Shocker Hitch — Air Ride Towing Hitches
ProductsSH-45SQ-STR-SL40-United
Shocker Gooseneck Surge Air Hitch & Coupler - Square Stem Installed
Air Ride

Shocker 40K Air Ride for United Gooseneck Trailer - Square 4.5" Straight Pin, 3" Shift Lock Coupler – Square 4.5″ Straight Pin, 3″ Shift Lock Coupler

$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.

Free shippingShips from Canada1-year warranty60-day returns
Air Ride
Out of Stock
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Patent #11,370,25720,000+ Customers
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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.

Upgrade your heavy duty gooseneck trailer, with a 40,000 lbs gooseneck air hitch & coupler for 3" gooseneck ball. The HD air ride Shocker Gooseneck Surge® air hitch is the ultimate in smooth gooseneck trailer towing to cushion your towing. This patented, revolutionary air ride 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. Filters the bucking and chucking through the air ride system making it smoother every mile. Design for hot shot gooseneck trailer operators and heavy-duty gooseneck trailer towing. Smoother gooseneck towing every mile. Fits United Gooseneck Trailers with a 4.5" (4-1/2") Square Inner Tube Stem with Straight Pin Holes. The built in air ride system filters the road shock through the air ride system creating a smoother, safer towing experience for you, your pickup, gooseneck trailer, cargo & equipment. Increase load control with adjustable air ride and reduces damage on truck, trailer and cargo. Optimized by tow weight. Since you can adjust the air, you can fine tune for tongue weight & best ride for when you are fully loaded or towing an empty trailer. The Shift Lock® gooseneck air coupler captures both sides of the ball and you can easily see if it is locked with a glance. It offers up to 8,000lbs tongue weight. Whether you are a occasionally tow or are doing hotshot trucking, this gooseneck hitch adds instant air ride to your hauling. This is the preferred gooseneck air hitch for hotshot trucking operators and haulers. And considered the one best hot shot trucking accessories. Available for Gooseneck trailers with square tube stems. This shock absorbing, dampening and filtering air ride hitch works great on gooseneck style end dumps, flatbed, race haulers, livestock, toy haulers, tilt, horse trailers and more. Installs in minutes and Completely replaces your factory gooseneck stem & coupler. Featuring 3 height adjustment holes & extends your hitch 3" forward. Made by Shocker Hitch® USA.

  • Safer Smoother Towing with Built in Air Ride for Your United Gooseneck Trailer: Improves your ride, easier on you, your equipment, plus reduces wear & tear on pickup & United trailer. 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 spring bag is simply the best cushion device on the planet. This hitch directs the tow resistance through the air ride system, producing a smooth ride. Patent #'s 11,370,257 B1 & D898,628. Quick & Easy Installation on Your Gooseneck Trailer In Minutes: Completely replaces your factory gooseneck stem & coupler with Gooseneck Surge Air System & Coupler. Installs in Minutes. Shock Dampening & Absorbing Action Make It Easier on You & Equipment: Effectively absorbs the jerking, tugging, bumps & damaging forces experienced when towing on rough roads & concrete highway with a typical hard connection. Helps eliminate jerks, bucking, bangs & chucking felt when towing. 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. Adjustable for Tow Weight - Easily Adjust for Best Ride & Load Control: 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. Reduces Stress, Wear, Tear & Breakage on Truck, Trailer & Cargo: Air ride reduces wear & tear on the driveline and frame. Less stress & breakage on welded. Treat yourself, passengers, animals, & equipment, and your passengers to a much smoother ride. You’ll never go back to the continual bumps, jerks, and vibrations. 30,000 lbs to 40,000 lbs Tow & 7,000 lbs tongue weight: Available with dual latching Shift Lock gooseneck coupler. All 9" offset coupler & demco coupler options have 6,000 lbs TW. 2-5/16" ball shift lock coupler has 30,000 lbs GTW and 3" ball coupler has 40,000 lbs GTW & 8,000 lbs TW. Provides Comfort & Control with Simple Pivot Design: With a smoother ride. Your Shocker air hitch absorbs the thumps, bumps, and jerks you feel when towing your gooseneck trailer. The Gooseneck surge air hitch system allows for better control of your pickup & trailer. 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. 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. 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. Gooseneck Air Hitch System Includes: Complete Shocker Gooseneck Surge® air hitch with built-in air ride system & dual bump cushions, replacement inner tube stem Shift Lock or Demco gooseneck coupler. Choose for 2-5/16" ball, 3" ball or kingpin option. Kingpin option also available for low-profile 5th wheel plates like on flatbed trucks. Not for use with camper 5th wheel plate. Thick Wall Heavy Duty Custom Fit Square Stem: Available for 3-15/16" Square & 4.5" Square stems with straight pin holes for United gooseneck trailers. Saves Fuel: Customers using the gooseneck air hitch report saving one mile or more per gallon. Optional Gooseneck 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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  • 1-Year Manufacturer Warranty
  • 60-Day Returns
  • 20,000+ Customers
  • Ships from Canada