Valve Stem Sizes Chart

While there are three main types of tire valves: rubber snap-in, high-pressure snap-in, and high-pressure metal clamp-in; which type is appropriate for the application depends on the vehicle, required tire inflation pressures, driving circumstances, and wheel design. The Tire and Rim Association in the United States have given valve design numbers to different types and sizes of valves.

Valves can be installed in any position on the wheel, from horizontal to vertical, to match the wheel’s appearance. To accommodate valve-mounted tire pressure monitoring system transmitters, the most common valve alignment is almost horizontal, employed by many wheel manufacturers.

While tire valves can operate at any angle, valves mounted on a vertical axis and used at high speeds are more prone to lose pressure because of centripetal forces pushing the valve core and enabling air to escape. In our guide, you can find all valve stems the same size and which sized tire valve stem sizes fit your wheels.

Valve Stem Sizes

By the end, you’ll see it’s much easier to get the right tire valve stems when you use a valve stem size chart. (Read Drywall Screw Sizes Chart)

How Do I Know What Size Valve Stem I Need?

It used to be that if the tubeless valve stem fit the hole in the wheel, it was the right one. This isn’t true, but it’s what they thought at the time. Today, that assumption could cause a lot of problems.

The tubeless valve stems that are in use today haven’t had many problems over the years. The huge popularity of tubeless tires today is proof that they work well and that the valve stems they need work well, too.

Increased inflation pressures and higher speed limits make selecting the proper valve stem extremely important.

Light truck owners have told the International Tire and Rubber Association (ITRA) that their tires suddenly lose air, sometimes when they’re going at a high rate of speed. It turns out that these people were using the wrong valve stems.

In light-duty trucks, most of the complaints are about snap-in valve stems on tires with ply ratings of up to 95 pounds per square inch. Most of the problems are with TR413 or TR15 series valve stems (6.6 bars).

These tires are now called medium- or even heavy-duty truck and bus tires because they have a lot of plys and are made out of steel. But because they can carry a lot of weight, some tires are still made in the sizes we used to think of as commercial light truck tires.

Size and Conditions

It’s sometimes the same size as the valve stem hole in a wheel for a passenger car. First, the TR413 series valve stems were designed to handle inflation pressures up to 60 pounds per square inch (4.1 bars).

However, they can only handle 65 psi (4.5 bars). Many old catalogs still in use say that the valve stems in the TR413 and TR415 series can only be used at 60 psi. This is not true.

One of the most likely problems you may encounter with the TR413 and TR415 series valve stems at any inflation pressure above 65 psi is the vale stem running at a higher than average temperature due to hot weather or other similar condition.

This can cause the valve stem to crack, blow out the rim hole, or become unseated.

In most cases, this can be fixed by replacing the old valve stem with a TR600HP or TR801HP high-pressure snap-in valve stem. These valve stems can handle up to 100 psi (6.9 bars). Another good idea is to use a metal valve stem that can be clamped in and has a 200 psi rating (13.8 bars).

The TR600HP and TR602HP valve stems have holes that are .453 inches wide. The TR801HP and TR802HP stems have holes that are .625 inches wide. (Learn How To Test Water Heater Element)

On wheels with stem holes that are more than .156 inches thick, the TR413 valve stem should not be used because it has a lower pressure.

The TR600HP high-pressure valve stems can only be used on wheels with a stem hole thickness of less than.205 inches. The TR602HP, TR801HP, and TR802HP valves all have the same tolerance.

Metal valve stems must be used when the rim thickness at the stem hole is more than .205 inches. If the area around the hole is coined meets the requirements, the wheel can be thicker. However, you should use the stem that fits the wheel’s stem hole.

Using Extensions

Metal valve extensions should never be used with the TR600HP and TR801HP series snap-in valves as the centrifugal force generated at high speeds by the added weight of the metal extension can break or crack the stem, causing it to unseat and result in a loss of air.

This can probably occur even if the inflation pressure is within the limits of the snap-in valve stem.

Only plastic extensions should be used on snap-in valve stems from the TR600HP or TR801HP series, which have snap-in parts. If you have valve stems that can be clamped into place with metal, you only need extensions made of metal. The metal extensions should not be longer than is necessary.

If a car is going to be used both on and off the road, it’s always best to use clamp-in valve stems made of metal that are as short as possible.

A lubricant that isn’t made from petroleum should be used on all snap-in valve stems before they are put in the stem hole.

In addition, the stem hole should be checked to make sure there are no sharp edges or metal slivers that could damage the stem. There should also be no rust, excessive paint drippings, or other buildup on the valve stem seating area.

