1981 Plymouth Vans Tire Fitment Guide

1981 Plymouth Vans use five sizes across three models. The PB150 uses 205/75R15 and 225/75R15, the PB250 uses 225/75R15 and 235/75R15, and the PB350 uses 235/75R15, 800-16.5, and 875-16.5. The 205, 225, and 235 metric radials all mount on 15-inch wheels, while the 800-16.5 and 875-16.5 bias-ply truck tires mount on 16.5-inch wheels. Where rim-width guidance is available, 205/75R15 works with 5.50 to 7.50 inches, 225/75R15 with roughly 6.00 to 8.00 inches, 235/75R15 with about 6.00 to 8.50 inches, and 800-16.5 with 6.00 to 6.50 inches.

That means the first checkpoint is always the model, and the second is the wheel diameter actually on the van. A PB350 owner especially needs to confirm whether the van carries 15-inch wheels for the radial 235/75R15 or 16.5-inch truck wheels for the 800-16.5 or 875-16.5. Once those two points are confirmed, the remaining choice is usually sidewall style and tire character rather than broad fitment guesswork.

On a 1981 Plymouth Vans tire, 205/75R15 is a metric radial size. The 205 is the nominal section width in millimeters, 75 is the aspect ratio, the R means radial construction, and 15 is the wheel diameter in inches. Within this year and make, that size belongs to the PB150. It appears in classic-style radial choices with wide whitewall, narrow whitewall, and goldline sidewalls.

For a PB150 owner, the practical meaning is that this is the narrower of the two 15-inch radial sizes used in the light-duty van. It can be a good fit when the van already wears wheels suited to that width range and when the goal is a tidy, less bulky appearance. It should not be confused with the heavier PB350 truck sizes, because those use a completely different 16.5-inch wheel family.

On a 1981 Plymouth Vans tire, 800-16.5 is a numeric bias-ply truck size. The 8.00 figure is the nominal section width, the dash format signals the older numeric sizing system, and the 16.5 is the wheel diameter in inches. In this year and make, 800-16.5 is used only on the PB350. It is offered as a blackwall commercial-style tire rather than as a whitewall or passenger-car radial.

That makes it a very different choice from a 205/75R15, 225/75R15, or 235/75R15 radial. A PB350 with 16.5-inch wheels needs you to stay within the 16.5-inch family, and that starts by confirming the wheel itself before comparing 800-16.5 with 875-16.5. If the van is being kept in an original heavy-duty look, this numeric bias-ply format is also more in character with commercial van service than a passenger-style radial.

1981 Plymouth Vans tires cover a wide span of sidewall styles depending on size. The 205/75R15 comes in wide whitewall, narrow whitewall, and goldline versions. The 225/75R15 offers wide whitewall and narrow whitewall choices, while the 235/75R15 adds RWL alongside wide and narrow whitewalls. The 800-16.5 and 875-16.5 truck tires stay with blackwall construction, which fits the commercial character of the PB350's heavy-duty wheel options.

For an owner choosing by appearance, the whitewall and goldline radials lean toward a more passenger-oriented custom or restored look, especially on PB150 and PB250 vans. The RWL 235/75R15 has a more utilitarian, later-truck flavor, and the blackwall 16.5-inch tires suit a work-van or original heavy-duty presentation. Matching the sidewall style to the way the van is being restored is often just as important visually as choosing the right section width.

1981 Plymouth Vans are covered by BFGoodrich, Tornel, American Classic, Coker Classic, Maxxis, and STA. The 205/75R15 is available from BFGoodrich, Tornel, and American Classic. The 225/75R15 comes from BFGoodrich, Coker Classic, and American Classic. The 235/75R15 includes BFGoodrich, American Classic, Maxxis, and Coker Classic, while both 800-16.5 and 875-16.5 are covered by STA.

That brand mix gives the lighter 15-inch van sizes a stronger emphasis on classic passenger styling, especially where whitewalls and goldlines are concerned. The 16.5-inch PB350 sizes are more specialized and stay focused on truck-style bias-ply construction. If your decision starts with period appearance, begin by narrowing sidewall style and wheel diameter first, then compare brands inside that lane instead of jumping between passenger radial and heavy-duty truck bias-ply options.

For the 1981 Plymouth Vans PB350 in 800-16.5, STA offers both Super Transport and Traxion. Both are bias-ply blackwall truck tires for 16.5-inch wheels, but they differ in series and weight, with Super Transport at 33 pounds and Traxion at 31 pounds. Super Transport also carries a published load figure of 2045 pounds at 60 psi, while Traxion is presented more as an alternate commercial-style line in the same size.

