1986 Isuzu Trucks Tire Fitment Guide

1986 Isuzu Trucks vehicles use three sizes, split by model. The Pickup uses 195/75R14 or 215/75R14, both on 14-inch wheels, while the Trooper uses 225/75R15 on a 15-inch wheel. Rim width ranges are available from product coverage for all three sizes: 195/75R14 fits 5.00 to 7.00 inches where stated, 215/75R14 fits roughly 5.5 to 7.5 inches, and 225/75R15 fits 6.00 to 8.00 inches depending on the tire.

That means model identification comes first, and wheel diameter confirmation comes second. A Pickup owner still has to determine whether the truck takes the narrower 195 width or the wider 215 width, while a Trooper owner needs to stay with the 15-inch fitment unless the truck has been modified. Checking the existing sidewall and measuring the wheel before replacing tires is the cleanest way to avoid a mismatch.

On a 1986 Isuzu Trucks tire, 195/75R14 means a radial tire that is 195 millimeters wide, with a 75-series aspect ratio, built for a 14-inch wheel. The R identifies radial construction, which is the only construction used across all three fitments for this year and make. In this application, 195/75R14 belongs to the Pickup rather than the Trooper.

That code matters because each part affects fitment. The final 14 tells you the wheel diameter, so a 195/75R14 cannot be mounted on the Trooper's 15-inch wheel. The 195 width also distinguishes it from the Pickup's larger 215/75R14 option, which means two trucks with the same year and make may still need different Pickup tires depending on the wheel-and-size combination already on the vehicle.

No. 1986 Isuzu Trucks fitment is model-specific. The Pickup uses two possible 14-inch radial sizes, 195/75R14 and 215/75R14, while the Trooper uses a separate 15-inch radial size, 225/75R15. That split reflects the different roles of the two vehicles, with the Trooper carrying a larger wheel diameter than the compact Pickup.

For a buyer, that means year and make are only the starting point. If you have a Trooper, the 15-inch fitment narrows the choice quickly. If you have a Pickup, you still need to verify which 14-inch size is on the truck now or which size your wheel width supports. Looking only at 1986 Isuzu Trucks as a whole is not enough to choose correctly.

1986 Isuzu Trucks tires are available with both wide whitewall and narrow whitewall sidewall styles across the model range. The 195/75R14 Pickup size offers wide whitewall and narrow whitewall choices, the 215/75R14 Pickup size does the same, and the 225/75R15 Trooper size is also offered in both wide and narrow whitewall form. All of these are radial tires rather than period-style bias-ply constructions.

The practical choice is mostly visual. Narrow whitewalls tend to look more restrained and better suited to late-model classic trucks and SUVs, while wide whitewalls create a stronger custom or nostalgic appearance. Because 1986 sits well into the radial era, buyers who care about factory-era appearance should usually think first about whether a whitewall is appropriate for their truck's intended look, trim level, and restoration direction.

1986 Isuzu Trucks fitments are covered by several brands depending on size. The 195/75R14 Pickup size is available from Coker Classic, Tornel, and Maxxis. The 215/75R14 Pickup size is available from Coker Classic and American Classic. The 225/75R15 Trooper size is available from BFGoodrich, Coker Classic, and American Classic.

Brand choice is easiest once size is settled. After that, compare the sidewall look you want and the wheel width range your truck needs to accommodate. Because the brand mix changes by size, a Pickup owner choosing between 195/75R14 and 215/75R14 is also choosing between somewhat different product families, so it is smart to confirm the truck's existing fitment before narrowing the field by brand name alone.

For 1986 Isuzu Trucks applications where both appear, the main differences are sidewall treatment, load rating, weight, and approved rim-width range. In 215/75R14, Coker Classic Star Series appears in both wide whitewall and narrow whitewall versions at 1,764 pounds at 32 psi and about 26.4 pounds, while American Classic Radial appears as a narrow whitewall at 1,664 pounds at 35 psi and about 26 pounds. In 225/75R15, Coker Classic Star Series carries 2,094 pounds at 32 psi and about 28.7 pounds, while American Classic Radial carries 1,874 pounds at 35 psi and about 28 pounds.

