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Demco Autoslide Capture Plates for Trailair Rota-Flex Pin Boxes

Demco Autoslide Capture Plates for Trailair Rota-Flex Pin Boxes

Item # DM6171
Retail:$72.50
Our Price: $64.31
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Replaces the capture plates on your Demco Autoslide fifth-wheel trailer hitch so that you can use it with a Rota-Flex pin box. Plates prevent the king pin from rotating inside your trailer hitch. 1-800-940-8924 to order Demco accessories and parts part number DM6171 or order online at etrailer.com. Free expert support on all Demco products. Great prices and Fastest Shipping for Demco Autoslide Capture Plates for Trailair Rota-Flex Pin Boxes. Accessories and Parts reviews from real customers.
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  • Reviews (104)
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  • Videos (1)
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Demco Accessories and Parts - DM6171

  • Fifth Wheel Hitch
  • Plates
  • Capture Plates
  • Demco

Replaces the capture plates on your Demco Autoslide fifth-wheel trailer hitch so that you can use it with a Rota-Flex pin box. Plates prevent the king pin from rotating inside your trailer hitch.


Features:

  • Capture plates prevent your king pin from pivoting inside your Demco Autoslide 5th-wheel trailer hitch
    • Required for use with your Trailair Rota-Flex pin box
    • Also works with Trailair Air Ride pin boxes
  • Fast and easy installation
    • Brackets replace capture plates that came standard on your hitch and secure with existing hardware
  • Made in the USA
  • 5-Year limited warranty


6171 Demco Hijacker Auto Slide Locking Plates for Trail Air Rotaflex Kingpin Boxes

Installation Details DM6171 Installation instructions



Video of Demco Autoslide Capture Plates for Trailair Rota-Flex Pin Boxes

Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.




Video Transcript for Review of Demco Fifth Wheel - DM6171

Today, we're going to take a look at the Demco Hijacker Autoslide capture plates for the Trailair Rota-Flex Pin Boxes. Now, these capture plates will prevent your king pin from pivoting inside your Demco Hijacker Autoslide Fifth Wheel Trailer Hitch, and these are required for use with the Trailair Rota-Flex pin box, but they will also work with the Trailair Air Ride pin boxes. They are a fast, easy installation. Comes with a nice set of instructions on how to install them. Basically, these brackets will replace the capture plates that come standard on your hitch, and they secure with the existing hardware. These capture plates are actually taller and longer than the factory capture plates on your hitch, which allows the auto function of the hitch to operate without a delay.

These parts are made in the USA. But that should do it for the review on the Demco Hijacker Autoslide Capture Plates for the Trailair Rota-Flex Pin Boxes..

Customer Satisfaction Score:


Customer Reviews

Demco Autoslide Capture Plates for Trailair Rota-Flex Pin Boxes - DM6171

Average Customer Rating:  4.9 out of 5 stars   (104 Customer Reviews)

Replaces the capture plates on your Demco Autoslide fifth-wheel trailer hitch so that you can use it with a Rota-Flex pin box. Plates prevent the king pin from rotating inside your trailer hitch.

by:

The stock guide plates will work. That being said, these help so much more! The are taller and longer. This guides and captures the kingpin better. By covering more of the king pin with these rails it allows the auto function of the hitch to operate without a delay. The delay in operation was something I experienced with the stock rails. That is what caused me to start searching for something better. Happy to have found these!

Tony S.

6/17/2018

After a year and lots of towing miles later, they are still working great!



by:

They fit perfectly on the Demco autoslide. They are quite a bit larger so they will contact the rigid part of the rotoflex pinbox.

