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Valve Extenders For A 2014 Tiffin Allegro Bus Class A Motorhome  

Updated 01/19/2026 | Published 08/08/2024

Question:

I have a 2014 Allegro Bus and I get significant voltage when starting the hydraulic pump to move slides. Do you have anything to reduce that start-up current spike? Also, do you have 5.5 inch tire valve extensions?

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Expert Reply:

Hey Walt,

We unfortunately don't offer any kind of start capacitor for motor of your slide out system but you could try reaching out to Lippert to see if they offer anything comparable. As for the valve extensions, the largest straight extender we offer is 4" long # TM37SR, but we do offer valve extender hoses that are around 20" long and would either mount to the hub, hand hole, or rim. The Wheel Masters 4-Hose Inflation Kit # WM8004 is one of the most popular options for this.

expert reply by:
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Kevin C
Jesse M. profile picture
Etrailer Expert

Jesse M.

1/19/2026

Hey Walt, were you able to find a solution from Lippert for the voltage spike on your Allegro Bus? It’d be great to know if their support helped or if you found another way to smooth out that start-up current. Your update could point others in the right direction.

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