Those differences do not automatically make one tire right for every truck. They mean you should compare the sidewall look you want, the wheel width your truck uses, and the load-and-pressure relationship that best suits your application. If appearance is driving the decision, sidewall width may settle it quickly. If wheel setup matters more, verify the approved rim-width range before choosing between the two series.

Approved rim width depends on tire size. For 1986 Isuzu Trucks Pickup tires in 195/75R14, supported rim widths run from 5.00 to 7.00 inches where stated, with one 195 radial also covering 5.00 to 6.50 inches. For 215/75R14, supported widths run from about 5.5 to 7.5 inches. For 1986 Isuzu Trucks Trooper tires in 225/75R15, approved widths range from 6.00 to 8.00 inches depending on the tire.

That matters because wheel diameter alone is not enough. A tire can have the correct 14-inch or 15-inch bead diameter and still be a poor match for a wheel that is too narrow or too wide. If the truck is wearing aftermarket wheels, measure the actual wheel width before choosing a tire, then stay within the approved range for the exact size and product you intend to use.

The available 1986 Isuzu Trucks tires are tubeless radial designs. Their size markings use standard passenger-metric and metric radial formats without tube-type markings, and the product families offered for 195/75R14, 215/75R14, and 225/75R15 are modern tubeless constructions. That fits the mid-1980s move toward tubeless radial service on factory-type wheels.

Even so, the wheel itself still matters. A tubeless tire should be mounted only on a wheel in sound condition, with clean bead seats and a proper valve stem. If the truck has older replacement wheels, corrosion, or past repairs around the bead area, have the wheel inspected before mounting. A tubeless tire can only perform as intended when the wheel is suitable for tubeless service.

A 1986 Isuzu Trucks should be stored in a cool, dry, dark space away from direct sunlight, standing water, battery chargers, electric motors, furnaces, and other ozone-producing equipment. Keep the tires inflated, clean off road grime, and avoid parking for months on hot concrete without movement. Radial tires generally tolerate storage better than older bias-ply designs, but they still age from heat, ozone, and long static loading.

For trucks that sit through a season, move the vehicle periodically or use stands if the storage plan is long-term and the suspension setup allows it. That helps reduce flat spotting and localized stress in the casing. If the truck is stored outdoors even part-time, use breathable covers and pay close attention to sidewall cracking, because ultraviolet exposure often ages collector tires faster than mileage does.

On a 1986 Isuzu Trucks, tire life should be judged more by age and condition than by miles alone. A collector or lightly used truck may wear out very little tread while the rubber still hardens over time. A sound rule is to begin close inspection and professional evaluation around the five- to seven-year mark, and to give serious replacement consideration as tires approach ten years from the DOT date code, even if they still look usable.

That approach is especially important for older trucks that spend long periods parked and then go on occasional longer drives. Sidewall cracking, tread separation, vibration, or repeated pressure loss are stronger warning signs than tread depth by itself. If the date code shows significant age, replacement is usually the smarter decision before a touring event or highway trip than trying to stretch one more season out of an old set.

Tires on a 1986 Isuzu Trucks should be inspected before every drive, and again more thoroughly before any longer outing. Check inflation pressure, visible sidewall cracking, cuts, bulges, uneven tread wear, embedded debris, and signs of aging around the bead and shoulder area. Because these are tubeless radial applications, valve stems and bead sealing condition should also be part of the inspection routine.

A quick walk-around catches problems early, while a seasonal inspection can reveal issues that develop slowly on a lightly used truck. If the vehicle has been sitting, watch for flat spotting or vibration during the first miles. Any persistent shimmy, repeated air loss, or unusual tread wear pattern deserves investigation before the truck goes back into regular use, since age-related tire issues often show up after storage rather than during constant operation.

A 1986 Isuzu Trucks Pickup would have been a radial-tire vehicle from the factory era, not a bias-ply application. For this year, the Pickup uses either 195/75R14 or 215/75R14, both metric radial sizes on 14-inch wheels. That aligns with the broader mid-1980s shift toward modern passenger-style radial sizing on compact trucks sold in the U.S.

