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Ram Gooseneck to 5th Wheel Trailer Coupler Adapter Inner Tube - Square - 30,000 lbs - KPG5-Q30IP

Our Price: $234.13
(781)
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King pin coupler allows you to pull your gooseneck trailer with a fifth-wheel hitch. The height easily adjusts to fit your application. Square inner tube. application Sturdy steel construction Heavy-duty load-bearing pin (GCPN-PIN) sold separately SAE J2638 compliant Specs: Tube width: 3-15/16" Range of vertical adjustment: 8" 2-11/16" From center
  • Gooseneck Trailer to 5th Wheel Hitch
  • Replaces Inner Tube
  • etrailer
  • Not Shock Absorbing
  • Adapts Trailer
  • 30000 lbs GTW
  • No Extra Clearance

Buyers Products 2" Forged SAE Trailer King Pin with 1/2" Bolster Plate - Weld On

Retail: $114.99
Our Price: $78.10
(69)
In Stock
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  • Buyers Products
  • King Pin Only

Gooseneck to 5th Wheel Trailer Coupler Adapter - Inner Tube - Square - 25,000 lbs - KPG5-Q25-IP

Our Price: $202.53
(781)
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King pin coupler allows you to pull your gooseneck trailer with a fifth-wheel hitch. The height easily adjusts to fit your application. Square inner tube is included. application Sturdy steel construction Heavy-duty, load-bearing pin (GCPN-PIN) is sold separately SAE J2638 compliant Specs: Tube width: 4" Range of vertical adjustment: 8" 2-11/16" From center of
  • Gooseneck Trailer to 5th Wheel Hitch
  • Replaces Inner Tube
  • etrailer
  • Not Shock Absorbing
  • Adapts Trailer
  • 25000 lbs GTW
  • No Extra Clearance

Buyers Products 2" Forged SAE Trailer King Pin with 1/4" Bolster Plate - Weld On

Retail: $121.53
Our Price: $84.79
(69)
In Stock
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  • Buyers Products
  • King Pin Only

Buyers Products 2" Forged SAE Trailer King Pin with 1/2" Bolster Plate - Bolt On

Retail: $175.87
Our Price: $94.90
(69)
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This 2" king pin provides strength and reliability in coupling your fifth wheel. Forged from AISI 8630 steel and heat treated to maintain a hardness of 302-363 BHN and 150,000 PSI in ultimate ...
Features: King pin provides strength and reliability in coupling your fifth wheel Forged from AISI 8630 Steel Heat treated to create and maintain a hardness of 302-363 BHN Forged steel construction

  • Buyers Products
  • King Pin Only

New Arrivals — From Our Shop to You!

Chosen by folks who live and breathe this, just like you.

New Arrivals — From Our Shop to You!

Chosen by folks who live and breathe this, just like you.

Kristin
Kristin etrailer team member
Kristin etrailer team member

15

Years

|

589

Installations

15,864

Customers Helped

Any questions? Chat us from Missouri

New
TowSmart Hitch Receiver Locking Pin w/Cap - 1/2" and 5/8" Diameter
TowSmart Hitch Receiver Locking Pin w/Cap - 1/2" and 5/8" Diameter
(13)

$18.08

New
TowSmart Hitch Receiver Locking Pin w/Cap - 1/2" and 5/8" Diameter - Stainless Steel
TowSmart Hitch Receiver Locking Pin w/Cap - 1/2" and 5/8" Diameter - Stainless Steel
(13)

$28.41

Buyers Products 2" Forged SAE Trailer King Pin with 3/8" Bolster Plate - Weld On

Retail: $107.51
Our Price: $88.04
(69)
In Stock
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  • Buyers Products
  • King Pin Only

B&W Defender Locking Gooseneck Coupler Inner Tube - Round - 2-5/16" Ball - 25,000 lbs - BWGNC4250

Our Price: $340.00
(27)
In Stock
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Pair this inner tube assembly with an existing outer tube for a gooseneck coupler that latches and locks automatically. Built-in lock can be engaged when trailer is coupled and when trailer is unattached. Oversize, cone-shaped funnel eases hookup. Limited lifetime warranty With the Defender gooseneck coupler from B&W, you get the best of both worlds. Not only does this coupler make hookup an absolute snap, but it also defends against trailer
  • Round Tube
  • 2-5/16 Inch Gooseneck Ball
  • B and W
  • Coupler with Inner Tube Only
  • 25000 lbs GTW

