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Karrier ST175/80R13 Radial Trailer Tire with 13" Galvanized Wheel - 5 on 4-1/2 - Load Range D

Karrier ST175/80R13 Radial Trailer Tire with 13" Galvanized Wheel - 5 on 4-1/2 - Load Range D

Item # AM31994
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Kenda Tire with Wheel - AM31994
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Radial tire has a ply rating of 8 and a 1,610-lb maximum load at 65 psi. The 13" diameter x 4-1/2" wide steel trailer wheel features a 5 on 4-1/2 bolt pattern and a corrosion-resistant galvanized finish. Great Prices for the best trailer tires and wheels from Kenda. Karrier ST175/80R13 Radial Trailer Tire with 13" Galvanized Wheel - 5 on 4-1/2 - Load Range D part number AM31994 can be ordered online at or call 1-800-940-8924 for expert service.
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Kenda Trailer Tires and Wheels - AM31994

  • Tire with Wheel
  • 13 Inch
  • 5 on 4-1/2 Inch
  • 175/80-13
  • Load Range D
  • Steel Wheels - Galvanized
  • Boat Trailer Wheels
  • Radial Tire
  • M - 81 mph
  • Kenda

Radial tire has a ply rating of 8 and a 1,610-lb maximum load at 65 psi. The 13" diameter x 4-1/2" wide steel trailer wheel features a 5 on 4-1/2 bolt pattern and a corrosion-resistant galvanized finish.


  • Kenda Karrier special trailer radial tire
    • Special trailer tire design
      • Couples the strength of a bias tire with the durability and stability of a radial tire
      • Created specifically for trailers and not intended for use on other vehicles
    • Double steel belts and full nylon plies combine for superior function and long life
    • Computer-generated tread design and premium rubber-compound materials
      • Superior traction in wet or dry conditions
  • 8-Spoke steel wheel is galvanized to resists rust and corrosion
  • Tire-and-wheel assembly meets Department of Transportation specifications


  • Rim dimensions: 13" diameter x 4-1/2" wide
  • Bolt pattern: 5 on 4-1/2"
  • Wheel capacity: 1,660 lbs
  • Wheel bolt size: 1/2"-20
  • Pilot diameter: 3.19"
  • Offset: 0
  • Tire size: ST175/80R13
    • Section width: 7"
    • Outer diameter (when inflated): 24.1"
  • Tire capacity:
    • Load range: D
    • Ply rating: 8
    • Maximum load: 1,610 lbs at 65 psi
  • Maximum speed: 81 mph (speed rating M)
  • Warranty:
    • 5-Year on tire
    • Limited 2-year on wheel

1-Year Worry-Free Guarantee

This tire has a 1-year worry-free guarantee. If within the first 12 months the tire is damaged in any way, it will be replaced at no charge.

Radial Tires vs. Bias Tires

Radial tire vs bias tire graphic

Radial ply tires are designed for trailers that are towed on the highway. The cords on a radial tire are positioned at a 90-degree angle to the direction of travel so that they lay across the width of the tire from wheel lip to wheel lip. This construction prevents the cords from rubbing against one another when the tire flexes, unlike the cords on a bias ply tire. As a result, radial tires have less rolling resistance and heat buildup, which leads to a longer tread life and improved steering at higher speeds.

Determining the Bolt Pattern

The first number in the bolt pattern is the number of bolt holes. The second number denotes the diameter, in inches, of the circle on which the bolt holes sit.

Bolt Pattern - Odd

To determine the bolt-circle diameter on wheels with an odd number of bolt holes, measure from the center of any bolt hole to the point halfway between the two bolt holes directly across from the first. (Example: "5 on 4-1/2" means 5 bolt holes with 4-1/2" measured to a point halfway between the opposite bolt holes.)

Bolt Pattern - Even

On wheels with an even number of bolt holes, measure from the center of one bolt hole to the center of the hole directly across from it. (Example: "8 on 6-1/2" means 8 bolt holes with 6-1/2" from the center of one hole to the center of another on the opposite side.)

