1. Fifth Wheel King Pin
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  11. 7019
5th Airborne Premium Fifth Wheel Air Ride Coupler - Standard 12-1/2" Wide Air Ride Pin Box

5th Airborne Premium Fifth Wheel Air Ride Coupler - Standard 12-1/2" Wide Air Ride Pin Box

Item # 5AB-S500-700
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Fifth Wheel King Pin
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Reese Fifth Wheel King Pin - 5AB-S500-700
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The 5th Airborne premium fifth wheel air-ride coupler acts as a buffer between the tow vehicle and the trailer, minimizing the abuse sustained from turbulence on the road and giving you the smoothest ride possible by reducing shock. Call 800-298-8924 to order Reese fifth wheel king pin part number 5AB-S500-700 or order online at etrailer.com. Free expert support on all Reese products. Guaranteed Lowest Price and Fastest Shipping for 5th Airborne Premium Fifth Wheel Air Ride Coupler - Standard 12-1/2" Wide Air Ride Pin Box. Fifth Wheel King Pin reviews from real customers.
  • All Info
  • Reviews (7)
  • Q & A (61)
  • Photos
  • Why etrailer?

Reese Fifth Wheel King Pin - 5AB-S500-700

  • Fabex
  • Lippert
  • RBW
  • 520
  • 530
  • 560
  • 1116
  • 0115
  • 7019
  • Reduces Bounce and Jarring
  • Reese
  • 21000 lbs GTW
  • Pin Box Upgrade
  • Cushioned
  • Fixed Turret

The 5th Airborne premium fifth wheel air-ride coupler acts as a buffer between the tow vehicle and the trailer, minimizing the abuse sustained from turbulence on the road and giving you the smoothest ride possible by reducing shock.


Features:

  • Pre-assembled for quick and easy installation
  • Bolts onto trailer using existing holes and hardware
  • Cushions shock with adjustable air spring and shock absorber
    • Reduces longitudinal shock (chucking) by nearly 60%
    • Decreases vertical shock by 44%
    • Relieves stress on coach frame
    • Reduces vibration inside coach and protects contents
    • Smoother ride means less fatigue for driver and passengers
  • Air spring is enclosed within the coupler for protection against the elements
  • Streamlined, aerodynamic design


Specs:

  • Capacity: 21,000 lbs
  • CSA approved
  • Designed for use with the following pin boxes
    • Fabex (520, 530, and 560)
    • Lippert (1116 and 0115)
    • RBW (7019)




5th Airborne Premium Fifth Wheel Air-Ride Coupler:

  • 1. Rear mounted, heavy-duty shock absorber
  • 2. Enclosed air spring also absorbs shock
  • 3. King pin - connects to the fifth wheel trailer hitch in the truck bed
  • 4. Pivot point - allows king pin to move up and down


5AB-S500-700 5th Airborne Premium Fifth Wheel Air Ride Coupler - Standard 12-1/2" Wide Air Ride Pin Box

Installation Details 5AB-S500-700 Installation instructions


California residents: click here



Customer Reviews

5th Airborne Premium Fifth Wheel Air Ride Coupler - Standard 12-1/2" Wide Air Ride Pin Box - 5AB-S500-700

Average Customer Rating:  4.7 out of 5 stars   (7 Customer Reviews)

The 5th Airborne premium fifth wheel air-ride coupler acts as a buffer between the tow vehicle and the trailer, minimizing the abuse sustained from turbulence on the road and giving you the smoothest ride possible by reducing shock.

- 5AB-S500-700
by:

Received my 5th Airborne pin box in 3 days. I didn’t have any help readily available and I couldn’t wait. It was a direct replacement of my old pin box. The guy I was emailing was very helpful and helped me correct my order as I ordered the wrong one and caught my mistake before it processed. He was great to work with as erailer always is. Highly recommend these guys for all your trailering needs. It was a little aggravating to install alone with some makeshift braces and 2 large screwdrivers to line up holes. Be sure to sand the inside of the frame if any rust or anomalies are present. Other than that, was a simple install and fit as it should. Thank You etrailer! 628951



- 5AB-S500-700
by:

