The 1974 Nissan PL620 belongs to the era when compact pickups were earning a reputation for simple utility, manageable size, and honest everyday work. Its appeal today comes from that straightforward character as much as its clean, unmistakably seventies truck styling. Tire fitment for the 1974 Nissan PL620 centers on one primary size, 6.00-14, in a bias-ply construction on a 14-inch rim. That keeps the decision focused less on multiple fitments and more on choosing the right period-style tire and deciding whether to preserve the truck’s original-style driving feel. For a stock-height pickup or a restoration-minded build, wheel condition and intended road use should guide the final choice.
Which Tire Size Is Right for The 1974 Nissan PL620
The 1974 Nissan PL620 uses one primary tire size: 6.00-14 in a bias-ply construction on a 14-inch rim. The covered PL620 Pickup sub-model shares that same fitment, so the main decision is not between multiple sizes but between maintaining the truck’s original-style tire construction and selecting the tire presentation that best suits its use and appearance.
In a numeric bias-ply size like 6.00-14, the 6.00 refers to the tire’s nominal section width in inches and the 14 identifies the wheel diameter. This is a traditional bias-ply truck size that suits the 1974 Nissan PL620’s period fitment and preserves the kind of tire construction associated with compact pickups of the era. Numeric bias-ply sizing is familiar on vintage trucks because it emphasizes straightforward fitment and a traditional profile. For a stock PL620, this size gives a clear baseline, but the wheel itself still deserves confirmation before the truck returns to regular road use.
Tire fitment is straightforward for the covered 1974 Nissan PL620 sub-model. The key point is confirming that the truck remains on its original 14-inch wheel setup and has not been altered with a different wheel or suspension combination.
1
1974 Nissan PL620 Pickup
The 1974 Nissan PL620 Pickup uses the same 6.00-14 bias-ply tire fitment that defines this model page. That makes tire selection more about choosing the right period-style replacement and checking the truck’s current wheels than sorting through multiple factory size combinations.
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:
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.
Frequently Asked Questions
These FAQs focus on 1974 Nissan PL620 tire size, 14-inch rim fitment, bias-ply construction, restoration-minded tire choice, and the condition checks that matter before putting a vintage compact pickup back on the road.
Tire Size & Fitment
What tire size fits a 1974 Nissan PL620?
The 1974 Nissan PL620 uses a 6.00-14 tire size. That is a numeric bias-ply size, and it is the primary fitment for the covered PL620 Pickup configuration on a 14-inch rim.
That makes the first fitment check fairly simple on a stock truck, but it is still worth confirming the wheel diameter and overall wheel condition before choosing tires. Older pickups are often modified over time, so the truck should be checked for aftermarket wheels, altered suspension height, and any clearance issues that could affect fitment.
What size rim does a 1974 Nissan PL620 use?
The primary tire fitment for the 1974 Nissan PL620 is built around a 14-inch rim. The 6.00-14 size uses that 14-inch wheel diameter, which is the critical rim measurement to verify before mounting replacement tires.
Rim diameter is only part of the picture on a vintage truck. Wheel width, bead condition, and the general condition of the rim should also be inspected, especially if the truck has been sitting for long periods. A damaged or mismatched wheel can create fitment and safety issues even when the tire size itself is correct.
Does the 1974 Nissan PL620 Pickup use the same tire size?
Yes. The covered 1974 Nissan PL620 Pickup uses the same 6.00-14 bias-ply tire size as the core model fitment. There is no separate primary size within the covered sub-model here, which keeps replacement selection more straightforward.
That consistency helps when choosing a tire, but it does not eliminate the need to inspect the truck’s actual setup. A PL620 that has been updated with different wheels or suspension parts may need closer measurement before a replacement is selected. Stock-looking trucks can still have wheel changes that affect tire compatibility.
Choosing the Right Tire
What should I consider when choosing a 6.00-14 tire for a 1974 Nissan PL620?
Start with the correct primary size, 6.00-14, and the fact that this fitment is bias-ply. For a 1974 Nissan PL620, the main considerations are preserving the truck’s traditional look and driving character, while making sure the tire suits the way the pickup will actually be used.
A restoration-minded truck may call for a period-style presentation, while a regularly driven pickup still needs careful attention to wheel condition, load needs, and clearance. It also helps to inspect the suspension and steering before replacing tires. Worn components can make even the right-size tire feel less stable or wear unevenly on the road.
