Dexstar Steel Spoke Trailer Wheel - 12" x 4" Rim - 5 on 4-1/2 - White Powder Coat

Dexstar Steel Spoke Trailer Wheel - 12" x 4" Rim - 5 on 4-1/2 - White Powder Coat

Item # AM20132

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Dexstar Tires and Wheels - AM20132
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Product Images


  • Wheel Only
  • 12 Inch
  • 5 on 4-1/2 Inch
  • Steel Wheels - Powder Coat
  • Dexstar
  • Standard Rust Resistance
White power coated, 12" steel wheel features a 5 on 4-1/2 bolt pattern and meets Department of Transportation standards. Lowest Prices for the best tires and wheels from Dexstar. Dexstar Steel Spoke Trailer Wheel - 12" x 4" Rim - 5 on 4-1/2 - White Powder Coat part number AM20132 can be ordered online at or call 800-298-8924 for expert service.

  • All Info
  • Reviews (8)
  • Q & A (15)
  • Videos (1)
  • Photos
  • Why etrailer?

Dexstar Tires and Wheels - AM20132

White power coated, 12" steel wheel features a 5 on 4-1/2 bolt pattern and meets Department of Transportation standards.


  • Sturdy steel construction
  • Excellent corrosion resistance
    • White powder coat finish over e-coat primer
  • 8-Spoke pattern
  • High-quality wheel meets DOT specifications
  • Made in the USA


  • Rim dimensions: 12" diameter x 4" wide
  • Bolt pattern: 5 on 4-1/2"
  • Wheel bolt size: 1/2"-20
  • Pilot diameter: 3.19"
  • Capacity: 1,250 lbs
  • Limited 2-year warranty

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"

20132DX Dexstar 8-Spoke White Wheel - 12"


Video of Dexstar Steel Spoke Trailer Wheel - 12" x 4" Rim - 5 on 4-1/2 - White Powder Coat

Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.

Video Transcript for Dexstar Tires and Wheels - Wheel Only - AM20132 Review

Today we are going to review Part number AM20132. This is the Dexstar 12 inch by 4 inch white 8 spoke steel trailer wheel with the 5 on 4 and a half inch bolt pattern. Now this wheel is a sturdy steel construction, has a nice powder coat finish over an 8-coat primer for excellent corrosion resistance on the front and even the back of the wheel. As you can see it's a standard 8 spoke pattern. This is a high quality wheel. It meets the Department of Transportation's specifications and this wheel is made by Dexstar. It is made in the USA. A few specs on this: The diameter of this wheel, we are going to measure.

It's measured from inside to inside. If we take a tape measure and put it on inside to inside, you can see 12 inch diameter. And the width is the same way, you'll measure inside to inside or bead seat to bead seat, 4 inches. So 12 inches to 4 inches. Now the bolt pattern on this wheel is a 5 on 4 and a half inch bolt pattern. Now if you want to measure that on a wheel that's an odd number of lugs, in this case 5, what you do is just pick any lug hole, we'll pick that one, and then we'll measure across to any of these holes right across from it, so we'll go to this one.

What you want to do is measure from the starting hole, the center of the starting hole to the furthest edge of the hole you go to. So if we take a tape measure, center to furthest side, you can see it's 4 and 1/2 inches. So 5 on 4 and a half bolt pattern. It does use a wheel lug size of a half inch by 20. Pilot hole diameter, which is the large hole in the center of the wheel here, this goes over the hub in your trailer. Diameter of that opening is 3.19 inches.

And the weight capacity of this wheel is 1,250 pounds. But that should do it on part number AM20132. This is the Dexstar 12 inch by 4 inch white 8 spoke steel trailer wheel with the 5 on 4 and a half inch bolt pattern.

Customer Reviews

Dexstar Steel Spoke Trailer Wheel - 12" x 4" Rim - 5 on 4-1/2 - White Powder Coat - AM20132

Average Customer Rating:  5.0 out of 5 stars   (8 Customer Reviews)

White power coated, 12" steel wheel features a 5 on 4-1/2 bolt pattern and meets Department of Transportation standards.

