The 1973 International Pickup 1310 came from a period when International built heavy-duty pickups with a distinctly work-focused character, bridging the gap between light-duty personal trucks and more commercial-grade equipment. For owners restoring or maintaining one today, tire selection is tied closely to that original truck-purpose mindset. This model uses bias-ply truck tires on 16.5-inch rims, with 800-16.5, 875-16.5, and 950-16.5 all appearing within the fitment range. Available choices stay true to that vintage truck character through STA series such as Super Transport, Traxion, and Transport Highway, all in blackwall form. The key is confirming the truck's actual wheel setup and choosing the size and tread style that suit its load expectations, stance, and intended road use.
Which Tire Size Is Right for The 1973 International Pickup 1310
Three primary tire sizes apply to the 1973 International Pickup 1310, and all of them are bias-ply tires built for 16.5-inch rims. Because both listed GVWR versions can use the same size range, the real first step is confirming which tire size is already on the truck or which wheel and load setup it is using before comparing tread style, series, and rim-width compatibility.
In an 800-16.5 size, the 800 refers to a nominal 8.00-inch section width class and the 16.5 identifies the wheel diameter in inches. This is a bias-ply truck tire format that suits the 1973 International Pickup 1310's period heavy-duty character and keeps the truck in a traditional construction type. Available choices include STA Super Transport and STA Traxion, both in blackwall form and both aimed at military and truck use. It is a useful size to evaluate when maintaining a stock-style truck setup and when wheel width and intended load use match the tire's design.
The 875-16.5 designation uses the same vintage numeric bias-ply system, with 8.75 representing the nominal section width class and 16.5 showing the rim diameter. On a 1973 International Pickup 1310, this size stays within the same traditional bias-ply truck category while offering a different fitment option within the model's range. Product choices include STA Traxion and STA Transport Highway, both blackwall truck tires with distinct series character. This size deserves a close look when the truck's current wheels, stance, or existing size markings point to 875-16.5 rather than the narrower or wider alternatives.
A 950-16.5 tire follows the same numeric bias-ply convention, with 9.50 indicating the nominal width class and 16.5 identifying the wheel diameter. For the 1973 International Pickup 1310, it remains a bias-ply truck fitment and carries the broadest section width among the listed primary sizes. STA offers this size in Traxion and Super Transport series, both in blackwall form, with special-order availability and a 6.50 to 6.75-inch rim-width range attached to the products. It is the size to examine carefully when the truck is set up for heavier-duty visual proportions and the wheels match the required width range.
Fitment is straightforward across the covered 1973 International Pickup 1310 sub-models because both GVWR versions share the same three primary tire sizes. Checking the sub-model still matters because the truck's actual wheels, existing tire size, and intended load use should guide which of those three bias-ply sizes makes the most sense.
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1973 International Pickup 1310 (GVWR 7000)
The 1973 International Pickup 1310 (GVWR 7000) falls within the same 16.5-inch bias-ply size range as the other covered version of the truck. That means tire selection comes down less to sub-model distinction and more to confirming the truck's present size, wheel width, and whether a highway-style or more traction-oriented tread is the better match.
The 1973 International Pickup 1310 (GVWR 9000) uses the same group of 16.5-inch bias-ply tire sizes as the 7000 GVWR truck. Tire choice should focus on the size already associated with the vehicle's wheel setup, along with the tread series and load-oriented characteristics that suit how the truck will actually be used.
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 International Pickup 1310 Tires for Sale
Available 1973 International Pickup 1310 tires center on STA bias-ply truck lines in 800-16.5, 875-16.5, and 950-16.5. The product grid mainly separates choices by series character, including Super Transport, Traxion, and Transport Highway, while keeping a traditional blackwall truck appearance throughout.
These FAQs focus on the tire sizes used on the 1973 International Pickup 1310, how the 16.5-inch rim fitment works, and how to sort through bias-ply truck tire choices, restoration priorities, and road-use checks.
Tire Size & Fitment
What tire size fits a 1973 International Pickup 1310?
The 1973 International Pickup 1310 uses three primary tire sizes: 800-16.5, 875-16.5, and 950-16.5. All three are bias-ply truck tires built for 16.5-inch rims, and both covered GVWR versions of the 1310 share that same overall size range.
The practical next step is determining which of those three sizes belongs on the truck's current wheel setup. Many older pickups have seen wheel changes over time, so matching the tire to the actual rim width, present wheel diameter, and intended use matters more than choosing by vehicle name alone.
What size rim does a 1973 International Pickup 1310 use?
The tire fitments for the 1973 International Pickup 1310 are all built around a 16.5-inch rim diameter. That applies across the three primary sizes used on this model: 800-16.5, 875-16.5, and 950-16.5.
Rim diameter is only one part of the fitment picture, especially on a heavy-duty vintage truck. It is also smart to verify the wheel's actual width before choosing a tire, because some sizes carry more specific rim-width requirements and the truck may no longer be wearing its original wheel setup.
Do all 1973 International Pickup 1310 sub-models use the same tire size?
