2001 Dynasty Air Springs Replacements.

[Jeff753]

I can see “Firestone Air Springs” on the bags but where is the part number?
Are all 10 the same bag (part #)?
Any good source for purchase?
Any rules for age/wear?

[8.3Oilbuner]

Hi Jeff; Here are some numbers for you. I have an 01 Windsor and I think that your 01 Dynasty has the same. I am not sure about your tag. Firestone W01-358-8897. This fits a lot of our Roadmaster chasse's of our year. A Monaco part number should be 8619. Try using the search box at the top right of this page and I know the info is out there. Also try www.trucksprings.com. I think that is a good web address. As to rules for age and wear, I keep my fingers crossed that they don't start to leak. Lots of owners here have posted about changing them out themselves. Does not sound like too much fun! I could have a correction on the first Firestone number Jeff. I found more info in my tech. sheets. Try W01-358-9376. Found this Firestone spring on the web site I posted. For my Windsor I have written down this is for the front and rear. Still not sure about your tag!

[fletch460]

Jeff, I changed both of mine last year on a Winnebago I had. Had to take one off to see part no. Been trying to find info for you but no luck. I punched in the part no. and they popped up. About 300.00 each. Life expectancy 20 yrs.

[jwessling]

I have a 2001 diplomat 40 and was told the front bags were Firestone 6905 and the rear were 9376.


Hope this helps.

[barmcd]

Jeff, the P/N is embossed on the outside of the bag. It's a small number and hard to see. You will probably need a flashlight to see it on an old air bag, its just below the Firestone logo in this picture. My Dynasty air bags are W01 358 9376.



Old and new air bags.

[Jeff753]

Perfect thanks!!
Mine don’t look too bad. Some small checking on a couple. Left front got peppered a bit when hula skirt separated exposing the bottom of the bag.

Are they all the same on yours?

[barmcd]

Originally Posted by Jeff753

Perfect thanks!!
Mine don’t look too bad. Some small checking on a couple. Left front got peppered a bit when hula skirt separated exposing the bottom of the bag.

Are they all the same on yours?

Yeah, they are. From what I've observed, virtually all the early 2000s Monaco coaches all used this air bag on at least one axle. Some, like mine used them on both front and rear and others used this on the rear and a convoluted bag, W01-358-6905, on the front.

Here's a guide for identifying air springs.

https://www.firestoneip.com/content/...de-Springs.pdf

Firestone's catalog. W01-358-9376 i son page 18 and the W01-358-6905 is on page 112. Both are identified with Monaco coaches. They give you the measurements so you can check the fit. You can usually get to the front air bag pretty easily.

https://www.firestoneip.com/content/...catalog-us.pdf

[barmcd]

BTW, I carry a spare with me along with 25' of air line a variety of air fittings and a Hadley Ride Height Valve in case I have an issue.

[Rusty Kramer]

Dennis,

Any noticeable difference in the ride after replacing the air bags?

[barmcd]

Originally Posted by Rusty Kramer

Dennis,

Any noticeable difference in the ride after replacing the air bags?

None that I could tell.

[Jeff753]

Now I’m reading these bags can last over 20 years

[kustom]

thanks for the info

[barmcd]

Originally Posted by Jeff753

Now I’m reading these bags can last over 20 years

Yes, most of mine are 19 years old.

[CountryB]

Originally Posted by barmcd

J
Old and new air bags.

Are these the same parts?
Is the old one just flattened more from age - or are they different brands and sold as equivalents?