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Provider ST225/75R15 Radial Trailer Tire - Load Range D

Provider ST225/75R15 Radial Trailer Tire - Load Range D

Item # TTWTRTM2257515D
Our Price: $126.24
You Save: $12.02
Trailer Tires and Wheels
This item qualifies for Free Shipping
Shipping Weight: 30 lbs
TTWTRTM2257515D - Radial Tire Taskmaster Trailer Tires and Wheels
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Radial special trailer tire with automotive-grade tread has a ply rating of 8 and a 2,540-lb max load at 65 psi. Constructed of double steel belts and double polyester cords with a nylon overlay. Great for highway use. Fits 15" wheels. Great Prices for the best trailer tires and wheels from Taskmaster. Provider ST225/75R15 Radial Trailer Tire - Load Range D part number TTWTRTM2257515D can be ordered online at or call 1-800-940-8924 for expert service.
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Taskmaster Trailer Tires and Wheels - TTWTRTM2257515D

  • Tire Only
  • 15 Inch
  • 225/75-15
  • Load Range D
  • Radial Tire
  • M - 81 mph
  • Taskmaster

Radial special trailer tire with automotive-grade tread has a ply rating of 8 and a 2,540-lb max load at 65 psi. Constructed of double steel belts and double polyester cords with a nylon overlay. Great for highway use. Fits 15" wheels.


  • Radial tire is constructed with double steel belts and double polyester cords for a long life
    • Great for highway use
    • Nylon tread-firming belt overlays help prevent tread separation
    • Tread depth bars offer a quick visual indicator of tread wear
    • Bake tested to ensure that the rubber holds over time
  • Automotive-grade tread has sipes that channel water away from the tire to improve traction during wet, snowy, or icy conditions
  • Special trailer (ST) tire has sturdy sidewalls so that it can handle heavy loads
    • Created specifically for trailers and not intended for use on other vehicles
  • Meets DOT specifications and exceeds FMVSS


  • Tire size: ST225/75R15
    • Section width: 8.78"
    • Outer diameter (when inflated): 28.31"
  • Capacity:
    • Load range: D
    • Ply rating: 8
    • Maximum load: 2,540 lbs at 65 psi
  • Tread depth: 10/32"
  • Maximum speed: 81 mph (speed rating M)
  • 2-Year limited warranty

Provider Radials with Automotive-Grade Tread

Provider Tread Vs Standard Tread

Unlike standard trailer tire tread, which has solid, continuous ribs, the automotive-grade tread on these Provider radials has ribs with breaks. These breaks allow water to run off to the sides. The Provider tread also has sipes. Siping is a process in which thin grooves (or sipes) are cut into the rubber of the tire. The grooves channel water away from the tread so that the tire makes better contact with the road. Both of these features greatly improve traction during wet, snowy, or icy conditions.

Provider radials are constructed with double polyester cords and double steel belts for increased durability and endurance. A protective layer of nylon is wrapped around the steel belts to help prevent tread separation. Provider radials are bake tested - a process usually reserved for automotive tires - to ensure that the rubber holds up over time.

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.

TR22515 Taskmaster Provider ST225/75R15 Radial Tire - LR D

Replaces TRTM2257515D and TR2257515D

Customer Reviews

Provider ST225/75R15 Radial Trailer Tire - Load Range D - TTWTRTM2257515D

Average Customer Rating:  4.9 out of 5 stars   (916 Customer Reviews)

Radial special trailer tire with automotive-grade tread has a ply rating of 8 and a 2,540-lb max load at 65 psi. Constructed of double steel belts and double polyester cords with a nylon overlay. Great for highway use. Fits 15" wheels.


I am very pleased with the Provider ST225/75R15 radial tires purchased from etrailer. They were ordered on 1/7/19 and amazingly delivered on 1/8/19. I just had the bearings repacked and the tires mounted on my 2017 Venture Sonic Lite. The ride is extremely smooth. I am looking forward to getting out on the highway for the first trip of the year! Thanks, etrailer, for selling quality tires at a great price!

