Heavy Duty Air Trailer Tongue Mount - No Coupler - Square Plate Mount
Rated for your tow
25,000 lbs GTW· 25,000 lbs GTW
$1,243.18
$1,343.98 save $100.80
or as low as $104/mo with flexible financing — 4, 6, or 12 months. Options at checkout.
Simple Pivot Design
uses a rocker arm pivot design which produces a down and back motion, much different than other air ride products on the market.
No Ball Coupler or Pintle
Ring Included. This does not include the ball coupler. We recommend a bolt on vertical channel wallace forge or demco ball coupler or a shocker pintle ring that is designed to fit the 3" wide front…
25,000 lbs GTW & 3,500 lbs Tongue Weight Capacity. (Note
For 25K tow capacity, make sure the coupler you use is rated at 25k).
Heavier Loads, Just Add Air
Fine tune for your towing weight. Just add air for heavier loads.
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.
Pull a heavy trailer over frost heaves and hard stops and every jolt runs straight through the tongue into your cargo, your trailer frame, and the truck doing the pulling. The Shocker Heavy Duty 25K Air Tongue Mount puts the air ride on the trailer itself. It bolts right to your A-frame, so any tow vehicle that hooks up gets a softer tow with nothing added to the truck. Rated up to 25,000 lbs GTW with tongue weight, it is the heaviest tongue mount we build. Buy it as a bare base frame or with a coupler already installed. The built-in 3-inch front channel takes a vertical-channel coupler or a pintle ring.
Key Highlights
- Handles up to 25,000 lbs GTW with up to tongue weight, the heaviest tongue mount we make
- Built-in 20K air ride soaks up road shock right at the trailer connection, before it reaches your cargo
- Square Plate Mount bolts straight onto heavy A-frame trailers
- Comes as a bare base frame or paired with a coupler, your call
- 3-inch front channel takes ball couplers or pintle rings
- Works with weight-distribution hitch systems
- Air ride stays with the trailer, so every truck that hooks up rides better
- In stock in Canada and ships direct, no border wait
What's Included
- Shocker HD 25K Air Trailer Tongue Mount base frame (Square Plate Mount)
- coupler (pre-installed on bundled SKUs only)
- Air bag (pre-installed)
- Schrader air valve with cap
- Greasable 1-inch heat-treated 1045 steel center pivot bolt
- Installation instructions
Not Included
- —Coupler or pintle ring (on no-coupler SKUs, sold separately)
- —Mounting bolts (5/8-inch bolts 4-1/2 inches long for vertical channel; 5/8-inch by 4-inch typical for square plate)
- —Air compressor or pressure gauge (available separately)
- —Weld-on vertical tongue adapter (available separately as SH-410-Spot or SH-410-C)
- —Weight-distribution hitch system (compatible but sold separately)
Installation
Watch the official install walkthrough for this hitch — the exact steps and tools, straight from the manufacturer.
How It Works
Air Ride Suspension
A 20K-rated air bag sits between the coupler and your trailer A-frame, catching road shock before it can reach your trailer frame, your cargo, or the truck up front.
Adjustable for Any Load
Add air or bleed it off to match the load. Heavier trailer, more air. Light or empty, less air. You set the ride pressure that suits the trip.
Rocker Arm Pivot Design
The coupler pivots down and back on a rocker arm, with no slides, rollers, or parallel linkages. Fewer moving parts means less to maintain and a longer life.
Maximum Ground Clearance
The air ride sits above the trailer tongue, so you keep full ground clearance for steep approaches, off-road equipment trailers, and tilt-deck haulers.
Built For Heavy Trailers Like These
This is the heaviest tongue-mount tier we make, built for serious commercial and recreational hauling:
- End dump trailers and heavy equipment trailers
- Race car haulers and stacker trailers
- Skid steer and tilt-deck equipment trailers
- HD flatbed trailers and lowboys (within rating)
- Large enclosed cargo and tool trailers
- Any A-frame trailer up to 25,000 lbs GTW with up to tongue weight
Two Ways to Mount It
Pick the version that matches how your trailer A-frame is built:
Vertical Channel Mount (SH-HD4000 series)
Fits a 3-1/2-inch wide vertical channel with a 2-inch center-on-center bolt pattern. Pin or bolt it in place with 5/8-inch hardware (4-1/2 inches long is what we recommend). This is the usual setup on fabricated trailer A-frames.
Square Plate Mount, 4-Bolt (SH-HD4500 series)
A 4-1/2-inch square bolt pattern that bolts straight to a flat plate on the trailer tongue. Four bolts and you are done. You will see this one on factory-built dump and equipment trailers.
Bring Your Own Coupler, or Buy It Bundled
The HD 25K comes as a bare base frame or with a coupler already installed. The 3-inch front channel takes any vertical-channel-mount ball coupler or pintle ring rated up to 25,000 lbs. Bundles we like: the Demco EZ-Latch (DEM-14040-81) at 21K, the Wallace Forge auto-locking at 20K or 25K, or the Shocker SH-P20000-B pintle ring at 20K. One thing to know: your total tow rating can only be as high as the lowest-rated part in the chain, so match your coupler to your trailer GTW.
Why Mount the Air Ride on the Trailer?
Put the air ride on the trailer instead of the truck and every vehicle that hooks up rides better with no setup. That pays off most on fleet trailers pulled by different drivers, rental trailers, equipment trailers shared between operators, and any commercial job where the trailer is the one constant. The HD 25K is the heaviest tongue mount we make, built for end-dump operators, race haulers, equipment fleets, and anyone whose trailer matters more than which truck happens to be pulling it. Backed by the Shocker Hitch 60-day satisfaction guarantee.
$1,243.18
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
