Product Description
- Replacement Square Gooseneck Stem & Shift Lock Gooseneck Coupler for 3″ Ball: Completely replaces your factory gooseneck stem & coupler. Installs in minutes.
- Heavy Duty Thick Wall Design Stem for Superior Strength: Replacement stem and coupler available for 4″ or 4.5″ Square tube gooseneck square stems.
- Extra Strong Plating for Welded Stem & Coupler Connection: Additional plating to weld 3″ coupler to stem for long term strength and durability.
- 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.
- Raw Steel or Matte Black Powder Coat: Available in raw steel for you to paint or Impact resistant matte black powder coat finish.
- Stem has 4 Adjustment Holes & Fits 3″ Gooseneck Hitch Balls: 4 Height adjustment holes are 2-3/4″ apart. Coupler is used with 3″ gooseneck hitch balls. 4″ square stem has 3/4″ diameter holes and 4-1/2″ square stem has 1″ diameter holes.
- 4″ or 4.5″ Replacement Inner Square Gooseneck Tubes: Available in multiple inner tube sizes to match common square gooseneck trailer setups including 100mm (3-15/16″), 4″, 4.5″ square stems with straight pin holes along with the 4.5″ diamond c telescoupler stem with bolted pattern.
- Includes Inner Tube Square Stem & Shift Lock Gooseneck Coupler: Includes complete replacement inner square tube gooseneck stem size selected & Shift Lock® gooseneck coupler for 3″ 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 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.
FAQ for Gooseneck Trailer Towing
- Advantages of Gooseneck Air Hitches
- Gooseneck Trailer Chucking
- Do I Have a Gooseneck or 5th Wheel?
- What is Towing Capacity?
- Do I Need an Offset Gooseneck Coupler?
- Shocker Gooseneck Hitch Uses
- Types of Trailers for Towing with a Pickup Truck
- Best Types of Gooseneck Balls
- Why Grease Your Hitch Ball?
- How to Back Up a Gooseneck Trailer?
- How To Level Trailer
- My Truck is Squatting
Heavy-duty 40,000 lb square gooseneck stem & Shift Lock® coupler for 3″ gooseneck ball with adjustable tube stem. Inner square tube replacement gooseneck coupler. Replace or update your gooseneck trailers coupler with the patented dual latching 40K Shift Lock® gooseneck coupler for 3″ ball by Shocker Hitch is now available with a direct replacement inner tube square stem with Shift Lock coupler. 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
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