1979 Toyota Tire Fitment Guide

1979 Toyota vehicles use thirteen distinct sizes across five model lines. Celica uses 185/70R14 and 175R14, Corolla uses 155R13, 6.15-13, 185/70R13, and 165R13, Corona uses 175R14, Cressida uses 185/70R14, and Pickup uses H78-15, HR78-15, 750-14, E78-14, 205/70R14, ER78-14, and 700-14. Rim diameters span 13, 14, and 15 inches, so fitment begins with wheel diameter before anything else.

That spread means year and make alone are not enough for a correct choice on a 1979 Toyota. A Corolla owner must first narrow the car to a 13-inch fitment family, while a Pickup owner may need to sort between 14-inch and 15-inch wheels and between bias-ply and radial construction. If your Toyota has changed hands, has aftermarket wheels, or has been restored over time, verify the actual wheel before choosing a tire size.

On a 1979 Toyota, 175R14 is an older euro-metric radial size. The 175 indicates a section width of about 175 millimeters, the R identifies radial construction, and the 14 is the wheel diameter in inches. In this older style of metric sizing, the aspect ratio is not printed, and the format is conventionally treated as an 80-series radial. On 1979 Toyota vehicles, this size applies to Celica and Corona.

That matters because 175R14 looks more period-correct for a late-1970s import than a modern low-profile size, while still retaining radial construction. It also keeps you from confusing the tire with 185/70R14, which is another 14-inch radial used elsewhere in the 1979 Toyota line but carries a different width and profile. If your car is a Celica, confirm which of the two 14-inch radial sizes belongs on your particular car before moving ahead.

No, 1979 Toyota models do not use one common tire size across the lineup. Celica and Cressida share 185/70R14, Celica and Corona share 175R14, Corolla stays with 13-inch fitments that include both radial and bias-ply choices, and Pickup uses its own mix of 14- and 15-inch truck-oriented sizes. The difference is not cosmetic; it affects wheel diameter, construction type, and how the tire code should be interpreted.

A buyer who only knows “1979 Toyota” can easily end up in the wrong part of the fitment tree, especially if shopping for a Pickup or Corolla. The safest approach is to identify the model first, then compare the tire size currently on the vehicle with the correct family for that model. That step matters even more on restored vehicles, where wheel swaps and owner preference can move a car or truck away from its original fitment style.

For a 1979 Toyota Corolla, 6.15-13 is the bias-ply choice, while 155R13, 165R13, and 185/70R13 are radial choices. The basic difference is construction rather than simply dimensions. Bias-ply tires preserve an older period look and driving character, while the radial options reflect the direction many late-1970s imports were moving toward for normal road use. The Corolla is unusual within the 1979 Toyota range because it spans both constructions on the same 13-inch platform.

Choose 6.15-13 if the goal is restoration authenticity and an earlier feel at the wheel. Choose one of the radial sizes if your priority is keeping the car in regular use with a more modern construction type. The remaining decision among radial sizes comes down to the exact fitment path for your Corolla and the look you want, since 155R13, 165R13, and 185/70R13 each present a different stance and sidewall proportion.

1979 Toyota tires span a surprisingly broad sidewall range depending on size. Passenger-car radial sizes such as 175R14, 155R13, and 165R13 are blackwall only, while 185/70R14 adds wide whitewall availability and 185/70R13 adds redline and wide whitewall alongside blackwall. Pickup sizes broaden the palette further with wide whitewall, narrow whitewall, blackwall, redline, dual-redline, and raised white letter options depending on the exact size.

That variety gives owners room to tune appearance without changing the model family of tire. For a late-1970s Japanese passenger car, blackwalls usually deliver the most natural roadgoing look, while whitewalls can suit more formal presentations such as a Cressida. On a 1979 Toyota Pickup, the sidewall choice can shift the truck's personality noticeably, from plain work-truck blackwall to a more custom or period-accessory look with whitewalls, redlines, or raised white letters.

1979 Toyota fitments are covered by BFGoodrich, Avon, Dunlop, Michelin, Vredestein, Coker Classic, STA, US Royal, and Maxxis, depending on size. The 14-inch passenger-car radials are strongest in Michelin, Vredestein, BFGoodrich, Avon, and Dunlop, while Corolla's 13-inch radials center on Michelin, Dunlop, Avon, and BFGoodrich. Pickup sizes add Coker Classic, STA, US Royal, Maxxis, and BFGoodrich across both bias-ply and radial constructions.

Brand choice is best made after size and construction are settled, not before. Some brands in this fitment range lean toward vintage styling cues such as whitewalls or redlines, while others stay with a more straightforward blackwall road look. If your goal is a particular visual theme for a 1979 Toyota, compare brands within the correct size first, then sort by sidewall treatment, speed rating, and whether the tire matches the way you plan to use the car or truck.