The practical difference is less about one being universally better and more about choosing the tread family and service character that matches your van's use. A PB350 owner restoring a heavy-duty commercial look may compare these two within the same wheel and size framework, while a van already converted to 15-inch wheels would leave both behind and move to 235/75R15 radial options. Keeping those use cases separate prevents expensive wheel-size mistakes.

Rim-width guidance for 1981 Plymouth Vans varies by size. The 205/75R15 works on 5.50 to 7.50-inch rims, the 225/75R15 on roughly 6.00 to 8.00-inch rims, and the 235/75R15 on about 6.00 to 8.50 inches depending on the specific tire. The 800-16.5 is paired with a narrower 6.00 to 6.50-inch rim range. The 875-16.5 products here confirm the 16.5-inch wheel diameter, but rim-width guidance should be confirmed against the exact tire selected.

That range overlap is useful, but it should not be treated as permission to mount any size on any wheel. The best approach is to confirm the actual wheel width on the van, then compare it to the chosen tire's approved range before mounting. This matters most on PB350 vans, where owners may be moving between truck-style 16.5-inch equipment and 15-inch radial setups that belong to an entirely different wheel family.

The 1981 Plymouth Vans radial sizes shown here do not carry tube-type markings, and the 15-inch 205/75R15, 225/75R15, and 235/75R15 choices are generally treated as tubeless-style radial fitments. The 800-16.5 and 875-16.5 bias-ply truck sizes also do not carry TT or TL markings in the size descriptions here, so tube use should be confirmed against the exact tire's sidewall marking and the condition and design of the wheel itself.

Wheel condition plays a major role in this decision, especially on older commercial van wheels that may have seen years of service. If a rim is pitted, damaged, or originally intended for tube use, that can change the safest setup even when the tire itself appears straightforward. Checking the tire's sidewall marking and having the wheel evaluated before mounting is more reliable than assuming all vintage van wheels are handled the same way.

A 1981 Plymouth Vans should be stored away from direct sunlight, standing moisture, and ozone sources such as electric motors, battery chargers, and welders. Keeping the tires clean, properly inflated, and parked on a dry surface helps preserve the casing. If the van sits for long periods, moving it occasionally can reduce flat-spotting, and that matters even more with the PB350's bias-ply truck tires, which tend to take a set more readily during static storage than radials.

Long-term storage works best when tire care is part of the van's broader preservation routine. If the vehicle will be parked for a season or longer, some owners use stands to reduce load on the tires and suspension, while others roll the van periodically to change the contact patch. Whatever method you use, keeping the tires out of heat and ozone usually does more for longevity than any dressing or cosmetic treatment.

Tire life on a 1981 Plymouth Vans is usually judged more by age than by miles, because collector and hobby-use vans often spend more time parked than driven. A sensible rule is to begin evaluating tires closely once they reach the five- to seven-year range and to treat about ten years as the point where replacement deserves serious consideration, regardless of remaining tread. The DOT date code on the tire tells you when the casing was built.

That age-based approach is especially important on vintage vans because low annual mileage can hide deterioration. A tire can look acceptable from a distance and still have hardening rubber, sidewall cracking, or internal age issues that affect road manners. If the van has mixed-age tires, replacing by date rather than trying to use up the oldest one usually gives more predictable handling and braking on a vehicle that already carries older suspension and steering design.

Tires on a 1981 Plymouth Vans deserve a quick inspection before every drive and a more careful check before any extended trip. Look for sidewall cracking, cuts, bulges, uneven wear, embedded debris, and pressure loss. On vans using truck-style bias-ply sizes or older wheels, inspect valve stems carefully as well, because wheel age and service use can be just as important as tread depth in determining whether the setup is ready for the road.

A van that only comes out for occasional cruises can actually need closer inspection than a regularly driven vehicle, because age-related problems often appear while it is parked. Checking the spare at the same time is smart, especially on a long-wheelbase or heavy-duty van where roadside replacement options may be limited. Catching a cracked sidewall or weak stem in the garage is much easier than dealing with it on the shoulder of the highway.

For a 1981 Plymouth Vans PB150, the year itself places the van in a period when radial tires were firmly established in mainstream American road use, and the PB150's size range here stays entirely in 15-inch radial fitment. That makes a radial the natural starting point for an owner seeking a broadly era-appropriate setup. The specific sidewall treatment could still vary depending on how the van was ordered and the image the owner wants to recreate.