- AM20132

I recently received my order from e-trailer. I ordered a Dexstar wheel, a pair of Kenda tires, a chrome when center cap, lug nuts and screw in studs. I read all the pertinent info supplied as well as check exactly the brands, sizes etc of the parts I was replacing. I was notified by email (from Phyllis) the day following the order placement that their was a shipment delay of the tires, I was supplied with equivalent tire replacements which could have been supplied to keep the order on time or wait a week and get exactly what I originally ordered. I waited and received everything faster then I thought it would have taken. Phyllis kept me updated every couple days on the order progress- so nice! I was a little unsure if the screw in studs would fit but ordered what seemed to be the best match (had to start somewhere & figured I could return if no fit) and studs and lugs fit as stock- exact matches. This was my 2nd order in two years and have had great customer service and better then stock replacement parts, certainly all for a cheaper price then I could ever find in NW Montana! Thank You all at e-trailer! 707542

- AM20132

Great Service, timely processing and delivery, no hassle, Very helpful. I will shop with them every time i have the chance to do so. 479708

- AM20132

Needed a spare for my SeaDoo trailer. Also got a bracket to mount it on the tongue of the trailer. Etrailer had want I wanted, great service (price and shipping) - cannot wait to get them mounted up and ready to go. High fives all around! 234887

- AM20132

Products were as described , the staff was very respectful and helpful ! The turnaround for shipping was great... Will purchase from you guys again when necessary. Website is very easy to follow and product description as well. Thanks for all your help. Eric 215680

- AM20132

everything ordered was great. fast service thanks 167989

- AM20132

Product is just as described! Shipping time was faster than quoted! I have recommended this site to not my best friend and to my father who are both in need of new wheel/tire combos. I will do business with again! 165926

- AM20132

the on site catalog was very easy to use and good details of products. we were able to find just what we needed fast. very fast delivery, and communication with company was a refreshing plus of the company. thank you etrailer. 147363

- AM20132

The wheels looked fine, I haven't had them on the highway yet. Etrailers customer service before the sale was excellent and the FAQs on the site are very helpful. Shipping was really quick too. I learned a lot about axles, hubs and wheels while rebuilding an old Dilley trailer and converting to haul three 17 foot sea kayaks and camping associated camping gear. 60483


Ask the Experts about this Dexstar Tires and Wheels

Do you have a question about this Tires and Wheel?

  • Are 8-Inch Trailer Wheels Available with 3.19-Inch Pilot Hole
  • The Americana White 8 x 3-3/4 Steel Trailer Wheel # AM20006 has a 2.81-inch pilot hole, like the galvanized version # AM20008. None of our 8-inch trailer wheels has a 3.19-inch pilot hole. For that size pilot hole you will need to select at least a 12-inch diameter wheel like # AM20132.
    view full answer...

  • Trailer Wheel and Tire Recommendation for Pull Behind Camper with 2200 Lb Axle with 5 Bolt Pattern
  • I did some calculations and came up with two ST (special trailer) tires, one slightly larger and one slightly smaller than your 165/80R13 tire, which is 23.4 inches diameter. The slightly larger tire, Karrier ST175/80R13 Radial Trailer Tire, item # AM31985, is 24.1 inches diameter, has a 13 inch wheel with 5 on 4-1/2 inch bolt pattern and maximum load of 1,360 lbs at 50 psi. The slightly smaller tire, Karrier ST145/80R12 Radial Trailer Tire, item # AM10130, is 21.3 inches diameter,...
    view full answer...

  • Replacement Tire And Wheel Options For 12 Ft Pop-Up Camper
  • Radial tires would work well on the highway. A radial tire flexes more than a bias tire, giving it better ground contact, traction, stability, and tread wear. A bias ply tire has a stiffer sidewall than a radial, a feature that might be useful for off road applications like farm use. We offer 12 inch radial tire/wheel combos that would work for you. You will need to know the bolt pattern to make sure you get the correct combos. I have attached a helpful article that explains how to...
    view full answer...

  • Trailer Tires or Tire and Wheels to Replace A78-13ST Tires on a ShoreLander Trailer
  • The modern equivalent of the A78-13ST is ST175/80-13. Since that size will not work for you the only option is to go to a 12 inch tire and wheel. The other places must have only had a limited selection because you can get a 145/80-12 with a capacity as high as 1,520 pounds. If the trailer has a 4 on 4 bolt pattern, see link on how to determine bolt pattern, then you can use tire and wheel combo # AM31208. This is a radial tire on an aluminum wheel so it would be excellent for marine...
    view full answer...

  • Recommended Axle With 5 On 4-1/2 Bolt Pattern Idler Hubs And Wheels
  • I contacted Harbor Freight's tech services line regarding your Haul Master Trailer. Your trailer may have an odd size axle, so the industry standard size parts would not be compatible. Their tech services can't give me the information to help you, so I would need you to pull your hub and give me the bearing number on it for me to tell you if we can change the hubs out for 5 lug or not.
    view full answer...

