Upgrading Tire Capacity for 14000-lb Dump Trailer to Prevent Blowouts
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Question:
I have a 14000 lb. dump trailer that came with 2 7k dexter axles. The wheels and tires also were 8 lug 16inch wheels and st235/80 r16 load E tires. I would like to upgrade due to blown tires. I was wondering if I can go to 215/75 r17.5 16 ply tires with new rims
asked by: Jon G
Expert Reply:
You can potentially change wheel/tire size if you have the clearance but you can gain load capacity more easily by keeping your existing rims and switching to a Load Range G tire in your current size ST235/80-16.
Westlake Load Range G radial tires # WE76FR have a 14-ply/4080-lb load rating per tire, compared to 3520-lbs for the E-rated tires you have now, so these will give you more safety margin and actually exceed the axle rating. This special trailer tire also has a tread wear indicator and sipes in the tread that channel water away for better traction in wet conditions. These tires do operate at higher pressure than E-rated tires so you'll need to have suitable valve stems like # AM20906 that will handle their 110-psi inflation pressure.

Product Page this Question was Asked From
Taskmaster Modular Wheel w/ +0.08 Offset - 17-1/2" x 6-3/4" Rim - 8 on 6-1/2 - Silver
- Trailer Tires and Wheels
- Wheel Only
- 17-1/2 Inch
- 8 on 6-1/2 Inch
- Steel Wheels - Powder Coat
- Taskmaster
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