Check Hole Specifications

If you follow procedures according to industry standards and still have problems losing air through the stem hole, check the specifications for the stem hole in the wheel, including the prementioned thickness limitations.

It might not be big enough to machine or coin around the stem hole on some wheels with a.453-inch stem hole. On this type of wheel, the coined area must be at least.125 inches bigger than the valve hole.

The Tire and Rim Association Yearbook has all the information you need about specifications. You can also ask your suppliers for help.

Never assume that the stem on the tire/wheel assembly you’re working on for a customer is the right one, even if it looks like it. (Learn How To Clean Concrete Without Pressure Washer)

Someone who handled the tire/wheel assembly before you may have made a mistake or failed to fit the valve stem to the hole size, air pressure, or application. Installing the right stem can be as important as matching the wheel parts on a wheel with a lot of parts.

Standard Valve Stem Size

What Is The Standard Valve Stem Size?

While there are no real standard sizes, here are some examples of valve stems you can find.

TR13

  • Straight stem of 1.38 inches.
  • Base width of 2.20 inches.
  • Stem diameter of 0.46 inches.
  • Inflation pressure of 60 psi.
  • Use on 0.445 or 0.631-inch rim hole.
  • Available with nut and bushing for 0.618 or .633 rim holes.
  • Use for industrial tubes, light trucks, and more.

TR15

  • Straight stem of 1.38 inches.
  • Base diameter of 2.20 inches.
  • Stem diameter of 0.65 inches.
  • Inflation pressure up to 60 psi.
  • Use on a 0.618 and 0.633-inch rim hole.
  • Use on industrial tubes, passenger, and light trucks.

TR 300

  • Straight stem of 1.76 inches.
  • Base diameter of 2.28 inches.
  • Stem diameter of 0.61 inches.
  • Use on 0.618 or 0.633-inch rim hole.
  • Maximum inflation pressure of 150psi.
  • You can use this tire valve stem for high-pressure tubeless tires on buses and trucks.

TR JS2

  • Stem length of 1.02 inches and a bend at 70 degrees.
  • Base diameter of 2.20 inches.
  • Stem diameter of 1.31 inches.
  • Use on 0.445 or the 0.631 rim holes.
  • Not suitable for liquid ballast.
  • Maximum inflation pressure of 60psi.
  • Use on industrial trucks and trailers.

TR6

  • Stem length of 1.36 inches.
  • Base diameter of 1.77 inches.
  • Use on rim holes of 0.333 inches and 0.453 inches.
  • Inflation up to 60psi.
  • Metal stem has external threads.
  • Each valve has two locknuts.
  • Use on AVT and LG applications.

JS 89

  • Tire valve stems are 0.49 inches with a 90-degree bend.
  • Base diameter of 2.20 inches
  • Stem diameter of 2.01 inches.
  • Use on rim holes of 0.445 or 0.631 inches.
  • Best use for industrial applications.

Are There Different Diameter Valve Stems?

Here are a few different varieties of valve stem types outside the above basic types.

Tubeless Rubber Snap-In Valves

Tubeless Rubber Snap-In Valves

Tubeless rubber snap-in valves have a maximum cold tire inflation pressure of 65 psi. They are suited for passenger cars, light-duty trailers, and light trucks, as well as autocross competition.

Rubber snap-in valves with effective lengths ranging from 7/8″ to 2-1/2″ accommodate either.453″ or.625″ diameter holes in the rim. (Find the Best Pressure Washer)

While most rubber snap-in valves have a plastic cover, some have chrome sleeves and metal caps to match the look of a custom or alloy wheels.

Industry Valve Number
Max Inflation Pressure (PSI)
Effective Length (Inch)
Hole Diameter in Wheel (Inch)
412650.880.453
413651.250.453
414651.500.453
415651.750.453
418652.000.453
423652.500.453
415651.250.625
425652.000.625

Tubeless Snap-In Valves for High-Pressure

Tubeless high-pressure snap-in valves are designed for medium and heavy-duty trucks and trailers and must be used when the recommended cold tire inflation pressures exceed 65 psi.

The maximum cold inflation pressure for.453″ rim holes are 80 psi, whereas the maximum cold inflation pressure for.625″ rim holes are 100 psi.

In steel wheels, high-pressure snap-in valves have a thicker rubber base with a metal barrel and a plastic cap. This type of valve is often found in these types of wheels. There are effective lengths that range from 1-1/4″ to 2″ long.

