1. Gooseneck Coupler
  2. etrailer
  3. Round Tube
  4. Coupler with Outer and Inner Tube
  5. 30000 lbs GTW
  6. 2-5/16 Inch Gooseneck Ball
Ram Gooseneck Coupler w/ Load Bearing Pin - 8" Adjustment - Round - 2-5/16" Ball - 30K

Ram Gooseneck Coupler w/ Load Bearing Pin - 8" Adjustment - Round - 2-5/16" Ball - 30K

Item # GCPN-30008
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Gooseneck Coupler
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Ram Gooseneck Coupler w/ Load Bearing Pin - 8" Adjustment - Round - 2-5/16" Ball - 30K 30000 lbs GTW GCPN-30008
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In Use/Installed

Gooseneck coupler fits a 2-5/16" ball and has 8" of adjustment to fit your application. The curved internal ball clamp creates a tight fit for the hitch ball. A protected hidden spring latch is durable and easy to use. Call 800-298-8924 to order etrailer gooseneck coupler part number GCPN-30008 or order online at etrailer.com. Free expert support on all etrailer products. Guaranteed Lowest Price and Fastest Shipping for Ram Gooseneck Coupler w/ Load Bearing Pin - 8" Adjustment - Round - 2-5/16" Ball - 30K. Gooseneck Coupler reviews from real customers.
  • All Info
  • Reviews (9)
  • Q & A (4)
  • Videos (2)
  • Photos
  • Why etrailer?

etrailer Gooseneck Coupler - GCPN-30008

  • Round Tube
  • etrailer
  • Coupler with Outer and Inner Tube
  • 30000 lbs GTW
  • 2-5/16 Inch Gooseneck Ball
  • Manual Latch

Gooseneck coupler fits a 2-5/16" ball and has 8" of adjustment to fit your application. The curved internal ball clamp creates a tight fit for the hitch ball. A protected hidden spring latch is durable and easy to use.


  • Gooseneck coupler lets you hook your gooseneck trailer up to your tow vehicle
  • Curved internal ball clamp secures hitch ball and provides a strong, tight fit
  • Spring-loaded handle for easy hookup
    • Hidden spring latching mechanism protects moving parts
  • 2 Set screws secure inner tube at desired height
  • Belly band on bottom of outer tube adds strength and durability
  • Low-profile design gives a sleek appearance
  • Sturdy steel construction
  • Load-bearing pin included
  • SAE J2638 certified
  • Weld-on installation
    • Outer tube welds directly to your gooseneck trailer


  • Ball size: 2-5/16"
  • Range of vertical adjustment: 8"
  • Height:
    • Retracted: 30"
    • Extended: 38"
  • Outer tube diameter: 4-1/2"
  • Inner tube diameter: 4"
    • Inner tube wall thickness: 0.24"
  • Hole spacing: 2-11/16" from center of hole to center of hole
    • Hole diameter: 7/8"
  • Weight capacity: 30,000 lbs
  • 1-Year warranty

GCPN-30008 Ram Gooseneck Coupler w/ Load Bearing Pin - 8" Adjustment - Round - 2-5/16" Ball - 30K

Video of Ram Gooseneck Coupler w/ Load Bearing Pin - 8" Adjustment - Round - 2-5/16" Ball - 30K

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

Video Transcript for etrailer.com Ram Gooseneck Coupler Review

Hey guys. Randy here at etrailer.com. Today we're taking a look at our two and five sixteenths inch gooseneck coupler. Now this coupler is going to be pretty ideal for most gooseneck applications. It's a little bit heavier duty here at the bottom. Sometimes I like gives you a lot of confidence in it.

Another nice feature is that it's got the spring loaded release here at the bottom, so we pull that up and turn it and as we lower this down on our ball, it's automatically in a open. Then close behind it. At that point, all we have to do is pull our handle. You see it clicks right down in position. You can see our base plate here is going to be much thicker than what we are used to seeing with some of the smaller types.