Trailair Rota-Flex 5th Wheel Pin Box - Lippert 1621 or 1621HD - 18,000 lbs

Retail: $876.95
Our Price: $718.18
(84)
In Stock
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This Rota-Flex pin box has a pivoting head with a built-in rubber compound that works to reduce chucking and absorb road shock, resulting in a smoother ride and less wear and tear on your trailer ...
Features: Pivoting pin box replaces standard pin box on your 5th-wheel trailer to improve handling and limit strain on the truck and trailer Minimizes chucking by allowing controlled movement of king
  • Absorbs Road Shock and Reduces Chucking
  • Air Ride Suspension
  • CURT
  • Upgraded Pin Box
  • 18000 lbs GTW
  • Lippert 1621
  • Lippert 1621HD

Curt Air Ride 5th Wheel Pin Box - Lippert 1621 & 1621HD - 21,000 lbs

Retail: $1,701.93
Our Price: $1,296.48
(82)
In Stock
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Enjoy smooth, stable towing with your fifth-wheel trailer by replacing your ordinary pin box with this air-ride-equipped model. An internal air bag and built-in strut absorb road shock so that you ...
down Black powder coat provides rust resistance Sturdy steel construction King pin connects to any 5th-wheel trailer hitch Bolt-on installation with no assembly required Made in the USA Specs: Designed
  • Absorbs Road Shock and Reduces Chucking
  • Air Ride Suspension
  • Lippert
  • Upgraded Pin Box
  • 21000 lbs GTW
  • Lippert 1621HD
  • Lippert 1621

Convert-A-Ball Cushioned 5th-Wheel-to-Gooseneck Adapter w/ Offset - 12" to 16" Tall - CAB-C5GX1216

Retail: $964.69
Our Price: $796.30
(969)
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Use your gooseneck hitch to tow your 5th-wheel trailer by hooking up with this coupler adapter. Poly cushions absorb shock for a smooth ride. Adjustable height fits multiple applications. Offset design is perfect for short-bed pickups. 20,000-lb GTW.Features: 5th-Wheel-to-gooseneck adapter lets you tow your 5th-wheel trailer with your gooseneck hitch Coupler bolts to your trailer's king pin and connects to gooseneck ball Interior
  • 5th Wheel Trailer to Gooseneck Hitch
  • Bolts Over King Pin
  • Convert-A-Ball
  • Shock Absorbing
  • Adapts Trailer
  • 20000 lbs GTW
  • Provides Extra Clearance

Ranch Hitch Universal 5th-Wheel-to-Gooseneck Coupler Adapter - AM3100

Retail: $634.99
Our Price: $599.98
(208)
In Stock
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Don't say goodbye to your truck bed. Instead, say hello to the Ranch Hitch fifth-wheel-to-gooseneck coupler adapter. It offers 24,000 lbs towing capacity with 3" vertical adjustment for towing a fifth-wheel trailer with a gooseneck hitch. limited warranty Notes: This adapter is designed to be used with standard pin boxes only. Do not use with a cushioned or air ride pin box. Any adapter that attaches in this way may void your trailer's
  • 5th Wheel Trailer to Gooseneck Hitch
  • Bolts Over King Pin
  • Andersen
  • Not Shock Absorbing
  • Adapts Trailer
  • 24000 lbs GTW
  • No Extra Clearance

Ranch Hitch Universal 5th-Wheel-to-Gooseneck Coupler Adapter w/8" Offset for Short-Bed Trucks - AM3139

Retail: $634.99
Our Price: $599.98
(208)
In Stock
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Don't say goodbye to your truck bed. Instead, say hello to the Ranch Hitch fifth-wheel-to-gooseneck coupler adapter. The 8" offset allows more clearance between truck and trailer for short-bed trucks. 24,000 lbs GTW and 6,000 lbs TW. separately 1-Year limited warranty Notes: This adapter is designed to be used with standard pin boxes only. Do not use with a cushioned or air ride pin box. Do not use with an offset gooseneck ball Any adapter
  • 5th Wheel Trailer to Gooseneck Hitch
  • Bolts Over King Pin
  • Andersen
  • Not Shock Absorbing
  • Adapts Trailer
  • 24000 lbs GTW
  • Provides Extra Clearance

Convert-A-Ball Cushioned 5th-Wheel-to-Gooseneck Adapter - 12" to 16" Tall - 20,000 lbs - CAB-C5G

