1974 Mazda Tire Fitment Guide

1974 Mazda vehicles use eight different sizes across five model lines. The 808 uses 155R13 or 6.15-13, the B1600 and 1800 use 6.00-14, the RX-2 uses 165R13 or 600-13, the RX-3 uses 155R13 or 560-13, and the RX-4 uses 195/70R13 or BR70-13. Most passenger-car applications are built around 13-inch wheels, while the compact pickup uses a 14-inch wheel. Rim-width guidance is available for 155R13 at 4.00 to 5.50 inches, 165R13 at 4.50 to 6.00, 600-13 at 4.00 to 4.50, 560-13 at 3.50 to 4.50 depending on brand, and 195/70R13 at 5.00 to 6.50.

That means a 1974 Mazda owner should identify the exact model before doing anything else. Even when two sizes share the same 13-inch rim diameter, they are not interchangeable across the entire Mazda lineup, and the construction type can change the character of the car as much as the size itself. Once the model is confirmed, compare the wheel diameter on the car, then match the tire to the intended use, whether that is restoration presentation, weekend driving, or a more road-oriented radial setup.

On a 1974 Mazda, 6.00-14 is a traditional numeric bias-ply size. The first number is the nominal section width in inches, while the final number is the rim diameter, so this tire fits a 14-inch wheel. In the 1974 Mazda range, 6.00-14 belongs to the B1600 and 1800 pickup models rather than the passenger cars, which mostly stay with 13-inch fitments.

That old-style numeric format is easy to misread if you are used to modern metric sizing, because it does not spell out an aspect ratio or use the radial R in the code. For a truck owner, the practical takeaway is simple: confirm that your wheel is the original 14-inch truck fitment before choosing a tire. If your Mazda is an 808 or an RX model, this is not the size family you should be shopping for.

No, 1974 Mazda models do not share one common tire size. The year includes compact sedans, rotary cars, and small pickups, and each follows its own fitment path. Even among the 13-inch passenger cars, the RX-2, RX-3, RX-4, and 808 do not all use the same code, and some pair a numeric bias-ply option with a separate radial option rather than one universal replacement size.

That matters because a year-and-make search is only the first step for this Mazda lineup. If you own an RX-4, for example, you are looking at radial sizing unique to that model, while a B1600 or 1800 owner needs to focus on 14-inch truck fitment. The best approach is to verify the model badge, compare the existing wheel diameter, and then decide whether you want a period-style construction or a radial driving experience where both routes exist.

For a 1974 Mazda RX-2, the choice between 165R13 and 600-13 is mainly a construction and presentation decision. 165R13 is a radial metric size available in Blackwall form from Michelin and Dunlop, while 600-13 is a numeric bias-ply available from BFGoodrich with Narrow Whitewall or Wide Whitewall styling. Both are 13-inch fitments for the RX-2, but they represent two distinctly different eras of tire design.

Owners restoring an RX-2 with a stronger focus on original 1970s appearance often gravitate toward the bias-ply route, especially when whitewall detail matters. Owners who plan to drive the car regularly and want a more modern radial feel often lean toward the 165R13. The key is to make that decision intentionally rather than mixing visual and functional goals, because the tire changes both the stance and the driving character of the car.

Sidewall style varies noticeably across the 1974 Mazda size range. The radial 155R13 and 165R13 options come in Blackwall form, while the bias-ply 600-13 and 560-13 options are available with Narrow Whitewall and Wide Whitewall treatments. The RX-4's 195/70R13 radial appears with a Narrow Whitewall, giving that larger rotary sedan a different visual character from the smaller Blackwall metric radials.

Choosing sidewall style is partly about period correctness and partly about the look you want the car to carry. A compact Mazda with a Blackwall radial reads more like a late-1970s road car, while a whitewall bias-ply creates a more traditional restoration presentation. Because sidewall styling can change the whole personality of a small Japanese classic, it is worth deciding on appearance goals before narrowing the selection to a specific tire series.

1974 Mazda tire coverage includes Michelin, Dunlop, BFGoodrich, and Firestone, depending on size. Michelin and Dunlop cover the 155R13 and 165R13 radial applications, BFGoodrich covers the 600-13 bias-ply RX-2 size and the 195/70R13 RX-4 radial size, and both BFGoodrich and Firestone appear in the 560-13 bias-ply RX-3 fitment. Brand choice is therefore tied closely to the exact Mazda model and size code.

