
Shocker 40K Square Gooseneck Stem & Coupler for 3" Ball - 40,000 lbs - Square 4" Straight Pin, Black
$519.99 CAD
$767.73 save $247.74
or as low as $44/mo with flexible financing — 4, 6, or 12 months. Options at checkout.
SKU: SL-SQ-STR-SL40
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The details that matter
Product overview
Heavy-duty adjustable 4" square gooseneck stem & Shift Lock® coupler for 3" gooseneck ball. Inner 4" square tube replacement gooseneck coupler that fits into a 4-1/2" outer stem tube on a gooseneck trailer.
What’s included
- Includes complete replacement inner square tube gooseneck stem to replace 4" or 100mm (3-5/16") stems along with Shift Lock® gooseneck coupler for 3" gooseneck ball.
Full product description
Heavy-duty adjustable 4" square gooseneck stem & Shift Lock® coupler for 3" gooseneck ball. Inner 4" square tube replacement gooseneck coupler that fits into a 4-1/2" outer stem tube on a gooseneck trailer. Replace or update your gooseneck trailers coupler with the patented dual latching 40K Shift Lock gooseneck coupler for 3" ball by Shocker Hitch.
Replaces 4" or 100mm (3-15/16") square stem with straight pin holes. Stem offers 4 height adjustment holes that are 3/4" in diameter for the safety pin holes. Featuring a matte black textured powder coat finish. Upgrade your gooseneck trailer with the easy to use, 3" Shift Lock gooseneck coupler for gooseneck trailers.
This is built heavy duty and is rated at 40,000 lbs GTW with 8,000 lbs tongue weight. The Shift Lock gooseneck coupler that captures ball on both sides. Plus, at a glance, you can see if it's locked onto the ball. Just use the shifter handle to lock it on to the ball or to release it from the gooseneck ball.
The dual latching rods are made with 3/4" diameter 1045 steel to lock the ball in place. Works great on gooseneck style trailers; dumps, equipment, flatbed, race trailers and more. Completely replaces your factory stem & gooseneck coupler. Installs in minutes. Patent # 11,370,257 B1. Made by Shocker Hitch® USA in Jamestown, ND
All features & technical notes
Features
4" Square Gooseneck Stem & Shift Lock Gooseneck Coupler for 3" Ball: Inner 4" square tube replacement gooseneck coupler that fits into a 4-1/2" outer stem tube on a gooseneck trailer. Completely replaces your factory gooseneck stem & coupler. Installs in minutes. Featuring a textured matte black powder coat finish.
4" Stem has 4 Adjustment Holes & Fits 3" Gooseneck Hitch Balls: Replaces 4" or 100mm (3-15/16") square stem with straight pin holes. Stem offers 4 height adjustment holes that are 3/4" in diameter for the safety pin holes.
Includes Inner Tube Square Stem & 3" Shift Lock Gooseneck Coupler: Includes complete replacement inner square tube gooseneck stem to replace 4" or 100mm (3-5/16") stems along with Shift Lock® gooseneck coupler for 3" gooseneck ball. Patented 40K Shift Lock® Dual Latching Coupler for 3" Ball: Patented game changing design.
Dual latching design 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 40,000 lbs GTW & 8,000 lbs Tongue Weight: Built for heavy-duty gooseneck towing to provide years of performance.
Heavy Duty Thick Walled Stem with Extra Strong Plating for Welded Stem & Coupler Connection: Stems are thick walled with additional plating for superior strength to weld 3" coupler to stem for long term strength and durability. Optional Shift Lock Gooseneck Locks: Box style coupler & set bolt lock kit is part # SH-GK30P-400GL-BLK.
Box style coupler lock is SH-GK340P-BLK. Puck style coupler lock is: SH-9000-350. Set bolt lock, part # SH-400GL-ISP-BLK available and sold separately. Optional Outer Gooseneck Square Sleeve Tube: Does not include weld on outer gooseneck square sleeve tube. They are sold separately. The Shift Lock coupler is also available on Gooseneck Surge Air Hitches.
Installation
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$519.99 CAD
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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.
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