Letteer

11/11/2021

These are still working perfectly. I have decided it is easier to take them loose every time I hook up, then snug them after hooking. Just the design of the autoslide mot the capture plates.



by:

Thanks for having this hard to find product, it would have been nice if the salesman at the RV dealership would have known I needed to upgrade to the larger capture plates but your website was so helpful even providing a video that answered all my questions. Product was delivered faster than expected and was just what I needed. Thanks



by:

As always, fast shipping excellent service and a fair price.



by:

This tightens the contact with the rota flex!



by:

bigger and longer then original capture plates. perfect fit.



by:

They look good. I'll be more frank on how they fit and work are after installation.



by:

Very helpful and quick delivery, reasonable price.



by:

Arrived earlier than expected, good quality, well packed and in great condition. Sales was great, walked me through everything I would need and even verified information about my trail and tow weights. Great job guys



by:

everything works great , on the hitch head underneath there's a blue stopper for letting the head stop, they keep splitting and I have call Demco support on this problem and I have paid for a couple and they I sent me a couple at no charge. Have to change one about very two campground stop. Very upsetting do have to do this.If you have any questions please let me know .



by:

etrailer is always great to work with and their help with these capture plates for my pin box is yet another example of that. That said, like some of the other reviews that I read prior to purchasing these plates, I wonder why Demco doesn't just put these on from the factory. They are awesome and would work great with or without the flex pin box.

Thanks etrailer.

Mark

2/10/2022

We’ll, here we are after a year and my Demco capture plate are still working perfectly. I highly recommend them.



by:

Easy installation onto my Demco Hijacker Autoslide 18K and a much easier and safer looking connection to my Denali with the Trailair Rota-Flex Pin Box.

Gary P.

3/23/2019

Satisfied. Makes connection much easier



by:

I’m always impressed by etrailer product knowledge, service and prompt delivery. Not my first purchase nor my last.



by:

Purchased the Demco Hijacker Autoslide 5th Wheel Trailer Hitch w/ Slider - Single Jaw - Above Bed - 18,000 lbs
Item # DM8550034 for our Nissan Titan XD pro4x. After reading about 5th wheel pin boxes, I call to see if the factory capture plates would work for our new Keystone Cougar Pinbox. I called, spoke with Cailee V in customer service. Cailee was not 100% sure. She got my information, called Keystone to see how the pin boxes were set up. She followed back up with me the next day and advised I needed to purchase the capture plates for the roto-flex pin box. Order and they arrived in 2 days. Fit my hitch perfectly. Great Customer Service, thank you Cailee, great hitch/mounting bracket and capture plates.



by:

Item was delivered on time by UPS.



by:

Hitch arrived in excellent condition. I was a little disappointed at how long it took to arrive, but with the pandemic going on, I understand. This is an excellent hitch. It definitely requires a second set of hands to drop it into the puck mounting system in the truck. My wife and I picked our 5th wheel up this past Saturday and brought it home to get it cleaned up for our trip. Very smooth and very quiet. Much better than our last manual sliding hitch. The only negative from me is that I was missing 2 of the pins that hold the arms in the locked position. Supposed to be 4 and we only had 2.



by:

These look much more substantial than the original ones. I have not actually used them yet but believe they will work very well.



by:

Super fast shipping, overall a great product. Highly recommend!



by:

Awesome transaction



by:

Perfect with my replacement head. important with Trailair Flex Air 5th Wheel Pin Box equips my FW.



by:

these are wider to cover more of the catch plate. great investment. I feel safer that more of the catch plate is covered. well worth it.

Roy

11/3/2019

Great, no issues at all.



by:

I don't understand why these are not the standard capture plates shipped with the hitch. They would work for all uses just fine.



by:

Great price and even sipped before the said date. I was emailed that my product was shipped early and the I received another email saying that it was delivered. I was well taken care of for the whole process. Great company



by:

Fit perfectly into the Demco Hijacker Hitch.
Easy
to install.

Shipping was extremely fast from etrailer / Mariah A. (thanks for that)



by:

Truth be told, I have not used this yet, but have installed it on the hitch. While it was a little hard to take the old guides and install the new ones, I am sure these will work just fine. Both Demco and etrailer are standup companies.


