The 1947 De Soto 6 Custom arrived as American automakers were returning to civilian production, and its broad postwar sedan styling makes it a distinctive choice for collectors who appreciate immediate prewar carryover design with fresh postwar appeal. Tire selection on this car stays straightforward because the 1947 De Soto 6 Custom uses a 6.50-15 bias-ply tire on a 15-inch rim. That keeps the decision centered on choosing a period-style replacement that matches the car’s character rather than sorting through multiple primary fitments. For a restoration-minded owner, appearance, construction choice, and careful wheel confirmation all matter before the car goes back on the road.
Which Tire Size Is Right for The 1947 De Soto 6 Custom
The 1947 De Soto 6 Custom uses one primary tire size: 6.50-15. It is a bias-ply fitment on a 15-inch rim, and the covered Base sub-model uses that same size, so the main decision is choosing the right tire style for the car’s appearance and intended road use while confirming that the wheels still match the original diameter and width.
In the 6.50-15 size, the 6.50 refers to the nominal section width in inches and the 15 identifies the rim diameter. This is a traditional numeric bias-ply format, which suits the character and driving feel expected from a late-1940s American passenger car like the 1947 De Soto 6 Custom. Buyers looking at this size are usually balancing period-style appearance with practical road use, especially on a restoration or well-kept driver. The key is to confirm that the car still has the proper 15-inch wheel setup before selecting a tire in this vintage fitment.
Fitment is simple across the covered 1947 De Soto 6 Custom lineup because the listed sub-model shares the same primary tire size. Checking the exact sub-model still helps confirm that the car has not been altered with different wheels over the years.
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1947 De Soto 6 Custom Base
The 1947 De Soto 6 Custom Base uses the same 6.50-15 bias-ply tire fitment as the overall model line. That makes tire selection more about choosing a traditional replacement style and confirming the existing wheel setup than sorting through multiple size options.
The tire sizes listed on this page assume factory-standard vehicle configuration. The following modifications may affect tire fitment and are not reflected in this guide:
Suspension changes (lowering, lift kits, spring replacements)
Body alterations (fender modifications, custom bodywork)
If your vehicle has been modified from factory specifications, verify tire clearance before purchase.
Frequently Asked Questions
These 1947 De Soto 6 Custom tire FAQs focus on the 6.50-15 fitment, 15-inch wheel compatibility, bias-ply construction, restoration-minded tire choice, and the checks that matter before putting a collector-era De Soto back into regular road use.
Tire Size & Fitment
What tire size fits a 1947 De Soto 6 Custom?
The 1947 De Soto 6 Custom uses a 6.50-15 tire size. This is a bias-ply fitment and it mounts on a 15-inch rim, which matches the vintage tire sizing and construction expected on a late-1940s full-size American passenger car.
That makes size selection fairly direct, but the car should still be checked carefully before replacement. A De Soto that has been modified over the years may have different wheels than expected, so confirming the wheel diameter and overall setup first helps avoid choosing a tire that matches the original size code but not the car’s current hardware.
What size rim does a 1947 De Soto 6 Custom use?
The 1947 De Soto 6 Custom uses a 15-inch rim with its 6.50-15 tire fitment. In this size, the final number in the code identifies the wheel diameter, so the tire is built to mount on a 15-inch wheel rather than a different vintage rim size.
Wheel diameter is one of the first things to confirm on any collector car, especially one that may have changed hands several times. Measuring the wheel and checking its condition, width, and bead-seat integrity helps make sure a 15-inch tire is being matched to the right wheel and not simply to an old assumption about the car.
Does the 1947 De Soto 6 Custom Base use the same tire size?
Yes. The 1947 De Soto 6 Custom Base uses the same 6.50-15 bias-ply tire size as the overall model fitment shown for the 1947 De Soto 6 Custom. That keeps the replacement process simpler than on vehicles where trim level or configuration changes the tire size.
Even with shared fitment, the actual car should still be inspected before new tires go on. A previous owner may have changed wheels, suspension parts, or ride height, and those changes can affect how a vintage-size tire sits and clears the body even when the size itself is correct for the Base model.
Choosing the Right Tire
What should I consider when choosing a 6.50-15 tire for a 1947 De Soto 6 Custom?
Start with the correct primary fitment, which is a 6.50-15 bias-ply tire on a 15-inch rim. From there, the real decision is whether the tire suits the kind of De Soto you are keeping, whether that means a restoration-oriented car, a preserved original-style driver, or a vehicle that sees occasional road use.
