Shocker Shift Lock Replacement Gooseneck Stem & Coupler for 3" Ball - 3-15/16" Square Top Crank - 40,000 lbs - Adjustable - Finish: Black

★★★★☆ 4.0 51 reviews

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$509.99
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Management number 212811042 Release Date 2026/04/06 List Price $204.00 Model Number 212811042
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Heavy-duty 40,000 lb square gooseneck stem coupler for 3" gooseneck ball with adjustable inner tube stem. Inner square tube replacement gooseneck stem & coupler. Replacement square stem & coupler for gooseneck trailers. The Shift Lock™ gooseneck coupler 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, 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. The Shift Lock coupler is also available on all Gooseneck Air Hitches. Patent # 11,370,257 B1California Residents: Prop 65 Warning

  • Heavy Duty Square Inner Stem with 3" Gooseneck Ball Coupler, Thick Walled Replacement gooseneck stem & coupler - Inner Tube Stem with Coupler. (Optional Gooseneck Locks: Coupler lock for shift lock gooseneck, part #SH-GK340P-BLK and set bolt locks, part # SH-400GL-ISP-BLK available & sold separately).
  • 40K Shift Lock Dual Latching Coupler: Patented, game changing Gooseneck coupler 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
  • Extra Plating for Welded Stem & Coupler Connection: Additional plating to weld coupler to stem for long term strength and durability. Replacement Stem & Coupler fits 3" gooseneck hitch balls & has 4 Height Adjustment. Adjustment Holes are 2-3/4" apart. Choose Raw Steel or Impact resistant matte black powder coat finish.
  • 40,000 lbs towing & 8,000 lbs tongue weight rating. Comes with a Patented 40K dual latching shift lock coupler for 3 inch hitch ball.
  • Inner Stem Size: 3-15/16" Square Top Crank - Finish: Black - Replaces Stems with Top Crank Handle Only - Includes complete replacement gooseneck inner stem & 40k shift lock gooseneck coupler for 3 inch ball. Made in the USA by Shocker Hitch Jamestown, North Dakota. (Optional Outer Gooseneck Square Sleeve Tube: Does not include weld on outer gooseneck square sleeve tube. They are sold separately.)
Brand Name Shocker Hitch
Finish Type Powder Coated
Item Weight 64 Pounds
Manufacturer Shocker Hitch
Model Number SL-100SQ-TC-SL40
Material Type Alloy Steel, Outer Material (Powder Coated Steel)
Item Type Name Goooseneck Hitch
Manufacturer Part Number SL-100SQ-TC-SL40
OEM Equivalent Part Number SL-100SQ-TC-SL40
Compatible with Vehicle Type Finish: Black, Fits 3 inch Gooseneck Ball, Fits Gooseneck Trailer, Inner Stem Size: 3-15/16" Square Top Crank, Replacement Stem & Coupler, Replaces Stems with Top Crank Handle Only
Manufacturer Warranty Description Shocker Hitch Guarantee & Warranty Policy: Limited Warranty covers any defects in material or workmanship under normal use for One Year from original date of purchase. During the Warranty Shocker Hitch will repair or replace, at no charge, the Shocker Hitch, or parts of the Shocker Hitch, that are defective because of improper material or workmanship, under normal use & maintenance. What you need to do to for warranty? Call us to determine the problem & find the most appropriate solution. Please provide proof of purchase. Customer is responsible for shipping costs incurred from returning defective product to Shocker Hitch. Any returned product that is replaced or refunded becomes the property of Shocker Hitch. What does this limited warranty not cover? Shipping costs incurred to repair or replace the hitch. Damage incurred while in transit to Shocker Hitch for warranty. Any finish such as, paint, powder coating, electroplating, etc.,on the hitch. Normal wear & tear of hitch under proper use. Labor or service charges involved in replacing any hitch. Damage resulting from abuse, neglect, misuse, or any accident. Product which is improperly installed, overloaded, modified, or altered. Loss of time, expense, vehicle use, other vehicle damage, replacement rental, lodging, or any incidental cost. Damage resulting from improper maintenance. Damage resulting from theft of a product, improper use or modification, loss of a product or natural disasters.

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