Retail: $701.92
Our Price: $554.00
(969)
In Stock
Add to Cart
Use your gooseneck hitch to tow your 5th-wheel trailer by hooking up with this adjustable coupler adapter. Poly cushions absorb shock for a smooth ride. Adjustable height fits multiple applications. 20,000-lb GTW.Features: 5th-Wheel-to-gooseneck adapter lets you tow your 5th-wheel trailer with your gooseneck hitch Coupler bolts to your trailer's king pin and connects to gooseneck ball Interior
  • 5th Wheel Trailer to Gooseneck Hitch
  • Bolts Over King Pin
  • Convert-A-Ball
  • Shock Absorbing
  • Adapts Trailer
  • 20000 lbs GTW
  • No Extra Clearance

MORryde Cushioned 5th Wheel Pin Box for 14K to 18K Trailers w/ Lippert 1621 and 1621HD

Retail: $949.45
Our Price: $799.99
(225)
In Stock
Add to Cart
Upgrade the factory pin box on your fifth-wheel trailer to this cushioned model that dampens road shock and reduces back-and-forth chucking for a more relaxed towing experience. Unlike air bags, the ...
installation no drilling required King pin sits in same location as factory king pin Made in the USA Specs: Application: 5th-wheel trailers with 14,001-lb - 18,000-lb GVWR (maximum loaded weight) Designed to
  • Reduces Chucking
  • Rubber Spring Suspension
  • MORryde
  • Upgraded Pin Box
  • 21000 lbs GTW
  • Lippert 1621
  • Lippert 1621HD

Gooseneck to 5th Wheel Trailer Coupler Adapter - Round - 30K - KPG5-R30IP

Retail: $188.28
Our Price: $178.07
(781)
In Stock
Add to Cart
King pin coupler allows you to pull your gooseneck trailer with a fifth-wheel hitch. The height easily adjusts to fit your application. Round inner tube is included. application Heavy-duty load-bearing pin (GCPN-PIN) sold separately Sturdy steel construction SAE J2638 compliant Specs: Tube diameter: 4" Range of vertical adjustment: 8" 2-11/16" From center of
  • Gooseneck Trailer to 5th Wheel Hitch
  • Replaces Inner Tube
  • etrailer
  • Not Shock Absorbing
  • Adapts Trailer
  • 30000 lbs GTW
  • No Extra Clearance

Trailair Air Ride 5th Wheel Pin Box - Lippert 1116 - 21,000 lbs

Retail: $2,004.67
Our Price: $1,441.75
(83)
In Stock
Add to Cart
Enjoy smooth, stable towing with your fifth-wheel trailer by replacing your ordinary pin box with this air-ride-equipped model. An internal air bag and built-in strut absorb road shock so that you ...
down Black powder coat provides rust resistance Sturdy steel construction King pin connects to any 5th-wheel trailer hitch Bolt-on installation with no assembly required Made in the USA Specs: Designed
  • Absorbs Road Shock and Reduces Chucking
  • Air Ride Suspension
  • Lippert
  • Upgraded Pin Box
  • 21000 lbs GTW
  • Lippert 1116

Curt Flex Air 5th Wheel Pin Box - Lippert 1621 - 21,000 lbs

Retail: $2,062.95
Our Price: $1,667.76
(186)
In Stock
Add to Cart
... . Replaces Lippert 1621 pin boxes. rebounds - keeps air bag from breaking down Pivoting head limits chucking by allowing controlled movement of the king pin within your hitch Rubber compound built into the head absorbs road shock Reduces wear
  • Absorbs Road Shock and Reduces Chucking
  • Air Ride Suspension
  • CURT
  • Upgraded Pin Box
  • 21000 lbs GTW
  • Lippert 1621

Gen-Y Hitch Shock Absorbing 5th Wheel Pin Box - Lippert 1621/1621HD - 30K - 4.5K TW

Retail: $1,824.58
Our Price: $1,179.82
(82)
In Stock
Add to Cart
This shock-absorbing pin box provides a smooth, safe ride while you tow your fifth-wheel trailer. The all-in-1 box has no air bags to refill or small parts to replace. 4.5K Pin weight.Features: 5th-Wheel king pin box upgrades the existing pin box on your 5th-wheel trailer King pin inserts into your truck's 5th-wheel hitch Shock-absorbing design ensures a smooth, steady ride
  • Absorbs Road Shock and Reduces Chucking
  • Torsion Suspension
  • Gen-Y Hitch
  • Upgraded Pin Box
  • 30000 lbs GTW
  • Lippert 1621
  • Lippert 1621HD