So far everything is ok, I just received it 2 hrs ago and just unpacked it. At this time all I can say is you need to pack it better befor shipping because the Installation Instructions were in bad shape, all 3 sheets were ripped in 4 different places making them hard to read. Other than that it is in good shape and looks ok, will let you know how it works after it is installed on my 5th wheel. Thank You for the fast shipping. Thank You Bill Grogan 609497



- 5AB-S500-700
by:

Spoke to several people at etrailer all went beyond to help get the correct item ordered all gave great information regarding the 5th Airborne as the Trailaire would not get shipped to our time line. Received a week to the date when the order was changed now attached to our 5th wheel. Thank you you do go beyond your people are knowledgable about the products you and they arrive in time Thank you again 565294



- 5AB-S500-700
by:

My wife and I installed the new pin box ourselves. I put the pin box on a dolly and moved the dolly up an embankment. I then backed my truck to the dolly with the pin box and both the pin box and truck bed were both the same level. Two steel ramps were used to move the pin box onto the truck bed where I then inserted the pin box pin into the pin box receiver. The back of the pin box was held up by the dolly. The truck was backed up to the RV and after several attempts the new pin box slid into the pin box mount. Raising and lowering the 5th wheel matched the holes so I could insert the bolts. Not bad for 76 yrs of age. 548823



- 5AB-S500-700
by:

Unit was shipped in a timely manner although it could have used a little sturdier packaging. Self installed in 2-3 hours with removal of original. Fit was extremely tight and required slotting a couple of holes for good alignment. suggest paint removal where it fits into trailer. Trailer (35 ft Montana) pulls with less bounce on segmented roads. Did have issues with air valve on bladder but replaced valve stem. Overall pleased with unit 508416



- 5AB-S500-700
by:

Delivered as described. Fifth airborne king pin box was back ordered and we were kept up to date as to when the product would be available to ship. 320455



- 5AB-S500-700
by:

This item arrived quickly. There was some rust inside of the mounting cavity that had to be removed before installing the 5th Airborne. You may also experience some swelling from the manufacturer welding up the pin box cavity. Once this is cleaned up, installation is easy. 192406


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Ask the Experts about this Reese Fifth Wheel King Pin