Bolt Pattern - Side

Measuring the distance from the center of one bolt hole on the wheel to the center of a bolt hole right next to it can also help to determine the bolt pattern.

  • If D = 2-5/8", then the bolt pattern is 5 on 4-1/2"
  • If D = 2-3/4", then the bolt pattern is 5 on 4-3/4"
  • If D = 3", then the bolt pattern is 5 on 5"
  • If D = 3-1/4", then the bolt pattern is 5 on 5-1/2"

31994 8-Spoke 13" Galvanized Wheel and Karrier KR03 Radial Tire - LR D

Customer Satisfaction Score:

Customer Reviews

Karrier ST175/80R13 Radial Trailer Tire with 13" Galvanized Wheel - 5 on 4-1/2 - Load Range D - AM31994

Average Customer Rating:  4.8 out of 5 stars   (5710 Customer Reviews)

Radial tire has a ply rating of 8 and a 1,610-lb maximum load at 65 psi. The 13" diameter x 4-1/2" wide steel trailer wheel features a 5 on 4-1/2 bolt pattern and a corrosion-resistant galvanized finish.


I couldn’t be happier with the wheels/tires I purchased. The galvanized finish is nice and shiny. They almost look polished. The tires felt great. Nice and smooth while towing up to 80mph. Had no issues at all on my trip. Huge thank you to Brent J who helped me purchase them, and provided excellent customer service.



We ended up selling this pop-up after about a year and upgraded to a 17’ hybrid camper. I purchased the same wheels and possibly the same tires in a 16” and they have been great as well. The welds weren’t as clean on the wheels this time, but they have functioned perfectly at a great price. I would definitely purchase again.


Just got my trailer tires mounted on galvanizing wheels. Incredible fast shipment and great packaging so that they arrived showroom perfect. The best part is that the eTrailer price was the best.



It has been a year and the wheels are still beautiful. The tires are wearing great and tow easy, even up to 80 mph I have the ticket to prove it.


I ordered these to place on my boat trailer. I used them on my 2012 Trailstar trailer which carries my Tracker bass boat. It had load range C tires. I wanted to upgrade my tires and this item was exactly what I wanted. These fit perfectly. The tires were “fresh”....meaning that they were made only a months ago. The finish on the rims was much better than I was expecting. The welds on the back side of the rims looks to me to be quality work.



It’s been a year and I have absolutely no complaints. I would definitely purchase these again.


First off, the tires are 2 years old! Second the wheel tire package are not balanced. You need to do better for the price.

Etrailer Expert

Jenny N.


Typically when we receive the tires in from the manufacturer they will be 18 to 24 months old. They are stored in controlled temperature warehouses and do not suffer from dry rot. They will still have a 5 year warranty on the tire against defect. It is true that trailer tires with rims do not come balanced. Since the tires are on a trailer it is less likely to feel the vibrations from unbalanced tires versus when you are in a passenger style vehicle. You can choose to have them balanced if you prefer. Remember that many trailer wheels are centered by the position of the lug bolts [these wheels are lug-centric] and not the center bore of the wheel. For best results, have them balanced using a pin plate adapter. This mimics the way a lug-centric wheel is mounted to a hub. If you have any other questions or concerns please let me know.


I purchased the tire and rim for a spare outfit for my boat trailer. I have not had to use it yet which is a good thing but it is the right size and it gives me the peace of mine that in case I need it I have the right one.


Look great. Higher load rating than my previous tires. We shall see



Excellent product. Good tire wear and very happy with load capacity


The tires I purchased work out great for my snowmobile trailer. They function and look great.


Tires look great, would have given 5 stars but the finish on the wheels are uneven kind of a stained look. One wheel is shinier than the other. Inner part of one wheel had a few chips in finish


Packed well, prompt delivery. Product looks to be quality. Smooth, easy transaction. I’ll be back for my other trailer needs.