That split is useful because it lets buyers think in two layers: first the correct size for the car, then the brand and sidewall presentation within that size. A Michelin or Dunlop radial gives one kind of period-European flavor for Mazda's compact sedans and coupes, while BFGoodrich and Firestone bias-ply offerings speak more directly to a classic restoration aesthetic. Once the size is settled, compare the available series and sidewall treatment to the look you want.

Rim-width guidance for 1974 Mazda tires depends on the exact size. 155R13 fits 4.00 to 5.50-inch rims, 165R13 fits 4.50 to 6.00-inch rims, 600-13 fits 4.00 to 4.50-inch rims, 560-13 spans 3.50 to 4.50 inches depending on the brand and product, and 195/70R13 fits 5.00 to 6.50-inch rims. Each of those widths is tied to the size itself, not to every 1974 Mazda model as a whole.

That makes wheel measurement an important part of setup, especially if the car has been restored, modified, or fitted with replacement wheels over the years. Even when the rim diameter is correct, a wheel that is too narrow or too wide can affect tire profile and appearance. Measure the actual wheel before ordering, then match both diameter and width range to the chosen tire rather than assuming any 13-inch or 14-inch Mazda wheel will suit every tire in that size family.

Tube requirements depend on the exact 1974 Mazda size and product. The 155R13 and 165R13 radial options include tubeless examples, while the bias-ply and other applications should be checked by individual tire marking and by the wheel type being used. A tube-type tire and a tubeless tire are not the same thing, and an older wheel can also influence the correct setup even when a tire itself is marked for tubeless use.

The smart approach is to confirm both the tire marking and the wheel condition before final assembly. If your Mazda still has original-style steel wheels, pay close attention to bead-seat condition, valve stem style, and whether the selected tire is intended to run with a tube. Handling that detail up front prevents frustration during mounting and helps avoid mismatched components on a car or truck that may already have seen decades of wheel changes.

A 1974 Mazda should be stored in a cool, dry, dark space away from direct sunlight, electric motors, welders, battery chargers, and other ozone-producing equipment that can age rubber. Keep the tires clean, maintain inflation, and move the car periodically if it sits for long stretches. Bias-ply tires generally flat-spot more readily during static storage, while any tire left near ozone and UV exposure can develop sidewall cracking over time.

If the Mazda will be parked for a season, many owners either roll it a short distance every few weeks or support it in a way that reduces long-term load on one contact patch. That matters especially on lighter classics that may sit more than they drive. Good storage habits preserve ride quality, sidewall appearance, and casing health, all of which are important whether the car is a restored RX model, an 808 sedan, or a B-series truck.

On a 1974 Mazda, tire life is usually judged more by age and condition than by mileage. Collector cars often accumulate limited miles, so a tire can look usable in tread depth while still aging out in the casing and sidewall. A sensible rule is to begin evaluating tires closely once they reach about five to seven years of age and to treat ten years as a serious replacement point regardless of tread, using the DOT date code as part of that review.

That timeline is especially relevant for cars that spend most of their lives indoors and only come out for short drives or events. Age-related hardening, cracking, and internal degradation can advance even when tread wear is minimal. For a 1974 Mazda that sees occasional use, an annual age check combined with regular visual inspection is often more meaningful than a mileage log when deciding whether the tires are still suitable for continued service.

Tires on a 1974 Mazda should be inspected before every drive and again before any extended outing. Look for visible cracking, cuts, bulges, irregular wear, signs of underinflation, and anything lodged in the tread. If your selected setup uses tube-type construction or older-style hardware, include the valve stems and any signs of slow leakage in the check, since a collector car can lose pressure gradually while sitting.

Frequent inspection is one of the simplest ways to make an older Mazda more dependable on the road. Small classics often feel fine at low speeds even when a tire is beginning to age out, so a quick visual check should become routine rather than occasional. It is also worth checking the spare and its inflation, because a decades-old spare that looks untouched may be much older than the four tires currently on the car.

For a 1974 Mazda 808, the period-correct starting point is the 6.15-13 bias-ply size, because bias-ply construction still represented the traditional original-equipment pattern for many compact cars in the early 1970s even as radials were becoming more common. The 808 is also associated with 155R13 radial fitment, which reflects the era's transition toward metric radial sizing. The exact car, market, and restoration goal determine which path makes the most sense.