  • What is the PSI Rating for 5th Airborne Premium Fifth Wheel Air Ride Coupler 21K
    On the 5th Airborne Air Ride coupler # 5AB-S500-700 a good initial setting is 80 to 100 psi. The instructions which I have linked for you state not to exceed 120 psi. Ultimately the psi rating will depend on the weight of the trailer at the king pin and you will add or remove air as needed. I have also included a link to the 5th Airborne FAQ article for you.
    view full answer...
  • Recommended Starting Air Pressure for 5th Airborne Cushioned 5th Wheel Pin Box
    For the rubber air spring in a cushioned 5th wheel pin box like the 5th Airborne Air Ride coupler # 5AB-S500-700 a good initial setting is 80- to 100-psi. From there you will adjust pressure up or down to achieve the best subjective ride quality. There is not absolute rule for correct pressure for any given trailer. You should never exceed 120-psi under any circumstances and deflate the air spring when the trailer will be idle for more than a week or so.
    view full answer...
  • What are the Dimensions of the 5th Airborne Premium Air Ride Coupler # 5AB-S500-700
    I have attached a diagram that gives all of the important measurements of the 5th Airborne Premium Air Ride Coupler, # 5AB-S500-700. The length of the pin box from the center of the king pin to the back of the pin box is 23-1/2 inches. The actual depth of the pin box where it attaches to the fifth wheel trailer will depend on the pin box you are replacing. This air ride pin box was designed to replace specific OEM pin boxes. It will replace the Fabex 520, 530 and 560 pin boxes, the...
    view full answer...
  • Recommended Air Ride Pin Box For 2007 Keystone Everest 330B
    You are correct that the Sidewinder and B&W Companion Hitch are not compatible. To give you the Air Ride Pin box of your 2007 Keystone Everest 330B, I recommend the 5th Airborne Premium Fifth Wheel Air Ride Coupler - Standard 12-1/2" Wide Air Ride Pin Box # 5AB-S500-700 or the 5th Airborne Premium Fifth Wheel Air Ride Coupler - Extended - 12-1/2" Wide Air Ride # 5AB-E510-710. The correct fit will depend on the pin box bolt hole measurements and I've attached an article to help you determine...
    view full answer...
  • Replacement Air Ride King Pin for Lippert 1116 Pin Box on Fuzion Trailer
    We have a nice selection of replacement pin boxes for the Lippert 1116 pin box on your Fuzion Trailer. The Reese 5th Airborne Premium Fifth Wheel Air Ride Coupler # 5AB-S500-700 is a very nice option that will reduce chucking, vertical shock and vibration inside the coach. The air spring is enclosed within the coupler so it is protected against the elements. This king pin has a weight capacity of 21,000 pounds. I have attached the installation details along with a link that will...
    view full answer...
  • What Sidewinder Can Replace RBW-7016 Pin Box on 1994 Avion 34ft Trailer Pulled With 2007 Dodge Ram
    I spoke with my technical contact who is an absolute guru when it comes to sidewinders and, unfortunately, there are no sidewinders that will fit your RBW-7016. The tube that the pin box wraps around does not allow the acceptance of a sidewinder. The 5th Airborne Coupler # 5AB-S500-700 that you referenced will make your ride more comfortable by reducing chucking and vibration but will not give you any additional clearance.
    view full answer...
  • Air Ride Coupler for Use with Demco Hijacker 5th Wheel Trailer Hitch
    Adding a capture plate would not allow you to use the Trailair pin box with your Demco Hijacker 5th wheel trailer hitch. If you have a Lippert 1116 pin box then you could use the 5th Airborne # 5AB-S500-700 which is also an air ride pin box with locking plate # DM6026.
    view full answer...
  • Is the 5th Airborne Premium # 5AB-S500-700 a Replacement for RBW7019 Pin Box
    The 5th Airborne Premium Fifth Wheel Air Ride Coupler # 5AB-S500-700 that you referenced is indeed a direct replacement for your RBW7019 pin box. If you have an adapter like the Ranch Hitch Universal 5th-Wheel-to-Gooseneck Coupler Adapter # AM3100 then it will be compatible with this pin bx.
    view full answer...
  • Installation Instructions and Air Pressure Recommendation for a 5th Airborne Coupler # 5AB-S500-700
    I attached a link to the installation instructions for the 5th Airborne Premium Fifth Wheel Air Ride Coupler # 5AB-S500-700. A good starting point for air pressure is 80-100 psi. Do not exceed 120 psi. If the ride is too soft, add more pressure. If the ride is harsh, remove pressure. You want the skid plate to be level when the trailer is connected to your tow vehicle. Check out the picture I attached.
    view full answer...
  • 5th Airborne Fifth Wheel Air Ride Coupler for a 2006 Keystone Cougar with a Lippert 1716 Pin Box
    The correct 5th Airborne Premium Fifth Wheel Air Ride Coupler for your 2006 Keystone Cougar with a Lippert 1716 pin box would be the part # 5AB-E510-710. The # 5AB-S500-700 that you referenced is not designed to fit your pin box so I would not recommend it for you.