Very satisfied with my new tires and ri ms.


Service was great and the price was right.The shipping was on time and I really like the way the tires ride.


Awesome quality! These are way better than what Wally World has on the shelf. Smooth as silk.


This is a spare for the kayak trailer built earlier this year. Same tires were purchased previously, and they work well! It's easy to find what I need on this site, quick delivery and lots of follow up by customer service after the purchase to ensure I'm satisfied.


fantastic as usual


Fast Delivery, Great price, and a fantastic selection of trailer tires. What a great experience.


Ordering was fast and simple.Delivery was prompt.



Tire and wheel are exactly what I needed.Used as spare tire only,so not yet put into service.


Great tires an wheels for a fair price.i got 2 and I going to order a spare.


These are really good tires and wheels. They really made my fishing rig look nice.


Great tire an wheel Adam E did a great job.


very happy with this tire & wheel having them come mounted and ready for installation also the galvanized rims give the appearance of chrome wheels also a plus


Worked out great using as spare


Karrier tires look perfect - a 5.0. One galvanized wheel coating looks a little sloppy on inside of rim, which will not be seen. Otherwise just fine. Delivery one day early and boxes in great shape. Overall a 4.8


Completely happy with the tires and wheels. Run em on my pontoon boat. Great buying experience and arrived on time, mounted and ready to install. Made several lake trips, including one trip to Lake Havasu in July. Tires held up in the hot summer and a 700 mile trip!!


My order was received ahead of schedule which was excellent. Perfect communication. The tires were excellent. The galvanizing isn't high quality from from 6 feet away it looks good. This is the best place to order parts for my pop up period.


I needed to replace the worn out tires on my flatbed utility trailer and had been concerned about the weight capacity of the load range C bias-ply tires that were installed by the local tire shop just after I bought the trailer - combined 2700 lbs on 3500 lbs axles, 5400 lbs total. A couple of times, I've had 4000 lbs of landscaping bricks from the home improvement store plus the 1300 lbs trailer weight rolling down the highway. With these load range D tires, the combined tire weight rating is now 6400 lbs. I'll gladly pay the extra few dollars per tire for the LR D's over the LR C's for that piece of mind plus these galvanized wheels look a lot better than the old white rusty wheels do.

