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  1. Gooseneck Coupler
  2. Shocker Hitch
  3. Square Tube
  4. Coupler with Inner Tube Only
  5. 40000 lbs GTW
  6. 3 Inch Gooseneck Ball
Shocker Hitch Gooseneck Coupler w/ Shift Lock - 3" Ball - Square - 40K
Shocker Hitch

Shocker Hitch Gooseneck Coupler w/ Shift Lock - 3" Ball - Square - 40K

Part Number: SHK34SR
In Stock
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$371.56
Retail:$389.99
You Save: $18.43
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You've dealt with sloppy couplers and loose latches long enough. This coupler gives you a quiet, stable ride that stays locked in place when the trailer bucks or brakes, with no shifting or banging to jerk the trailer or rattle the cab. 1-800-940-8924 to order Shocker Hitch gooseneck coupler part number SHK34SR or order online at etrailer.com. Free expert support on all Shocker Hitch products. Great prices and Fastest Shipping for Shocker Hitch Gooseneck Coupler w/ Shift Lock - 3" Ball - Square - 40K. Gooseneck Coupler reviews from real customers.
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  • Reviews (2)
  • Q & A (0)
  • Videos (1)
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Shocker Hitch Gooseneck Coupler - SHK34SR

  • Square Tube
  • Coupler with Inner Tube Only
  • 40000 lbs GTW
  • 3 Inch Gooseneck Ball
  • Shocker Hitch
  • Manual Latch
  • Shock Absorbing

You've dealt with sloppy couplers and loose latches long enough. This coupler gives you a quiet, stable ride that stays locked in place when the trailer bucks or brakes, with no shifting or banging to jerk the trailer or rattle the cab.


Highlights

  • Secure Hookup: Shift Lock coupler grabs the ball on both sides and locks when it drops on.
  • Ideal for Rebuilds & Replacements: Great fix when your original stem is worn, bent, or outdated.
  • Bolt-On Installation: Replaces your existing inner tube - slide out the old, pop in the new.
  • Adjustable Fit: Four mounting holes spaced 2-3/4" apart let you dial in your ride height.
  • Made of Steel: Thick-wall tubing with welded components hold up under heavy loads and rough roads.

Features to know about

Hook Up and Forget It

Shocker Hitch Latches

The Shift Lock coupler uses a dual-jaw design to grab both sides of the 3" ball, creating a firm, centered connection that holds steady under tension. Many latches only grab your ball from one side, which can leave room for slop. This one clamps evenly and helps cut the jolt when you take off or stop. The locking handle sits up top, so you can see when it's latched. And if you're leaving your trailer hooked up somewhere, a lock (sold separately) will keep the latch from being opened, so no one can pull up and take it.

Specs

Application:

  • Stem: 4" square
    • Must have straight safety pin holes
  • Ball size: 3"

Adjustment Specifications:

  • Number of adjustment holes: 4
  • Hole spacing: 2-3/4"

Tube Dimensions:

  • Outer tube width: 4"
  • Outer sleeve thickness: 1/4"

Weight Capacity:

  • Gross towing weight: 40,000 lbs
  • Vertical load limit (maximum tongue weight): 8,000 lbs

Construction:

  • Black powder coated steel

Warranty:

  • 1-Year
  • Made in the USA

Notes:

Towing capacity is limited by the lowest rated component in your setup.


If you have a recessed gooseneck ball, there must be at least a 12" x 12" opening in your bed for this coupler to work. In addition, the top of the hitch ball cannot be more than 2" from the top of the bed.