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See what our Experts say about this Demco Accessories and Parts

  • Is a Locking Plate Needed To Use the Demco Hijacker Autoslide with Lippert Trailair Rota-Flex
    Yes, the Demco Hijacker Autoslide Capture Plates for Trailair Rota-Flex Pin Boxes part # DM6171 will be needed when using the Demco Hijacker Autoslide 5th Wheel Trailer Hitch part # DM8550035 with a Lippert Trailair Rota-Flex Pin Box (All Models). The capture plates that come with the Demco Hijacker Autoslide will not be able to stop the Lippert Trailair Rota-Flex from pivoting which is why a custom set of plates for this exact pin box are needed. In order to mount the Demco Hijacker...
    view full answer...
  • Correct Capture Plate For Demco Hijacker Autoslide For Trailair Rota-Flex Pin Box
    I'm not sure what you mean by measurement but the correct capture plate for the Rota-Flex pin box for your Demco Hijacker Autoslide is the following: - Demco Autoslide Capture Plates for Trailair Rota-Flex Pin Boxes # DM6171
    view full answer...
  • Will Curt Flex Air 5th Wheel Pin Box Work with Demco Hijacker Autoslide 5th Wheel Hitch
    Yes, the Curt Flex Air 5th Wheel Pin Box part # LC328492 is compatible with the Demco Hijacker Autoslide 5th Wheel Hitches but you'd need new capture plates for the hitch, the Demco Autoslide Capture Plates for Trailair Rota-Flex Pin Boxes part # DM6171. These allow a much better fit between the pin box and fifth wheel hitch for better performance.
    view full answer...
  • Capture Plate for Demco Hijacker Autoslide and Trailair Road Armor/Rota-Flex
    The correct capture plate for the Road Armor pin box (which is a Trailair Rota-Flex pin box) for the Demco Hijacker 5th Wheel Hitch # DM8550024 is the Demco Hijacker Autoslide Capture Plates for Trailair Rota-Flex Pin Boxes # DM6171. I have added a link to a video review for you to check out as well.
    view full answer...
  • What is Needed For Demco Autoslide 5th Wheel HItch on 2022 Ford F-250 & Air Ride Pin Box
    Hey Bob, thanks for writing in, and let's start with the hitch for your 2022 Ford F-250. You made a superb choice going with the Demco, as the Autoslide is as good as it gets for a sliding hitch. There are options for both 18,000 lb capacity and 21,000 lb capacity, and I'll give you part numbers for both, as well as the custom base rail kit that fits your '22 F-250: - 18,000 lb Capacity: Demco Autoslide 5th Wheel Trailer Hitch w/ Slider # DM8550034 - 21,000 lb Capacity: Demco Autoslide...
    view full answer...
  • Can the Trailair Air Ride 5th Wheel Pin Box Be Used with a Demco Hijacker Autoslide 5th Wheel Hitch
    Yes, you can use the Trailair Air Ride 5th Wheel Pin Box part # LC158778 with the Demco Hijacker Autoslide 5th Wheel Trailer Hitch like part # DM8550034. However, you will want a new capture plate, the Demco Hijacker Autoslide Capture Plates for Trailair Rota-Flex Pin Boxes part # DM6171. The capture plate that comes with the Demco Hijacker Autoslide 5th Wheel Trailer Hitch will work with the Trailair Air Ride 5th Wheel Pin Box but the Demco Hijacker Autoslide Capture Plates for Trailair...
    view full answer...
  • Capture Plate For Demco Hijacker Autoslide 5th Wheel Hitch
    From what you are describing, it sounds like you may need a capture plate for your Demco Hijacker Autoslide 5th Wheel Trailer Hitch # DM8550034. There is one option for longer capture plates than what come with the Hijacker: - Demco Autoslide Capture Plates for Rota-Flex Pin Boxes # DM6171 While designed for Rota-Flex pin boxes, they will work with other pin boxes as well.
    view full answer...
  • Capture Plate Bolts Keep Bending On A Demco Hijacker With A Trailair AirRide Pin Box