MORryde Cushioned 5th Wheel Pin Box for 18K to 23K Trailers w/ Lippert 1621SHD

Retail: $1,000.98
Our Price: $799.99
(225)
In Stock
Add to Cart
Upgrade the factory pin box on your fifth-wheel trailer to this cushioned model that dampens road shock and reduces back-and-forth chucking for a more relaxed towing experience. Unlike air bags, the ...
installation no drilling required King pin sits in same location as factory king pin Made in the USA Specs: Application: 5th-wheel trailers with over 18,000-lb GVWR (maximum loaded weight) Designed to replace
  • Reduces Chucking
  • Rubber Spring Suspension
  • MORryde
  • Upgraded Pin Box
  • 23000 lbs GTW
  • Lippert 1621SHD

Gen-Y Hitch Shock Absorbing 5th Wheel to Gooseneck Pin Box - Lippert 1621/1621HD - 30K GTW - 4.5K TW

Retail: $2,549.25
Our Price: $1,725.97
(236)
In Stock
Add to Cart
This shock-absorbing pin box works with your gooseneck hitch to give a smooth ride while you tow your fifth-wheel trailer. The all-in-1 box has no air bags to refill or small parts to replace ...
box. But adding a new component to your setup can keep your pin box from working how it was designed. King pin adapters can create a stiff ride and can even strain your fifth wheel's frame by adding
  • 5th Wheel Trailer to Gooseneck Hitch
  • Replaces Pin Box
  • Gen-Y Hitch
  • Shock Absorbing
  • Adapts Trailer
  • 30000 lbs GTW
  • Lippert 1621HD
  • Lippert 1621
  • No Extra Clearance

Shocker 5th Wheel to Gooseneck Pinbox for Lippert 1621/0719 and Rhino Box - 24K GTW - 6K TW - SHK23MR

Retail: $1,799.98
Our Price: $1,629.98
(15)
Add to Cart
Tow your fifth-wheel trailer with your gooseneck hitch and get the smooth ride that only an air-ride-equipped coupler can deliver. This goosebox and coupler adapter kit has a built-in air bag and ...
Features: 5th-Wheel-to-gooseneck adapter kit lets you tow your 5th-wheel trailer with your gooseneck hitch Heavy-duty goosebox replaces Lippert 1621, 0719 or Rhino pin boxes Coupler attaches to your
  • 5th Wheel Trailer to Gooseneck Hitch
  • Replaces Pin Box
  • Shocker Hitch
  • Shock Absorbing
  • Adapts Trailer
  • 24000 lbs GTW
  • Lippert 1621
  • Lippert 0719
  • Lippert Rhino
  • No Extra Clearance

MORryde Cushioned 5th Wheel Pin Box for Trailers under 11,500 w/ Lippert Rhino

Retail: $899.99
Our Price: $797.79
(225)
In Stock
Add to Cart
Upgrade the factory pin box on your fifth-wheel trailer to this cushioned model that dampens road shock and reduces back-and-forth chucking for a more relaxed towing experience. Unlike air bags, the ...
installation no drilling required King pin sits in same location as factory king pin Made in the USA Specs: Application: 5th-wheel trailers with 11,500-lb or less GVWR (maximum loaded weight) Designed to replace
  • Reduces Chucking
  • Rubber Spring Suspension
  • MORryde
  • Upgraded Pin Box
  • 11500 lbs GTW
  • Lippert Rhino

5th Airborne Premium 5th Wheel Air Ride King Pin with Sidewinder - No Turret - 16,000 lbs

Retail: $2,480.80
Our Price: $1,511.82
(192)
In Stock
Add to Cart
Connect the turret portion (sold separately) of the sidewinder to this arm assembly to create a complete 5th Airborne sidewinder, which will enable you to easily make up to 90-degree turns. The built-in air bag both cushions and supports your load. forward for light tongue weights Move backward for heavy tongue weights King pin connects to standard 5th-wheel trailer hitch and allows easy hookup and disconnect at any angle 1-Piece, streamlined
  • Provides Turning Clearance
  • Absorbs Road Shock and Reduces Chucking
  • Air Ride Suspension
  • Reese
  • Upgraded Pin Box
  • 16000 lbs GTW

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