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  1. Trailer Hitch Ball
  2. B and W
  3. Gooseneck Hitch Ball
  4. 2-5/16 Inch Diameter Ball
  5. Offset Ball
  6. 20000 lbs GTW
4" Offset Ball for B&W Turnoverball Gooseneck Trailer Hitches
B and W

4" Offset Ball for B&W Turnoverball Gooseneck Trailer Hitches

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$165.09
Trailer Hitch Ball
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Designed for use with B&W's Turnoverball gooseneck hitch, this ball extender moves the pivot point of your trailer 4" rearward to provide additional cab clearance. Great Prices for the best trailer hitch ball from B and W. 4" Offset Ball for B&W Turnoverball Gooseneck Trailer Hitches part number BWGNXA4085 can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.
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  • Reviews (359)
  • Q & A (0)
  • Photos
  • Used (1)

B and W Trailer Hitch Ball

  • Gooseneck Hitch Ball
  • 2-5/16 Inch Diameter Ball
  • Offset Ball
  • 20000 lbs GTW
  • Powder-Coated Steel
  • B and W

Designed for use with B&W's Turnoverball gooseneck hitch, this ball extender moves the pivot point of your trailer 4" rearward to provide additional cab clearance.


Features:

  • Extension provides 4" of additional space between your truck's cab and your gooseneck trailer
  • Works with all B&W Turnoverball gooseneck trailer hitches except for the following:
    • For Toyota Tundra applications use BWGNXA4585
    • For Dodge Ram 1500 applications use BWGNXA4685
  • Square ball base prevents ball from turning in hitch during hookup
  • Powder coated steel resists corrosion
  • Made in the USA


Specs:

  • Ball size: 2-5/16"
  • Offset: 4"
  • Weight capacity: 20,000 lbs
  • Vertical load limit: 5,000 lbs
  • Distance from center of locking pin hole to bottom of square base: 2"


4


GNXA4085 B and W Turn Over Ball Gooseneck 4" Hitch Ball Extender

Item # BWGNXA4085




California residents: click here


Customer Satisfaction Score:

Ratings & Reviews

4.8

358 reviews
Designed for use with B&W's Turnoverball gooseneck hitch, this ball extender moves the pivot point of your trailer 4" rearward to provide additional cab clearance.

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See what our Experts say about this B and W Trailer Hitch Ball