    More than likely, you do not have the correct capture plate on your Demco Hijacker Autoslide 5th Wheel Trailer Hitch w/ Slider # DM8550035. I recommend swapping out the capture plate with the Demco Hijacker Autoslide Capture Plates for Trailair Rota-Flex Pin Boxes # DM6171. This capture plate is guaranteed to work with your Trailair Air Ride 5th Wheel Pin Box # LC155943, that you have. As far as adjusting your capture plate each time your connect and disconnect, you do not need to do...
    view full answer...
  • Can Demco Capture Plates Replace Stock Plates When Not Using a Rota-Flex Pin Box
    I checked with the manufacturer, who said that these particular locking plates could work with a standard OEM pin box. They are longer and taller than the locking plates that come with a standard hitch and are designed specifically for the Trailair Flex Air and Rota Flex pin boxes, but they can also fit a standard OEM pin box. However, if you have another type of cushioned or Air Ride pin box, then you will need capture plates specific to that pin box. If you have one of these alternate,...
    view full answer...
  • Is Rota Flex Pin Box Extended?
    The Trailair Rota-Flex 5th Wheel Pin Box # LC328330 that is a replacement for your Lippert 1621 is not an extended pin box. You cannot use an extended pin box such as a Sidewinder with a Demco Hijacker Autoslide because using an extended pin box with this hitch changes the pivot point, creating an unstable and unsafe towing situation. To use the Trailair Rota-Flex 5th Wheel Pin Box # LC328330 with your Hijacker you do need the Demco Hijacker Autoslide Capture Plates for Trailair Rota-Flex...
    view full answer...
  • Capture Plates for Demco Hijacker Autoslide 5th Wheel Hitch & Trailair Flex Air Pin Box
    The Demco Hijacker Autoslide 5th Wheel Hitch with Slider # DM8550024 will work with your Trailair Flex Air pin box, but you do need the Demco Hijacker Autoslide Capture Plates # DM6171. This is going to be a fantastic set-up for your 2017 Ford F-350 with the factory puck system. I've added links to video reviews for you to check out as well.
    view full answer...
  • Demco Capture Plate Compatibility with Trailair Rota-Flex Pin Box
    Yes, Demco Capture Plate # DM6171 fits their Hijacker 18K Autoslide 5th Wheel Trailer Hitch head assembly # DM6077 when it is used with a trailer that has a Trailair Rota-Flex pin box like # LC328330 (18K), # LC176440 (19K) and # LC328329 (21K).
    view full answer...
  • Locking Plates Needed For An Air Ride Pin Box In A Demco Hijacker Autoslide 5th Wheel Hitch
    The Demco Hijacker Autoslide 5th Wheel Hitch w/ Slider - Single Jaw - Ford Super Duty Prep Package - 18K Item # DM8550024 is going to need locking plates for your Air Ride pin box. The correct locking plate is the Demco Hijacker Autoslide Capture Plates for Trailair Rota-Flex Pin Boxes Item # DM6171.
    view full answer...
  • Troubleshooting Demco Hijacker Autoslide Making Noise
    How old is the hitch? Does your fifth wheel have a standard pin box or a cushioned pin box? Has it been lubricated? Does the locking bar automatically lock when the jaw closes? The thing that comes to mind immediately is the capture plates may not be adjusted properly. They MUST be evenly on both sides to 1/8" more than the width of the pin box.
    view full answer...
  • Cushioned Pin Box Recommendation for Reflection RV with Lippert 1621 Pin Box
    Your best option is the Trailair Flex Air pin box part # LC328492 which is a cushioned pin box that is designed to replace your Lippert 1621 pin box and is compatible with your Demco Hijacker Auto Slide # DM8550024. The Flex Air does a great job to make the ride quality much smoother. It cushions the vertical bumps with the air bag it has and the front to back jarring is reduced by the pin box plate being able to flex forward and back.
    view full answer...