A buyer pursuing authenticity should begin with the tire size and construction expected for the specific car rather than assuming every surviving 808 was delivered the same way. Dealer practices, regional markets, and later service replacements could all affect what a car wears today. If the project is heading toward show judging, confirm details with Mazda marque experts or period literature, then choose the tire that best aligns with the car's intended presentation.

Correct tire fitment absolutely matters when showing a 1974 Mazda, especially in classes that value factory-style presentation. Judges and knowledgeable enthusiasts commonly notice whether the size, construction type, and sidewall look belong to the car's era and market position. A modern-looking radial where a bias-ply appearance is expected, or a whitewall treatment that clashes with the model's original character, can stand out quickly on a carefully restored Japanese classic.

That does not mean every show car must wear the same tire, but it does mean the choice should be deliberate. A touring-oriented RX-4 on a radial may be judged differently from a preservation-minded RX-3 intended to echo showroom-era details. If trophies or marque-specific events are part of your plan, use club guidance and event rules as the final word, then match the tire's size, construction, and sidewall style to that standard.

For the 1974 Mazda 155R13 and 165R13 radial applications, Michelin XAS-family tires and Dunlop SP Sport Aquajet tires share a similar vintage radial theme but differ in the details available by size. Both appear in Blackwall form, and both reach an H speed rating, which carries a 130 mph ceiling. Michelin's 155R13 and 165R13 offerings include tubeless markings and published rim-width guidance, while Dunlop's matching sizes also carry published load figures of 937 pounds for 155R13 and 1,047 pounds for 165R13.

The practical difference is less about one being universally better and more about which specification set and visual identity fit your project. Some owners prefer the Michelin route for a certain European period look, while others like the Dunlop option within the same overall sizing family. Compare the exact size, rim-width compatibility where given, and the way each tire supports the intended personality of the car before making the final choice.

1974 Mazda tires can be suitable for highway driving when the size, construction, condition, and speed rating match the way the car is used. The radial 155R13 and 165R13 products include H-rated examples with a 130 mph ceiling, while the 560-13 bias-ply fitment includes S-rated examples with a 112 mph ceiling. Those numbers exceed normal U.S. highway speeds, but the vehicle's own brakes, suspension, alignment, and overall age are just as important as the tire's rating in real-world use.

The safer mindset is to treat the tire as one part of the system, not the whole answer. A well-sorted Mazda on the correct fresh tires is very different from a car with old rubber, weak shocks, or deferred maintenance. Before regular highway use, confirm the tire age, inflation, and wheel condition, then consider the car's broader mechanical readiness, especially on a 1970s vehicle that may not have been driven extensively in recent years.

Inflation pressure for a 1974 Mazda should follow the factory vehicle recommendation first, then be checked against the tire maker's own limits and load figures for the exact size. Where load-and-pressure figures are available, 600-13 carries 1,010 pounds at 32 psi, 560-13 carries 850 pounds at 30 psi, and 195/70R13 carries 1,246 pounds at 35 psi. Those figures describe the tire's rated capacity at a stated pressure, not automatically the exact pressure every Mazda should be driven at.

The practical takeaway is to avoid copying one pressure across the whole 1974 Mazda range. An RX-4 radial, an RX-3 bias-ply setup, and a B-series truck do not belong in the same inflation conversation. Start with the owner's manual or factory placard for the car or truck, then make sure the chosen tire's maximum load and pressure information is being interpreted correctly for that specific application and wheel setup.

Before a longer drive in a 1974 Mazda, inspect each tire for cracking, cuts, bulges, unusual wear, and proper cold inflation. Check the valve stems, make sure the spare is usable and inflated, and pay extra attention to any older bias-ply or tube-type setup that has spent long periods parked. On a vintage Mazda, tire condition should be part of a broader pre-drive review that also includes brakes, fluids, belts, hoses, lights, and wheel fastener security.

Longer drives reveal weaknesses that a short neighborhood loop may never expose. A tire that seems fine around town can show vibration, heat buildup, or pressure loss after sustained speed and distance, especially on a collector car that has not been exercised regularly. Giving the tires a thorough once-over before departure helps you catch age-related problems early and makes the rest of the car's mechanical preparation far more meaningful.