Shocker Shift Lock® Gooseneck Stem & 9" Extension Coupler for 2-5/16" Ball - Square 4.5" Straight Pin - Raw Steel - 30,000 lbs - Adjustable

★★★★★ 4.2 71 reviews

$397.48
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Management number 215345606 Release Date 2026/04/12 List Price $158.99 Model Number 215345606
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Extend your Gooseneck trailer hookup 9 inches forward with our replacement Shocker gooseneck 9" offset extension coupler adapter with 30,000 lbs Shift Lock® gooseneck coupler for 2-5/16" gooseneck ball. Great for short bed pickup trucks pulling gooseneck trailers. This inner tube stem is available for round and square stem gooseneck trailers. This offset extended gooseneck stem features heavy-duty thick wall inner tube & 9" extender coupler has HD dual gusset supports and top coupler collar plating steel make it super strong and heavy-duty with a 30,000 lbs GTW & 6,000 lbs Tongue Weight. The inner stem & coupler is super easy to install and the Shift Lock™ gooseneck coupler is rated at 30,000 lbs GTW. This patented dual latching gooseneck coupler is the only one on the market that captures ball on both sides. Plus, at a glance, you can see if the gooseneck coupler is locked on the ball. The Shift Lock level 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" gooseneck hitch balls. We use dual latching simple sliding rods made with alloy steel to lock the ball in place. Works great for short bed pickup trucks with you're pulling and towing gooseneck style trailers; dumps, flatbed, horse, race trailers and more. Available in raw steel, matte black textured or red textured premium impact resistant powder coat finish. Completely replaces your factory gooseneck inner stem & coupler with a 9" off set 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

  • Replacement Stem with 9" Offset Extension Shift Lock Gooseneck Coupler: Extends Gooseneck Coupler 9" Forward, ideal for short bed trucks pulling gooseneck trailers. Dual Gusset Supports & Collar Plating Steel for Coupler: Offset extender gooseneck hitch is built super strong at extends your gooseneck coupler 9 inches. Heavy Duty thick wall design stem: Available for 100mm & 4" Round, 100mm & 4" Square, 4.5" Square & Top crank style gooseneck stems.
  • 30,000 lbs towing & 6,000 lbs tongue weight capacity. 30K Shift Lock® Coupler: 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. Built for the heavy duty gooseneck hauling. Available in Raw Steel or Impact resistant matte black textured powder coat finish.
  • Fits 2-5/16" gooseneck hitch balls. Stems with Holes offer 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.)
  • Inner Gooseneck Tube Stem Size: Square 4.5" Straight Pin - Raw Steel - Fits 4-1/2" Square Stems with Straight Safety Pin Holes - Has 2-5/16" Shift Lock Offset Extender Coupler - Includes complete replacement gooseneck inner stem & 30k shift lock 9" offset extender gooseneck coupler for 2-5/16 inch ball. Made in the USA by Shocker Hitch Jamestown, North Dakota. (Optional Outer Gooseneck Sleeve/Tube: Does not include weld on outer gooseneck sleeve. They are sold separately)
  • Completely replaces your factory inner tube stem & coupler: Installs in minutes. Optional Gooseneck Locks: Coupler lock for shift lock gooseneck, part #SH-GK340P-BLK or SH-651P and set bolt lock, part # SH-400GL-ISP-BLK available & sold separately.
Brand Name Shocker Hitch
Finish Type Raw Steel
Item Weight 75 Pounds
Manufacturer Shocker Hitch
Model Number SL-9-45SQ-STR-RAW
Material Type Carbon Steel
Item Type Name Gooseneck Hitch
Automotive Fit Type Universal Fit
Included Components Inner Gooseneck Stem & 9" Extender Gooseneck Shift Lock Coupler for 2-5/16" Ball, Square 4.5" Straight Pin - Fits 4-1/2" Square Stems with Straight Safety Pin Holes
Manufacturer Part Number SL-9-45SQ-STR-RAW
OEM Equivalent Part Number SL-9-45SQ-STR-RAW
Compatible with Vehicle Type Fits 4-1/2" Square Stems with Straight Safety Pin Holes, Gooseneck Trailer, Inner Tube Stem Size:
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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