[Shamu406]

I found on Ebay,  very close similar part numbers but not exact, not sure if they are correct?
I found - K71DAOO-KS1-KBO (OPEN BOX) - 110.00
And - K71DAOO-KCO-KBO - (USED) - 75.00
[url=https://www.ebay.com/str/mroglobalsolutions?_trksid=p4429486.m3561.l161210][/url]

https://cdn.norgren.com/pdf/Nugget%20200...anical.pdf

This page may help you determine suitability. The valves are modular. The model designation denoted the modules combined for the end product. ie: KBO indicates palm button.  Have you determined the exact model number that your current valve is?

My current valve model number according to Newell, is #6538, which isnt telling me a lot? I cant determine which is the correct plug and play valve I need. A  bit confused at this point.

[Shamu406]

As said in Cool Hank Luke, “what we have here is a failure to communicate”.

You are asking for a direct replacement. The valve you are replacing is a common item in the pneumatic world, and the guys have been giving you different options for replacing the valve.

You may not find a direct replacement for a 25 yr old part. But there are many options available to you that function in exactly the same way.

I do have a tendency to overthink things at times. On more than one occasion I have been the victim of ordering the wrong parts. Sorry for any redundancy. I am greatful for everyone's help and advice that is for sure.

[Shamu406]

And if you want to stay with a palm style.    https://www.amazon.com/dp/B07SJCY26Q/ref...GhlbWF0aWM

Richard, I bought this one you suggested. It is much smaller than mine on the coach. I assume it will perform the task. I would have to drill new holes to mount it on the bracket. 
Anything I should know or anticipate before installing it? Thanks, John

[Richard]

Plumb it and test before you mount.

The exhaust ports as installed by Newell have a screw adjustment in them. The adjustment is to control the open and close rate.

[Shamu406]

Plumb it and test before you mount.

The exhaust ports as installed by Newell have a screw adjustment in them. The adjustment is to control the open and close rate.

Thanks Richard, will do. 
By the way, Im in Floral City every other week. Have a lake home on Tsala Apopka Lake, and a commercial property on South Florida Ave. I'm working on, near the Golf Driving Range.

[Richard]

John,

We are on the road for the summer, and will not return to Inverness until late Oct.