Show More Reviews

See what our Experts say about this Kenda Trailer Tires and Wheels

  • Recommendation to Replace 155R13 Tires on Boat Trailer
    The 155Rx13 tire is an older size that's not used much at all anymore, which is why you're having so much trouble finding an exact replacement. Because of this your best option is to replace the tires with the closest current/modern trailer tire size available, which is a 175/80R13 model. A 175/80R13 trailer tire has an overall diameter/height of 24 inches and a width of 6.9 inches. This is about 1.2" taller and 0.8" wider than what you currently have. As long as you aren't already cutting...
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  • Difference In 4.80 x 8 Tire Size And 165/65 x 8 Tire Size on a 4 On 4 Bolt Pattern Wheel
    The bolt pattern on the wheel will be the same, the only difference is the size of the tires. The 4.80 x 8 tire size like the Kenda K371 Bias Trailer Tire, part # AM10004, is 16.1 inches tall and the overall width is 4.6 inches. The 165/65 x 8 tire size like the Loadstar K399 Bias Trailer Tire, part # AM1HP22, is 16.5 inches tall and the overall width is 6.6 inches. The 165/65 x 8 tire is 4/10 of an inch taller and 2 inches wider, so you would have to check your trailer to see if you...
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  • Drum and Hub Kit, Wheel, and Brake Assembly Recommendation for a 2009 Starcraft 2106
    I did some research and found that all of the hub and drum assemblies that would fit on your spindle would be 10 inches in diameter, and I also found that if you have a 10 drum you have to have at least a 13 inch rim, so you would need to upgrade to bigger wheels and tires also. The Trailer Hub & Drum Assembly, part # AKHD-545-35-EZ-K, that you referenced is the correct hub and drum assembly. For brake assemblies I would recommend a Galvanized 10 inch Marine Brake Assembly, part # 18788,...
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  • Can 175/80R13 Tires Be Replaced With 185/80R13 Tires?
    You will more than likely be able to replace the 175/80/13 tires on your Jayco X17Z with a 185/80/13 tire, but you will want to take a few measurements on your trailer just to confirm. The 175/80/13 tire like the # AM31994 is 7" wide and 24.1" tall where the 185/80/13 tire like the # AM10208 is 7.2" wide and 24.7" tall. You will just need to measure from the top of your current tires to the bottom of your fenders and make sure you have 2-1/2" - 3" clearance, and the measure from the inside...
    view full answer...
  • What Is Outside Diameter Of Kenda 13 Inch Tire/Wheel Combo
    The outside diameter of the Karrier ST175/80R13 Radial Trailer Tire with 13" Galvanized Wheel, part # AM31994 is 24.1 inches. This tire/wheel combo has a 13 inch diameter rim that is 4-1/2 inches wide, and a 5 on 4-1/2 bolt pattern. The pilot hole diameter is 3.19 inches. This is a Load Range D tire and has an 8 ply rating with a maximum load rating of 1,610 lbs at 65 psi.
    view full answer...
  • Can a Radial Tire by Used in Place of a Bias Trailer Tire, Size 175/80-13
    Yes, as long as the tires are the same size and you do not have to change the wheel you can use a radial or bias ply trailer tire in size 175/80-13. We currently carry 1 tire by itself that is a radial 175/80-13. It is # AM10210. It has a capacity of 1,610 pounds at 65 psi and will fit 13 by 4-1/2 inch rims or 15 by 5 inch rims. I recommend that you change out all of the tires at the same time. Radial tires tend to track better than bias tires.
    view full answer...
  • Recommended Replacement Tire for DK2 4x8 Folding Utility Trailer
    For a replacement tire for your DK2 utility trailer I recommend the Taskmaster 5.30R12 Radial Trailer Tire - Load Range C # TT53012C. This will be a direct replacement for your current tire which is also load range C with a maximum load of 1,050 lbs at 80 psi. It is a radial tire, which will be much better for highway use when compared to a bias ply tire. This tire will fit your existing wheels so there is no need to buy new wheels and has a maximum speed rating of 81 mph. The # AM31994...
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  • Replacement Tire Recommendation for Trailer with ST175/80R13 Tires that are Failing
    You always want to have your trailer tires inflated to their max PSI rating. There is no exception for this for tandem axle trailers. Typically trailer tires fail due to excessive heat created by overloading, exceeding the speed rating (typically 65 mph), or under-inflation. The most likely situation is that you are exceeding the speed rating and that is causing the failure since you are above the weight rating for 4 Load Range C tires. So I would recommend the Taskmaster Tire part #...