Throughout the first year of traveling with the Provider ST22575R15 mounted on my travel trailer, I have been impressed with the performance of the tires in wet or dry road conditions and the lack of tread wear. When the time finally comes to get new tires, I will once again purchase the Providers.
Carl P - 01/16/2020


Excellent and fast service best product and speedy delivery best agent ever which is Sherry which really knows her job. Always good job!! thanks


Etrailer sells quality products. Tires were shipped fast, each was individually boxed. Great quality, no concerns. Would buy anything from etrailer with confidence.


Nice tread and upgrade over 205/75s. Was able to use same rim as well.


I thought the tires were as advertised and had no problem with delivery or
quality. These are used on my sixteen foot utility trailer hauling loads of hay, about
6,000 lbs No problems. Installed them on the wheels myself with my hand tire changer. Worked great..

Thank you,


Tires are still doing great . No problems with heavy hay loads..
Ken W - 03/11/2018




Odelia was awesome. Service was friendly and fantastic This is not the first time that Odelia assisted me in not only product selection , but assurance in delivery to support my trailer repair efforts. I am very pleased with etrailer. First rate all the way! Thank you all.


Speedy service from etrailer is standard. The tires arrived boxed & in perfect condition.
The super service is more than you can ask for, last year I had a blowout on the road and would be passing buy etrailer on Sunday. I was met at the door with a spare tire.
That's why I buy here.
The tires look good on, but not trailered yet.


I have purchased four of the TTWTRTM2257515D and really like the looks of the tires. The employees are super and I will continue to do business with them. These tires that i purchased replaced cracked tires that was on my RV.


After one year and about 8,000 miles, I've been very happy with these tires on my travel trailer. They have a higher speed and load rating than the Goodyear Marathons that I had before and these seem to ride quite smoothly.


I like the quick turn around from ordering to the product being delivered to my doorstep. In addition I was more than pleased to see how durable and tread depth of the tires ordered for my Travel Trailer


I have purchased several products from Etrailer in the past & found their products and service to be very good. I recently ripped a sidewall on one of my dump trailer tires running over something at our local landfill. I found an EXACT replacement tire at Etrailer for a good price, free shipping, & fast delivery. I expect this tire to perform as well as the original tires that came with my dump trailer (in service 4 years, no problems) as it is an exact match.


etrailer provided excellent service. When it was determined that the tire I selected was not in stock, they offered me an upgrade to D range tire at no additional cost. Shipping was fast and I received my tires within a few days.


We put 4 taskmaster tires on a tandem trailer and they have been very good. They are of good quality and wear evenly. The white spoke wheels we purchased worked well with the new tires Thanks


Really glad to get my new set of trailer tires today. As always my order was shipped quickly and accurately. I always appreciate your how to videos. Came in handy when I replaced the wheel bearings.


NOTE: Be sure to check the tire speed ratings!
was about to order a cheaper tire and happened to notice that it had a lower speed rating. Ordered these for our single Axle Malibu boat trailer and they seem to be working great. Excellent service from etrailer too! Thanks!


Ordered trailer tires on line process was simple and they arrived sooner than expected. I also saved quite a bit of money. Great doing business with etrailer would recommend them to any one looking for tires.


Great tires, I tow my trailer a lot and after one year of driving on this tires, they still look almost new. I will buy them again for sure.

I'm very happy with the tires ans also with etrailer for the great customer service.

Angel M.


Like for like replacement tires on my trailer! My current set of tires have been all over the south east and have been a great set. Tire wear is minimal and good traction in all weather conditions. Etrailer provided a reasonable price, easy ordering and super fast shipping! I would definitely buy from them again! I Highly recommend both the tires and Etrailer!


Ties have over 20k miles and still look new. They are heavy duty high weight rated and I feel safe pulling trailer over 70 for long distances. I would highly recommend.


