7 Types Hitch Pin Sizes: [Threaded, Coupler, Trailor, Tractor]

Threaded hitch pins come in the same sizes (1/2 inch x 13 threads per inch) for 2” and 1-1/4” receiver vehicle racks. These hitch pins are available in the standard that comes with the rack as well or locking that is available from many websites.

This CURT 21580 Trailer Hitch Pin & Clip has a 5/8-Inch Diameter and Fits 2 or 2-1/2-Inch Receiver (Check price here)

CURT 21580 Trailer Hitch Pin & Clip, 5/8-Inch Diameter

Smooth hitch pin size is ½” diameter for a 1-1/4” size receiver racks and 5/8” diameter for 2” receiver racks. 

For more details and more hitch pin check the latest product and prices.

Hitch Pin Sizes : What are standard hitch sizes?

        CategoryTop Link Pin Diameter Lift Arm Pin DiameterLift Arm SpacingMost Height
          Cat. 05/8”5/8”20”12”
          Cat. 13/4”7/8”26”15”
          Cat. 21”1-1/8”32”15”-24”
         Cat. 3N 1-1/4”1-7/16”32”15”-24”
          Cat. 31-1/4”1-7/16”38”19”-27”
         Cat. 4N 1-3/4”2”38”27”
          Cat. 41-3/4”2”46”27”

How to measure a hitch?

The best way to measure a hitch is to measure the inside part of the hitch to the inside of the hitch at first. This will help you to learn the size ball mount which you will require to get for measuring your hitch.

It may come in 1-1/4” size which is pretty common on both cars and SUVs.

However, it is most likely either a 2-1/2 inch or 2-inch hitch, because this size hitch is mostly found on most pickup trucks and SUVs. 

Tractor hitch pin sizes

CategoryHitch Pin Size Upper LinkHitch Pin Size Lower LinkLower Hitch Spacing Tractor Drawbar Power
      05/8” (17 mm)17 mm (5/8”)500 mm (20”)15 kW
      1¾” (19 mm)22.4 mm (7/8”)718 mm (28”)15-35 kW
      225.5 mm (1”)28.7 mm (1 1/8”)870 mm (34”)30-75 kW
      331.75 mm (1 ¼”)37.4 mm (1 7/16”)1010 mm (40”)60-168 kW
      445 mm (1 ¾”)51 mm (2”)1220 mm (48”)135-300 kW

Threaded hitch pin

Threaded hitch pins come in the same sizes (1/2 inch x 13 threads per inch) for 2” and 1-1/4” receiver vehicle racks. These hitch pins are available in the standard that comes with the rack as well or locking that is available from many websites.

Smooth hitch pin size is ½” diameter for a 1-1/4” size receiver racks and 5/8” diameter for 2” receiver racks. 

Locking hitch pin sizes

This 5/8-Inch Pin Diameter, Fits 2-Inch Receiver (Check latest prices here)

Locking hitch pin sizes

On Class 1 and 2 1-1/4 inch trailer hitch, you should use a ½ inch hitch locking pin because this lock has a 2-inch lifespan which is the right usable length of the locking pin. Therefore, using a ½ inch hitch locking pin should be the right fit for it. 

Ram 1500 hitch pin size

Ram 1500 trailer hitch pin size is 2 inches only. But you do need to make sure your tires are in the best possible condition because only then it would not crush. As you can see this work is the key, therefore you will need to come into the problems and issues with this particular portion at some other time or another. 

Check this OEDRO 2″ Rear Trailer Hitch Receiver Class 3 Tow Towing Hitch & Cover Kit that

  • Fits 2003-2018 Dodge Ram 1500
  • 2003-2013 Ram 2500 3500
  • 2019-2021 Ram 1500 Classic, Tow Combo (Hitch Cover Included)

Class 3 hitch pin size

For a Class 3 or even Class 4 2” trailer hitch and Class 5 2-1/2” trailer hitches, you will require to use a diameter of 5/8 inch size pin that also has a span of 3-5/8 inches. 