    view full answer...
  • Replacement Wheel and Tires for my Boat Trailer with the B78-13 Nanco Tires
    The Provider ST175/80R13 Radial Trailer Tire w/ 13" Vesper Silver Mod Wheel - 5 on 4-1/2 - Load Range C Item # TA73RR matches your need perfectly. It is also available in the load range D you mentioned with the Karrier ST175/80R13 Radial Trailer Tire with 13" Galvanized Wheel part # AM31994 please keep in mind these are the triangle holes rather than the round.
    view full answer...
  • Choosing Between Galvanized Trailer Wheels and Aluminum Trailer Wheels for a Boat Trailer
    In the galvanizing process, depending on how the manufacturer dries the wheels some of it can pool on one side due to the dipping processed used. That is an issue you are going to run into with many wheel manufacturers. It is an ongoing issue. What I recommend is to go with an aluminum wheel and tire combo like # AM32001HWTB or # AM31245. You pay a little more, but you still get excellent corrosion resistance, style, and none of the issues associated with galvanized wheels.
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  • Can 12 Inch Trailer Tires and Wheels be Replaced with 13 Inch
    The smallest diameter 13 inch trailer wheel and tire will have a diameter of 24.1 inches (ST175/80-13). There are 3 common 12 inch trailer tire sizes: 4.80-12 has a diameter of 20.5 inches, 5.30-12 has a diameter of 21.9 inches, and 145/80-12 has a diameter of 21.3 inches. So basically the overall difference between the two sizes, depending on the specific 12 inch size, is between 2.2 inches and 3.6 inches. Half of the difference applies to the bottom of the tire from the center of the...
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  • What is the Weight of the Kenda Karrier ST175/80R13 LR-D with a Galvanized Steel Wheel
    Most wheels and tire combos of this size will weigh roughly the same, but it mostly depends on the wheel. The # AM31994 you were looking at has a galvanized steel wheel and weighs roughly 31-lbs. This is a Load Range D tire. Similarly, the Karrier ST175/80R13 Radial Trailer Tire with 13" Galvanized Wheel - 5 on 4-1/2 - Load Range C # AM31952 weighs 30-lbs, so there's only about a 1-lb difference.
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  • Trailer Tire and Wheel Recommendation for Boat Trailer Needing B78-13 Mounted on 4 Lug Wheels
    The modern tire size equivalent to B78-13 is the size 175/80-13 which we do carry mounted on a rim with a 4 on 4 inch bolt pattern. For that we have the Loadstar ST175/80R13 mounted on galvanized wheel part # AM3S130 which would be a great option. The tire has a capacity of 1,360-lb maximum load at 50 psi and an 81 mph speed rating.
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  • Speed Rating and Tire Pressure Recommendation On a ST175/80-13 Tire
    The speed rating on all special trailer tires (ST) is 65 miles per hour. It is not recommended to run a trailer tire at a higher speed than 65 miles per hour due to the heat buildup that will occur inside the tire and cause the tire to break down and cause the tire to fail. Special trailer (ST) tires should be inflated to the maximum air pressure that is stamped on the sidewall of the tire. It will be stamped with a designation of maximum load at a maximum psi. On a ST175/80-13 tire...
    view full answer...
  • How to Pick Out Trailer Wheels and Tires
    We don't have anyway to look up the tire size of your trailer. I'd need you to get me the tire size stamped on the sidewall of the trailer and the wheel bolt pattern of your current wheels. I attached a help article that covers determining bolt pattern for you to check out as well.
    view full answer...
  • Can You Increase Tire Size To a 175/80R13 Trailer Tire On a Fleetwood Taos Popup Camper
    To determine if you will be able to change from the 5.30-12 Trailer Tire # AM30859 to a ST175/80R13 Radial Trailer Tire # AM31994 you will need to measure your tire clearance on your Fleetwood Taos. The 175/80R13 is 2.1" taller and 1.5" wider than your 5.30-12 you currently have. So you will want to ensure you have 1-3/4" of space on your sidewalls and 4.1" of vertical clearance on the tread face. This will ensure that you have enough room for the suspension to flex and the sidewall will...
    view full answer...
