-16 product descriptions for 1946 Mercedes-Benz fitment do not carry a tube-type or tubeless marker in the size line, so tube use should be confirmed against the specific tire and wheel combination you plan to run. With a 1946 passenger car and a traditional bias-ply fitment, many owners also evaluate the condition and design of the original wheel before deciding how the tire should be mounted.

That makes this a wheel-and-product question rather than something to assume from the size code alone. If your 1946 Mercedes-Benz still uses original-style wheels, inspect the rim condition, valve-stem area, and bead seat before mounting tires. Matching the mounting method to both the tire’s sidewall marking and the wheel’s condition is more important than relying on a blanket rule for every 550-16 application.

A 1946 Mercedes-Benz should be stored in a cool, dry, dark space away from direct sunlight, electric motors, furnaces, battery chargers, and other ozone-producing equipment that can accelerate sidewall aging. Because the 170 uses bias-ply tires, long static periods can encourage flat-spotting more readily than with many later radial designs. Clean floors, stable temperatures, and proper inflation help preserve both the tire shape and the sidewall finish.

If the car sits for extended periods, roll it occasionally to change the contact patch or support it in a way that reduces prolonged loading on one spot. Owners who maintain a show-quality 1946 Mercedes-Benz also watch for moisture and chemical exposure that can stain whitewalls or dry the rubber. Good storage habits do as much for the life of a collector tire as low annual mileage.

Tires on a 1946 Mercedes-Benz should be judged by age and condition more than by mileage, because collector cars often travel very little each year. A sensible routine is to begin evaluating them closely around the five- to seven-year range and to treat around ten years as a serious replacement point even if the tread still looks good. The DOT date code, along with visible condition, gives the clearest picture of a tire’s actual age.

That age-first approach is especially important on a postwar car that may spend long periods parked between drives. A 1946 Mercedes-Benz 170 can wear tires that appear lightly used while the rubber itself has hardened, cracked, or lost resilience over time. If the car is driven at road speeds, age-related deterioration is often a more important concern than how many miles were put on the tread.

Tires on a 1946 Mercedes-Benz should be inspected before every drive and again before any longer outing. Look for sidewall cracking, tread separation, cuts, bulges, irregular wear, and signs that the tire is losing pressure between uses. On a vintage bias-ply application, it is also smart to pay attention to valve-stem condition and to any change in how the car feels during the first few miles after storage.

That routine helps catch small problems before they become trip-ending failures on the road. A 1946 Mercedes-Benz often sees use in fair weather, club events, and occasional tours rather than daily commuting, so issues can develop slowly and go unnoticed. A quick inspection each time the car comes out of storage is one of the easiest ways to protect both the tires and the rest of the driving experience.

A 1946 Mercedes-Benz 170 would have been fitted in a period when bias-ply construction was the normal passenger-car standard, and the available replacement fitment here follows that same tradition with 550-16 bias-ply tires. That makes the basic size and construction type align well with the character of the car. Original-equipment branding could vary by market and supply conditions, so the key authenticity markers are the size, construction, and overall sidewall presentation.

For a restoration-minded owner, that means starting with 550-16 bias-ply before worrying about smaller cosmetic details. If you are preparing a 1946 Mercedes-Benz 170 for marque judging or a highly exact market-specific restoration, compare your chosen tire against period photos, factory literature, and Mercedes-Benz club resources. Those references can help settle whether blackwall or another presentation is the closest match for your car’s intended specification.

Correct tire fitment matters on a 1946 Mercedes-Benz because judges and knowledgeable enthusiasts notice whether the size, construction, and sidewall style suit the era of the car. A 550-16 bias-ply tire supports the proper postwar look of the 170, while an obviously modern construction or an overly stylized sidewall can change the car’s visual balance. Tire choice affects stance, sidewall profile, and the overall authenticity of the finished restoration.

That does not mean every event uses the same judging standard, but it does mean tires should be chosen as part of the restoration plan rather than as an afterthought. A 1946 Mercedes-Benz prepared for serious marque judging should be checked against event rules and club guidance, especially if you are debating blackwall versus whitewall presentation. Getting the tire details right often sharpens the whole car’s period impression.

For the 1946 Mercedes-Benz 170 in 550-16, the Excelsior option is a blackwall bias-ply tire, while the BFGoodrich offering is a 2.25-inch whitewall bias-ply tire. Both use the same basic size and fit the same 16-inch application, and both carry the traditional bias-ply character expected on a car of this age. The main distinction between them is how strongly the tire contributes to the finished visual style of the car.

That makes the choice especially important on a restoration where presentation matters as much as fitment. An owner preserving a restrained, workmanlike postwar Mercedes appearance may lean toward the blackwall Excelsior, while someone building a car around a whitewall visual theme may prefer the BFGoodrich. Either way, the size remains correct, so the decision is largely about authenticity goals and the look you want the 1946 Mercedes-Benz to project.

1946 Mercedes-Benz tires in this fitment are traditional bias-ply products, and safe highway use depends on choosing a tire in sound condition, maintaining correct inflation, and respecting both the tire’s design and the car’s own limits. One available 550-16 product carries an 80L marking, which corresponds to a 75 mph speed symbol. On a postwar 170, the tire’s marked capability is only part of the picture because the car’s brakes, suspension, steering, and overall age deserve equal attention.

For most owners, that means moderate, well-considered road use is more appropriate than treating a 1946 Mercedes-Benz like a modern highway car. A healthy vintage tire with the right pressure and no signs of age damage can be entirely suitable for touring and secondary-road driving, but speed and distance should always be matched to the condition of the whole vehicle. The tire should support the drive, not be asked to overcome broader mechanical limitations.

Inflation pressure for 1946 Mercedes-Benz tires should be set by the factory vehicle recommendation first, then cross-checked against the tire maker’s published limits for the specific product you choose. In the available 550-16 options, one Firestone version lists a maximum load of 840 pounds at 32 psi. That figure is a product rating reference, not a blanket instruction to run every 550-16 tire on every 1946 Mercedes-Benz at the same pressure.

The practical approach is to use the car’s original guidance for normal service and to make sure your chosen reproduction tire is operating within its own stated limits. Pressure can affect steering feel, ride quality, and tread wear quite noticeably on a bias-ply-equipped 1946 Mercedes-Benz 170. If the car has been restored with different wheel condition or loading than original, review the tire maker’s recommendations before putting miles on it.

Before a longer drive in a 1946 Mercedes-Benz, inspect each tire for cracks, cuts, bulges, embedded debris, uneven wear, and stable inflation, and check the spare with the same care. Look closely at the sidewalls, because age-related deterioration often appears there first on collector-car tires. A postwar car also deserves a broader pre-drive inspection that includes brakes, wheel fasteners, steering response, fluid levels, and general roadworthiness.

That full check matters because a 1946 Mercedes-Benz 170 is old enough that small issues can compound quickly once you are away from home. Tire condition is only one part of a reliable touring plan, but it is the one part in constant contact with the road. If anything about the tire shape, pressure retention, or sidewall condition looks questionable, address it before the trip rather than hoping it will settle in after a few miles.