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Use your standard, above-bed fifth-wheel trailer hitch with your Chevy or GMC factory, underbed 5th-wheel towing prep package. Adapter mounts in factory sockets and supplies mounting rails in your truck bed for attaching your hitch.
Features:
Specs:
Note: This adapter will not work with a B and W Patriot sliding hitch.
This adapter is perfect if you want to use your standard fifth-wheel trailer hitch with your Chevy or GMC truck's factory-installed, underbed fifth-wheel mounting kit. Just mount the adapter in your underbed rails using the integrated pucks and lock it place. Now you have the standard, above-bed base rails needed to install your fifth-wheel hitch.
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Average Customer Rating: 4.7 out of 5 stars (271 Customer Reviews)
Use your standard, above-bed fifth-wheel trailer hitch with your Chevy or GMC factory, underbed 5th-wheel towing prep package. Adapter mounts in factory sockets and supplies mounting rails in your truck bed for attaching your hitch.Package arrived mangled, barely able to get it out of the delivery truck without it falling out of the packaging. In the end, no harm done, contents were not damaged.
Bought for use on a 2024 Chevy 2500 HD with factory installed pucks. Mounted a PullRite model #2700 slider fifth wheel hitch on top of the adapter. Adapter is very heavy duty and well designed. Per the instructions I loosened all of the latch bolts prior to installation into the truck. Retorqed once everything was in place. Simple, took less than 30 minutes. Then reinstalled my PullRite hitch without any issues.
Adapter seems well made and rock solid. Will have to wait until I tow again to see how everything rides. The height of the installment measures roughly 1.5-2 inches higher than before.
Ordering was a breeze, arrived in less than 3 days. Mike was very helpful throughout the process.
Built just like the rails I had in my old truck. I actually had the Curt adapter plate before this one and had to return it because it added too much height to my hitch. This one saved me a half inch and hopefully the $[XX] bed cover I purchased will work now.
This adapter allowed me to use the Curt A16 hitch I already owned. This DEMCO 6333 adapter is an absolute monster. Incredibly well built with precise machining. The hitch fits very well.
Since each truck is built within a certain tolerance and slightly different I had to make a minor adjustment to the lock down positions to get the perfect fit. By loosening all 4 bolts on each of the lock down handles I was able to get the adapter to drop right in place.
Comparing this adapter to others is no comparison.
This DEMCO 6333 is much sturdier.
I added a picture of the Curt A16 mounted on the DEMCO 6333 under the LUND Tri-fold cover. Overall, this is a great combination.
I wanted to be sure to say "THANKS" to Montrell (etrailer Rep) who ensured the DEMCO was a proper fir for my truck as well as processing the order quickly. Job Well Done!!
Does NOT fit my Hijacker "Ultra Slide" as recommended by the professional chat [at] etrailer.com. The slots and holes do not line up and are to narrow. Will be returning.
I'm so glad we found your product, which works well for our 5th wheel hitch. Saved us from having to buy a new hitch.
To be honest, I wish I had gotten an 8' bed on my new truck so I wouldn't need to get a sliding hitch. It's very heavy! You have to have an engine lift to put it in and that's not very easy to do either. The arm isn't long enough so you will have to move the hitch around by hand after you hoist it up into the bed. Very heavy! But, if you have a short bed truck it's the only hitch to get to protect your cab.
Katrina D.
2/16/2024
Oh yeah, sliding hitches are way heavy! I always make sure to use a second person to help carry just half of one. It's definitely worth the weight though, your truck will thank you. We use a forklift sometimes to help us lift one to the bed of a truck.
This is an excellent product to use for the Demco auto slider 5th wheel. Follow the directions and it will drop right into the pucks. It's heavy so it will take another pair of hands unless you're Arnold. I'm alone, so I have a 2 ton engine hoist that works real well. My auto slider drops right into adapter rails. An excellent piece of equipment from etrailer. Best place to buy rv equipment. When needed, they're an excellent choice for advice. I might add that this adapter is only for the 2020 Silverado and GMC Sierra. They have different ones for Ford and Ram. I would definitely buy from etrailer again.
Outstanding product. But even more outstanding was Customer Service and expert technical advice. All questions to the technical experts were processed fast and right on with correct answers. Customer service was unbelievable. I called them with a concern on shipment that was being held up. They got right in it and before the evening was gone my shipment was. Processed and at my house in three days. I was in a bind to move my fifth wheel and without a working hitch in my new truck. They came through with the product and shipment so I could move my camper and not have any issues.
As others have said, etrailer is above others on customer service and reliability of product and great technical help. My choice of business when I need something or have to have the correct technical data.