  • Will 5.30-12 Tire Fit on Same Wheel as 4.80-12 Size
  • Both tire sizes you mentioned of 4.80-12 and 5.30-12 fit the same size wheel of 12 inch diameter by 4 inches wide like the part # AM20132 for a wheel with a 5 bolt pattern or part # AM20122 for a wheel with a 4 bolt pattern.
    view full answer...

  • Recommended ST145/R12 Tire with Steel Wheels or Aluminum Wheel with Higher Load Rating
  • That particular tire size we only have available in one wheel choice and it is the Kenda Karrier S-Trail ST145/R12 Radial Tire w/ 12" Aluminum Wheel - 5 on 4-1/2 - Load Range E # AM31215. This is because we didn't want to limit the load capacity of the tire. We do have the tire available separately so it can be put on a steel wheel. It is the Kenda Karrier S-Trail ST145/R12 Radial Trailer Tire - Load Range E # AM10140, but your weight capacity will be limited by the steel wheel....
    view full answer...

  • Replacement 4.80-12 Size Tires for Boat Trailer
  • Your 4.80-12 tires are on 12 inch wheels. I'm guessing you're measuring them outside to outside and a wheel's diameter is measured from where the tire sits on it. Check out the video on part # AM20132 that I linked. You can see it being measured if you skip ahead to around the 30 second mark. Unless you feel like you need new wheels for one reason or another all you need are new tires. If most of your driving is highway driving I recommend changing to radial tires. Radials flex...
    view full answer...

  • Do Aluminum Trailer Wheels Weigh Less than Steel Trailer Wheels
  • The aluminum wheel used on tire and wheel combo # AM31215 weighs about 2 to 2-1/2 pounds less than the comparable steel wheel # AM20132 if you look at the shipping weight. But in reality the weights are closer with the steel wheels being just a little heavier. If you want to go with the lightest option I would go aluminum.
    view full answer...

  • High Capacity 12 inch Trailer Wheel and Tire Recommendation
  • We have the Aluminum HWT Series S5 Split Spoke Trailer Wheel # AM22319HWTB which has a 1,520 lb weight capacity. For a tire that will fit this rim and has the same weight capacity we have the Kenda Karrier S-Trail ST145/R12 Radial Trailer Tire - Load Range E # AM10140 which has a capacity of 1,520 lbs at 80 psi.
    view full answer...

  • Replacement Trailer Wheel Recommendation for Tire Size 4.80-12
  • The tire size associated with the number you listed is a 4.80-12 so you'd need a 12 inch wheel. For that we have the # AM20132 in white for if you have a 5 on 4-1/2 inch bolt pattern or the part # AM20122 for if you have a 4 on 4 inch bolt pattern. I also attached a link to a page that has all of the 12 inch trailer wheels we offer as well.
    view full answer...

  • Best Trailer Wheel That Will Fit A 4.80-12 Tire
  • It sounds you are looking for a new trailer wheel for your 4.80-12 trailer tires. Your 13 inch is like just a 12 inch wheel, but you may be measuring the overall diameter. Trailer wheel diameter is actually measured from bead seat to bead seat rather than overall, so a 12 inch diameter wheel may look more like a 13 inch diameter wheel. I'm guessing your wheel bolt pattern is actually 5 on 4-1/2 because 5 on 4.25 is not a common trailer wheel bolt pattern. I've attached a help article on...
    view full answer...

  • What Rim is Included with the Wheel and Tire Combo part # AM30820
  • The rim of the part # AM30820 that you referenced is actually part # AM20132 which is made by Americana. The rim is made overseas.
    view full answer...

  • Comparing the Dexstar Steel Spoke and Dexstar Steel Mini Mod 12 Inch Trailer Wheels
  • The only difference between the Dexstar Steel Spoke Trailer Wheel part # AM20132 and the Dexstar Steel Mini Mod Trailer Wheel part # AM20151 is the style. The Spoke style refers to the triangular shaped cutouts whereas the Mod style refers to the circular shaped cutouts. They both have a 1,250 lb weight capacity and 3.19" pilot diameter.
    view full answer...

  • Will 5.30-12 Tire Fit 12 Rim from Different Tire Size
  • I have never heard of a 6.00-12 tire but theoretically yes, you can use the same 12" rim for a 5.30-12 size tire like part # AM10066 as the last set of numbers refers to the wheel size that the tire fits. You do need to make sure that your tire is compatible with the width of the wheel as well (which you can find stamped on the inward-facing side of the wheel). For example, the Kenda tire mentioned above fits a 12" rim that is 4" wide like part # AM20132.
    view full answer...

Do you have a question about this Tires and Wheel?

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Info for this part was:

Installed by:
Jeff D
Expert Research:
Jameson C
Updated by:
Adele M
Updated by:
Mary E

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