
Shocker Air Ride for Kaufman Gooseneck Trailer - Square 4" Straight Pin, 30K Kingpin – Square 4″ Straight Pin, 30K Kingpin
$2,183.98
$2,284.78 save $100.80
or as low as $182/mo with flexible financing — 4, 6, or 12 months. Options at checkout.
Smooth Air Ride
Patented air-bag suspension absorbs road shock between truck and trailer for a noticeably calmer ride.
Reduces Trailer Sway
Air cushioning keeps the trailer tracking straight through rough pavement, expansion joints, and crosswinds.
1-Year Manufacturer Warranty
Every Shocker Hitch is covered for 365 days against defects in material or workmanship, plus a 60-day satisfaction guarantee.
Fast Installation
Drop-in fit using standard hitch pins — no drilling, welding, or special tools required to install.
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.
Get smoother gooseneck towing every mile. If you a flatbed truck with a low 5th wheel plate and looking for a smoother ride for a gooseneck with a kingpin instead of a ball coupler? Upgrade your gooseneck trailer with a 30.000 lb Gooseneck Surge® air hitch with kingpin design for 5th wheel hitch connection. This allows you to add instant air ride towing to your gooseneck trailer stem and pull it with your favorite truck and kingpin 5th wheel hitch. The air ride Shocker Gooseneck Surge® air hitch to king pin conversion hitch is the ultimate in smooth trailer towing by adding a miniature air suspension system between your truck and trailer to cushion your towing. Fits Kaufman Gooseneck Trailers with a 4" or 100mm (3-15/16") Square Inner Tube Stem with Straight Pin Holes. This patented shock-absorbing cushion hitch is the only air ride hitch to exclusively work in a forward and back motion, which is often times this is the biggest jerk you feel when towing a gooseneck trailer. The built-in air ride system filters the road shock through the air spring bag absorbing the jerks, chucking and bucking. This creates a smoother, safer towing experience for you, your pickup, your trailer & the contents. Upgrade your gooseneck trailer with the smooth towing solution. It also reduces damage along with wear & tear on your trailer, truck & equipment. A normal hard connection your trailer & truck feel every bump, jerk and tug. The shock-absorbing hitch for a gooseneck trailer to king pin coupler is made for smooth and safe towing. This setup is used for hot shot trucking when pulling with a in-bed low profile 5th wheel like on a flat bed pickup truck. Completely replaces your factory gooseneck stem & coupler with the Gooseneck Surge Air system & kingpin. Installs in minutes. Featuring 3 height adjustment holes & extends your hitch 3" forward. Made by Shocker Hitch® USA in Jamestown, ND. Note: Only works with low profile 5th wheel plates like on a flatbed. Not for use with camper 5th wheel plate (it is too tall).
- Safer Smoother Towing: Improves your ride, reduces wear & tear on pickup & trailer. Air Ride Technology with built-in air ride system for a smoother towing experience. Just add air depending on the weight of your trailer and its contents. An air ride system is simply the best cushion device on the planet. Easy Install in Minutes: Completely replaces your factory gooseneck stem & coupler with Gooseneck Surge Air System & Coupler. Installs in Minutes. Reduces Damage & Stress: By reducing wear & tear on driveline & frame. Treat yourself, your equipment & your passengers to a much smoother ride. You’ll never go back to the days of continual bumps, jerks & vibrations. Improves Safety: By giving you improved control of your tow vehicle and trailer. The Gooseneck surge air hitch system allows for better control of your pickup and the trailer it is towing. Adjustable for Tow Weight: The air ride system sits behind your gooseneck hitch and out of the way. You will find the advantage of the Gooseneck Air Shocker is your ability to adjust air pressure for best ride and load control. View our Shocker PSI Air Pressure tuning guide. Heavy loads, just add air. 30,000 lbs to 40,000 lbs Tow & up to 8,000 lbs tongue weight: Patented dual latching Shift Lock® coupler for 2-5/16" or 3" gooseneck ball. (6,000 lbs tongue weight on all 9" offset stems & all demco couplers. 7,000 lbs TW on shift lock coupler on standard air hitch). 30,000 lbs GTW for round stems and up to 40,000 lbs GTW with 8,000 lbs tw for square stem options. Choose for 2-5/16" or 3" gooseneck hitch balls: & has 3 height adjustment holes. (Standard coupler extends 3" forward from your factory coupler or choose 9" extension for short bed pickups. Extender coupler option is great for extra cab clearance.). 2-5/16" coupler is rated at 30,000 lbs GTW and 3" coupler is rated at 40,000 lbs GTW & 8,000 lbs tongue weight. Choose Dual Latching Shift Lock® or Demco Coupler: Patented gooseneck coupler. Shift lock is the only gooseneck coupler that captures ball on both sides. At a glance, you can see if the coupler is locked on the ball. Easy to use handle to hook up and disconnect the coupler from the ball. Patent #'s 11,370,257 B1 & D898,628. Demco ez latch coupler automatically latches on to ball, flip handle up to unhook. Absorbs Road Shock: Helps eliminate tugs, jerks, bangs, chucking & bumps felt when towing on rough roads or concrete highways. Built in air ride system along dual external bump cushions, plus internal bump inside of air spring bag offer heavy duty, yet very smooth performance. Shock Dampening & Absorbing Action: Effectively absorbs the jerking, tugging, bumps and damaging forces experienced when towing on rough roads & concrete highway with a typical hard connection. Custom Fit Thick Wall Heavy Duty Stem Options: Kaufman gooseneck trailers have 100mm (3-15/16") square stems with straight pin holes. (If you have a different stem please let us know). Gooseneck Air Hitch System Includes: Complete Shocker Gooseneck Surge® air hitch with built-in air ride system, replacement inner tube stem & Shift Lock® or Demco gooseneck coupler. Choose for a 2-5/16" or 3" ball. Kingpin option only available for low-profile 5th wheel plates like on flatbed trucks. Not for use with camper 5th wheel plate. Simple Pivot Design: Uses a rocker arm pivot design which produces a front and back motion, much different than other cushion hitches on the market. Our design eliminates the need for parallel linkages, shock absorbers, torsion arms, and other over engineered gadgets. Saves Fuel: Customers using the gooseneck air hitch report saving one mile or more per gallon. Optional Gooseneck Trailer Locks: Shift lock box style coupler & set bolt lock kit is part # SH-GK30P-400GL-BLK. Box style coupler lock is SH-GK340P-BLK. Pad lock style shift lock coupler lock is: SH-9000-Lock and the Demco box lock & set bolt lock is part #SH-GDSP-400GL-BLK. Demco pad lock style option is SH-9100. Set bolt lock, part # SH-400GL-ISP-BLK available and sold separately. Order by Trailer Manufacture: Find your Gooseneck Hitch by Trailer Brand. Not sure what size round gooseneck stem you have? See our gooseneck stem selection guide. Safety Note: Towing capacity is limited by lowest rated component.
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$2,183.98
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
