Is There a Load Range Chart for Trailer Tires

Question

Question:

Is there a chart listing the various load range letters for utility trailers? This chart would show each lettered load range and the second column would show the actual load range in pounds for each letter. This is a very simple question, but I cannot find anything like this on your site or on the entire internet!

asked by: Stephen S

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Expert Reply:

The reason that you cannot find a list of all load ranges and the weight capacity for each in regards to trailer tires is because it will be different for each size. For example, a 205/75-15 tire like part # AM10245 which has a load range D rating is rated for up to 2,150 lbs whereas a 225/75-15 tire like part # AM10256 which also has a load range D rating is rated for up to 2,540 lbs.

We currently offer load ranges from B-J in a variety of different seizes which I have attached for you below. In order to make sure you get the correct load range you will need to find out the GWVR of the trailer and then select the load range that covers this.

expert reply by: Conner L

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Answer 1

Your math is correct in your trailer weight load example. If a fully-loaded tandem axle trailer weighs 4000-lbs then each of the 4 tires will bear 1/4th of that load, or 1000-lbs. In this case a tire rated for 1300-lbs would provide a good safety…

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Answer 2

Load range B trailer tires are going to have a lower capacity than C load range tires. Basically that, psi rating, and the ply rating are the only differences. A higher load range tire would last a little longer than lower load ranges of the same…

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Answer 3

When we do not indicate a specific speed rating for a trailer tire or wheel/tire item this simply means that the product has a nominal 65-mph speed rating. This is typically classified as either a J or K speed rating. We only call out the higher…

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Answer 4

Trailer wiring generally uses 16 gauge wire, part #16-1-1. However, with a long trailer like yours you may want to go with a larger like 14 gauge #DW07550-1 or even 12 gauge #12-1-1. Each size is sold by the foot. You will need to have the lights…

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Answer 5

It sounds like you are overdrawing your running light circuit and you do not have the amperage to illuminate all of the running lights at the same time. You are probably on the verge of blowing a fuse on your tow vehicle so I would recommend you stop…

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Answer 6

Most trailer wiring that runs to trailer lights is 16 gauge. I would rather people use 14 or 12 unless the lights are LED which draw considerably less. But for most people 16 gauge works just fine for basic trailer lighting. If you are planning on…

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Answer 7

The way that the 35 foot Wishbone 4-Way Trailer Wiring Harness, #A35W42B, works is instead of having 1 taillight wire (brown) that you would need to splice into in order to run to both taillights, this harness has two wires (one attached to each…

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Answer 8

Yes, you can run a 175/80-R13 tire on a trailer that came with a 175/80-D13 tire. The only difference between the two is that "R" stands for radial ply and "D" stands for diagonal. For a replacement 175/80-R13 tire, I recommend…

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Answer 9

Yes, ST175/80-D13 trailer tires can be replaced with ST175/80-R13. For this, I recommend the Provider ST175/80R13 Radial Trailer Tire part #TTWTRTM1758013C which is an excellent option with automotive-grade tread for the best longevity and…

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Answer 10

The difference between an load range C and load range D tire in the same size is the capacity and psi rating. The two tires will still have the same dimensions and fit on the same wheel. The D rated tire has a higher capacity. For a ST175/80D13 like…

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Answer 11

Unless otherwise noted all trailer tires are rated for 65 miles per hour as the max speed. Exceeding this figure will cause heat to build up and the tire will fail. It's also important to inflate the tire to it's max psi rating to get the…

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Answer 12

Even though I cannot comment specifically on the grease you used because I am not familiar with it, I can tell you the best grease for trailer bearings is a a grease with a rating of GC-LB, which just means it is made to withstand very high…

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Is There a Load Range Chart for Trailer Tires

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