Bought because of the previous reviews. Fast shipping of the tires. I just had the tires mounted and balanced but haven't used the 5th wheel yet. Tires look great with a nice tread pattern. Time will tell.


product was what I needed, delivery was on time, and the customer support has been exceptional!


Trailer Tires appear to be a good product at the right price (etrailer's price pledge was very helpful in keeping me from purchasing from the local big box store). Delivered in a timely fashion allowing me to get the trailer back on the road in no time. Expect these will last a good long time


I received the radial trailer tires I ordered. Impressed with sidewall construction of the 8 ply tires. Hard to compress unmounted . Good sign. Just over $100 apiece and worth every dime.


Always pleased with the turn around time from ETrailer.
Ordered my tires a couples of days ago and bam here they are waiting for me when I got home today. Thanks for keeping my rig on the road! You guys are awesome

Show More Reviews

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

  • Comparing Modular and Spoke Wheels, Radial and Bias Tires, and Different Load Ranges
    The difference between modular and spoke wheels is the appearance. In different parts of the country one will be more popular than the other. That is really the only difference. For highway use I recommend radial tires. Radial tires run cooler and track better than bias ply tires. Bias ply tires are better for non-paved roads. Going from a D to an E load range means that the ply rating will be higher on the E thus it will be a little stronger. It will not increase the weight capacity...
    view full answer...
  • Purpose of Yellow and Red Dots on Trailer Tires
    The tire should be mounted so the yellow dot is next to the valve stem. The yellow dot indicates the low, or lightest point of the tire. It's placed next to the valve stem because the valve stem adds weight, so aligning these two points helps make the tire more balanced. The red dot indicates the high or heaviest spot of the tire. There is no particular spot on the tire where the red spot should go. Because trailers don't have steer axles, it's not as crucial that trailer tires be balanced...
    view full answer...
  • Could P195/65R15 Tire be Used on Trailer Wheel that ST225/75-15 Was Installed On
    While physically possible you should never run a tire size that starts with the letter P on a trailer as it was not intended for use on a trailer. It was designed for a passenger vehicle which is a totally different application. You really need to stick with an ST tire like the Provider part # TTWTRTM2257515D which will fit your rim and will give you a safe tire to use on a trailer!
    view full answer...
  • Difference Between ST225/75D15 and ST225/75R15 Trailer Tire
    The "D" designation that you see on the ST225/75-15 tires for your travel trailer indicate a bias ply tire, as opposed to the radial ply tires on your cargo trailer. The primary difference between bias and radial tires is how they're actually constructed, and more specifically the way that the cords run inside the tire. On a bias tire the cords run at a 32 degree angle at the direction of travel while the cords of a radial tire run at a 90 degree angle to the direction of travel. This...
    view full answer...
  • Matching Contender Trailer Tire in Size 225/75R15 with 108M and 8RR on Sidewall
    I believe the correct matching tire you are in need of is the Provider part # TTWTRTM2257515D. This is an exact match to the numbers you mentioned so this would work great as a spare.
    view full answer...
  • Recommended 225/75-15 Tires for 11,000 Lb GVWR 5th Wheel Trailer
    The Provider ST225/75R15 Radial Trailer Tire part # TTWTRTM2257515D is a great option, one of the best we offer in this size. They have a very high 81 mph speed rating and come with a two-year warranty. In regard to weight, you will be just fine for an 11,000 GVWR. Please note, the total weight capacity of the tires will almost never meet the GVWR of the trailer due to the tongue being supported by the vehicle which is usually 10-15% of the total trailer's weight.
    view full answer...
  • Why Choose Radial Tires Instead of Bias Ply Tires
    For highway driving radials like the item # TTWTRTM2257515D that you referenced are usually preferred because radials have more flex in the sidewalls which gives them excellent traction on paved roads. For off-road driving or driving on rough surfaces a bias ply tire is often preferred because it has stiffer sidewalls that will hold up better to the uneven surfaces. As far as the weight Load Range goes you can always select the appropriate size tire with a higher weight capacity if one...