How do I choose between the available 6.00-14 tires for a 1974 Nissan PL620?
With one primary size in play, the choice comes down to how closely the tire matches the truck’s intended appearance and use. A 6.00-14 tire for a 1974 Nissan PL620 should first match the correct size and bias-ply construction, then be evaluated for overall presentation and compatibility with the existing wheels.
It helps to think about whether the truck is being restored, preserved as an original-style driver, or used more casually for local cruising and shows. Looking at the tire alongside the pickup’s stance and wheel setup can prevent mismatches in appearance. The best choice is usually the one that respects the truck’s fitment while matching its actual purpose.
What rim-fitment details matter when choosing tires for a 1974 Nissan PL620?
The most important rim-fitment detail is the 14-inch wheel diameter required by the 6.00-14 size. On a 1974 Nissan PL620, the wheel should also be checked for overall condition, because older steel wheels can develop rust, bead-seat damage, or other issues that affect tire mounting and sealing.
Fitment also depends on the actual wheel setup still on the truck. Even when the diameter is correct, width and past modifications can influence how the tire sits and how much clearance remains at the fender, suspension, and steering components. A quick inspection before purchase prevents choosing a tire that matches the size code but not the truck’s present configuration.
Restoration & Appearance
Which tire should I choose for a period-style 1974 Nissan PL620?
A period-style 1974 Nissan PL620 build starts with the correct primary size, 6.00-14, in a bias-ply construction. That keeps the tire choice aligned with the truck’s original-era fitment approach and preserves the traditional look associated with a mid-seventies compact pickup.
For restoration-focused buyers, correct size and construction usually matter before any finer appearance details. The truck’s current wheels, stance, and intended presentation should be considered together so the finished look feels consistent. When exact historical accuracy matters, vehicle-specific literature and marque expertise are still the best way to confirm appearance details beyond basic fitment.
Does correct tire fitment matter for a 1974 Nissan PL620 restoration?
Yes, correct tire fitment plays a major role in how a restored 1974 Nissan PL620 looks and drives. Using the proper 6.00-14 bias-ply size helps maintain the truck’s intended proportions and avoids the visual mismatch that can happen when modern sizes or altered wheel combinations are used.
Fitment also affects practical details such as steering clearance, stance, and how naturally the truck sits on its wheels. Even a well-finished restoration can look off if the tire size does not suit the body and wheel openings. Confirming wheel diameter, wheel condition, and suspension height helps the tire choice support the restoration instead of distracting from it.
Fitment, Maintenance & Road Use
Can modifications affect tire fitment on a 1974 Nissan PL620?
Yes. A 1974 Nissan PL620 may have had wheel, suspension, or ride-height changes over the years, and any of those can affect tire fitment. Even though 6.00-14 is the primary size, a modified truck may no longer have the original wheel dimensions or the same available clearance.
Checking the actual wheel diameter, wheel width, and the space around the fenders and steering components is a smart step before choosing tires. Lowered suspensions, non-stock wheels, and brake or hub changes can all alter fitment. A truck that looks largely original can still have subtle changes that matter once a new tire is mounted.
What should I inspect before driving a 1974 Nissan PL620 on new tires?
Before putting a 1974 Nissan PL620 back on the road, inspect the wheels, lug hardware, steering components, and suspension for wear or looseness. Tire pressure should be set correctly for the application, and the new tires should be checked for proper seating and adequate clearance at full steering lock.
A vintage pickup that has sat for long periods also deserves a close look for brake issues, wheel-bearing play, and alignment problems that can shorten tire life. Sidewall contact marks, unusual air loss, and uneven tread wear after the first miles are all signs that something else on the truck may need attention before regular driving.
How should 6.00-14 tires on a collector 1974 Nissan PL620 be maintained?
6.00-14 tires on a collector 1974 Nissan PL620 should be inspected regularly for cracking, cuts, bulges, air loss, and uneven tread wear. Bias-ply tires on a lightly used vintage truck also benefit from routine pressure checks, since collector vehicles often sit longer between drives than modern daily drivers.
Storage conditions matter as much as mileage. Keeping the truck away from prolonged sunlight, excess heat, moisture, and ozone sources can help protect tire condition over time. It also helps to move the vehicle periodically and inspect the contact patch for flat spotting or age-related changes before heading out for a longer drive.
