1968 Mercury Wagons Tires

The 1968 Mercury Wagons came from an era when full-size family cars were expected to carry passengers, luggage, and highway miles with quiet confidence. Their long-roof design and substantial presence make tire choice especially important, because the right fit needs to support both the wagon’s stance and its intended road use. This application centers on one primary size, 855-15, in a bias-ply construction on a 15-inch rim. Within that size, the available choices focus on traditional narrow whitewall styling, and modern radial equivalents are also available for owners considering a different construction. The key is deciding whether period-style appearance or a radial alternative better suits the wagon’s wheels, restoration goals, and driving plans.

Which Tire Size Is Right for The 1968 Mercury Wagons

The 1968 Mercury Wagons use one primary tire size: 855-15 in a bias-ply construction on a 15-inch rim. The 1968 Mercury Wagons Base uses that same fitment, so the main decision is not between multiple original sizes, but between available whitewall presentations in the bias-ply size and the possibility of evaluating a modern radial equivalent.

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855-15Numeric bias-ply
Fit(s): Base
Construction: Bias PlyRim: 15 in

An 855-15 is a vintage numeric bias-ply size in which the 8.55 designation refers to nominal section width in inches, while the 15 identifies the wheel diameter. On a 1968 Mercury Wagons application, that means a traditional full-size bias-ply fitment with the period-style shape and construction many restoration-minded owners expect. Available choices in this size center on BFGoodrich Silvertown Classic Bias Ply tires with narrow whitewall treatments in different stripe widths. This size makes the most sense when the goal is to keep the wagon in its primary original-style sizing while choosing the sidewall presentation that best matches the vehicle’s character.

Explore 855-15 Tires

1968 Mercury Wagons Sub-Model Tires

Sub-model fitment is straightforward for the covered 1968 Mercury Wagons application. The Base model uses the same primary tire size, so the focus stays on construction choice, sidewall appearance, and confirming the wheel setup before moving to a radial alternative.

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1968 Mercury Wagons Base

The 1968 Mercury Wagons Base uses the same 855-15 bias-ply tire size as the core application. That keeps selection centered on period-style bias-ply whitewall choices or, if road-use priorities differ, a careful review of the available radial-equivalent sizes for the existing wheels.

Associated Tire Sizes

Bias-Ply to Radial Tire Conversion for the 1968 Mercury Wagons

The original 855-15 size has four radial-equivalent options to consider. Those include 215R15 as an 80-series metric radial, P225/75R15 as a 75-series P-metric radial, P235/70R15 as a 70-series P-metric radial, and 760R15 as a bias-look radial equivalent. Together, these choices span different radial sizing conventions, with the bias-look option offering a more traditional visual presentation. A 6-8 inch recommended rim-width range is associated with these equivalents, and wheel width, overall dimensions, and vehicle clearance should all be checked before making a change.

Modern Radial Equivalents
  • 215R15

    Equivalent 80-series Metric Radial (855-15)

  • P225/75R15

    Equivalent P-metric 75-series Radial (855-15)

  • P235/70R15

    Equivalent P-metric 70-series Radial (855-15)

  • 760R15

    Bias-look Radial Equivalent (855-15)

Important Considerations When Replacing Bias Ply With Radial
  • Compare overall diameter and section width carefully to ensure proper fit.
  • Verify recommended rim range (6-8 in) and load needs match your vehicle specifications.
  • Check fender clearance, steering clearance, and stance before installation.
  • Consider suspension condition and intended road use when choosing equivalents.

Important Fitment Notes

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:

  • Wheel modifications (wider rims, offset changes, aftermarket wheels)
  • 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.

Best 1968 Mercury Wagons Tires for Sale

Available 855-15 choices focus on BFGoodrich Silvertown Classic Bias Ply construction with narrow whitewall styling. The main product comparison is between whitewall widths within the same vintage-size, 15-inch bias-ply fitment.

Showing 2 of 2
Bias Ply

BFGoodrich 1.00 Inch Whitewall | 855-15

BFGoodrich - Silvertown Classic Bias Ply

SIDEWALLNarrow Whitewall
RIM DIAMETER15 in
RIM WIDTH6.00 - 6.50 in
WEIGHT26 lb
MAX LOAD1710@32 psi
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Bias Ply

BFGoodrich 5/8 Inch Whitewall | 855-15

BFGoodrich - Silvertown Classic Bias Ply

SIDEWALLNarrow Whitewall
RIM DIAMETER15 in
RIM WIDTH6.00 - 6.50 in
WEIGHT26 lb
MAX LOAD1710@32 psi
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Frequently Asked Questions

These FAQs focus on 1968 Mercury Wagons tire size, 15-inch rim fitment, bias-ply versus radial choices, whitewall selection, and the basic inspection steps worth taking before putting a collector-era wagon back on the road.