For restoration work, treat the tire size first and the cosmetic sidewall second. A whitewall, goldline, or plainer touring-style radial can each change the van's look dramatically without changing the basic 15-inch radial architecture. If you are aiming for highly specific delivery, passenger, or regional presentation details, a Mopar van club or marque specialist is the right place to confirm what was most appropriate for your exact build and market.

Correct tire fitment does matter when showing a 1981 Plymouth Vans, especially if the event judges for authenticity rather than general presentation. Size, construction type, wheel diameter, and sidewall style all affect whether the van looks appropriate for its model and era. A PB350 wearing a flashy passenger-style whitewall on a commercial 16.5-inch truck setup, or a model shown with the wrong wheel diameter entirely, can look out of character even to non-specialist observers.

For many judged vehicles, authenticity is really about internal consistency. A custom van can justify a very different tire look than a fleet-style restoration, but the tire still needs to suit the wheel and the story the vehicle is telling. Before finalizing a show setup, compare your planned size and sidewall style with period photos, factory literature, and the standards used by the club or event where the van will be judged.

For 1981 Plymouth Vans in shared sizes such as 205/75R15 and 225/75R15, BFGoodrich Silvertown Radial and American Classic Radial overlap closely in construction and load rating but differ in presentation. In 205/75R15, BFGoodrich offers wide whitewall and goldline versions, while American Classic offers a narrow whitewall. In 225/75R15, BFGoodrich carries a wide whitewall and American Classic a narrow whitewall, with both families remaining radial 15-inch tires suited to classic applications.

That means the choice often comes down to visual style more than a dramatic mechanical difference. If the van is being restored with a fuller traditional whitewall look, the BFGoodrich approach may fit the theme better; if a cleaner, less prominent stripe suits the project, American Classic points in that direction. On a van built for judged originality, that sidewall presentation can matter just as much as selecting the correct underlying size.

1981 Plymouth Vans tires can be appropriate for highway driving when the tire is fresh, correctly fitted, and used within its construction and speed limits. The clearest published speed rating here appears on the BFGoodrich 235/75R15 All-Terrain at S, which carries a 112 mph ceiling. The other classic radial and bias-ply offerings should still be treated according to their own sidewall markings and intended use, with special respect for the different feel and response of truck-style bias-ply tires on a heavy van.

In real use, the van's own age, brakes, steering, suspension, and loading practice usually matter more than chasing theoretical top-speed capability. A well-sorted PB150 or PB250 on fresh radials will generally feel different from a PB350 on 16.5-inch bias-ply truck tires, and that difference should guide your driving expectations. Smooth steering inputs, conservative cruising speeds, and proper pressure are part of safe operation on any older full-size van.

Inflation pressure for 1981 Plymouth Vans depends on the exact tire size and tire line. Published maximum load and pressure figures include 205/75R15 at 1598 pounds at 35 psi, 225/75R15 at either 1874 pounds at 35 psi or 2094 pounds at 32 psi depending on tire, 235/75R15 at 1985 pounds at 50 psi, 2028 pounds at 35 psi, or 2271 pounds at 32 psi depending on tire, and 800-16.5 at 2045 pounds at 60 psi. Those figures are tire ratings, not blanket inflation instructions for every van.

Use the van's factory literature as the starting point for application pressure, then compare that with the tire manufacturer's guidance for the exact product you choose. The right operating pressure depends on load, wheel, and tire construction, so a number from one 235/75R15 should not automatically be copied to another 235/75R15, much less transferred to a different size. Getting this right affects wear, handling, and braking more than most owners realize.

Before a longer drive in a 1981 Plymouth Vans, inspect all tires for cracking, cuts, bulges, irregular wear, and proper inflation. Check that the spare is usable, that valve stems are sound, and that wheel hardware is secure. On a PB350 with heavy-duty wheels and truck tires, give extra attention to wheel condition and the age of the tires themselves, because older work-van equipment can hide fatigue that does not show up in casual local driving.

Tires are only one part of the travel checklist on a van of this age, but they are one of the most visible and easiest to evaluate before departure. A short test drive after pressure adjustment can also reveal pull, shake, or heat buildup before the trip starts. Pair that with a quick check of brakes, fluids, belts, and lights, and the van is much more likely to behave predictably once it is fully loaded and out on the road.