• This is a used, like-new gooseneck stem & shift lock coupler that was returned to the factory for whatever reason, generally due to misordering the stem & pin hole type. It may have slight nicks on the finish. Otherwise, it is a brand new gooseneck hitch & coupler.
• Completely Replaces Your Factory Inner Tube Stem & Coupler: Watch: Installs in minutes
• Heavy Duty Thick Wall Design Stem: Available for 100mm & 4" Round, 100mm & 4" Square, 4.5" Square & Top crank style gooseneck stems.
• Extra Plating for Welded Stem & Coupler Connection: Additional plating to weld coupler to stem for long-term strength and durability.
• 30K Shift Lock® Coupler: Patented, game-changing design. Dual latching, captures both sides of the ball. Easy-to-use handle & see if it’s latched at a glance. Patent #: 11,370,257.
• 30,000 lbs towing & 6,000 lbs tongue weight capacity: Built for heavy-duty gooseneck hauling.
• Finish Options: Choose raw steel, impact-resistant textured matte black or red powder coat finish.
• Fits 2-5/16" gooseneck hitch balls: Gooseneck couplers for 3" ball available separately.
• 4 Adjustment Holes: Stems with holes have 4 adjustment holes that are 2-3/4" apart.
• Easy Installation: Includes complete replacement inner tube gooseneck stem & Shift Lock® coupler (Does not include outer gooseneck tube.)
• Includes Both Stem & Gooseneck Coupler: Includes complete replacement inner tube, gooseneck stem & Shift Lock® coupler.
• Not sure what size round gooseneck stem you have? Check out our gooseneck stem selection guide.
• Optional Gooseneck Locks: Box style coupler & set bolt lock kit is part # SH-GK30P-400GL-BLK. Box style coupler lock is SH-GK340P-BLK. Padlock coupler style is SH-9000-Lock. Handle-style coupler lock is SH-651P, and the 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 coupler is also available on all Gooseneck Surge Air Hitches.  Want the shift lock coupler on a gooseneck air hitch? Check out our Gooseneck Surge Air Hitches.

Round Tube Pin & Sizing Guide

Note: Pin angle refers to the angle the pin goes through the stem, left to right, or 0 degrees is Straight across, which is very rare. The more common ANGLED pins have the pin coming out slightly back on the driver’s side & forward on the other side. See fitment guide

This is a used, like-new gooseneck stem & coupler that was returned to the factory for whatever reason, generally due to misordering the stem & pin hole type. It may have slight nicks on the finish. Otherwise, it is a brand new gooseneck hitch & coupler.

30,000 lb gooseneck stem & coupler for 2-5/16" gooseneck ball with adjustable inner tube stem. Inner tube replacement gooseneck stem & coupler. Thick-walled round & square inner stem tube options with additional heavy-duty plating to weld the coupler to the stem for long-term strength and durability. The patented Shift Lock® gooseneck coupler by Shocker Hitch is now available with a direct replacement inner tube stem for your gooseneck trailer. Upgrade your gooseneck trailer with the easy-to-use, patented dual-latching Shift Lock coupler for gooseneck trailers. The shift lock design makes it easy to see if you are locked onto the ball at a glance.  It is rated at 30,000 lbs 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 Coupler fits 2-5/16" hitch balls. 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. Available in red or matte black textured, impact-resistant powder coat finish, or choose raw steel and paint it yourself. Works great on gooseneck-style trailers; dumps, flatbed, horse, race trailers, and more. Round & Square gooseneck stem & coupler options can be ordered in raw steel or impact-resistant textured matte black or red powder coat finish. Completely replaces your factory stem & coupler with a replacement stem & Shift Lock coupler. Watch: Installs in minutes

The Shift Lock coupler is also available on all Gooseneck Air Hitches.

Patent # 11,370,257 B1

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