    view full answer...
  • Which Fifth Airborne Cushioned King Pin is Need for a 2005 Keystone Raptor and Pull-Rite Super Glide
    You will need to find the manufacturer of the pin box on your trailer. It should be on a sticker or stamped into the pin box itself. Once you have found the make and model of pin box that is on your trailer you can select a Fifth Airborne to get your extension and a smoother ride. Use the link below and select the link that corresponds to your pin box.
    view full answer...
  • Measuring to Find the Correct 5th Airborne Pin Box for a Keystone Fusion 403
    I have seen these longer pin box numbers before and there is no information available for these pin boxes yet. If you cannot find a 4 digit pin box number on the trailer you will need to contact Lippert or Keystone to see which pin box you have. If it is not one of the numbers listed below then the only way to select the correct 5th Airborne Premium Fifth Wheel Air Ride Coupler is by measuring and using those dimensions to make a selection. I have sent a separate email on how to measure...
    view full answer...
  • 5th Airborne Pin Box 5AB-S500-700 Compatibility with Convert-A-Ball Adapter CAB-C5GX1216
    Yes, you can replace your 5th wheel's Fabex 560 pin box with the Reese 5th Airborne Air-Ride Coupler # 5AB-S500-700 and use it with your Convert-A-Ball 5th Wheel to Gooseneck Adapter # CAB-C5GX1216 which is shown in your photo. The adapter is compatible since the pin box is a fixed non-pivoting type.
    view full answer...
  • Is the 5th Airborne Pin Box # 5AB-S500-700 a Replacement for a LIPP1116 Pin Box
    The 5th Airborne Premium Fifth Wheel Air Ride Coupler # 5AB-S500-700 that you referenced is exactly what you need to replace and upgrade your Lippert 1116 pin box. This pin box reduces longitudinal shock (chucking) by nearly 60% and decreases vertical shock by 44% which will greatly increase your ride quality compared to a standard pin box. The 5th Airborne is really top of the line when it comes to pin boxes. If you hadn't mentioned this pin box specifically it is what I would have...
    view full answer...
  • Compatability of the 5th Airborne Air Ride Coupler with 35 Foot Hitchhiker Fifth Wheel Trailer
    To select the proper 5th Airborne Premium Fifth Wheel Air Ride Coupler, you will need to know the manufacturer and part number of the pin box on your 35 foot Nuwa Hitchhiker fifth-wheel trailer. Once you have this information you can select the proper air ride coupler by using the conversion table on our site (see link).
    view full answer...
  • Recommended Air Ride Pin Box to Replace a Lippert 0115 Pin Box
    For a replacement pin box for your Lippert 0115 currently installed on your 2001 Coachman trailer, I recommend the Reese Airborne Premium 5th Wheel Air Ride Coupler, # 5AB-S500-700. This Reese pin box uses a shock absorber and an adjustable air spring to help reduce 5th wheel chucking, relieve frame stress, and provide a smoother ride. The capacity of this Reese pin box is 21,000 lbs and is confirmed by the manufacturer to replace the Lippert 0115 box.
    view full answer...
  • Dimensions for Air Ride Replacement Options of Lippert 1116 Pin Box
    I was able to physically measure the 5th Airborne Premium Fifth Wheel Air Ride Coupler # 5AB-S500-700 for you and from the king pin center to the center of the airbag, the measurement is 6-1/2 inches. From the king pin center to the front pivot is 5.75 inches and to the rear where the shock attaches is 20-1/2 inches from the king pin center. I wasn't able to physically measure the Trailair Air Ride 5th Wheel Pin Box - Lippert 1116 - 21,000 lbs # LC155943 but did reach out to their...
    view full answer...
  • Cushioned Upgrade for Lippert 1116 Pin Box
    The correct 5th Airborne Premium Fifth Wheel Air Ride Coupler to replace a Lippert 1116 Pin Box is part # 5AB-S500-700 which is a direct bolt-on fit. The Lippert 1116 is 12-1/2" wide and the Lippert 1621 is only 12" wide. The 5th Airborne Premium Fifth Wheel Air Ride Coupler will not void the frame warranty. I spoke with Reese about using the Andersen Ultimate and they said there would not be an issue.
    view full answer...
  • Which 5th Airborne Cushioned Pin Box Fits Keystone Montana 5th Wheel
    The Keystone Montana trailers like the 2015 model you have uses a Lippert 1116 pin box so the correct 5th Airborne is the part # 5AB-S500-700.
    view full answer...
  • Which 5th Airborne 5th Wheel Trailer Coupler and Sidewinders Fit a Fabex 560 Pin Box
    If you just want a 5th Airborne Premium Fifth Wheel Air Ride Coupler and not a model with a Sidewinder attached for short bed trucks, then you can use # 5AB-S500-700, that you have referenced. I have included a link to the installation details for you. If you are looking for a model with a Sidewinder attached, you would need # RP61412. I have included a link to the installation details for this part as well. I have included links to FAQ articles on Air Ride couplers and Sidewinders for you.
