Rare 2016 Montana 3721RL With Factory 4th Slide: Prototype Discovery

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A member with a 2016 Montana 3721RL reports having a factory-installed fourth slide at the foot of the bed, despite brochures and most units listing only three slides. Other RVers confirm that a fourth slide in this model year is highly unusual, with some suggesting it could be a prototype or preproduction unit. Attempts to find documentation or dealer information proved difficult, and even contacting well-known RV experts yielded no results.<br><br>Persistence paid off when the original... More...

Oregon Coast

Member
Joined
Jul 15, 2021
Posts
12
Location
Oregon
Our 2016 Montana 3721RL, which usually has 3 slides, actually has 4. The additional slide is at the foot of the bed, at the front of the RV. The other three slides are located where the Montana Brochure shows them. I haven't been able to get any info, online or Dealer, how this materialized. Maybe, in 2016, there was an option where a 4th slide could be ordered. It is factory installed. Anyone have any knowledge on this?
 

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How about posting a picture of the "4th slide"? The foot of the bed is normally attached to the bed frame which is then attached to the wall so that it moves in and out with the slide. Perhaps a previous owner adapted something?
 
My previous rig was a 3720 and did not have a fourth slide, I have never seen one with the fourth slide on bedroom. mine was a 2016
 
So I’ve spent some time on this and I’ve had no luck. Almost no one but high end stuff like Luxe has a dresser slide. I’d touch base with Josh the RV nerd at Bish’s in Michigan and see what he says. As aside, it sure looks like the preproduction Alpine 3303CK. Preproduction units had the same window configuration. The production units had the window swapped to the rear of the slide
 
So I’ve spent some time on this and I’ve had no luck. Almost no one but high end stuff like Luxe has a dresser slide. I’d touch base with Josh the RV nerd at Bish’s in Michigan and see what he says. As aside, it sure looks like the preproduction Alpine 3303CK. Preproduction units had the same window configuration. The production units had the window swapped to the rear of the slide
Good idea, Michael. I attempted to reach out and can not locate a way to contact him. I even talked to the receptionist at his dealership location, and of course she knew nothing. But thanks.

And should anyone ever talk to an informed Montana Rep, the serial # is 4YDF37222G4701874
 
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You might try calling Keystone. If you can convince them you’re not looking for trouble they might open up. My bet is it’s a prototype that got turned loose into the wild.
 
You might try calling Keystone. If you can convince them you’re not looking for trouble they might open up. My bet is it’s a prototype that got turned loose into the wild.
Thank You, St. Michael, I tried earlier to call customer support, and couldn't get any help. I tried again and found a different phone number, and luckily a gentleman named Vane picked up. He was great!! He dug into his computer and figured out it was indeed a prototype. They made one of these, and used it as a Model for dealers to look at, but dealers didn't show much interest, so it never went into production. In case anyone needs the phone number, 866-425-4369. Thanks again.
 
I’m glad mystery solved a dresser slide was a big selling point for us. It adds so much room to the bedroom. 👍
 
mine is a different model number, a 3820FK, but it has 5 slides, and has the slide in the neck as shown.
Our dresser in the bedroom is also on its own slide, the bed is on a different slide

bryon
 

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