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

★★★★★ 4.2 49 reviews

$435.23
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$435.23
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Management number 208151968 Release Date 2026/03/22 List Price $174.09 Model Number 208151968
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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

  • 9" Offset Stem & 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 Stem Size: 4.5" Square Straight Pin - Black - Has 2-5/16" Shift Lock Offset Extender Coupler - Fits 4-1/2" Square Stem with Straight Pin Holes- 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 tube. 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 Shocker Hitch
Model Shocker Gooseneck Stem & Coupler
Exterior Painted
Material Carbon Steel
Finish Type Black
Item Weight 77 pounds
Manufacturer Shocker Hitch
OEM Part Number SL-9-45SQ-STR
Special Features 9 inch Offset Extender Coupler, Fits 2-5/16 inch ball, Inner Tube Stem Size: 4.5" Square Straight Pin, Installs in Minutes, Made by Shocker Hitch USA
Item model number SL-9-45SQ-STR
Product Dimensions 35 x 22 x 10 inches
Automotive Fit Type Universal Fit
Vehicle Service Type 4.5" Square Straight Pin, Fits 4-1/2" Square Stem with Straight Pin Holes, Gooseneck Trailer
Manufacturer Part Number SL-9-45SQ-STR

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4.2 out of 5
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49 ratings | 20 reviews
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