Thanks for the extra effort.
I got a new 2021 GMC with the puck system and I wanted to be able to use my existing Pullrite Superglide 2700 hitch. I looked at the Pullrite adapter...that's a multi-piece rail system and was thinking more likely to rattle. Found this Demco adapter which is one piece and a better price.
Just put the adapter (and the hitch) in the truck this morning. Following the instructions, loosened the bolts and it dropped right in. The only thing that would've made this better is if the temp was above freezing.
This is the 3 rd 5th wheel hitch I’ve ordered from you over 8 year period air bags shocks alway top quality and service is second to non!
I love the adapter. Received it really fast, and it dropped in and fit really well. I have a 2020 Chevrolet Silverado 3500hd, with fifth wheel prep package. I also have a Curt E16, with A16 slider to use on it.
Excellent product, I bought a 2020 GMC diesel the rail adapter fit perfect. As you can see in the picture, a husky fifth wheel hitch fit this adapter. The instructions that come with the adapter made it easy to install.
Quick delivery, I've always had good luck over the years with etrailer and I would recommend them to anyone!! the Box was severely damaged but merchandise in good condition. I blame UPS as for the package was extremely heavy..
Amy provided excellent advice in helping determine the best choice for a 5th wheel hitch to use with our 2020 GMC 2500 Crew Cab with the 6-3/4' bed. One important factor was the sliding feature on the Demco Premiere which had 8" of travel, rather than the 12" slide on other models. (In reviewing specs on various hitches, it appeared that the 12" slide versions might interfere with the tailgate on the truck.)
The Demco has worked fine for us. We have not needed to use the slide but it is reassuring to know that it is available if we get in a tight maneuvering situation. (The cab corner on our previous truck took a couple of minor hits using a non-sliding hitch.)
The customer service group was very helpful and I was able to assemble and install the hitch and adapter plate with minimal assistance. Shipping was fast and a minor issue was taken care of immediately.
This product was poorly shipped. The corners weren’t protected should put in hard pieces of cardboard elbows on the corners. I will show you pictures. THIS IS NOT NOW A PROTECTED ITEM FROM RUST. I WAS GOING TO CONTACT YOU TO SEE HOW TO FIX THIS. I will be waiting for a call
Excellent product extremely well built! Just what you would expect from Demco!
Well built, fits well. Poor packaging, the box was all torn up and paint was nocked off the edges.
First time using etrailer. The whole process from ordering to delivery was great, placed order on Tuesday and received it on Thursday. I was kept informed through the entire process. I ordered the Demco dm6333 adapter to be used with a Pullrite 2700 SuperGlide that i already owned. Used the dm6333 adapter in a standard bed 2020 Silverado 2500 that had factory pucks. Had to loosen the bolts on the locking handle plates to get the adapter to drop in the pucks but that was expected from posts I saw on line, no problem. Mounted 2700 SuperGlide to adapter just fine. Trailer is 7 inches above bedrails and good clearance when turning. Trailer is about 2 inches from level but I don't think that is a problem. Demco's dm 6333 seems to be what i needed without having to purchase a new hitch.
Dennis
2/3/2022
After a year, still pleased with the Demco dm6333 hitch adapter, works for me.
Well built, weighs over 100 pounds. The pucks did not fit into the OEM GM holes on arrival but they we able to be adjusted to make them fit. At this point I am satisfied with the unit.
Just had to make a small adjustment to fit the puck system but in the end, fit perfectly and seems fairly tight. My Reese slider hitch fit perfectly.
Excellent service, was able to ship my item to me in 3 days!!! Will always refer friends and family to etrailer! The Demco 6333 fit my 2020 Denali dually perfect so I could keep my 5th wheel hitch...
Fast shipping and everything fit like a glove!
Product is very well built. Installation would have went much quicker had there been directions explaining to loosen the 4 9/16 bolts at each handle to allow play for the adapter to fall into pick system. Then retighten bolts. What should have taken 10 minutes took over an hour and reading others reveiws.
I was able to order however I needed help on some technical questions bet could not get anybody on the phone, parts came in however I needed another part to complete my order, I had to call the manufacturer of Demco and they were very helpful, now it’s going to be two more weeks before I get another part so I can haul my RV. The products are Demco 5 th wheel slider, it seems to be made well however I wont know until I receive another part.
Sierra K.
10/19/2021
Sorry for the confusion. Yes, item #DM8550034 goes with the installation kit.
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John
4/25/2022
Its been a year and about 5,000 miles. Overall The Demco works well. I dont like noisy, clunking fifth wheel hitches. With some shim adjustments I am able to keep the Demco plate snug in the built-in GM adapter.