    view full answer...
  • What Pin Box Fits Cameo 5th Wheel Trailer Model F37KS3
    Thank you for providing the model number of your Cameo 5th wheel trailer (F37KS3). Replacement pin boxes are determined based on the pin box model number of the original. Since Mor-Ryde makes both rigid and rubberized pin boxes, the model number is the best way to identify a correct replacement. If you replaced the OEM pin box with the Mor-Ryde and you still have the original pin box, please locate the pin box model number from the original part. With that you can use the chart shown...
    view full answer...
  • Lippert 0115 Pin Box Replacement
    The 5th Airborne Premium Fifth Wheel Air Ride Coupler - Standard 12-1/2" Wide Air Ride Pin Box # 5AB-S500-700 is a great replacement option for your Lippert 0115 pin box. This also provides air suspension for a smoother ride. The other option we have is the 5th Airborne Premium 5th Wheel Air Ride King Pin w/ Sidewinder and Turret - 16,000 lbs # RP61412 which gives you the air ride as well as the 22 inches of offset to where your trailer pivots for increased turning clearances. Either...
    view full answer...
  • How to Determine Correct 5th Airborne Premium Fifth Wheel Air Ride Pin Box for Fifth Wheel Trailer
    I'm happy to help you figure out how to determine which 5th Airborne Premium Fifth Wheel Air Ride Pin Box will work on your 2017 Grand Design, though there is not a database of trailers with part numbers we have access to, unfortunately. Instead, the best way to do this is take a look at your pin box for a stamp or a sticker that will have the pin box manufacturer and model number directly on it. Since yours is a 2017 you should not have any issue reading it (unlike some older models...
    view full answer...
  • If 80-100 Psi Does Not Align the Fill Line On the 5th Airborne Do I Need To Move the Airbag
    Correct, in regards to the 5th Airborne Premium Fifth Wheel Air Ride Couplers like part # 5AB-S500-700 if the recommend 80-100 psi does not level you up with the fill line then you would indeed want to move the air bag either forward or backward as that would then help level the fill line. I have attached a photo for you that explain this as well as shows which way to move the airbag.
    view full answer...
  • Replacement Sidewinder Pin Box for Fabex 520 on a 1999 Wilderness Bunkhouse
    Yes, we do have a couple of different Sidewinder options that will directly replace the Fabex 520 pin box on your Bunkhouse RV. We have the Sidewinder part # RP61412 which is rated for 16K, and then for the upgraded non-rotating version which incorporates an Air Spring and shock absorber for a smooth ride, we have the 5th Airborne Premium Fifth Wheel Air Ride Coupler # 5AB-S500-700 which is rated for 21K. All of these are a confirmed fit as a replacement for your Fabex 520.
    view full answer...
  • Cushioned Replacement Pin Box for Fabex 520
    We have a cushioned pin box replacement for a Fabex 520 with the 5th Airborne part # 5AB-S500-700 but we don't have any standard pin boxes that fit as a replacement.
    view full answer...
  • Can Demco Hijacker Autoslide Fifth Wheel Hitch be Used with 5th Airborne Cushioned Pin Box
    You will need locking plates for your 5th Airborne to be able to use it with a Demco Autoslide like part # DM8550022 . If you have a standard-length 5th Airborne kingpin you will need part # DM6026, and if you have an extended-length 5th Airborne kingpin you will need part # DM6062. The part # 5AB-S500-700 is an extended pin box so you'd need the part # DM6062.
    view full answer...
  • Towing a 5th Wheel Trailer with Fabex 500 Pin Box with a Gooseneck Trailer Hitch
    Since the Convert-A-Ball adapter did not work there is another option that could and you would not have to modify the trailer at all. You could potentially use the Andersen Ranch Hitch # AM3100. The adapter is height adjustable from 11-3/4 inches to 14-3/4 inches. You may also be able to move the pin box itself up higher on the trailer (if there are available holes in the wings where it is bolted on) if the height adjustment on the adapter is not enough.
    view full answer...
  • Need Extension Air Hose for 5th Airborne Premium Fifth Wheel Air Ride Coupler # 5AB-S500-700
    When it comes to an extension air hose that will screw onto the fill valve, take a look at our Easy Fill Retro Fit Kit for 5th Airborne, # 58382. This kit fits the 5AB-S and 5AB-E pin boxes, measures 14 inches long, and provides easier access to the inflation valve.
    view full answer...
  • Can Fifth Airborne Cushioned Pin Box be Used with Gooseneck Hitch Adapter
    As long as the 5th Airborne does not have a Sidewinder built into it and it is basically just a cushioned pin box you can use it with offset adapters like the Andersen Ultimate # AM3200.
    view full answer...

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