What is the Difference Between a Class I and Class II Ball Mount

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Question:

what is Class II and Class I Ball Mounts for ?

asked by: Ethan

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Expert Reply:

Class I Ball Mounts

When towing with a Class I trailer hitch, the Class I ball mount that is recommended by the trailer hitch manufacturer should be used. All Class I trailer hitches are tested and rated with the specific ball mount for that hitch. Using a ball mount that is not recommended by the manufacturer will void the warranty. The features of a a Class I ball mount are:

Has a 1-1/4 inch x 1-1/4 inch shank
Class II ball mounts will not fit on Class I trailer hitches
Held in place with a 1/2 inch hitch pin like # PC2
Uses ball with a 3/4 inch shank diameter
Rated for 2,000 lbs gross trailer weight
Only 1-7/8 inch diameter or 2 inch diameter hitch balls can be used

Class II Ball Mounts
Class II Drawbar 5" Rise (Kit)

Similar to Class I ball mounts and hitches, if towing with a Class II trailer hitch, the ball mount that is recommended by the manufacturer should be used. All Class II trailer hitches are tested and rated with the specific ball mount for that hitch. Using a ball mount that is not recommended by the manufacturer will void the warranty. Features of a Class II ball mount are:

Has a 1-1/4 inch x 1-1/4 inch shank
Class II ball mounts will not fit on Class I trailer hitches
Held in place with a 1/2 inch hitch pin like # PC2
Uses ball with a 3/4 inch shank diameter
Rated for 3,500 lbs gross trailer weight
Only 1-7/8 inch diameter or 2 inch diameter hitch balls can be used

The main difference is capacity and that a Class II ball mount will have a longer shank than a Class I. This is why a Class II ball mount will not fit in a Class I trailer hitch.

Most all Class I and II accessories including ball mounts have a solid shank. Higher capacity ball mounts have a hollow shank (Class III and up) but some of them can be solid as well. I have included some links with additional information on hitch classes and sizes and more on ball mounts.

expert reply by: Michael H

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Answer 1

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Answer 2

I checked to see which hitch you ordered for your 2011 Dodge Caliber and it was Draw-Tite hitch #24769. For Class I trailer hitches like this you are supposed to use the ball mount recommended by the hitch manufacturer. In this case it is #3591 and…

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Answer 3

It sounds to me like the hinge pin on your trailer's tailgate is worn and is causing excessive movement which will result in a noisy ride. In order to secure the tailgate to the trailer while driving down the road I recommend using a set of…

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Answer 4

The difference between the Class II and Class III hitches has to do with their Gross Trailer Weight (GTW), their Tongue Weight (TW), and their Hitch Receiver Size. Class II trailer hitch receivers have a 1-1/4 inch receiver and can be rated up to…

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Answer 5

A 4-Way trailer connector has the basic lighting functions only; running lights, left turn signal and brake lights, right turn signal and brake lights, and ground. A 7-Way has these functions and a 12 volt circuit, a circuit for electric trailer…

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Answer 6

Yes, we do. To add a hitch to your 2024 Toyota Grand Highlander, I recommend the Curt Trailer Hitch item #C26VV. This hitch is custom fit and bolts to your Toyota with included hardware. This is a class III hitch with a 2" receiver. It has a…

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Answer 7

The OEM prep package consists of 4 "pucks" in the bed of the truck that will allow you to drop in puck style hitches for easy installation and removal, that gives you a completely clear bed when not in use. The B&W Companion OEM 5th…

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Answer 8

In order to determine the torque rating for the lug nuts on your trailer you will need to know check out the chart I attached that shows all of the torque specs for all the trailer lugs available based on stud size, wheel material and wheel size.

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Answer 9

Yep, so long as your 2024 Subaru Crosstrek Wilderness is not a hybrid both the Curt and etrailer hitches will fit: - Curt Trailer Hitch Receiver #C13382 - etrailer Trailer Hitch Receiver #e98912 The only difference besides price is the finish; the…

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Answer 10

Class I and Class II hitches both have a 1-1/4 inch receiver opening. The difference is that a Class I hitch has a lower tongue weight rating, usually 200 pounds and a lower towing rating, usually 2,000 pounds. A Class II hitch usually has a tongue…

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Answer 11

To add a hitch to your 2024 Toyota RAV4, I recommend the etrailer item #e23ZR. This hitch is custom fit and bolts to your Toyota with included hardware. This is a class III hitch with a 2" receiver. It has a 4,000 lbs towing capacity, and a 600…

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Answer 12

As far as wiring for the 2024 Toyota Grand Highlander, we do have the Curt #C59236 available which is more of a universal hardwire harness. Unfortunately there are not any plug-and-play options that have been confirmed to fit as of yet (October 4,…

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What is the Difference Between a Class I and Class II Ball Mount

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