The 1973 Nissan PL610 came from a period when compact imports were gaining ground with buyers who wanted efficiency, tidy road manners, and modern packaging without giving up everyday usefulness. Sedan and Wagon versions of the PL610 reflect that practical character, and tire choice plays directly into how the car looks and drives today. This model uses either a 165R13 radial or a 6.45-13 bias-ply tire on a 13-inch rim, so construction choice matters as much as size. Available options lean toward blackwall radials from Michelin and Dunlop, while the bias-ply route keeps a more traditional presentation. The right choice depends on whether the goal is road use, period-style appearance, or a balance of both.
Which Tire Size Is Right for The 1973 Nissan PL610
The 1973 Nissan PL610 uses two primary tire sizes, both on 13-inch rims: a 165R13 radial and a 6.45-13 bias-ply. Since the Sedan & Wagon sub-model uses both sizes, the first decision is not sub-model identification but whether the car should remain with a traditional bias-ply fitment or use the radial size that offers a more modern construction in the same wheel diameter.
6.45-13 is a numeric bias-ply size in which 6.45 refers to the nominal section width in inches and 13 identifies the rim diameter. For the 1973 Nissan PL610, this size represents the traditional bias-ply fitment and preserves the construction style associated with many earlier replacement practices for compact cars of the era. Bias-ply selection is less about brand and series variety here and more about maintaining a vintage-style tire format on the proper wheel diameter. It is the size to evaluate when appearance, steering feel, and period-style presentation matter more than moving to a radial layout.
Tire fitment is straightforward across the covered 1973 Nissan PL610 sub-models because the same two primary sizes apply to the Sedan & Wagon. That makes the main decision one of construction and intended use rather than a trim-specific size difference.
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1973 Nissan PL610 Sedan & Wagon
The 1973 Nissan PL610 Sedan & Wagon uses both the 165R13 radial and the 6.45-13 bias-ply on a 13-inch rim. Tire selection comes down to whether the car should keep a more traditional bias-ply format or use a radial option for a road-driven setup with available blackwall choices.
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.
Best 1973 Nissan PL610 Tires for Sale
Available 1973 Nissan PL610 tire choices center on the 165R13 radial size, with Michelin and Dunlop options in blackwall form. The main points to compare are tire series, radial construction details, and rim-width compatibility where it is stated.
Owners of a 1973 Nissan PL610 usually need clarity on the two primary tire sizes, 13-inch rim fitment, radial versus bias-ply construction, and how to choose among available blackwall radial options for road use or restoration-minded presentation.
Tire Size & Fitment
What tire size fits a 1973 Nissan PL610?
The 1973 Nissan PL610 uses two primary tire sizes: 165R13 in radial construction and 6.45-13 in bias-ply construction. Both sizes are tied to the same 13-inch wheel diameter, so the choice is centered on tire type and presentation rather than moving to a different rim size.
That means the key step is deciding how the car will be used. A road-driven PL610 may point you toward the 165R13 radial format, while a more restoration-oriented or traditional setup may keep the 6.45-13 bias-ply format. Wheel width, overall tire condition, and any previous wheel changes should still be checked before selecting a tire.
What size rim does a 1973 Nissan PL610 use?
The 1973 Nissan PL610 uses a 13-inch rim diameter with both of its primary tire sizes. The 165R13 radial and the 6.45-13 bias-ply are both built around that same wheel diameter, which simplifies the basic fitment question compared with cars that used multiple rim sizes.
Rim diameter is only one part of fitment, though, so it is still wise to confirm the actual wheels on the car before buying tires. Many older imports have seen wheel swaps over the years, and width or offset changes can affect how a tire sits and clears. Measuring the wheel already on the vehicle is a smart final check.
Does the 1973 Nissan PL610 Sedan & Wagon use the same tire size?
Yes. The 1973 Nissan PL610 Sedan & Wagon uses the same two primary tire sizes: 165R13 as the radial fitment and 6.45-13 as the bias-ply fitment. There is no sub-model split here that forces one body style into a different wheel diameter or separate primary tire size.
That consistency makes selection easier because the decision is really about construction and intended character. A buyer can focus on whether the car should retain a traditional bias-ply look or use a radial setup in the correct 13-inch format. Condition of the wheels, suspension, and any modifications still deserves a quick inspection before installation.
Bias-Ply & Radial Options
Is 6.45-13 a bias-ply or radial tire for the 1973 Nissan PL610?
6.45-13 is the bias-ply tire size used on the 1973 Nissan PL610. It is a vintage numeric size where the 6.45 figure refers to nominal section width and the 13 identifies the wheel diameter, making it distinct from the PL610's 165R13 radial fitment.
Choosing 6.45-13 keeps the car in a traditional tire format, which can matter for appearance and period feel. Before moving between the bias-ply and radial setups, check the actual wheel dimensions and inspect the steering and suspension condition. Construction changes can alter how the car responds even when the rim diameter remains the same.
Should I use bias-ply or radial tires on a 1973 Nissan PL610?
The 1973 Nissan PL610 supports both approaches through its primary sizes: 6.45-13 in bias-ply form and 165R13 in radial form. The best direction depends less on the car itself and more on whether the goal is a traditional presentation or a setup centered on radial construction for regular road use.
A bias-ply choice usually appeals to owners preserving a vintage look and feel, while a radial choice often suits drivers who want a more modern tire type in the correct 13-inch diameter. Keep the decision tied to the actual wheel on the car, and compare wheel width, tire condition, and clearance before changing construction.
What should I check before converting my 1973 Nissan PL610 from bias-ply to radial tires?