Construction style and overall presentation matter as much as the size code on a car of this era. A buyer should also confirm that the wheel setup is still appropriate for the tire, then consider how the car will be used, how closely the appearance should follow a period-style look, and whether all four tires should match in age and type.
How do I choose between the available 6.50-15 tires for a 1947 De Soto 6 Custom?
The first filter is simple: the tire needs to be a true 6.50-15 fitment for the 1947 De Soto 6 Custom. After that, comparison usually comes down to how closely the tire matches the car’s intended presentation, whether the owner wants a more traditional visual look, and how the car will be driven.
A De Soto used mainly for shows and preservation may call for a different choice than one that is exercised regularly on secondary roads. Looking at construction style, wheel compatibility, and overall appearance as a package helps narrow the decision without drifting away from the correct vintage size for the car.
What rim-fitment details should I compare when choosing 1947 De Soto 6 Custom tires?
The main rim detail is diameter, and the 1947 De Soto 6 Custom uses a 15-inch wheel with its 6.50-15 tire size. The tire and wheel must match at the bead seat, so confirming that diameter is essential before any vintage tire is mounted.
Wheel width and condition also deserve attention, especially on older steel wheels that may have seen decades of use. Corrosion, dents, past repairs, or non-original wheels can all affect how a tire mounts and runs, so a careful wheel inspection is just as important as choosing the correct size code.
Restoration & Appearance
Which tire should I choose for a period-style 1947 De Soto 6 Custom?
A period-style approach starts with the correct primary fitment, which is a 6.50-15 bias-ply tire. That keeps the 1947 De Soto 6 Custom aligned with the type of sizing and construction associated with late-1940s American passenger cars rather than giving it a noticeably more modern tire presentation.
Appearance goals matter on a car like this because tire shape and construction influence the overall stance as much as the body and trim do. Owners pursuing close historical accuracy should compare the tire choice against marque references, surviving examples, and restoration guidance so the finished car reflects the look they want.
Does correct tire fitment matter for a 1947 De Soto 6 Custom restoration?
Yes, correct tire fitment matters because the wrong size or an obviously modern-looking tire can change the stance and visual balance of a 1947 De Soto 6 Custom. The proper 6.50-15 bias-ply fitment supports a restoration-minded presentation that stays in step with the car’s era.
Fitment also affects more than appearance alone. Wheel diameter, tire construction, and overall proportion influence how the car sits and how natural it looks from the fender opening to the ground, so restoration work benefits from treating tires as a visible finishing detail rather than an afterthought.
Fitment, Maintenance & Road Use
Can modifications affect tire fitment on a 1947 De Soto 6 Custom?
Yes. A 1947 De Soto 6 Custom may have started with a 6.50-15 bias-ply tire on a 15-inch rim, but aftermarket wheels, suspension changes, brake conversions, or body work can all alter the space and wheel dimensions available for that original fitment.
A car that has been lowered, lifted, or rebuilt with different wheel offset may need closer inspection before any tire is chosen. Checking wheel diameter, wheel width, steering clearance, and fender clearance helps confirm whether the existing setup still supports the original-size tire without rubbing or other unwanted fitment issues.
What should I inspect before driving a 1947 De Soto 6 Custom on new tires?
Before road use, inspect the wheels, valve stems, lug hardware, and overall tire installation, then verify that all four tires are properly inflated and seated. On a collector-era car like the 1947 De Soto 6 Custom, it also makes sense to look over steering and suspension components before expecting the tires to perform normally.
Fresh tires cannot compensate for worn mechanical parts or neglected wheels. A careful pre-drive check should include sidewall condition, visible cuts or bulges, signs of air loss, and any interference at full steering lock, especially if the car has sat for long periods or recently returned to service after restoration.
How should 6.50-15 tires on a collector 1947 De Soto 6 Custom be maintained?
Collector-car tires should be kept clean, properly inflated, and inspected regularly even when the car is driven only occasionally. On a 1947 De Soto 6 Custom, 6.50-15 tires deserve routine checks for cracking, flat spotting, tread wear, and any visible damage that may appear while the car is in storage.
Long periods of inactivity can be as hard on vintage-style tires as regular use, so storage conditions matter. Keeping the car away from prolonged heat, direct sunlight, excess moisture, and ozone sources helps preserve tire condition, and periodic movement of the vehicle can reduce stress from leaving the same contact patch loaded for too long.