Industry Valve
Number
Max
Inflation
Pressure
(PSI)
Effective
Length
(Inch)
Hole
Diameter in
Wheel
(Inch)
600HP801.270.453
602HP802.000.453
801HP1001.310.625
802HP1002.000.625

High-Pressure Metal Clamp-In Valves

High-pressure metal clamp-in valves can be used with almost any wheel. They are recommended for all track activities and when the speed of the vehicle is going to be more than 130 mph.

When the retaining nut on metal clamp-in valves is tightened, a rubber grommet seals against the wheel.

While metal clamp-in valve design and styling can result in retaining nuts being hidden inside the wheel or visible outside, those with the retaining nut on the outside have the advantage of examining and modifying retaining nut tightness without having to remove the tire from the wheel.

Metal clamp-in valves have a maximum operating pressure of 200 psi and are available in rim sizes 0.453″ or 0.625″, as well as custom sizes like 6mm (.236″) or 8mm (.315″).

In addition, metal clamp-in valves have a metal cap available in straight or bent configurations to fit wheels with unusual forms.

They have effective lengths ranging from flush to 2″ and in straight or bent configurations to fit wheels with unique geometries. For racing applications, low-profile and lightweight alloy clamp-in valves are also available.

Valve Cores

Regardless of valve type, the valve core is the primary sealing component and should be fitted snugly into the valve core chamber. Valve cores are available in two lengths: short and long, with the latter being favored for high-performance applications.

Valve cores are offered in nickel-plated and brass finishes. A valve stem will experience galvanic corrosion if a standard brass valve core is used in aluminum; the brass valve core will eventually seize in the valve’s aluminum barrel.

Nickel-plated valve cores must instead of brass valve cores in the aluminum valve stems of tire pressure monitoring sensors to help avoid galvanic corrosion.

When inflating a tire, all valve cores have a seal coupled to a moveable, spring-loaded pin that permits pressurized air to flow while allowing air to escape when the pin is depressed to unseat the seal.

While valve cores can withstand a working pressure of 300 psi, grit, sand, and moisture must be avoided. Grit and sand may prevent valve cores from properly closing, and moisture can freeze and undermine the seal in freezing conditions.

How Are Valve Stems Measured?

Valve Stems Measured

Valve Caps

Valve caps should always be used for various reasons, including high-speed pressure loss and core contamination.

If the cap on tire valve is compromised, the valve cap acts as a backup seal, preventing air from escaping.

While utilizing valve caps may make checking tire pressures in the pits at a racetrack take longer, the consequences of a tire losing pressure are far harsher.

Valve caps come in three different types: plastic dome, metal dome, and a metal “screwdriver” design for tightening and loosening valve cores.

If you want to drive on the racetrack, you’ll need metal valve caps instead of plastic dome caps. This is because racetracks can get very hot, and plastic dome caps can’t handle that.

Valve caps are knurled to make tightening and loosening easier, and some metal caps include hex head designs. To completely seal the valve, metal caps utilize a rubber washer or o-ring.

If the cap on the tire valve cap is missing, squeeze the valve core briefly to release a small amount of air before monitoring or adding air pressure. This will allow debris to be blown out of the valve by the pressurized air inside the tire.

It’s more challenging to avoid wetness because it’s sometimes difficult to get a steady dry air source. Therefore, checking or adding tire inflation pressure outside during a blizzard is not suggested unless required.

Valve Extensions

Vehicles with wheel covers may also use nylon or metal extensions ranging in length from 1/2″ to 2″ to facilitate checking and adjusting tire pressures easier.

Mud, ice, and snow have packed into the tips of the nylon extensions and enable air to escape because they are exposed to the weather.

If the nylon extensions scrape against a curb, the damaged tip can depress the valve core, escaping air. Ideally, tire valves of adequate length or metal extensions threaded to take a valve cap should be used.

Replacement Valve

Tire valves should be inspected and changed if any cracking emerges. Rubber deteriorates with time, and tire valves are not intended to resist degradation throughout the life of two standard tires in typical service.

According to industry standards, tire valves should be replaced whenever new tires are mounted.

While Track & Competition DOT tires may only last a few weekends, the metal clamp-in tire valves should be replaced every other year.

Heat delivered to the wheels from the brakes is much higher than in everyday use, and even any valve type could suffer.

Even if you have these on a light-duty trailer, even if the inner tube or tire is fine, the tire valve could degrade because of the weather no matter how much you use your trailer.

Tire Pressure Monitoring Systems

Metal clamps or rubber snap-in valves are used to hold sensors and transmitters in place in many direct tire pressure monitoring systems (TPMS).

The threaded insert at the base of these distinctive metal clamp-in valves accepts the bolt that connects the sensor/transmitter to the valve.

Valve Stem Sizes Chart

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