Troubleshooting Failed Valve Stems on 8" Tires
Updated 10/03/2025 | Published 10/02/2025
Question:
Two of my 8 inch tire hi pressure valve stems have failed. I have three other tires that are likely to fail. What can I do to prevent this product failure.
asked by: Kenneth C
Expert Reply:
Hey Kenneth, thanks for reaching out!
Immediately what comes to mind is swapping out your valve stems to the Americana Metal, Bolt-In Valve Stem # AM20906 because it's rated for up to 200 psi that way we can just get it fixed. But the problem with that is I don't think we'll be properly diagnosing what's going on.
Just to start out and check some boxes, do you have your tires filled to the max psi rating listed out on the sidewall of the tire, and do you know if you're under or over the speed and weight ratings for your tires?
Product Page this Question was Asked From
Americana Metal, Bolt-In Valve Stem - 1-1/4" Long
- Tire Repair Tools
- Valve Stems
- Bolt-In Stem
- 10 Inch Tire
- 12 Inch Tire
- 13 Inch Tire
- 14 Inch Tire
- 15 Inch Tire
- 16 Inch Tire
- 17.5 Inch
- Chrome
- 200 psi
- Silver
- Americana
more information >
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on Tire Repair Tools
Kenneth C.
10/3/2025
Jon, I try to keep the tire pressure close to 90 psi but it can occasionally go down to 80 psi. I don't worry about that because the trailer load is well below max weight. Both valve stems that failed had tears in the rubber on the bottom. Could the galvanizing on the rim cause this? Would I be able to install the AM20906 myself? I appreciate your support, Ken Charles