Shocker Shift Lock Gooseneck Stem & Coupler for 2-5/16″ Ball
$509.99 CAD
$726.23 save $216.24
or as low as $43/mo with flexible financing — 4, 6, or 12 months. Options at checkout.
SKU: SL-SQ-STR
Checking availability…
The details that matter
Product overview
Adjustable 30,000 lb inner tube gooseneck stem & Shift Lock® coupler for 2-5/16" gooseneck ball. This inner tube replacement gooseneck stem & Shift Lock® gooseneck coupler has heavy duty thick walled round & square inner stem tube options with additional heavy duty plating to weld coupler to stem for long term strength and durability.
What’s included
- Fits Gooseneck Trailers with a 4" or 100mm (3-15/16") Square Inner Tube Stem with Straight Pin Holes.
Full product description
Adjustable 30,000 lb inner tube gooseneck stem & Shift Lock® coupler for 2-5/16" gooseneck ball. This inner tube replacement gooseneck stem & Shift Lock® gooseneck coupler has heavy duty thick walled round & square inner stem tube options with additional heavy duty plating to weld coupler to stem for long term strength and durability.
The patented Shift Lock gooseneck coupler is a direct replacement inner tube stem for your gooseneck trailer.
Fits Gooseneck Trailers with a 4" or 100mm (3-15/16") Square Inner Tube Stem with Straight Pin Holes - Textured Black Powder Coat Finish - 30,000 lbs GTW & 6,000 lbs TW - 4 Adjustment Holes Upgrade your gooseneck trailer with the easy to use, patented dual latching Shift Lock gooseneck coupler for gooseneck trailers.
The shift lock design makes it easy to see if you are locked onto the ball at a glance and is the only gooseneck coupler that captures the ball on both sides. The Shift Lock handle makes it super easy to hook up and disconnect the gooseneck coupler from the ball. The 30K Shift Lock gooseneck coupler fits 2-5/16" hitch balls and is easy, fast, and safe.
We use dual latching simple sliding rods made with alloy steel to lock the ball in place. Works great on gooseneck style trailers; dumps, flatbed, horse, race trailers, and more. Completely replaces your factory stem & coupler with a replacement stem & Shift Lock coupler. Installs in minutes.
All features & technical notes
Features
Replacement Inner Tube Stem & Shift Lock Gooseneck Coupler: Completely replaces your factory gooseneck trailer stem & coupler.
Installs in minutes. (Does not include outer gooseneck tube.) Heavy Duty Thick Wall Design Stem for Superior Strength & Performance: Fits Gooseneck Trailers with a 4" or 100mm (3-15/16") Square Inner Tube Stem with Straight Pin Holes.
Extra Plating for Welded Stem & Coupler Connection: Additional plating to weld coupler to stem for long term strength and durability. Dual Latching Patented 30K Shift Lock® Gooseneck Coupler for 2-5/16" Ball: Patented, game changing design. Dual latching captures both sides of ball. Easy to use handle & see if it's latched at a glance. Patent #'s 11,370,257.
30,000 lbs GTW Towing & 6,000 lbs Tongue Weight Capacity: Built for years of service for the heavy duty gooseneck hauling. Black Powder Coat Finish: Impact resistant textured matte black powder coat finish. Protects your stem from the elements.
Stem has 4 Adjustment Holes & fits 2-5/16" gooseneck hitch balls: Stems have four adjustment holes that are 3/4" diameter and 2-3/4" apart. Includes Inner Gooseneck Stem & Shift Lock Gooseneck Coupler: Includes complete replacement inner tube gooseneck stem & Shift Lock® coupler for 2-5/16" gooseneck ball.
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 lock style coupler lock is: SH-9000-350. Set bolt lock, part # SH-400GL-ISP-BLK available and sold separately. Optional Outer Gooseneck Sleeve/Tube: Does not include a weld-on outer gooseneck sleeve tube.
They are sold separately. The Shift Lock gooseneck coupler is also available on all Gooseneck Surge Air Hitches. Want the shift lock coupler on an gooseneck air hitch? Check out our Gooseneck Surge Air Hitches. Gooseneck couplers for 3" ball available separately.
Installation
Download installation guide (PDF)Not sure this fits your setup?
These take a minute and save a return.
$509.99 CAD
More about this product range
40,000 lb gooseneck coupler for 3″ gooseneck ball with adjustable inner tube stem. Inner square tube replacement gooseneck stem & coupler. The Shift Lock® gooseneck coupler by Shocker Hitch is now available with a direct replacement solid inner tube square stem with Shift Lock coupler. Upgrade your gooseneck trailer with the easy to use, patented dual latching Shift Lock coupler for gooseneck trailers.
It is rated at 40,000 lbs rated and is the only gooseneck coupler that captures ball on both sides. Plus, at a glance, you can gooseneck balls. We have a solution. Our Shift Lock Coupler is easy, fast, and safe. We use dual latching simple sliding rods made with alloy steel to lock the ball in place.
Works great on gooseneck style trailers; dumps, flatbed, horse, race trailers and more. Completely replaces your factory stem & coupler with a replacement square stem & Shift Lock coupler. Installs in minutes.
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
All configurations
| Configuration | SKU | Price |
|---|---|---|
| Square 4″ Straight Pin, Black | SL-SQ-STR | $509.99 |
| Square 4″ Straight Pin, Raw Steel | SL-SQ-STR-RAW | $449.99 |
| Square 3.5″ Blank (No Pin), Raw Steel | SL-35SQ-BLK-RAW | $449.99 |
| Round 4″ Straight Pin, Raw Steel | SL-4RND-STR-RAW | $479.99 |
| Square 4.5″ Straight Pin, Raw Steel | SL-45SQ-STR-RAW | $449.99 |
| Round 3-15/16″ Angled Pin, Raw Steel | SL-100RND-ANG-RAW | $479.99 |
| Round 3-15/16″ Straight Pin, Raw Steel | SL-100RND-STR-RAW | $479.99 |
| Round 4″ Blank (No Pin Hole), Raw Steel | SL-4RND-BLK-RAW | $479.99 |
| Round 4″ Angled Pin, Raw Steel | SL-4RND-ANG-RAW | $479.99 |
| Square with Top Crank, Raw Steel | SL-100SQ-TC-RAW | $579.99 |
| Square 4.5″ Straight Pin, Black | SL-45SQ-STR | $509.99 |
| Round 4″ Angled Pin, Black | SL-4RND-ANG | $539.99 |
| Square 3.5″ Blank (No Pin), Black | SL-35SQ-BLK | $509.99 |
| Round 3-15/16″ Angled Pin, Black | SL-100RND-ANG | $539.99 |
| Round 4″ Blank (No Pin Hole), Black | SL-4RND-BLK | $539.99 |
| Square with Top Crank, Black | SL-100SQ-TC | $639.99 |
| Round 3-15/16″ Straight Pin, Black | SL-100RND-STR | $479.99 |
| Round 4″ Straight Pin, Black | SL-4RND-STR | $419.99 |