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Lippert 1621 5th Wheel Pin Box - 15,500 lbs

Lippert 1621 5th Wheel Pin Box - 15,500 lbs

Item # LC1191191

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Fifth Wheel King Pin

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Shipping Weight: 108 lbs

Fifth Wheel King Pin LC1191191 - Fixed Turret - Lippert Components
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Product Images

  • 1621
  • Lippert
  • 15500 lbs GTW
  • Pin Box Replacement
  • Lippert Components
  • Fixed Turret
  • Non-Cushioned
This pin box serves as a direct replacement for the worn-out Lippert 1621 pin box on your fifth-wheel trailer or RV. Rust-resistant, powder coated steel construction. Easily bolts onto trailer with existing hardware. Call 800-298-8924 to order Lippert Components fifth wheel king pin part number LC1191191 or order online at Free expert support on all Lippert Components products. Guaranteed Lowest Price and Fastest Shipping for Lippert 1621 5th Wheel Pin Box - 15,500 lbs. Fifth Wheel King Pin reviews from real customers.

  • All Info
  • Reviews (1)
  • Q & A (17)
  • Photos
  • Why etrailer?

Lippert Components Fifth Wheel King Pin - LC1191191

This pin box serves as a direct replacement for the worn-out Lippert 1621 pin box on your fifth-wheel trailer or RV. Rust-resistant, powder coated steel construction. Easily bolts onto trailer with existing hardware.


  • Pin box serves as a direct replacement for the worn or damaged Lippert 1621 pin box on your 5th-wheel trailer
  • King pin connects to any 5th-wheel trailer hitch
  • Durable steel construction
  • Black powder coat resists rust
  • Bolt-on installation
    • Attaches to trailer frame with existing hardware
    • Bolts into place along 2 rows of bolt holes
  • Assembly hardware included
  • Made in the USA


  • Weight capacity: 15,500 lbs
  • 1-Year limited warranty

Diagram of measurements for the Lippert 1621 pin box

1191191 Lippert Components (LCI) 1621 Standard Fifth Wheel Kingpin - 15.5K

This Product Fits The Following Vehicles

2019 - 2019 Forest River Sabre Fifth Wheel 36BHQ

2016 - 2016 Jayco Pinnacle Fifth Wheel 36KPTS Luxury

Customer Reviews

Lippert 1621 5th Wheel Pin Box - 15,500 lbs - LC1191191

Average Customer Rating:  5.0 out of 5 stars   (1 Customer Reviews)

This pin box serves as a direct replacement for the worn-out Lippert 1621 pin box on your fifth-wheel trailer or RV. Rust-resistant, powder coated steel construction. Easily bolts onto trailer with existing hardware.

- LC1191191

Hitch king pin box was a perfect fit and installed easily. I just finished hauling the trailer with it on a 5000 mile trip and it worked flawlessly. 438373


Ive taken a couple more trips with it and its still working perfectly a year later. Id highly recommend it.

Jack D - 10/01/2018


Ask the Experts about this Lippert Components Fifth Wheel King Pin
Do you have a question about this Fifth Wheel King Pin?

  • Easy Way to Tell Difference Between Lippert 1621 and 1716 Pin Boxes
  • Easiest way it to measure vertically between the mounting holes of the pin box. If they are 2 inches apart up and down then you have a 1621. If that distance is instead 2-1/2 inches then you have a 1716. The part # LC1191191 that you referenced is for a 1621 pin box. For a 1716 instead you would need the part # LC1324791 for a similar style replacement.
    view full answer...

  • Does the Andersen Ultimate Connection 5th Wheel Trailer Hitch Adapter Work wtih Lippert 1621 Pinbox
  • The Andersen Ultimate Connection, part # AM3200, works with any fixed fifth wheel pinbox. It doesn't work with rotating pin boxes. So as long as your Lippert 1621 is a fixed pin box, like parts # LC1191191, # LC1191151 and # LC1387882 it'll work just fine for you.
    view full answer...

