
Wallace 20,000/2000 lbs Med Duty Adjustable Ball Coupler 2-5/16" - Channel Mount Includes Two 4-1/2″ long x 5/8″ diameter bolts and 2 Lock Nuts
Rated for your tow
20,000 lbs GTW · 2,000 lbs TW· 20,000 lbs GTW · 2,000 lbs TW
$199.92
or as low as $17/mo with flexible financing — 4, 6, or 12 months. Options at checkout.
Adjustable for Channel Mounting
Designed for Trailer A-Frames with Vertical Channels along with Shocker Hitch air trailer tongue mount.
Auto Locking Design
Auto-locking system – Drop the trailer down and it will lock the ball in place.
Powder-Coat Finish
Completely black powder coated for protection from salt and other debris.
Channel Mount Installation
Use two 5/8″ Bolts to Secure to Channel – Two 5/8″ x 4-1/2″ Long Bolts & Two Lock Nuts included along with pin & clip.
Stop destroying your trailer and cargo.
Every bump, pothole, and expansion joint sends a violent jolt through your trailer frame, damaging cargo and wearing out your truck. Shocker Air Ride Hitches absorb that punishment at the coupling, before it reaches your trailer.
A worn or loose coupler is the part you feel every mile, a rattle on the ball, a little slop at every stop, and that nagging question of whether it really locked before you pulled out. This medium duty auto locking Wallace coupler is the fix. It drops over a 2-5/16″ hitch ball and auto-latches on its own, so you just lower the trailer and it locks the ball in place, quick to hook up and quick to drop. It fits trailer A-frames with vertical channels and our air trailer tongue mounts, is rated to 20,000 lbs tow and 2,000 lbs tongue weight, and ships with two 4-1/2″ long x 5/8″ diameter bolts and two lock nuts. The heavy-duty black powder coat keeps salt and road spray from rusting it out, so it holds up season after season.
Key Highlights
- Bolts to channel A-frames: adjusts to fit trailer A-frames with vertical channels and Shocker Hitch air trailer tongue mounts.
- Handles heavy loads: 20,000 lbs tow rating and 2,000 lbs of tongue weight, so it works under a serious trailer.
- Auto-locks on its own: drop the trailer down and it grabs the ball and locks, so you hook up fast and know it's set.
- Made for a 2-5/16″ ball: fits a 2-5/16″ hitch ball only, so match your ball before you order.
- Sized for standard channel: fits 3″ ID / 3.5″ OD channel with 2″ on 2″ center holes.
- Everything to bolt it on: two 5/8″ x 4-1/2″ long bolts, two lock nuts, and a pin and clip come in the box, so it goes straight onto the channel.
- Built strong: forged by Wallace Forge.
- Black powder coat that lasts: completely coated to hold off salt and road debris season after season.
Will It Fit Your Trailer
- Bolts to channel A-frames: adjusts to fit trailer A-frames with vertical channels and Shocker Hitch air trailer tongue mounts.
- Fits a 2-5/16″ ball only: match your hitch ball before you order.
- Fits 3″ ID / 3.5″ OD channel: with 2″ on 2″ center holes.
Specs and Features
- Rated to 20,000 lbs GTW: 20,000 lbs tow rating and 2,000 lbs tongue weight, so it works under a serious trailer.
- Auto-locking: drop the trailer down and it grabs the ball and locks it in place, quick to hook and quick to unhook.
- Bolts to the channel: two 5/8″ x 4-1/2″ long bolts and two lock nuts secure it, and a pin and clip are included.
- Forged strong: built by Wallace Forge.
- Fully black powder coated: shrugs off salt and other road debris.
When to Order Just a Coupler
If you already run a Shocker tongue mount and the original coupler is worn or damaged, a standalone Wallace or Demco coupler replaces just the head. You keep the tongue mount and swap only the worn part, which saves you the cost of a whole new setup.
$199.92
Still researching?
Skip the product wall — these are the four guides every buyer actually opens before they decide.
Installation Guide
Step-by-step videos for every Shocker family. What's in the box, what tools you need, and how long it takes.
Watch the installAir Pressure Setup
How to dial in air pressure by trailer weight so the ride is right the first time and the hitch lasts longer.
See psi by loadTowing Capacity Guide
Match GTW, tongue weight, and receiver size to your truck class so you don't over- or under-buy.
Read the guideConfigure Your Hitch
60-second fit quiz — answer a few questions about your truck and trailer, get a tailored recommendation.
Start the quiz
- 1-Year Manufacturer Warranty
- 60-Day Returns
- 20,000+ Customers
- Ships from Canada