Rim width depends on the exact size used on your 1979 Toyota. Among sizes with published ranges, 185/70R14 fits roughly 4.5 to 6.5-inch rims, 175R14 fits about 4.5 to 6.0, 155R13 fits 4.0 to 5.5, 185/70R13 fits about 4.5 to 6.5, and 165R13 fits about 4.5 to 6.0. Pickup sizes vary more: H78-15 fits 5.5 to 7.0, 750-14 fits 5.0 to 5.5, E78-14 runs from about 4.5 to 7.0 depending on product, 205/70R14 spans 5.0 to 7.5, and 700-14 fits 5.0 to 5.5.

That range is why wheel measurement matters just as much as reading the size on the sidewall. A tire may share the same rim diameter as another option yet call for a different ideal rim-width window. Before choosing among multiple sizes for a 1979 Toyota model, measure the wheel you have or confirm its specification through the car or truck itself. That is especially important on Pickups and on any Toyota that may have aftermarket or swapped wheels.

Inner-tube requirements vary by size and sometimes by product on 1979 Toyota fitments. Several radial passenger-car sizes carry tubeless markings on some versions, including 185/70R14, 175R14, 155R13, and 165R13. E78-14 on the Pickup is a good example of why you should check closely, because one version is explicitly marked tubeless while others in the same size are not marked the same way. Bias-ply sizing alone does not answer the tube question by itself.

The practical takeaway is to match the tire's sidewall marking and the wheel type together rather than assuming all products in a given size are identical. If your 1979 Toyota still runs original-style wheels, inspect the wheel condition and valve-stem arrangement before deciding on tubes. Tube use can also affect what you inspect later, since valve stems, tube chafing, and air retention deserve extra attention on collector vehicles that see occasional road time.

Original 1979 Toyota wheels can only be used with tire sizes that share the same rim diameter and fall within an acceptable rim-width range for that wheel. A 13-inch Corolla wheel cannot take a 14-inch or 15-inch tire, and a 14-inch Celica or Corona wheel cannot take a 13-inch Corolla size. On the Pickup, some sizes are 14-inch and others are 15-inch, so the wheel diameter must be confirmed before any comparison between bias-ply and radial options.

Even within the same wheel diameter, do not assume every size works on every wheel. A 205/70R14, for example, can call for a wider rim range than a 700-14 or 750-14. That means an original wheel may accept one 14-inch Pickup size but not every other 14-inch alternative equally well. When changing size families on a 1979 Toyota, confirm both the wheel diameter and the actual rim width before treating the wheel as interchangeable.

A 1979 Toyota stores best in a cool, dry, dark space away from direct sunlight, electric motors, battery chargers, welders, and other ozone sources that accelerate rubber aging. Keep the tires clean, set them to a sensible storage pressure, and move the vehicle periodically or support it properly if it will sit for a long stretch. Bias-ply tires, such as 6.15-13 or several Pickup sizes, are more prone to flat-spotting during static storage than radial tires.

That difference matters if your 1979 Toyota is a seasonal collector car or a truck that only appears at events. A Corolla or Pickup on bias-ply tires may need more careful storage habits to avoid temporary shape change and sidewall stress. Covering the tires from light, avoiding damp floors, and giving the vehicle occasional movement will do more for long-term tire condition than simply parking it and forgetting it between driving seasons.

Tire age matters more than mileage on a 1979 Toyota because many surviving examples are lightly driven collector vehicles. A useful rule is to start evaluating tires closely once they reach about five to seven years of age and to treat around ten years as a serious replacement point regardless of tread depth. The date code on the sidewall is the most reliable way to judge age, not the appearance of unused tread.

That principle applies whether your 1979 Toyota wears a narrow Corolla radial, a Celica or Cressida touring size, or a Pickup bias-ply tire with deep-looking tread. Collector cars often age out tires before they wear them out. If the tires came with the vehicle, make age verification part of the first inspection, especially before trusting the car or truck on sustained road use where heat and speed put more stress into older rubber.

Tires on a 1979 Toyota should be inspected before every drive and again before any longer outing. Look for sidewall cracking, cuts, bulges, uneven wear, embedded debris, and pressure loss, and check that the tread area has not developed separation or damage from long periods of sitting. If the tire or wheel setup involves tube-type service, include the valve stem and air retention in that inspection routine as well.

Frequent inspection matters because an older Toyota may spend long periods parked, and age-related issues can appear even when tread depth still looks usable. A quick walkaround is often enough to catch a soft tire, fresh cracking, or a valve problem before it becomes a roadside issue. On a Pickup that sees load duty, or on a Corolla running bias-ply tires, that pre-drive habit is even more valuable because the tire may be working under very different conditions than a modern daily driver.