  • Replacement Pin Box for Lippert 1621 to Use with B&W Companion
  • In order to use the B&W Companion Slider Gooseneck-to-5th-Wheel Trailer Hitch Adapter part # BWRVK3400 along with the B&W Turnoverball Underbed Gooseneck Trailer Hitch w/ Custom Installation Kit part # BWGNRK1117 on your 2017 Ford F-250 FX4 you will indeed need to swap out the pin box you have now with a welded on 5th wheel to goosenneck adapter. Since you have a Lippert 1621 box pattern you can use the Lippert 1621 5th Wheel Pin Box part # LC1191191 for 15K or part # LC1387883 for 21K....
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  • Will Trailair Rota-Flex Keep Fifth Wheel at Same Height When Replacing Lippert 1621 Pin Box
  • I reached out to the manufacturer and got the specs for both the Lippert 1621 5th Wheel Pin Box # LC1191191 and the Trailair Rota-Flex # LC328330 which it is designed to replace. These pin boxes have very similar dimensions, though the the Rota-Flex is about an inch lower overall. This small difference should allow you to keep your trailer level, though you may need to slightly adjust the height of your truck's fifth wheel hitch. The Trailair Rota-Flex # LC328330 will be an upgrade...
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  • Can 5th Wheel Trailer Pin Box Bolts be Installed from the Inside with the Nuts on the Outside
  • I suppose you could run the bolts from the inside out when installing a pin box such as # LC1191191. You will have some of the bolt sticking out further than if it were just the head of the bolt but other than that provided everything was properly tightened I don't see a problem with it.
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  • Replacement Air Ride or Sidewinder Pin Box for Lippert 1621
  • The # LC328492 Trail Air Flex Air Air Ride Pin Box you mentioned is not an extended pin box. When installed, the center king pin to first row of bolt holes in the turret would be right at 17-3/4 inches, as you can see in the provided diagram. I've also shown the bolt hole spacing so you can compare it to your existing pin box. If you're looking for some extension to provide additional distance between the front of the trailer loft and the rear of the truck cab, you'd want to use a Sidewinder...
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  • Replacement Pin Box that Offers More Clearance than a Lippert 1621 Pin Box
  • We have just want you need to get more clearance between the cab of your 2015 Ram 2500 and 2015 Cougar 5th wheel trailer. If your trailer and Lippert 1621 pin box are rated under 16,000 pounds gross trailer weight then you can use Sidewinder pin box # RP61420. If it is rated over 16K but less than 19K then you can use # RP61421. The Sidewinders do not allow the trailer to pivot at the hitch. Instead they lock out at the hitch and move the pivot point back 22 inches so the trailer rotates...
    view full answer...

  • What is the Difference Between the Standard and Air-Ride 5th Wheel King Pin
  • The stock Lippert 1621 pin box and air-ride pin boxes have some differences. For example, the Lippert 1621 5th wheel pin box # LC1191191 is a direct replacement for a worn out pin box. Whereas the Fifth Gear 5th wheel air ride coupler # 5AB-E1621-16K will have cushioned shocks with an adjustable air spring and shock absorber. Therefore, reducing longitudinal shock or chucking by nearly 60 percent and decreasing vertical shock by 44 percent. I included a video review about the Fifth...
    view full answer...

  • How Much Does a Lippert 1621 Pin Box Weigh
  • Lippert 1621 5th Wheel Pin Box - 15,500 lbs Item # LC1191191 weighs approximately 100 pounds including the wings the pin box bolts to. Lippert 1621 5th Wheel Pin Box - 21,000 lbs Item # LC1387882 weighs approximately 115 pounds including the wings the pin box bolts to. The 20K Reese Goose Box # RP94720 that fits in place of the Lippert 1621 pin box weighs 170 pounds and the 16K version # RP94716 is approximately 159 pounds. I have linked review videos of each of these Goose Box adapters...
    view full answer...

  • What Is Weight Difference Between Lippert 1621 Pin Box And Trailair Flex Air Pin Box
  • I called my contact at Lippert and asked about the weight of the Lippert 1621 pin box, part # LC1191191 versus the Flex Air 18,000 pin box, part # LC328492. The # LC1191191 weighs 98-lbs. The # LC328492 pin box weighs 232-lbs, so it weighs more than twice as much as the # LC1191191
    view full answer...