Tire Size & Fitment

What tire size fits a 1968 Mercury Wagons?

The primary tire size for a 1968 Mercury Wagons is 855-15. This is a numeric bias-ply size used on a 15-inch rim, and the covered Base sub-model uses that same fitment. For most owners, the core fitment question is simple because there is one original-style size to start from.

The next step is confirming that the wagon still has the correct 15-inch wheels and an appropriate wheel width for the tire being considered. If the vehicle has been changed over the years, verify the actual wheel setup before choosing between a bias-ply tire in 855-15 and one of the available radial-equivalent alternatives.

What size rim does a 1968 Mercury Wagons use?

The 1968 Mercury Wagons tire fitment centers on a 15-inch rim. That rim diameter matches the 855-15 primary tire size, where the final number in the size code identifies the wheel diameter rather than the overall tire height.

Rim diameter is only part of the fitment picture, so it is still worth checking the actual wheel width before purchasing tires. The available 855-15 bias-ply products are built around a 15-inch wheel, and radial equivalents should also be reviewed against wheel width, tire dimensions, and clearance rather than chosen on rim diameter alone.

Does the 1968 Mercury Wagons Base use the same tire size?

Yes. The 1968 Mercury Wagons Base uses the same 855-15 bias-ply tire size as the core 1968 Mercury Wagons application. That consistency simplifies original-size replacement because there is no split in primary tire sizing within the covered sub-model information.

Even with shared sizing, the real choice still comes down to tire style and construction. A buyer can stay with the traditional 855-15 bias-ply fitment and compare narrow whitewall presentations, or explore radial-equivalent options after confirming wheel width, overall tire proportions, and any changes that may have been made to the wagon’s wheels or suspension.

Bias-Ply & Radial Options

Is 855-15 a bias-ply or radial tire for the 1968 Mercury Wagons?

For a 1968 Mercury Wagons, 855-15 is the primary bias-ply tire size. In this application, it represents the vintage numeric sizing format and the traditional construction style associated with the wagon’s original-era fitment rather than a radial design.

That matters because choosing 855-15 keeps the vehicle in its original-style construction category, while moving to a radial means stepping into an equivalent size rather than the primary one. Owners comparing the two should look beyond the label and confirm wheel compatibility, overall tire dimensions, and the kind of driving the wagon is expected to do.

What radial tire sizes are equivalent to 855-15?

Radial equivalents for 855-15 include 215R15, P225/75R15, P235/70R15, and 760R15. Those choices cover an 80-series metric radial, a 75-series P-metric radial, a 70-series P-metric radial, and a bias-look radial equivalent for buyers who want a more traditional appearance.

Each of those sizes should be treated as an alternative to evaluate, not as an automatic interchange. The recommended rim-width range attached to these equivalents is 6-8 inches, and the wagon’s actual wheel width, fender clearance, steering clearance, and overall setup should all be reviewed before selecting one radial format over another.

Can I use a bias-look radial on a 1968 Mercury Wagons?

A bias-look radial equivalent is available for this application in size 760R15. That gives 1968 Mercury Wagons owners a radial-format option that aims to preserve more of the visual character associated with older tire styling than a modern-looking metric sidewall may provide.

Appearance is only one part of the decision, so the wheel and vehicle setup still need to be checked carefully before making the switch. A radial equivalent can change how the tire relates to the rim and available clearance, which is why wheel width, suspension condition, and space around the tire deserve attention before conversion.

Choosing the Right Tire

What should I consider when choosing a 855-15 tire for a 1968 Mercury Wagons?

Start with the correct primary size, which is 855-15, and confirm that the wagon still has the proper 15-inch wheel setup for that vintage bias-ply fitment. After that, the main comparisons are sidewall presentation, rim-width compatibility for the specific tire, and whether the vehicle is being kept in traditional bias-ply form.