It's going to have a nice wide bevel on it as well, so if we're not exactly centered underneath that ball, it's going to help to guide it in as we put weight on it.All in all, it's a really nice easy to use coupler. The overall construction feels really nice. You've got heavy duty welds around here and they're really clean. You'll see a little bit of welding slag here and there on it, but it is an unfinished coupler and we're going to have to paint it anyway, so most of that's going to come off as we sand blast it before it goes through that paint process. Now as we said, this coupler is going to work on just about any gooseneck application, but it does have its kind of its sweet spot.

I think that's going to be in your farm use, in your utility use or if you just don't haul your trailer very often. If you haul a gooseneck trailer regularly, you're used to some of that chucking, bucking and noise that we get. It can make your ride a little bit uncomfortable.So if you've got horses or livestock or living quarters in a trailer that you're trying to haul with you, I'd recommend something cushion, maybe the GEN-Y or the Convert-A-Ball cushion used from that mount. Basically that cushioning is going to take the rigidity out. So the Convert-A-Ball has about three quarters of an inch of movement there.

Your GEN-Y uses a torch and flex system and it can overall just give you a better experience while hauling your gooseneck trailer. The gooseneck is going to offer us about eight inches of adjustability, so we can move this down and up eight inches. So right now we're about 11 inches, 11 and a half inches to the bottom of the coupler to our pinhole. We can get that all the way out to about 19. Alright, now we can move on to the installation process and that's really going to depend on how you're set up currently.If you are rebuilding a trailer, maybe it took damage, you need to repair it or building a new trailer, then the outer tube is going to be something that you'll want to install. Now this is a weld on outer tube, just like any other gooseneck coupler. This one uses two set bolts. The set bolt can be tightened down using a 23 millimeter 12 point and it's going to have two jam nuts. Those you're going to need an inch and an eighth for. I like that it's not painted. That's going to prevent us having to kind of, grind all the paint off to get a proper weld done on it. Standard length on these, it's about 20 inches. You're going to see that just about across the board on the coupler, outer tubes. And one thing to make note of, the top is open on these and typical applications that's going to be capped off.That prevents moisture from getting down in there, causing that inner and outer tube to kind of rust together. So I highly recommend if you are going to install the outer tube that you have that plate welded on to protect your two components from the elements. Now with us not replacing the outer tube, we're going to take our inner tube, you're going to slide that up and in. You can see the four holes here. That's where we get that eight inches of adjustment. And as we bring that in, we just line up the pinhole with the hole in the outer tube and slide the provided pin through. We're going to secure it on the other side with a clip. Now to set your coupler height appropriately, you're going to want this to be either matching to or as close as you can get it to what your old coupler was or you'll want it to be about two inches lower than what your ball sits in the back of your truck compared to the ground. And once you've got it pinned in the appropriate spot, I'm using an inch and an eighth on this particular boat. Remember, if you're using the outer tube that comes with it, it's a 12 point 23 millimeter.We'll torque that down to the appropriate specifications. Once we've got that there we're going to bring that jam nut down and we'll need to put a pretty decent amount of force on it here. Basically that's going to prevent this bolt from backing out on us. Now of course the inaudible 00:04:19 We'll want our locking pin released it, then we'll just lower it right down. You'll notice that gate is going to move out of the way as we talked about and even as we're uneven there a little bit, it guides it right down on the ball. So overall nice and easy to connect. Let's get the weight down, you'll see that plate go back forward. Then it'll just be a matter of pulling our locking pin around here, that goes down and engage. We make the rest of our connections. We'll be ready to head down the road. That's going to complete our look at our two and five sixteenths inch gooseneck coupler.

Customer Reviews

Ram Gooseneck Coupler w/ Load Bearing Pin - 8" Adjustment - Round - 2-5/16" Ball - 30K - GCPN-30008

Average Customer Rating:  4.9 out of 5 stars   (9 Customer Reviews)

Gooseneck coupler fits a 2-5/16" ball and has 8" of adjustment to fit your application. The curved internal ball clamp creates a tight fit for the hitch ball. A protected hidden spring latch is durable and easy to use.