  • Convert-A-Ball Gooseneck Fifth Wheel Adapter Pin Box and Fifth Wheel Trailer Compatibility
  • The Convert-A-Ball 5th-Wheel-to-Gooseneck Adapter # CAB-C5G will work with your 2008 Gulfstream Canyon Trail and OEM 1621 pin box set up as long as you don't have the Elite Series or an OEM under bed gooseneck hitch in your tow vehicle. Make sure to back up your truck under the trailer and measure from the top of the ball in the truck bed to the base of the pin box on the trailer as well. If this measurement is between 12" - 16" then you're all set. The direct replacement for a worn out...
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  • Will Ultra-Fab 5th Wheel King Pin Shroud Fit Pin Box On 2012 Infinity 3750L Trailer
  • I was unable to find the model for the pin box you have on your trailer from the numbers you provided either. I have attached a drawing of the dimensions of a Lippert 1621 5th Wheel Pin Box, part # LC1191191 you can check out. If the dimensions of your pin box match those on the LC1191191 then the pin box cover # LC301458 should work great for you.
    view full answer...

  • How to Adjust the Height of a 5th Wheel Trailer Pin Box
  • When adjusting the height of a pin box such as # LC1191191 it is important to support the pin box when removing the bolts. I recommend 2 or 3 buddies to give you a hand and make sure no one is beneath the pin box while raising or lowering it. With the pin box supported unbolt it, raise or lower it as needed, and then put the bolts back in and tighten them down. According to Lippert use the following torque specs: Torque 1/2” bolts a minimum of 110 ft-lb. Torque 5/8” bolts a minimum...
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  • Replacement Pin Box Needed to Tow a 2018 Reflection 337RLS with a PullRite SuperLite
  • I spoke with someone over at PullRite who said that they have heard from customers that a standard pin box that doesn't have any cushion actually tows better with the PullRite SuperLite 4P 20,000lb hitch that you are using. Since the hitch comes with an adapter for the king pin all that we need to know is the model number of your current pin box. This can actually be found on the pin box itself. There should be a sticker that has a series of numbers on it. It should reflect one of the...
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  • Why is the Locking Plate # DM6025 Required for a MOR/ryde Pin Box When Using the Autoslide Hijacker
  • Most pin boxes, like the common Lippert 1621 # LC1191191, have a solid connection to the king pin and can be secured to the Demco Hijacker Autoslide # DM8550034 via the built-in brackets. Since the MOR/ryde pin boxes have a unique connection to the king pin the Locking Plate # DM6025 is needed so that the pin box can remain secure. This locking plate has a wedge on it so if you were to tow your trailer with a 5th wheel hitch that doesn't automatically slide (and has the same funnel size...
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  • Is Lippert 1621 Pin Box # LC1191191 Compatible with Pop Up RV5 King Pin Extension Adapter
  • I can see the appeal of the RV5 king pin extension and I have not heard of any issues with it fitting a Lippert 1621 pin box. But I can tell you that the use of an adapter will more than likely void the warranty on the trailer. Also, since the distance from where the trailer couples to the hitch back to where the pin box mounts to the trailer will increase using this adapter it will put significantly more stress on the trailer frame. A better option is a Sidewinder replacement pin box,...
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  • Installing Pull Rite Capture Plate on Lippert 1621 Pin Box or TrailAir Flex Air Pin Box
  • The Lippert 1621 pin box # LC1191191 is 12-3/4 inches wide and has a measurement of 3-3/8 inch from the leading edge of the pin box to the front of the king pin. From the leading edge to the back of the pin box the measurement is 8-7/8 inches. This will require the capture plate 3365 you referenced. The capture plate will have a raised edge that will fit the outside dimensions of your pin box. Then you will simply use Loctite # LT37420 to all 4 set screws on the side of the raised...
    view full answer...

Do you have a question about this Fifth Wheel King Pin?

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Info for this part was:

Edited by:
Lindsey S
Expert Research:
Michael H
Expert Research:
Jameson C
Expert Research:
Jeffrey L
Written by:
Chelsea B
Photos by:
Zach O

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