I have had two different brands of extenders put on the rig (one each last time the tires were changed) and they have both leaked. I call the service center and they just say "some of them leak a bit, just keep the tire aired up". No duh! Wishing I didn't have to use the new extenders quite so often....Thanks, Jim

I had some braided ones that did not leak but always worried about them. Finally broke down and bought some $120.00 dually stems no worries since. If you want to keep the extension type try a drop of blue lock tight on each one.

On my first MOHO (Winne Vectra) I purchased some stainless steel braided ones at NAPA and they didn't leak the four years we owned the rig. Good luck.Lou05 Travel Supreme Envoy

"Dually stems"? They're actually longer stems installed in the wheel they stick through the second wheel and have a lug hoop anchor on them?I may try the locktite approach. Thanks.

3 RV's with valve extenders and none leaked. Tighten a little more than finger tight. Make sure they are installed so they don't flop around when on the road. Using non-flexible stems to match your needs helps. Using flow through caps makes it easy checking and adding air, even on the inside duals.

Alcoa Wheel carries good quality solid extensions in various lengths for different size wheels ranging from 19.5" to 24.5" wheels. They come with stabilizers. Never had any problems with the ones I've used. http://www.alcoa.com/alcoawheels/north_america/en/info_page/accessories_hd_valve_stem_ext_stabilizer_kits.asp

Do non-Leaking Valve Extenders Exist | Good Sam Community

BUTCHPHI
Explorer
Aug 14, 2013
Braided extensions are wonderful. 14 years, 126000 miles and 4 sets of tires and never a problem. However, I am the only one that installs them when the tires are being changed. I make sure that they do not rub on the wheel holes , that they are tight and that they are securely fasetned to the the outer wheel / wheel liner.
randallb
Explorer
Aug 09, 2013
If you have quality braided extensions there is one trick most people do not know about. Tighten the extensions on to the valve stem and then put a clockwise load in to the extension as you mount it on the bracket. This rotational load keeps the extension from loosening up on the stem and removes the possibility of a leak at that joint.
Randy
chili_s_trip
Explorer II
Aug 09, 2013
Dually valve! Recommended by many. Search this site. I have them and they make life simple. Thanks.
Jack H
CarlGeo
Explorer
Aug 09, 2013
grampaBubby wrote:
"Dually stems"? They're actually longer stems installed in the wheel they stick through the second wheel and have a lug hoop anchor on them?

I may try the locktite approach. Thanks.

I agree 100% - Forget extensions and get the Dually stems, they work and do not leak! Only drawback is cost.
Executive45
Explorer III
Aug 09, 2013
Hikerdogs wrote:
You don't need to spend $120.00 for valve stems. Any good truck tire shop will have the long valve stems or solid extensions for about $15.00 per wheel. The braided ones will work but they aren't recommended if you use a tire pressure monitoring system. with braided extensions the sensors will move around and eventually fail.

Since I have braided stems and a TPMS and have used them continuously for the past seven years with no problems, I would have to say your statement is a myth.....I have heard of no failures of the TPMS due to braided stems....I use rubber stems on my toad and have had no problems with them either....the 502 system no longer suggests metal stems....Dennis
Hikerdogs
Explorer
Aug 08, 2013
You don't need to spend $120.00 for valve stems. Any good truck tire shop will have the long valve stems or solid extensions for about $15.00 per wheel. The braided ones will work but they aren't recommended if you use a tire pressure monitoring system. with braided extensions the sensors will move around and eventually fail.
glamisorbust
Explorer II
Aug 08, 2013
Air-flexx.com
Executive45
Explorer III
Aug 08, 2013
I'm with Sully...it's how they're installed. We've used them for over 10 years with no leakage....same with the TPMS...tighten em right and they won't leak....Dennis
Sully2
Explorer
Aug 08, 2013
Its NOT the braided extensions....its HOW they are installed.

Ive had 3 class A's...all 3 had Dicor braided extensions and never had a leak that wasnt caused by incorrect valve cores when I had tires changed. New cores cured that problem.
J-Rooster
Explorer
Aug 08, 2013
mfox20 wrote:
I have owned 3 motor homes that all had the Wheelmasters Braided extenders and have never had an issue. As a couple of others have said, I do tighten them down a little more with a small wrench. Its also important they are mounted properly at the hub so they don't flop around.

Michael
X-2, On tighten then down a little! I don't know what brand I have? I'm on my second set on this coach with no problems. I buy a new set every time I buy new tires.