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  1. 5th Wheel Gooseneck Adapter
  2. Andersen
  3. Fifth Wheel Trailer to Gooseneck Hitch
  4. Bolts Over King Pin
  5. King Pin Adapters
  6. 24000 lbs GTW
Ranch Hitch Universal 5th-Wheel-to-Gooseneck Coupler Adapter w/8" Offset for Short-Bed Trucks
Andersen

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

Part Number: AM3139
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$599.98
Retail:$634.99
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5th Wheel Gooseneck Adapter
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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. 1-800-940-8924 to order Andersen 5th wheel gooseneck adapter part number AM3139 or order online at etrailer.com. Free expert support on all Andersen products. Great prices and Fastest Shipping for Ranch Hitch Universal 5th-Wheel-to-Gooseneck Coupler Adapter w/8" Offset for Short-Bed Trucks. 5th Wheel Gooseneck Adapter reviews from real customers.
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Andersen 5th Wheel Gooseneck Adapter - AM3139

  • Fifth Wheel Trailer to Gooseneck Hitch
  • Bolts Over King Pin
  • King Pin Adapters
  • Andersen
  • 24000 lbs GTW
  • Adapts Trailer
  • Offset
  • Adjustable Height

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.


Features:

  • Heavy-duty adapter converts 5th-wheel trailer king pin to gooseneck coupler
    • Conveniently allows 5th-wheel camping trailer to be towed with a gooseneck hitch
  • 8" Offset designed for short-bed trucks
    • Provides extra clearance between the overhang of your trailer and the cab of your truck for easier turning
  • Remote coupler release lets you engage and release coupler while standing alongside your truck
    • Eliminates climbing in and out of truck bed
  • 3" Vertical adjustment allows towing with multiple vehicles
  • Do-it-yourself installation in less than 1 hour
    • Some welding may be required if chucking occurs after installation
  • Works with standard 2-5/16" diameter gooseneck hitch balls
  • V-19 Certification
  • Slide hammer or gear puller (AM3103 - sold separately) is required for installation
  • Made in the USA


Specs:

  • Application:
    • Standard 2-5/16" gooseneck hitch balls
    • Short-bed trucks that need more clearance between truck and trailer when towing
    • Measurement from bottom of the king-pin plate to top of the hitch ball when trailer and truck are level: 11-3/4" (when adapter is collapsed) to 14-3/4" (when adapter is extended)
    • Required clearance between the overhang of the trailer and the top of the side rails of your truck for safe operation: 5" or 6"
    • Trailers with standard or extended pin box
      • Extended pin boxes longer than 30" measured diagonally may need additional reinforcing gussets welded to the pin box
  • Capacity: 24,000 lbs GTW, 6,000 lbs TW
  • Vertical adjustment: 3"
  • Hardware included; optional slide hammer to ease installation sold separately
  • Safety chains sold 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 that attaches in this way may void your trailer's warranty.
  • A pin box adapter (MR37ZR) is required if installing on a MORryde pin box.

V-19 Certified for safety and featuring exceptional strength and versatility, this universal adapter converts a fifth-wheel king pin to a gooseneck coupler. This allows you to tow your fifth-wheel trailer without a bulky fifth-wheel hitch. The Ranch Hitch from Andersen Manufacturing is easy to install, even for the inexperienced do-it-yourselfer.


Measuring Your Truck and Trailer for the Ranch Hitch Coupler Adapter

You can perform these steps to determine if the adapter will work for your fifth-wheel trailer.

  1. Back your truck into position as if you were hooking up your fifth-wheel trailer, making sure that the truck and trailer are level.
  2. Measure from the pin plate (the bottom of the pin box) down to the top of the ball in the bed of your truck.
  3. The measurement should fall between 11-3/4" and 14-3/4". (The adapter is 11-3/4" tall when fully compressed and 14-3/4" tall when fully extended.)

Additional Measurements

Five or six inches of clearance between the overhang of the trailer and siderails of your truck is necessary for safe operation.