A 1979 Toyota Celica belongs to a period when radial construction was widely established on Japanese passenger cars, and the Celica fitments here are both radial 14-inch sizes: 185/70R14 and 175R14. That makes radial construction the correct starting point for a restoration-minded Celica owner. The exact size can vary within the model, so originality work should focus on identifying which of those two radial fitments belongs on the specific car rather than assuming one size covered every Celica.

For show work, confirm the tire size against surviving factory literature, original placards, or marque-club knowledge tied to your exact body style and market specification. Sidewall appearance also matters, since a blackwall may suit one presentation while a whitewall may suit another. If the goal is judged authenticity, use the correct radial size first and then confirm whether the event or club expects a particular sidewall treatment for your 1979 Toyota Celica.

Correct tire fitment matters on a 1979 Toyota because judges and knowledgeable enthusiasts often notice size, construction, and sidewall treatment immediately. A Corolla presented for authenticity may lose credibility if it wears a visibly modern-looking low-profile radial when a more era-appropriate size or even a bias-ply presentation is expected. On a Pickup, a whitewall or redline treatment can change the visual message just as much as the construction type itself.

The closer the event leans toward stock restoration, the more important those details become. Start by matching the correct model and wheel diameter, then consider whether the vehicle should wear a blackwall, whitewall, or another period-style sidewall for the way it is being shown. Marque clubs and event rule books are the best final check, because a 1979 Toyota built for local enjoyment may have more leeway than one prepared for strict concours judging.

The 1979 Toyota Pickup sits right in the era where both older and newer sizing systems were in circulation, which is why its fitments include bias-ply and radial options in 14-inch and 15-inch forms. H78-15, 750-14, E78-14, and 700-14 are bias-ply truck-era sizes, while HR78-15, ER78-14, and 205/70R14 are radial alternatives. That means originality depends heavily on the exact truck and how it was equipped rather than on one universal answer for all 1979 Toyota Pickups.

A restoration should begin by identifying the wheel diameter on the truck and then matching the size family that belongs to that configuration. If your goal is a stock work-truck look, an older alphanumeric or numeric bias-ply fitment may be the right visual direction. If the truck has a later-period appearance or a known radial fitment path, one of the radial sizes may be more appropriate. Marque-specific research is especially worthwhile on pickups because period owner modifications were common.

1979 Toyota tires can be suitable for highway driving when the size, condition, inflation, and construction match the vehicle and the way it is used. Among the radial passenger-car sizes, H-rated examples carry a 130 mph ceiling and V-rated examples reach 149 mph, while one 205/70R14 Pickup option appears in S rating at 112 mph. Those speed capabilities generally exceed normal U.S. highway speeds, but the actual safety margin still depends on age, condition, and the Toyota's own brakes, suspension, and mechanical condition.

Construction choice still affects the driving experience even when the speed rating is adequate. A radial 1979 Toyota typically feels more familiar to modern drivers on sustained road use, while a bias-ply setup asks for more respect for the vehicle's vintage manners. Before taking any 1979 Toyota on the highway, evaluate the full package: tire age, inflation, wheel condition, alignment, and the health of the rest of the chassis rather than relying on a size code alone.

Inflation pressure on a 1979 Toyota should start with the vehicle's factory recommendation, then be checked against the tire's own rated load-and-pressure information for the exact size you are using. Several sizes include maximum load figures such as 1,201 pounds at 35 psi for some 185/70R14 tires, 1,235 pounds at 51 psi for one 175R14, 1,135 pounds at 35 psi for some 185/70R13 tires, 1,770 pounds at 32 psi for H78-15, and 1,433 pounds at 35 psi for some 205/70R14 tires. Those figures are not a universal running-pressure recommendation.

The important point is not to transfer a pressure figure from one size to another or from a reproduction bias-ply to a radial. A Corolla on 155R13, for example, should not be treated the same as a Pickup on H78-15 simply because both are 1979 Toyotas. Use the owner's manual or placard as the baseline, then confirm that the tire is being used within the manufacturer's limits for load and pressure on the wheel actually fitted to the vehicle.

Before a longer drive in a 1979 Toyota, inspect all four tires and the spare for cracks, cuts, bulges, punctures, uneven wear, and proper inflation. Check the valve stems, and if the setup is tube-type or may use tubes, pay close attention to air retention and stem condition. A longer run also justifies looking at wheel hardware, brake operation, steering play, and whether the car or truck has been sitting long enough for the tires to develop flat spots.

That pre-drive routine is especially important on older Toyotas because the tire is only one part of a vintage mechanical system. A Celica or Cressida heading onto faster roads benefits from a careful pressure and age check, while a Pickup should also be assessed with its intended load in mind. If anything about the tire condition seems questionable, solve that issue before the trip rather than counting on tread depth alone to tell the whole story.