Selection also depends on how the wagon will be used. A restoration-oriented vehicle may stay with the original-style construction, while a driver-focused car may lead the owner to review radial equivalents separately. Matching the tire to the vehicle’s appearance goals, wheel dimensions, and expected road use usually matters more than chasing unnecessary variation within the same size.

What sidewall styles are available for 1968 Mercury Wagons tires?

The available 855-15 products for a 1968 Mercury Wagons use narrow whitewall styling. Within that look, the visible difference is the whitewall width, with BFGoodrich options offered in both 1.00-inch and 5/8-inch whitewall presentations.

That choice is mainly about visual balance rather than fitment, since both options stay within the same primary size and tire series. A buyer trying to complement the wagon’s trim, paint, and overall restoration direction may prefer one stripe width over the other, but the wheel size and construction requirements remain the same either way.

What brands offer tires for the 1968 Mercury Wagons?

The available primary-size products for the 1968 Mercury Wagons come from BFGoodrich. In 855-15, those options are part of the Silvertown Classic Bias Ply line and focus on traditional bias-ply construction with narrow whitewall sidewall styling.

Because the brand spread is narrow in the primary fitment, the more useful comparison is between the product’s sidewall presentation and how closely the tire matches the wagon’s intended look. Owners considering a broader construction change can also compare the original-style BFGoodrich bias-ply offerings with the separate radial-equivalent sizes available for this application.

Restoration & Appearance

Which tire should I choose for a period-style 1968 Mercury Wagons?

For a period-style 1968 Mercury Wagons, the natural starting point is the primary 855-15 bias-ply size. That keeps the wagon in its original-era sizing format and construction type, which is often important when the goal is to preserve the vehicle’s traditional visual stance and overall presentation.

From there, the main appearance decision is the whitewall treatment rather than the size itself. Since exact originality can vary by vehicle history and restoration target, owners pursuing a highly specific result should compare the tire choice with period photos, marque references, or other Mercury-focused historical guidance before settling on a stripe width.

How does tire construction affect the appearance of a restored 1968 Mercury Wagons?

Tire construction influences more than ride and handling; it also affects how a restored 1968 Mercury Wagons looks at a glance. Staying with the 855-15 bias-ply fitment maintains the traditional vintage sizing language and sidewall character associated with the wagon’s era, while radial alternatives present a more modern format.

That difference becomes especially noticeable on a long-roof full-size car where the tire visually anchors a lot of sheet metal. Buyers who want a traditional appearance often begin with bias-ply or a bias-look radial, while those who prioritize road use may accept a more modern sidewall presentation after confirming the wheel and clearance details.

Fitment, Maintenance & Road Use

Can modifications affect tire fitment on a 1968 Mercury Wagons?

Yes. Even though the primary fitment is 855-15 on a 15-inch rim, changes such as aftermarket wheels, altered wheel width, suspension work, ride-height changes, or body modifications can all affect how a tire fits a 1968 Mercury Wagons. That becomes even more important when comparing radial-equivalent sizes.

A wagon that no longer has its original wheel and suspension setup should be measured before tire selection rather than relying on size name alone. Checking wheel width, wheel diameter, steering clearance, and the available space around the tire helps prevent fitment surprises and keeps the focus on what the vehicle can actually accommodate.

What should I inspect before driving a 1968 Mercury Wagons on new tires?

Before road use, inspect the wheels for correct diameter and condition, verify proper mounting, and make sure the tires hold air consistently. It is also wise to look over the brakes, steering, suspension, and alignment condition on a 1968 Mercury Wagons, especially if the car has been stored or driven infrequently.

A collector-era wagon can place real stress on old chassis components, so tire installation should be treated as part of a broader safety check rather than a stand-alone change. Clearance at full steering lock, visible sidewall condition, and stable tire pressure over time are all worth confirming before taking the vehicle on regular roads or longer trips.

How should 855-15 tires on a collector 1968 Mercury Wagons be maintained?

855-15 tires on a collector 1968 Mercury Wagons should be kept properly inflated, inspected regularly for cracking, cuts, bulges, uneven wear, and air loss, and protected from long exposure to heat, sunlight, and ozone sources during storage. Low-use collector vehicles still age their tires even when tread wear is minimal.

Routine maintenance also means checking the tires after long storage periods before returning the wagon to the road. Clean storage conditions, occasional movement to avoid prolonged flat spotting, and periodic review of overall tire condition help preserve both appearance and serviceability, whether the wagon remains on bias-ply tires or moves to a radial equivalent.