- GCPN-30008

Great item .works good on my rebuild tr ailer 836874

- GCPN-30008

It was well built wish they would include round piece to weld on top 672404

- GCPN-30008

The only improvement they could make is to have it factory capped, but I did it when I installed it and it only took a few minutes. It’s easy to couple and works great. 667348

- GCPN-30008

GREAT 636810

- GCPN-30008

Fast shipping great products. 591622

- GCPN-30008


- GCPN-30008

This is the OEM coupler and outer tube on my new flatbed trailer. I ordered the trailer with the kingpin inner tube. I decided to use a goosenck hitch plate on my fifth wheel rails and this gooseneck coupler during the winter and to have in case a friend needs to use my trailer and doesn’t have a fifth wheel hitch. I didn’t need the outer tube, but I now have spare set screws, jam nuts and load bearing pin. This was less than some inner tube-only prices. Only reason I didn’t give five stars is because of the weld splatter that needs to be cleaned up before painting. 450580

- GCPN-30008

Quality and workmanship look and seem extraordinary. I can give you an overall assessment in 40 yr., but I think it will outlive me. 434257

Still working great and like new after a year, no trouble at all and use at least once a week.
John P - 09/24/2018


- GCPN-30008

Just what we ordered! Fast delivery! 430181


Ask the Experts about this etrailer Gooseneck Coupler

  • How to Use the Ram Gooseneck Coupler Part # GCPN-30008
    The Ram Gooseneck Coupler part # GCPN-30008 gets welded on the trailer and then attaches to the gooseneck hitch ball in the bed of your 2017 Ram 3500. You will want to use the adjustment holes on the coupler to try and get the trailer as level to the tow vehicle as possible. Once this is done you can then pull the spring pin on the coupler to secure it to the hitch ball in the bed. After the coupler is securely seated on the hitch ball you can then attach the safety chains and wiring. Then...
    view full answer...
  • Replacement 30K Gooseneck Coupler That is 36 Inches in Length
    I might have a better solution for you. Unfortunately, # 1289050300 Bulldog BX1 Gooseneck Coupler only is available in a 22 inch length. An option you might want to consider is replacing both the outer and inner gooseneck tubes. The Redline Gooseneck Coupler with Adjustable Height, # GCPN-30008. has an adjustable height range of 30 to 38 inches. This gooseneck coupler is rated a 30K and will mount to the 2-5/16 inch gooseneck ball. The outer tube measures 4-1/2 inches and the inner...
    view full answer...
  • Recommended Heavy Duty Gooseneck Coupler For Clearance and Adjustability
    It sounds like you want vertical adjustability for 30K gooseneck coupler. It appears you may be seeking 30 inches of vertical travel and we don't have anything with that capacity. The normal range is 7-8 inches but the retracted heights can vary. We have the following options for you: Bulldog Gooseneck Coupler- Round - 30,000 lbs # BD0289500300 with 8 inches vertical travel with a retracted height of 29-1/3 inches. Ram Gooseneck Coupler - Topwind - Square - 30K # GCSQTW-30008 with...
    view full answer...
  • Looking for an Adjustable Goosneck Receiver With a 4 Inch Inside Diameter.
    We have a few different adjustable gooseneck couplers available. We offer a Bulldog Gooseneck Coupler with a 20K capacity which adjusts from 29 to 35 inches, part # BD0287600300. The coupler is for a 2-5/16 inch ball and features a 4 inch inside diameter. If you need a 30k capacity, we offer a Ram Coupler, part # GCPN-30008, that has a 4 inch inner diameter and adjusts from 30 to 38 inches.
    view full answer...

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Info for this part was:

Installed by:
Jeff D
Installed by:
Randy B
Video Edited:
Dustin K
Updated by:
Sarah W
Updated by:
Mike S
Written by:
Amanda M
Video by:
Zach D

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