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Thread: Power King Towmax STR tires

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    Junior Member
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    Power King Towmax STR tires

    Does anybody have any experience with Power King Towmax STR tires? I believe they are made by Cordovan. I have these on my new 09 Sundance 2900MK that I picked up from the dealer about 3 weeks ago. Mine are ST235/80R16 Load E, 10 ply radial. Hope they will be better than the Mission tires that I have read so much about.
    Deron, Bonnie and the Kids
    2009 Sundance 2900MK
    2005 Chevy Duramax Crew Cab 4x4

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    Senior Member fishn2dmax's Avatar
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    Hi,

    Go look at the DOT codes and put up on here. From the DOT codes we'll be able to tell what country and what plant the tires were made in. Based on the name, I have a feeling these are China made. Only way to know for sure is off of the DOT codes.
    By the way, congratulations on the new 2900MK, we sure love that floorplan.

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    Senior Member - Past Moderator Ray LeTourneau's Avatar
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    Like fishn2damax said, they are probably made in China. Your 2900MK is well under the rating for load range E tires so I would use tham as long as you are comfortable with them. The main thing is keep an eye on the psi and watch for bubbles and uneven wear. While your traveling, stop now and then and feel them for heat. If you have one running hotter than the rest it may have a problem. Remember the tires on the sunny side of the trailer will be warmer than the shaded side going down the road. Also cold air pressure varies with the ambient temperature. You can air up your tires to 80# cold on one day, and the next morning if its cooler you may only show 75 on your gauge. As long as they are all the same you should be OK.
    Ray & Lin
    R.I.P. Suzi
    R.I.P Bart


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    Dot 83b5 Gpb
    Deron, Bonnie and the Kids
    2009 Sundance 2900MK
    2005 Chevy Duramax Crew Cab 4x4

  5. Print this Post   #5

    I put the Towmax on about 6 months ago and have since put 15,000 miles on them with no problems. They are wearing much better than the Goodyears I replaced.


    Jason, Monica and Hunter
    Dogs Sierra and Boulder

    2011 HD Chevrolet Crew Cab Dually w/Duramax
    2008 Cyclone 3210
    1999 Harley Davidson Road King
    1997 Honda Shadow
    2005 Kawasaki KLR 650
    2009 Yamaha Raptor 700
    2007 Yamaha 125
    2009 Yamaha 110
    Heartland Club Member # 1103

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    Fulltime TXBobcat's Avatar
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    Here is some information about the DOT codes.
    The code you showed I can not figure out.
    Dot 83b5 Gpb
    The 83b5 should be the date of mfgr and the Gpb
    In the Gpb the pb might be but I don't see a Gp.
    PB
    CA GOODYEAR DE VENEZUELA
    VALENCIA
    EDO CARABOBO
    VENEZUELA



    http://en.wikipedia.org/wiki/Tire#DOT_Code
    DOT Code
    In the United States, the DOT Code is an alphanumeric character sequence molded into the sidewall of the tire for purposes of tire identification. The DOT Code is mandated by the US Department of Transportation. The DOT Code is useful in identifying tires in a product recall.
    The DOT Code begins with the letters "DOT" followed by a plant code (two numbers or letters) that identifies where it was manufactured. The last four numbers represent the week and year the tire was built. A three-digit code was used for tires manufactured before the year 2000. For example, 178 means it was manufactured in the 17th week of 8th year of the decade. In this case it means 1988. For tires manufactured in the 1990s, the same code holds true, but there is a little triangle (Δ) after the DOT code. Thus, a tire manufactured in the 17th week of 1998 would have the code 178Δ. After 2000, the code was switched to a 4-digit code. Same rules apply, so for example, 3003 means the tire was manufactured in the 30th week of 2003.
    Other numbers are marketing codes used at the manufacturer's discretion.



    http://www.harriger.com/tires.htm
    All the D.O.T. Tire Plant Codes

    Hope this is informative.
    Travel safe & may God bless
    Bob Curry & Trevor
    2016 F350 CC SRW LB 4WD
    Ruby Red 08 Bighorn 3400RE #9948
    Mor/Ryde 7k IS, 8k DB * 17.5 Rims w/G114 GY Tires
    Bigfoot Auto Leveling
    Escapee 96030 * Fulltime since 10-08-2007
    Club Member # 1081

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    Senior Member fishn2dmax's Avatar
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    Quote Originally Posted by deron1 View Post
    Dot 83b5 Gpb


    Deron 1, I have some bad news for you! Your DOT code is the exact same DOT code as what was on Previous China bomb Unicorn Express tires that came from the factory on my 2900MK. If you download the latest DOT codes, you'll find 83 is a plant in mainland China and the B5 is the tire type. Here is the link to my tire previous tire discussion on this same DOT code //heartlandowners.org/showthread.php?t=3036

    It appears that chinese factory is putting out a lot of different brands of ST trailer tires using the same tire mold. My strong advice is to only use them until you can afford to replace them, and really watch the air pressure. Do visual pre-trip and post trip inspections of the tires; I know inspection of the tires saved me a blow out.

  8. Print this Post   #8
    Junior Member
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    Re: Power King Towmax STR tires

    I had less than 6000 miles and one tire had a large bubble and three had tread seperation
    They are only giving $198 credit. I bought Goodyear 614 after reading comments on our Heartland site.

  9. Print this Post   #9
    Senior Member
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    Re: Power King Towmax STR tires

    We have quite a few Power Kings (made in Brazil) on low boy trailers. Noticed yesterday they are really cracking and have low miles on the tread.
    2009 Augusta
    2011 F350 6.7 CC KR SRW LB

  10. Print this Post   #10

    Re: Power King Towmax STR tires

    We are in the process of rebulding our boat tailer. It has set out in the sun (boat has a cover) for 10 years and takes about 10 50 mile trips to the ocean each year. I hadn't paid much attention to the tires until I joined this forum. Anyway, I had 4 Towmax, made in China in 2001, bias ply tires on the trailer! They showed almost no wear and no cracking from the sun! Wheels were badly rusted from the salt. We replaced them all, new wheels also.
    Guess even China doesn't build em like they used to.
    Steve, Sheri, and Mutley our italian greyhound
    2010 Cyclone 3010
    2003 Chevy 2500 Duramax 4x4, Extended cab, SB
    Kawasaki Teryx Sport

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