A switch from the PL610's 6.45-13 bias-ply fitment to the 165R13 radial fitment starts with confirming that the car still has the correct 13-inch wheels and that wheel width falls within the tire's usable range. The suspension, steering components, and overall wheel condition should also be inspected before making the change.
Radial conversion is not just a matter of matching rim diameter. Tire shape, wheel compatibility, and vehicle clearance all need a careful look, especially on an older car that may have replacement wheels or worn front-end parts. A short test-fit review by a qualified tire professional is worthwhile when anything about the setup looks questionable.
Choosing the Right Tire
What should I consider when choosing a 165R13 tire for a 1973 Nissan PL610?
Start with the basics: the tire should be the correct 165R13 radial size for the 1973 Nissan PL610 and should match the 13-inch wheel on the car. From there, the meaningful differences are brand, tire series, blackwall presentation, and any stated rim-width compatibility or load specification that applies to the specific product.
For a road-driven PL610, it helps to think about how original-looking or sporting the finished setup should appear. Michelin XAS-FF, Michelin XAS, and Dunlop SP Sport Aquajet each bring a different series identity even though they share the same size family. Checking wheel width and the overall condition of older wheels remains an important final step.
What sidewall styles are available for 1973 Nissan PL610 tires?
The available 165R13 radial products for the 1973 Nissan PL610 are offered in blackwall form. That gives the PL610 a clean, understated presentation that suits many imported compact cars of the period without pushing the appearance toward a more decorative sidewall treatment.
Since the visible choices here are not built around whitewalls or stripe tires, the selection process becomes more about series, brand, and construction than sidewall styling. Owners focused on an especially original-looking restoration should still compare the tire's overall visual profile and tread-era character with period photos and marque-specific references before making a final choice.
What brands offer tires for the 1973 Nissan PL610?
Michelin and Dunlop offer radial tires for the 1973 Nissan PL610 in the 165R13 size family. Michelin appears in XAS-FF and XAS form, while Dunlop is represented by the SP Sport Aquajet, giving PL610 owners more than one established brand path within the same basic radial fitment.
Brand alone should not make the decision. It is better to compare the exact tire series, wheel-width suitability where stated, sidewall presentation, and how the car will actually be driven. On an older Nissan with unknown wheel history, confirming the wheels and checking for rubbing or suspension wear matters more than simply choosing by name.
Restoration & Appearance
Which tire should I choose for a period-style 1973 Nissan PL610?
A period-style 1973 Nissan PL610 can reasonably follow either of its primary fitment paths, depending on the look you want to preserve. The 6.45-13 bias-ply keeps a more traditional vintage tire format, while the 165R13 radial reflects the compact imported-car transition into metric radial sizing during the early 1970s.
That makes the decision more nuanced than simply picking the oldest-looking tire. A restoration-minded owner should compare surviving photos, sales literature, and marque-club knowledge if exact historical presentation matters. For a driver-quality restoration, the right answer is often the tire that best balances the car's era-appropriate appearance with its intended use.
Does correct tire fitment matter for a 1973 Nissan PL610 restoration?
Yes, correct tire fitment matters because tire size and construction have a strong effect on how a 1973 Nissan PL610 sits, steers, and presents visually. Using one of the proper 13-inch fitment sizes keeps the restoration grounded in the dimensions and construction types associated with the car rather than drifting into an obviously mismatched setup.
Even when the car is not being restored to strict show standards, the tire should still suit the wheel and preserve sensible proportions. A radial and a bias-ply can give the car noticeably different character, so the best restoration choice depends on whether authenticity of appearance, regular road use, or a compromise between the two is the real priority.
Fitment, Maintenance & Road Use
Can modifications affect tire fitment on a 1973 Nissan PL610?
Yes. Modifications can affect tire fitment on a 1973 Nissan PL610 even when the selected tire is one of the correct primary sizes. Aftermarket wheels, changes in wheel width or offset, lowered suspension, replacement springs, or body repairs around the wheel openings can all alter how a 165R13 or 6.45-13 sits on the car.
That is why an older PL610 should be treated as an individual car rather than assumed to be untouched. A quick check of wheel dimensions, steering travel, and fender clearance can prevent surprises after mounting. Any car with non-original wheels or visible suspension changes deserves extra attention before committing to a tire choice.
What should I inspect before driving a 1973 Nissan PL610 on new tires?
Before putting a 1973 Nissan PL610 back on the road with new tires, inspect the wheels for damage or corrosion, confirm lug hardware condition, and look closely at steering and suspension wear. Tire pressure should be set correctly for the chosen tire, and the car should be checked for rubbing during slow steering movement and short road testing.
A fresh set of tires cannot compensate for loose front-end parts, bent wheels, or neglected brakes. On a collector-era compact that may have spent time parked, it is also smart to check for fluid leaks, aging rubber components, and uneven ride height. A careful once-over helps the new tires perform as intended and keeps the first drive more predictable.
How should 165R13 tires on a collector 1973 Nissan PL610 be maintained?
165R13 tires on a collector 1973 Nissan PL610 should be kept properly inflated, inspected regularly for cracking, cuts, bulges, and uneven wear, and protected from long periods of sun, moisture, and ozone exposure. Cars that are driven infrequently should also be moved occasionally so the tires are not left carrying weight in one position for extended periods.
Regular inspection matters more on lightly used vintage cars because age and storage conditions can become issues before tread wear does. It also helps to check for slow air loss and keep the wheels clean and in good condition. Before any longer drive, give the tires a close visual review and confirm that nothing has changed since the last outing.