If originality matters, start by confirming which of those two sizes belongs to your specific truck before worrying about brand or sidewall styling. Trim, market, and wheel-package differences can affect what was delivered new, so owners pursuing a judged restoration should compare the truck against original literature, surviving tire placards, and marque-community knowledge. Size and construction type are the first authenticity checkpoints; sidewall appearance comes after that.

Yes, correct tire fitment matters on a 1986 Isuzu Trucks if the truck is being judged for authenticity. Judges and knowledgeable enthusiasts will often notice whether the tire size matches the vehicle's original style of fitment, whether the construction type is era-appropriate, and whether the sidewall appearance suits the restoration goal. On a 1986 truck, a radial construction is consistent with the period, but the exact size and sidewall treatment still affect presentation.

That does not mean every whitewall or every brand choice is automatically wrong, but it does mean appearance should match the story the truck is telling. A stock restoration, a dealer-style presentation, and a custom period look can each justify different choices. If the truck is headed for formal judging, check event rules and consult Isuzu-focused hobby resources so the tire choice supports the class rather than distracting from it.

A 1986 Isuzu Trucks Trooper belongs to the radial era and uses a 225/75R15 radial fitment in this application. That larger 15-inch size separates the Trooper from the Pickup and suits the SUV's more substantial stance and utility-focused role. The important originality point is the size class and radial construction, not a guessed-at original brand name.

For a restoration-minded owner, that means keeping the Trooper on its proper 15-inch radial fitment is the first step toward an authentic look. After that, choose the sidewall style that best matches your intended finish, whether that is restrained and factory-like or more custom in appearance. If you want exact factory-delivery confirmation for a particular trim or market version, original brochures and marque specialists are the best next reference.

The 1986 Isuzu Trucks sizes covered here are all modern-style radial tires, which makes them suitable for normal road use when they are in good condition, correctly inflated, and matched to the proper wheel. No explicit speed-rating letters appear in these size markings, so the more important real-world limit is often the truck itself: age, suspension condition, steering wear, brakes, and overall maintenance matter as much as the tire on a mid-1980s Pickup or Trooper.

Safe highway use starts with condition, not with assuming every old truck is ready for modern traffic. Before any sustained higher-speed drive, verify tire age, pressure, wheel condition, and straight, vibration-free operation. A fresh radial on a sound wheel is a good foundation, but an older truck with worn shocks, loose steering parts, or neglected brakes can still feel unstable long before the tire reaches its own practical operating limits.

Inflation pressure for 1986 Isuzu Trucks tires should follow the vehicle recommendation first and the tire's rated load-and-pressure relationship second. Among the available products, 195/75R14 tires range from 1,399 pounds at 35 psi to 1,521 pounds at 32 psi, 215/75R14 tires range from 1,664 pounds at 35 psi to 1,764 pounds at 32 psi, and 225/75R15 tires range from 1,874 pounds at 35 psi to 2,094 pounds at 32 psi depending on the tire.

Those numbers are not a universal inflation setting for every truck. They show how each tire's maximum load relates to a stated pressure, but the correct operating pressure depends on vehicle weight distribution, suspension tuning, and the original manufacturer's recommendation. Use the owner's manual or tire placard as the baseline, then confirm that your chosen tire is being used within its own load-and-pressure limits rather than transferring figures from another size.

Before a longer drive in a 1986 Isuzu Trucks, inspect the tires for cracking, cuts, bulges, uneven wear, punctures, and proper cold inflation pressure. Check valve stems, verify the spare is usable and inflated, and make sure the wheel lug torque is correct. Since Pickup and Trooper models use different sizes and wheel diameters, confirm that the spare actually matches the vehicle you are driving rather than assuming any same-brand wheel will work.

A longer-trip check should also include the truck beyond the tires. Old coolant hoses, weak belts, tired shocks, loose steering linkage, and marginal brakes can turn a simple highway run into a recovery situation faster than tread wear will. Treat the tire inspection as one part of a full pre-trip routine, especially if the truck has been sitting, because age-related issues tend to appear all at once when an older vehicle returns to regular use.