Diagram of pin box showing where to measure length


Measuring for Pin Box Length

The Ranch Hitch adapter is designed for trailers with a standard or extended pin box up to 24" long (measured diagonally). To find this dimension, you should measure from the centerline of the bottom of the king pin into the back of the pin box as far as you can reach. You may not be able to reach the very back of the pin box itself because the top of it may extend into the trailer. In this case measure to where the pin box disappears into the trailer.




3139 Andersen Manufacturing Ranch Hitch Fifth-Wheel-to-Gooseneck Adapter (8-Inch Offset)

Installation Details AM3139 Installation instructions



Customer Satisfaction Score:


Customer Reviews

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

Average Customer Rating:  4.6 out of 5 stars   (195 Customer Reviews)

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.

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See what our Experts say about this Andersen 5th Wheel Gooseneck Adapter

  • Why Couldnt Convert-A-Ball Fifth Wheel/Gooseneck Adapter Be Used with 2019 Ford F250 Super Duty
    The Convert-a-Ball Adapter # CAB-C5GX1216 that you referenced can't be used with gooseneck balls that have the plastic latch mechanisms on the top of the balls like what you most likely have. These are known as "pop-in" balls. The issue is that the Convert a Ball ends up damaging the release mechanism. [Edit: if the latch is metal it won't be an issue] We do have the very similar Ranch Hitch Adapter part # AM3139 which you could use as it does not have this fit exclusion. It's the same...
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  • Can a Sidewinder be Used with a Gooseneck Coupler Adapter
    No, Reese does not recommend the use of any kind of adapter with the Sidewinder Fifth Wheel King Pins or the Fifth Airborne Sidewinder products. If you would like to send me some information about your vehicle and the trailer you will be towing, I will be glad to try to make a recommendation for you that includes a gooseneck adapter. The length of your truck bed, the distance from the gooseneck ball to the back of the cab, the width of the trailer and the amount of any pin box extension...
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  • Should Adapter with Offset be Used to Tow 5th Wheel with a 2007 Chevy Silverado Short Bed Gooseneck
    Since you have a short bed I highly recommend using the Convert-A-Ball Cushioned 5th-Wheel-to-Gooseneck Adapter # CAB-C5GX1216. This will allow you to still utilize your gooseneck hitch and provides you with 7-1/2" of offset that should make it so that you have cab clearance while turning. To make sure that the 7-1/2" of extra room will give you adequate clearance you can use the clearance formula which is: (A + B) - C = Clearance A = Distance from center of fifth wheel hitch jaw (or...
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  • Fifth Wheel to Gooseneck Hitch Adapter for Trailer with Leland 7921 Pin Box
    For a Leland pin box the best fifth wheel to gooseneck adapter is going to be the Convert a Ball part # CAB-C5G that you referenced. Only issue is that since you have a short bed truck you aren't going to have great turning clearance. Ideally you'd have a hitch that a rail adapter could fit like the X5 part # 16310 for B and W hitches or the # C16210 for Curt double lock hitches so that you could use a slider hitch like the Curt A20 Slider part # C16541.
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  • Recommended 5th Wheel Towing Options for Flatdeck Ford F-350 with Fold Down Ball Gooseneck Hitch
    For your Ford F-350 with flatdeck with fold down ball gooseneck, I recommend the Demco Recon Gooseneck-to-5th Wheel Trailer Hitch Adapter # DM8550045. This will give you a 5th wheel hitch that will fit your Seitz pin box. I've attached a video to assist. There are other adapters available like the Convert-A-Ball Cushioned 5th-Wheel-to-Gooseneck Adapter # CAB-C5G if you prefer to add a gooseneck style adapter to your pin box. Many manufacturers will not warranty the pin box when you...