  • Replacement Tire and Wheel Recommendation for 185/80-13 Tires on a Dual Axle Boat Trailer
    The Karrier ST175/80R13 Radial Trailer Tire with 13" Galvanized Wheel # AM31994 will work if the 1,610 lbs at 65 psi weight rating (per tire) is enough for your boat and trailer. This gives you a total weight capacity of 6,440 lbs. If you need a bit more then we actually do have 185/80-13 size tires so something like the Loadstar ST185/80D13 Bias Trailer Tire with 13" Galvanized Wheel # AM3S334 would give you a slightly higher weight capacity at 1,710 lbs at 65 psi (for a total of 6,840...
    view full answer...
  • Can a Smaller Tire be Used With Snowmobile Trailer?
    The ST205/75R14 tires you have are designed to fit on 14" wheels, and there are no tires which would be shorter you could use on 14" wheels. What you would need to do instead is get a new wheel and tire combination that would allow you to use a smaller tire but still have the right load capacity. To do that you would need to know your wheel's bolt pattern; I've added a link to a help article which details how to determine your bolt pattern. If you have a 5 on 4-1/2 bolt pattern, which...
    view full answer...
    Image 1 for
  • Highest Capacity 175/80-13 Radial Tires for Boat Trailer
    The highest rated 175/80-13 tire we offer is the Kenda # AM10210. This is a Load Range D tire with a 1610lb/tire weight capacity which would give you a 3220 lb capacity. If your current wheel is 4-1/2, 5 or 5-1/2 inches wide, the tire would mount on your existing wheel just fine. If your hubs have a 5 on 4-1/2 inch bolt pattern, we also offer that particular tire mounted on a galvanized wheel as part # AM31994. Keep in mind that your trailer's capacity will be limited to the capacity...
    view full answer...
  • Recommended Radial Tire for 13" Galvanized Wheel with 5 on 4-1/2" Bolt Pattern
    The Kenda Karrier ST185/80R13 Radial Trailer Tire # AM10208 comes as a tire only, as you've noticed. We don't mount them here but we get them from the manufacturer this way so we don't really have a say in what they offer as pre-mounted or not. For your application I recommend checking out the Karrier ST175/80R13 Radial Trailer Tire with 13" Galvanized Wheel # AM31994 instead. This gives you the radial tire style you're wanting with a galvanized wheel that has the 5 on 4-1/2" bolt pattern....
    view full answer...
  • Upgrading Wheels and Tires on a Detail K2 Mighty Multi A-Frame Utility Trailer
    The Detail K2 Mighty Multi A-Frame item # K2MMT5X7 trailers do not leave much space between the top of the wheel and the inside of the fender. You would have to either remove your fenders or move them up. I can confirm that both the Karrier ST175/80R13 Radial Trailer Tire with 13" Galvanized Wheel - 5 on 4-1/2 - Load Range D item # AM31994 and the Kenda Karrier ST175/80R13 Radial Trailer Tire with 13" Black Mod Wheel - 5 on 4-1/2 - LR D item # AM31990 will fit the hubs on the K2 Trailer.
    view full answer...
  • Will Switching From 205/65-10 Tire to a 13 Inch Tire Raise a Tritoon Trailer
    Switching from a tire like the Loadstar 205/65-10 # AM1HP56 to the Karrier ST175/80R13 Radial Trailer Tire with 13" Galvanized Wheel - 5 on 4-1/2 - Load Range D # AM31994 will definitely raise your trailer. Your current tire has an outer diameter of 20.4" and the # AM31994 has an outer diameter of 24.1". With a difference of 3.7" you will gain an additional 1.85" of height. The only issue you may run into here is clearance. You won't have a problem on the sides since the width is actually...
    view full answer...
  • Availability of 13 inch Trailer Tire and Wheel in Shortest Diameter
    The shortest diameter 13 inch trailer tire size we offer is 175/80R13 which we offer mounted on wheels with either a 5 on 4-1/2 inch bolt pattern like the part # AM31994 or with a 4 on 4 inch bolt pattern like part # AM3S040. The diameter of the tire is 24.1 inch.
    view full answer...
  • ST Tire Specs For F65-14 and Compatibility Recommendation
    The F65-14 tire is the ST205/65D14 tire and the closest we have is the 205/75-14 size you referenced. That tire is 26.3 inches diameter and 8.1 inches wide. My recommendation for that size tire is the Karrier ST205/75R14 Radial Trailer Tire - Load Range D # AM10235. This tire is rated for 2,200 lbs at 75 psi and speeds up to 81 mph. I've attached a video to assist. This may require adjusting your fenders as you stated. If you need smaller tires you will need to drop to 13 inch...
    view full answer...

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