What size is a class 3 hitch pin

Hitch pin clip

Hitch pin clip refers to a vast range of fasteners that are used to protect and prevent the hitches from becoming disoriented from their application that was intended primarily. Most of the hitch pin clips can easily be reused and installed, while a few require tools for completing the installation process as well as are made in intending for single use. 

Chevy Silverado hitch pin size

The best Chevy Silverado hitch pins and clips both are available online with a guaranty. Pin size for Chevy Silverado hitches are as follows: 

  1. 2-inch hitch pin
  2. 2-1/2 inch hitch pin
  3. 5/8 inch hitch pin
  4. 3-3/16 inch hitch pin. 

What size hitch pin for the 2-inch receiver?

For a 2-inch receiver, a 5/8 inch size hitch will be suitable because both the Class 3 and 4 2 inch receiver hitch work perfectly with a 5/8 inch diameter pin and therefore it would be best to use a 5/8 inch hitch pin for the 2-inch receiver. What is the Hitch and What is the Receiver?

FAQ

How do I know what size hitch pin I need?

To know the size first you have to know the types. There are two kinds of hitch pins. One is threaded and the other is smooth. For threaded, hitch pins are of the same size which is ½”×13 threads per inch. They are for 1- ¼” and 2-inch receivers. For smooth hitch pins, ½” is for 1-¼” receiver, and ⅝” diameter is for 2″ receiver.

Are there different size hitch pins?

Yes, there are different sizes of hitch pins depending on the type. You have to know what type of hitch pin you want. If you want to be threaded then hitch pins are of the same size which is ½”×13 threads in per inch. And if your requirement is a smooth hitch pin, ½” is for 1-¼” receiver and ⅝” diameter is for 2″ receiver.

What size hitch pin is 14?

If you want to know what type of hitch pin is needed for 1/4, then in the case of a 1-1/4 inch trailer hitch receiver the hitch pin size has to be in 1/2 inch diameter. It can be a Class I trailer or a class II trailer, no matter what you will use the same sized pin for them. 

What size is a hitch pin clip?

Hitch pin clips are used to keep the hitch pins in place. It helps in towering. Hitch pin clips are usually measured by wire diameter and shaft diameter. So you have to measure your shaft diameter and wire diameter first to know which size of the clip you will need.

How long is a trailer hitch pin?

A trailer hitch pin is of two types. Threaded and smooth. For threaded, hitch pins are of the same size which is ½”×13 threads in per inch. For smooth hitch pins, ½” is for 1-¼” receiver and ⅝” diameter is for 2″ receiver. From the bend to the outside groove, the measurement is 4-¼ inches. From the bend to the end of the pin, it is 4-¾”.

How do you measure a hitch?

For a secure connection, your trailer needs hitching up. For this, you will need a hitch pin and clip to secure the pin. Usually, there are measurements available for your trailer. But if you want to measure it, you need to remember that the effective length is usually measured from bend to edge of the hole. The bend is known as an economical method here. Then, you just need to decide the right type of hitch for you.

How do I find my hitch pin?

If you want a standard non-locking hitch pin you can get Class 1 and Class 2 hitches. The pin is 1/2-inch in diameter. If you have Class 3, 4, or 5 hitches then instead you can use 5/8-inches in diameter. Both include the retaining clip. 

You can check the hitch class you have by looking at the safety sticker on the hitch. And if you want a threaded hitch pin, they are for 1- ¼” and 2-inch receivers. For smooth hitch pins, ½” is for 1-¼” receiver and ⅝” diameter is for 2″ receiver.

Conclusion

There are four standard sizes for hitch pins are 1-1/4”, 2”, 2-1/2”, and 3”.  The size of the hitch pin refers to the inner dimension of the hitch receiver. So, using a standard size for hitch approach will allow you to get more versatile options for towing your vehicle.

If you go through the whole article, you will certainly possess a better and comprehensive knowledge of hitch pin sizes. 

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