    view full answer...
  • Replacement for 225/75-15 Trailer Tires
    The Provider ST225/75R15 Radial Trailer Tire part # TTWTRTM2257515D is what I recommend for a replacement trailer tire. It has radial plies which are better for long highway trips, an 81 mph speed rating, and comes with a two year warranty.
    view full answer...
  • What PSI Should Trailer Tires Be Filled To When Tire and Info Tag On Trailer Are Different
    Trailer tires such as the Provider ST225/75R15 Radial Trailer Tire part # TTWTRTM2257515D should be inflated to the max psi listed on the sidewall while the tire is cold. If a different set of tires have been installed on the trailer, then this may contradict any info tags on the trailer but regardless, you'll need to fill the tires to the psi rating on the sidewall of the tire.
    view full answer...
  • Recommended Trailer Tire Replacement for BR-78-15 Tires
    The BR-78-15 tires are an older tire size designation. Stated in modern terms, the size would be ST225/75-15 so I recommend the Provider ST225/75R15 Radial Trailer Tire - Load Range D # TTWTRTM2257515D. This tire is rated for 2,540 lbs at 65 psi and speeds up to 81 mph. It has automotive grade sipes to help with traction in wet or snowy conditions. The radial tires will work much better than your older tires because they will distribute heat better which will give them a longer lifespan.
    view full answer...
  • Recommended ST225/75R15 Trailer Tires for 10,000 lb Trailer
    Tires are one of the things that are overlooked quite a bit so upgrading to a high-quality set of tires is a really good idea as they will not only help your trailer's suspension stay in good shape but also help ensure safe traveling. So for your 5th wheel trailer with a 10,000 lb GVWR the ST225/75R15 trailer tires I highly recommend are the Provider ST225/75R15 Radial Trailer Tire # TTWTRTM2257515D. These are load range D tires with a capacity of 2,540 lbs per tire, which is enough because...
    view full answer...
  • Trailer Tire Size to Replace P205/70R15 on Utility Trailer
    Since your tire size starts with the letter P you have a passenger vehicle tire on your trailer which is not ideal since it's not rated for the vertical loads that trailers have. You want a tire size that starts with ST like the ST225/75R15 # TTWTRTM2257515D. This has the size and Load Range you want plus it has an 81 MPH speed rating which is great considering most trailer tires are only rated for 65 MPH. I attached a review video as well.
    view full answer...
  • Trailer Tire Recommendation to Replace a ST205/75R15
    I have a better solution for you than the tire you referenced. The part # TTWTRTM2057515C is the exact same size as what you have and is also a radial tire. The # TTWTRTM2257515D would be a bit larger than what you currently have and has the less preferred bia-ply construction. The main difference between a radial ply and a bias ply tire is how the tire is constructed. The cords inside a bias ply tire run at a 32 degree angle to the direction of travel, and the cords on a radial tire...
    view full answer...
    Image 1 for
  • Recommended Replacement Trailer Tire for Provider ST225/75R15
    Provider is the OEM brand name for Taskmaster tires and the ST225/75R15 radial that matches is part # TTWTRTM2257515D. This tire carries a Load Range D weight rating of 2,540-lbs at 65-psi cold inflation pressure. You are wise to match up all the tires on your trailer. It is not a good safety practice to mix types or sizes of tires on a trailer. Trailer tires should always be inflated to the maximum pressure as noted on the tire sidewall.
    view full answer...
  • What is the Speed Rating for ST225/75R15 Tire with Load Range D
    Most trailer tires do have a maximum speed rating of 65 mph unless otherwise indicated on the tire. I do not recommend exceeding a trailer tire's speed limit because this can lead to excessive heat on the tire, which is the most common cause for failure. The speed rating is not really related to its Load Range but simply specific to the particular model tire you are looking at (not all Load Range D tires have the same speed rating). For example, we do actually have the Provider ST225/75R15...
    view full answer...
  • Replacement Tire For 8.25-15 or H-78 15 Trailer Tires