  • Recommended 5th Wheel Hitch For A 2022 GMC 2500 Denali 6-3/4' Bed With OEM Prep Package
    Since your 2022 GMC 2500 HD Sierra Denali with OEM prep package has a 6-3/4' bed you will want to using a sliding fifth wheel hitch to provide more turning clearance and prevent the nose of your fifth wheel trailer from coming into contact with the cab of your truck. For the best I recommend the Demco Hijacker Autoslide 5th Wheel Trailer Hitch w/ Slider - Single Jaw - Above Bed - 18,000lbs # DM8550034 with the Demco 5th Wheel Rail Adapter for Chevy/GMC OEM 5th Wheel Towing Prep Package...
    view full answer...
  • Air Ride Cushioned Pin Box that Replaces Lippert 1116 Pin Box
    The Trailair pin box part # LC155943 that you referenced would be the best air ride cushioned pin box for replacing your Lippert 1116 and is compatible with your Demco Hijacker Autoslide. This won't gain you any additional clearance as that's not what these are designed to do though. Since you have a Demco Hijacker Autoslide you will need a new capture plate with part # DM6171 to lock your hitch to the Trailair.
    view full answer...
  • Will a Capture Plate Help Prevent Fifth Wheel From Damaging Truck?
    If you have destroyed the tail gate on your truck then something is definitely amiss; there is going to be some play in the hitch, but not to the point where a part of your truck would be ruined. You did not specify the hitch you used, but you would only need the Demco Capture Plates # DM6171 if you have a Demco Hijacker Autoslide and a Rota-Flex pin box.
    view full answer...
  • Can Demco Hijacker be Used with Trailair Flex Air Pin Box
    I spoke with a representative of Demco who confirmed for me that you will need to use Demco Hijacker Autoslide Capture Plates # DM6171 along with the Demco Hijacker # DM8550024 fifth wheel hitch if you have a Trailair Flex Air such as # LC328492.
    view full answer...
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  • Upgrading Demco Autoslide From 18k to 21k
    If you want to upgrade your # DM8550024 to the 21k model you can with the Replacement Head and Base Assembly # DM6107. You already have the side plates # DM6033 so there is no reason to purchase them again with the full # DM8550038. The savings isn't huge but every bit helps. Since you have a Rota-Flex on the trailer you will also need the Demco Autoslide Capture Plates for Trailair Rota-Flex Pin Boxes # DM6171.
    view full answer...
  • Can Demco Hijacker Autoslide be Used with Flexair Cushioned Pin Box
    The correct capture plate you are looking for is the part # DM6171 which will allow you to use your Demco Hijacker Autoslide part # DM8550024 with the Lippert FlexAir pin box part # LC328492 you mentioned! The Flexair pin boxes provide the most cushioning of all of the cushioned pin boxes so it would be your best option and would be perfectly compatible with your Hijacker as long as you use the capture plates mentioned.
    view full answer...
  • Capture Plate for Demco Hijacker Autoslide and Rota-Flex Pin Box
    The Road Armor is the Rota-Flex pin box, and we do have a capture plate for the Demco Hijacker for the Rota-Flex pin box. What you need is the Demco Hijacker Autoslide Capture Plates for Trailair Rota-Flex Pin Boxes # DM6171
    view full answer...
  • Do I Need a Capture Plate for a Rota Flex Pin Box?
    Yes, you do. The correct one to use with the Demco Autoslide item # DM79GV is the Demco Autoslide Capture Plates for Trailair Rota-Flex Pin Boxes item # DM6171. The Demco Autoslide 5th Wheel Hitch w/ Slider item # DM79GV you were looking at is confirmed to fit the puck system of the 2024 GMC Sierra 2500.
    view full answer...


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Info for this part was:

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