The covered 1973 International Pickup 1310 sub-models share the same tire-size range rather than using separate fitments by GVWR version. Both the GVWR 7000 and GVWR 9000 trucks can use 800-16.5, 875-16.5, or 950-16.5 bias-ply tires on 16.5-inch rims.
That makes sub-model fitment simpler, but it does not make the three sizes interchangeable without checking the truck itself. Existing wheel width, current tire size, stance, and how the pickup will be driven or loaded should all be reviewed before settling on one of the available sizes.
Choosing the Right Tire
What should I consider when choosing a 1973 International Pickup 1310 tire?
Start with the correct primary size for the truck's actual wheel setup: 800-16.5, 875-16.5, or 950-16.5. From there, the main decisions are all within the bias-ply truck category, including tread series, wheel-width compatibility, and whether the truck's use leans more toward general highway driving or a more traction-oriented pattern.
Appearance also plays a role because the available products keep a traditional blackwall truck presentation. On a restoration-oriented pickup, the right choice is usually the tire that matches the truck's existing wheels, load expectations, and visual stance without forcing a size that looks right on paper but does not suit the vehicle in practice.
What brands offer tires for the 1973 International Pickup 1310?
The available tires for the 1973 International Pickup 1310 come from STA. Within the applicable sizes, the choices are spread across STA truck-oriented series including Super Transport, Traxion, and Transport Highway.
Since the brand selection is focused, comparing the available series becomes more important than comparing multiple manufacturers. Buyers should look at size first, then review the differences in tread character, wheel-width specifications where stated, load-related details where stated, and how closely the tire's look matches the truck's intended presentation.
What tire series are available for the 1973 International Pickup 1310?
The 1973 International Pickup 1310 tire selection includes STA Super Transport, STA Traxion, and STA Transport Highway, depending on the size being considered. These series are all bias-ply blackwall truck tires, but they give the buyer distinct choices within the same overall vintage truck fitment theme.
Series choice matters once the correct size has been pinned down. A truck kept close to a work-oriented original style may call for one visual and tread character, while a more road-focused or display-oriented pickup may point in another direction, so it helps to compare the series after confirming size and wheel compatibility.
Restoration & Appearance
Which tire should I choose for a period-style 1973 International Pickup 1310?
A period-style 1973 International Pickup 1310 usually starts with one of its original-style bias-ply size formats: 800-16.5, 875-16.5, or 950-16.5 on a 16.5-inch rim. That preserves the truck-era sizing language and construction style that suit a 1970s International heavy-duty pickup.
From there, the choice becomes more specific to the truck's stance and use. A restoration-oriented owner should confirm the existing wheel setup and compare the available STA series for the right balance of visual character and intended road duty, especially if the truck is being returned to a work-truck presentation.
How does tire construction affect the appearance of a restored 1973 International Pickup 1310?
Tire construction has a visible effect on a restored 1973 International Pickup 1310 because its primary fitments are bias-ply truck tires. Bias-ply sizing and profile contribute strongly to the truck's vintage commercial look, especially on a 16.5-inch wheel with blackwall sidewalls.
That does not mean every bias-ply tire creates the same impression, since tread series and size choice also shape the finished look. Owners aiming for a historically appropriate presentation should use the correct size family as the foundation, then compare side profile, tread style, and wheel proportion before making the final decision.
Fitment, Maintenance & Road Use
Can modifications affect tire fitment on a 1973 International Pickup 1310?
Yes. Modifications can change tire fitment on a 1973 International Pickup 1310 even when the truck still uses one of the proper 16.5-inch tire sizes. Aftermarket wheels, wheel-width changes, suspension alterations, and body or fender modifications can all affect which of the three bias-ply sizes works best on the vehicle.
That is why a visual check of the truck matters before ordering tires. Confirm the actual wheel diameter and width, then look at steering clearance, fender space, and how the truck sits under load so the selected 800-16.5, 875-16.5, or 950-16.5 size suits the vehicle as it exists today.
What should I inspect before driving a 1973 International Pickup 1310 on new tires?
Before driving a 1973 International Pickup 1310 on new tires, inspect the wheels, valve stems, and overall condition of the suspension and steering components. It also helps to verify that the tire size matches the wheel setup and that the tires are seated correctly on the 16.5-inch rims.
A short, careful road test is wise after installation. Pay attention to tire clearance during turns, any rubbing under compression, and whether the truck tracks evenly, especially on an older heavy-duty pickup that may have wear in the front end or changes from its original wheel and suspension configuration.
How should 800-16.5, 875-16.5, or 950-16.5 tires on a collector 1973 International Pickup 1310 be maintained?
Collector-use tires on a 1973 International Pickup 1310 should be checked regularly for air loss, sidewall cracking, cuts, bulges, and uneven wear. Since these are bias-ply truck tires, maintaining proper inflation and keeping a close eye on overall condition is especially important on a vehicle that may spend long periods parked.
Storage habits matter almost as much as miles driven. Keeping the truck away from prolonged sun, moisture, and ozone sources can help preserve the tires, and a routine inspection before each outing is smart because low-use vintage trucks often age their tires long before they wear them out.