    The suitable replacement for H-78 tires would be the tire size 225/75-15 which is 1.3 inches different in diameter from the 205/75-15 tires. I suppose you could get away with the 205/75-15 to get by in an emergency or temporary situation. However, my recommendation of a tire such as Provider ST225/75R15 Radial Trailer Tire # TTWTRTM2257515D will give you piece of mind. The maximum speed rating is 81 mph (speed rating M).
    view full answer...
  • Recommendation to Replace B78-15 Tires on Older Boat Trailer
    The B78-15 tire size you mentioned having on your trailer is an older tire size. The metric equivalent to this size is a 225/75-15 tire like the Provider Radial Trailer Tire # TTWTRTM2257515D. This tire has an overall diameter when inflated of 28.31 inches and a section width of 8.78 inches. It features a maximum load of 2,540 pounds at 65 psi and an excellent speed rating of 81 mph. It will fit 15 inch wheels with a width of 6 inches, 6-1/2 inches, or 7 inches. I have attached a short...
    view full answer...
  • Trailer Tire Recommendation for Size ST225/75-15 to Replace P235/75-15
    No that would not be a good idea at all. You have to run the same size tires on all wheels of your trailer, and you have to make sure those tires are rated for trailer use. Passenger vehicle tires cannot be used on a trailer. We have the Provider trailer tire part # TTWTRTM2257515D which would work well for you as it is an ST225/75R15 like what your trailer has on the driver side.
    view full answer...
  • Replacement Tires for Trailer with Size 255/75-15 Passenger Tires
    You are on the right track getting rid of the car tires for trailer tires. Car tires aren't designed for the vertical load that trailer tires are and are more designed for vehicles with a steering axle. The closest tire size we have to what you currently have is 225/75-15 like the part # TTWTRTM2257515D which would be a great option. The difference between the D and R in the tire size is the construction of it. D means bias-ply and R means radial which is the preferred construction. The...
    view full answer...
  • What Tire Pressure Should Trailer Tires be Inflated to on Coleman Travel Trailer
    Trailer tires should always be inflated to the maximum cold psi as listed on the tire's sidewall, regardless of the trailer's weight. Under-inflating a trailer tire can potentially lower its capacity and performance. So for the ST225/75R15 tires on your Coleman Travel Trailer, you will want to make sure they are always inflated to the 65 max psi that you mentioned in your question, whether the trailer is completely empty or fully loaded. This psi number falls right in line with the ST225/75R15...
    view full answer...
  • Trailer Tire Replacement for Size 8.55-15ST
    From the research I did on your tire size of 8.55-15ST that would indicate that the modern tire size equivalent is ST225/75R15 which is a very common tire size. The Provider trailer tire part # TTWTRTM2257515D is a great option for that size. It has a higher speed rating than most trailer tires at 81 MPH and is also priced great.
    view full answer...
  • Trailer Tire Recommendation for Load Range D 225/75R15
    There's no reason you couldn't go to a Load Range D 225/75R15 over a Load Range C. I'd go with the part # TTWTRTM2257515D which has a weight capacity of 2,540-lb maximum load at 65 psi and has a speed rating of 81 mph. To get the full capacity of this tire you will need to be sure you keep the tire inflated to 65 psi at all times.
    view full answer...
  • Operating Pressure and Temperature for Travel Trailer Tires
    Trailer tires always indicate their rated psi-pressure on the sidewall. Trailer tires should ALWAYS be inflated to this COLD psi rating under all conditions. It is never appropriate to under- or over-inflate a trailer tire for any reason, such as to compensate for extremes of temperature. Any inflation pressure other than the rated maximum will tend to lead to the tire overheating, and overheating is the single most-common cause for trailer tire failure. The tire you referenced, part #...
    view full answer...
  • Trailer Tire Pressure Recommendation for Size ST225/75-15 Load Range D
    For trailer tires you want to inflate them to the max tire pressure rating that is on the sidewall of the tire. All of the tires we have in the size ST225/75R15 like the part # TTWTRTM2257515D should be inflated to 65 psi.
    view full answer...

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