SL-SQ-STR-SL40 Shocker Hitch Shift Lock Gooseneck Stem & Coupler for 3" Ball - Square - 40 K Replaces SL-100SQ-STR-SL40 and SL-4SQ-STR-SL40

Installation Details SHK34SR Installation instructions


California residents: click here


Video of Shocker Hitch Gooseneck Coupler w/ Shift Lock - 3" Ball - Square - 40K

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




Video Transcript for Review of Shocker Hitch Gooseneck Coupler - Gooseneck Coupler With Shift Lock 3 Inch Ball - SHK34SR

Hi, everybody, Andy here with etrailer.com. Let's take a quick look at this Shocker Hitch Gooseneck Coupler with Shift Lock for your three-inch ball. Now, this coupler is going to give you a quiet, stable ride that's going to stay locked in place when the trailer bucks or brakes, so you're not gonna have to worry about shifting or banging to jerk the trailer or rattle the cab. Now, this is going to replace your existing inner tube, and you're going to slide out that old tube and slide this new one in, so this will be ideal for like rebuilds or replacements. This is gonna be a great fix when your original stem is worn, bent or outdated. This is going to give you a gross towing weight of 40,000 pounds, and a vertical load limit or a maximum tongue weight of 8,000 pounds.

And the stem is, four inches, as I hope you can see there. And you must have straight safety pins to go through this, straight pins to go through this, so just so you're aware of that. This will not include any hardware. In case you're wondering just the overall height or rough measurement from bottom to top, it's gonna be about 28 3/4 inches total length. And so this is, as you probably saw here, has adjustable mounting holes.

You are going to get four of them there. And these are spaced 2 3/4 inches apart on center. So, like for instance right here, 2 3/4 inches apart on center. So, you're gonna be able to dial in that ride height that's gonna work best for you. And taking a closer look here, this does feature the Shift Lock Coupler that's going to use a dual-jaw design, so it'll grab both sides of that three-inch ball.

So, just to give you a brief demonstration, I have this secured in the unlocked position to allow me to disconnect from the ball or uncouple, but I'm just gonna remove this safety pin here and slide that into the locked position. And then that's going to, as you probably saw there, that's going to go around both sides of your ball there. So, you're gonna have a firm, centered, secure connection that's gonna hold steady under tension. As you probably know, many latches only grab your ball from one side, which can leave room for slop, but this one's going to clamp evenly, and it's gonna help cut that jolt out when you take off or you stop. And so the locking handle sits here on top, so when you have that in that locked position, again, you're just gonna be able to replace the tethered safety pin and clip here, and then that's going to keep that secured on your three-inch ball.

So, very easy to uncouple and couple. So, underneath that ball, when you couple that ball, you can imagine underneath the bars there are going around both sides of that ball. So, very secure, and it's gonna really cut down on a lot of that jerking and moving. It's gonna be a nice, secure connection. Now, this is made of steel with a high-impact, matte black, powder-coat finish. It's got thick-walled tubing, with welded components that's going to hold up really well under heavy loads and rough roads. And I did wanna point out that if you do have a recessed gooseneck ball, there must be at least a 12-inch by 12-inch opening in your bed for this coupler to work. And in addition, the top of the hitch ball cannot be more than two inches from the top of the bed. Well, I think that's going to wrap up our look today. If you happen to have any other additional questions about this or any other items that we carry, don't hesitate to reach back out to us. We do wanna make sure that you're getting exactly what you want and need. Well, again, my name is Andy. Thank you for joining me.

Ratings & Reviews

5.0

2 reviews
You've dealt with sloppy couplers and loose latches long enough. This coupler gives you a quiet, stable ride that stays locked in place when the trailer bucks or brakes, with no shifting or banging to jerk the trailer or rattle the cab.

by:

Works perfectly and fixed my clearance problem.



by:

Great product Looks amazing! I called and it went straight to voicemail, so I hung up. A few minutes later a sales rep calls back. He was so helpful and nice. After answering all my questions he didn’t pressure me to buy right then and that stood out to me. More companies need to follow their customers service love mercy grace hospitality.


2
2

See what our Experts say about this Shocker Hitch Gooseneck Coupler


Info for this part was:

Employee Matthew S
Updated by:
Matthew S
Employee Michael B
Updated by:
Michael B
Employee Daron K
Edited by:
Daron K
Employee Andy C
Installed by:
Andy C
Employee Kim H
Written by:
Kim H

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