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  • Solution for Towing a 5th Wheel Trailer with Curt Double-Lock Hitch on 2017 Chevy Silverado 2500
    While we do have other options for you, the only way to use the B&W Companion # BWRVK3500 or # BWRVK3400 is by having the entire B&W Gooseneck Hitch # BWGNRK1016 installed on your 2017 Chevy Silverado 2500 as there isn't a way to safely fit different parts of gooseneck hitches together. With that being said, I'm a little curious about the gooseneck hitch you currently have installed. Reason being that the Chevy factory gooseneck hitch would have needed all of the pucks installed as well...
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  • Is Offset Ranch Hitch 5th-Wheel-to-Gooseneck Coupler Adapter Needed For Short Bed Truck
    The offset Ranch Hitch adapter is needed for trucks with a bed that is less than 8 feet long. You will need as much clearance as possible with a short bed truck, and without the 8" offset you'll be very limited in how much you can turn. So a short bed will need the offset adapter, which is the following part number: - Ranch Hitch Universal 5th-Wheel-to-Gooseneck Coupler Adapter w/ 8" Offset # AM3139 In order to make the installation of the # AM3139 much easier, it is recommended to use...
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  • Is There A Reese Goose Box for a Lippert 1116 Pin Box
    I spoke to my contact at Lippert and gave them the serial number on your trailer frame. With this information they were able to inform me that your trailer has a Lippert 1116 wing set. Unfortunately, they do not make a Reese Goose Box compatible with this wing set. However, if you prefer to have a gooseneck hitch ball as your connection point then you can use the Convert-A-Ball Cushioned 5th-Wheel-to-Gooseneck Adapter part # CAB-C5G or part # CAB-C5GX1216. There is also a non-cushioned...
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  • Do 5th Wheel to Gooseneck Adapters Place Additional Stress on Trailer Frame
    Yes, it is true that most types of 5th wheel to gooseneck adapters will cause stresses on the trailer's frame and in some instances may actually void the warranty on the trailer frame. However, there is one type of 5th wheel to gooseneck adapter that does NOT place any extra stress on the coach's frame and that will NOT void your frame warranty. That type of adapter is called a Goosebox, made by Reese. A Goosebox such as # RP85FR is a replacement pin box that bolts on in place of your...
    view full answer...
  • Thread Count of the Replacement Collar System for Ranch Hitch Coupler Adapter # AM3110
    I went out to the warehouse and measured a thread count of 7 per inch for the Replacement Collar System for Ranch Hitch Coupler Adapter # AM3110. Please keep in mind that if you do not have a Ranch Hitch 5th-wheel-to-gooseneck coupler adapter, like part # AM3100 or part # AM3139, there is a good chance that this will not fit.
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  • Are there Sliding 5th Wheel Hitches that Attach to Gooseneck Balls?
    Hey David! Sorry to say but unless your flatbed truck has the B&W item # BWGNRK1500 and it's not in a recessed well, the only options I have for a gooseneck connected 5th wheel hitch are the Demco Recon item # DM8550045 or item # DM93YV. They just do not make sliding 5th wheel hitches that attach to gooseneck balls. The square receiver on the B&W item # BWGNRK1500 would allow you to attach the B&W Companion Slider item # BWRVK3400 if it was installed flush to your flatbed. It won't work...
    view full answer...
  • Solution For Offset Gooseneck Ball Needed for Use with Ford OEM Gooseneck Hitch
    I may have a solution for you to use your factory gooseneck setup, but there is not an offset gooseneck ball like the Curt 4" Offset Ball for Double-Lock Gooseneck Hitch # C602 designed to fit on the factory Ford prep package. With that said, you can eliminate the Andersen Ultimate # AM3200 and use the Ranch Hitch Universal 5th-Wheel-to-Gooseneck Coupler Adapter w / 8" Offset for Short-Bed Trucks # AM3139; this adapter connects directly to your 5th wheel kingpin and allows you to couple...
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  • Will the Ranch Hitch Fifth Wheel Adapter Work with a Lifted Truck
    If your trailer sits up high enough to allow your trailer to be towed level by your truck with a 6-1/2 inch lift and still have 6 inches of clearance between the bedrails and the overhang then the Ranch Hitch part # AM3139 would work just fine. However, most likely your truck will sit too tall for a fifth wheel trailer to be towed level behind it since you have such a large lift kit. Typically if you want to do any towing you will need a stock height truck.
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  • What is Height Adjustment Range for Andersen Ultimate Connection Adapter part # AM3139
    The Andersen Ultimate Connection Adapter part # AM3139 that you referenced is height adjustable from 13-1/2 inches to 16 inches. I attached a picture that shows more info on this adapters dimensions as well as shows where the maximum height adjustment line is. The height is set using the two set screws that thread through the outer tube of the adapter and then squeeze the inner tube.
    view full answer...
    Image 1 for
  • Can a Sidewinder Pin Box Be Used w/ a B&W Companion Flat Bed Hitch
    No, with your set-up you can not use a rotating pin box (Sidewinder). The Replacement Base for B&W Companion Flatbed 5th Wheel Trailer Hitch # BWRVB3055 you have still uses the turnover ball for its connection point. The reason you can not use a rotating pin box with the turn over Companion is that the way it attaches using the turnover ball can not handle the torque that is placed on the hitch by using a rotating pin box. You would not be able to use a rotating pin box with any hitch that...
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    Image 1 for
  • Convert-A-Ball 5th Wheel Adapter Compatibility with 2015 Ram Short Bed with Factory Gooseneck
    The Convert-A-Ball Cushioned 5th-Wheel-to-Gooseneck Adapter w/ Offset - 12" to 16" Tall # CAB-C5GX1216 is not recommended for use with factory-installed towing prep packages from Ford, GM, Dodge (Ram), or Nissan. There are a few reasons but none of them impact the actual function of the adapter. The first is ball wear. The factory systems use a lever on the top of the hitch ball that wears over time and can leave you unable to remove the ball. I've attached a photo from the manufacturer...
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    Image 1 for Image 2 for
  • Can a Reese Sidewinder with Rotating Coupler be Used with a 5th Wheel to Gooseneck Adapter
    If you need some extra clearance, we do carry several 5th wheel to gooseneck trailer hitch adapters. I recommend the Ranch Hitch Universal 5th-Wheel-to-Gooseneck Coupler Adapter with 8 Inch Offset, # AM3139. This adapter will give you 8 inches more clearance than a standard straight 5th wheel to gooseneck adapter. This unit is also height adjustable from 11-3/4 inches to 14-3/4 inches, and it has a gross trailer weight capacity of 24,000 pounds and vertical pin weight capacity of 6,00 pounds....
    view full answer...
  • How To Use a Ranch 5th Wheel to Gooseneck Hitch Adapter With a MORryde Cushioned Pin Box
    The 5th-Wheel-to-Gooseneck Coupler Adapter Mounting Plate # MR37ZR will fit all the MORryde pin boxes and allow for you to use the Fixed Ranch Hitch # AM3100 or Offset Ranch Hitch # AM3139. You will be able to bolt or weld on the adapter plate as it comes unfinished to make welding easier. The nice thing is that you can unbolt the plate and reinstall your original plate if someone else will need to haul your 5th wheel or you trade it in for another later down the road. If you plan to...
    view full answer...
  • Recommended Offset 5th Wheel To Gooseneck Adapter For Additional Turning Clearance In 2020 Ram 1500
    I may have an option for you, but the Ranch Hitch Universal 5th-Wheel-to-Gooseneck Coupler Adapter w/8" Offset for Short-Bed Trucks # AM3139 you were looking at will only give you a total of 8" offset. Combined with your orginal 27" of clearance this will only bring you to 35" which is a bit short of the 40" of clearance you were looking for. Besides using your Reese Revolution as designed with a 5th wheel hitch, this will be your best option. If you choose to go this route I recommend...
    view full answer...
    Image 1 for
  • Using Ranch Hitch Gooseneck Adapter # AM3139 to Tow 5th Wheel with 1999 F250 Short Bed
    Although having the 5th wheel perfectly level when hitched up on flat ground would be the ideal scenario, using the Ranch Hitch you mentioned, part # AM3139 would only raise the front of your 5th wheel up 1-1/4 inches above level, which is certainly close enough and would not cause any problems. To determine if the adapter will allow you to make 90 degree turns without the trailer corner hitting the rear of your truck cab, you can use the formula shown in the provided diagram. I have...
    view full answer...
    Image 1 for
  • Using an Adapter to Tow Fifth Wheel Trailer with 1999 Ram Pick Up Equipped with a Gooseneck Hitch
    I am not aware of any instances where a king pin has actually broken off, but I can confirm that using an adapter can be rough on the fifth wheel frame. In fact, Lippert, who manufactures the fifth wheel frames for many different fifth wheel trailer manufacturers actually specifically mentions that using an adapter to tow their fifth wheel frames with a gooseneck hitch will void the frame warranty. The ideal option is to tow a fifth wheel trailer with a fifth wheel hitch. The next best...
    view full answer...
  • Can the Ranch Hitch Gooseneck Adapter be Used With Short Bed Ford F-250?
    The Ranch Hitch Universal 5th-Wheel-to-Gooseneck Coupler Adapter # AM3139 has an 8" offset and is designed for use with short bed trucks like your 2014 Ford F-250 but there are a couple of other facets you need to be aware of as well. This adapter requires at least 5" between the overhang of your trailer and the top of your F-250's side rails and must be used with standard pin boxes only, as opposed to a cushioned or air ride pin box. You are going to need to back your truck into position...
    view full answer...
    Image 1 for
  • Comparing the Ranch Hitch Gooseneck Adapter and the Draw Tite Hi-Rise Adapter
    The Ranch Hitch part # AM3139 is a great solution for towing a fifth wheel trailer with a truck that has a gooseneck hitch. The advantage to this over the Hi Rise part # 9480 is that the gooseneck hitch in the truck does not matter. As long as there is a 2-5/16 inch ball in the bed of the truck this adapter will fit it. The Hi Rise has a more specific fit. It can only fit B&W Turnover Ball, Hide-A-Goose by Draw Tite or Reese, or Under-Bed by Bulldog. If you had one of these hitches this...
    view full answer...
  • Fifth Wheel Trailer Adapter to Tow the Trailer with a Gooseneck Hitch in a 2014 Ram Short Bed
    We don't carry a Reese adapter in that style but I do have a solution for you. Since your 2014 Ram is a short bed I suggest the Andersen # AM3139 adapter because it has an offset. The offset will help with clearance when executing sharp turns. If you also need the safety chains to work with the adapter use # AM3109.
    view full answer...


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

Condition: Installed

Notes: Item has been test fitted and and has minor cosmetic signs of install including scratches.

$432.88
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Used Picture for Ranch Hitch Universal 5th-Wheel-to-Gooseneck Coupler Adapter w/8" Offset for Short-Bed Trucks
Used Picture for Ranch Hitch Universal 5th-Wheel-to-Gooseneck Coupler Adapter w/8" Offset for Short-Bed Trucks
Used Picture for Ranch Hitch Universal 5th-Wheel-to-Gooseneck Coupler Adapter w/8" Offset for Short-Bed Trucks
Used Picture for Ranch Hitch Universal 5th-Wheel-to-Gooseneck Coupler Adapter w/8" Offset for Short-Bed Trucks

Condition: Surface Scratches

Notes: scratches to the item and the backet is bent. bracket can be bent out.

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

Condition: Surface Scratches

Notes: Item has minor cosmetic scratches/dings.

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

Condition: Surface Scratches

Notes: Item has minor cosmetic scratches and the handle bracket is slightly bent. Otherwise in good condition for its application.

$481.69
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