  • What 5th Wheel to Gooseneck Adapter Hitch do I Need for My 2019 Ford F250 with Short Bed?
    Hello Shane, Great question, and I am going to need you pin box number to ensure we are getting you the right part number. If you are unsure of your pin box number, please feel free to send me the information off of the sticker on your current Pin Box so I can get it from Lippert. Since your 2019 F250 is a short bed you are definitely going to need an offset. The Shocker 5th Wheel to Gooseneck Pinbox for Lippert 1621/0719 and Rhino Box - 24K GTW - 6K TW # SHK23MR has a 3" offset. I attached...
    view full answer...
  • Comparing Reese Goose Box Pin Box to Andersen Ultimate for Ram 3500 Short Bed Turning Clearances
    The Reese Goose Box 5th-Wheel-to-Gooseneck Air Ride Coupler Adapter # RP94720 for Lippert 1621, 1621HD, and 0719 pin boxes will not increase your turning clearances by itself beyond the Andersen Ultimate hitch you have. The distance from the center of the hitch ball coupler to the center of the first row of bolt holes is 17-3/4 inches. The biggest benefit is the air ride suspension along with one less moving part. The only way to increase this is to use an offset hitch ball like the...
    view full answer...
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  • Compatibility of B&W Gooseneck Hitch and Offset Ball with Andersen Ultimate Hitch on 2018 F-150 5.5
    For your 2018 Ford F-150 with 5.5 foot bed, the B&W Turnoverball Underbed Gooseneck Trailer Hitch w/ Custom Installation Kit # BW77FR is the correct fit. You will want to use the 4 inch offset ball # BWGNXA4085 because the bed is shorter than 6 feet. This offset ball will work with the Andersen Ultimate Hitch but you will still need to be careful with turning clearances due to the short bed and Super Crew Cab. The Andersen hitch will require the shorter 3237 coupler tube in place of the...
    view full answer...
  • Can B&W Offset Gooseneck Hitch Ball Work with OEM Puck System on 2021 Ram 3500
    Hey Rudi, thanks for reaching out! I think what you're saying is you have the OEM puck system with the center gooseneck hole installed on your 2021 Ram 3500. If that's the case, then I recommend using the Gen-Y Hitch Gooseneck Trailer Hitch # GY83XR which comes with a 5" offset - the 4" Offset B&W Ball # BWGNXA4085 is designed to only work with the B&W gooseneck hitches like part # BWGNRK1320 that fits your truck. You can replace your OEM puck system with the B&W gooseneck, but I don't...
    view full answer...
  • Can Andersen Ultimate Be Used With Offset Gooseneck Ball?
    Hey Wade, thanks for getting in touch. The Andersen Ultimate Hitch can be used with an offset gooseneck ball. This has been confirmed with Andersen.
    view full answer...
  • Does Using an Offset Gooseneck Ball Change where the Pin Weight is Carried in the Truck Bed
    If you were to use the 4 inch offset ball # BWGNXA4085 the pin weight on the ball will not be changed. What will change is where the weight is carried on the truck. Using the offset ball will put more weight 4 inches back from the center of the gooseneck ball hole in the truck bed. This may or may not affect the truck. Some things that could happen include reduced steering and braking and headlights angled upward. If the weight is far enough behind the rear axle it can lift the front...
    view full answer...
  • Will 4" Offset Ball for B&W Turnoverball Gooseneck Trailer Hitches Fit 2022 Ram 2500
    Hey James! I'm not entirely sure what you're asking here. Do you want to know if you can use the # BWGNXA4085 with the additional height compared to your current ball? This ball is 5-3/4" tall from the base of the truck bed to the top of the ball. This will be approximately 1-3/4" taller than your current ball so the trailer nose will sit a little higher. Unless you're already nose high I don't see this being an issue.
    view full answer...
  • Offset Gooseneck Ball for 2021 Ram 3500 With OEM In Bed Prep
    The Curt Above-Bed Gooseneck Trailer Hitch for Fifth Wheel Rails # 16055 can be used with a set of in bed rails. This will give you a 3" offset. The other option would involve putting an offset adapter on to your gooseneck trailer. Something like the B&W Extend-A-Goose Gooseneck Coupler # BWTEXA4200. If you decide that this is the best option for you let me know what tube size you have on your gooseneck trailer and I will recommend a option for you.
    view full answer...
  • Correct 4" Offset Ball for a B&W Turnoverball Hitch on a 2013 Ford F-150
    No, you'll need a longer one since you have a Ford truck. The correct 4" Offset Ball for B&W Turnoverball on a 2013 Ford F-150 is item # BWGNXA4085. The 4" Offset Ball for B&W Turnoverball Gooseneck Trailer Hitch for Dodge Ram 1500 item # BWGNXA4685 has a significantly shorter tube so it won't reach the locking pin.
    view full answer...
  • Looking For Twist Lock Gooseneck Ball With 4" Offset
    Hey Rich, thanks for reaching out. We do have offset gooseneck balls, but nothing with a twist lock. For example, the B&W 4" offset ball # BWGNXA4085 is for the B&W Turnoverball gooseneck hitch. Or the Curt RockerBall Multi-Fit Ball Kit w/ 4" Offset # C78ZV with OEM gooseneck hitches. Both of these just drop into the gooseneck ball hole. Do you know what brand your gooseneck hitch is? Is it factory or aftermarket?
    view full answer...
  • Gooseneck Hitch Fit for 2019 Ram 1500 With 5-1/2 Foot Bed
    There is only one gooseneck hitch that is confirmed to fit your 2019 Ram 1500 with a 5-1/2 foot bed (as of July 2019), the B&W Turnoverball Underbed Gooseneck Trailer Hitch # BWGNRK1319. The cut out of the instructions show where the hitch ball will be when installing this. Since you have a 5-1/2 foot bed you will need the B&W Extend-A-Goose Gooseneck Coupler # BWTEXA4200 which has a 10" offset, in order to give you a way to make a turn with a gooseneck hitch installed. This coupler will...
    view full answer...
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  • Gen-Y 5th Wheel To Gooseneck Pin Box Compatibility With A Rhino Box Pin Box
    Hey John, The Gen-Y Hitch 5th Wheel to Gooseneck Pin Box # GY98GR has a matching bolt pattern to your Rhino Box pin box. You will want to check your 5th wheel's pin weight to ensure the 3.5K model is going to be the right capacity though. With a 6.5' bed you're not going to be able to make a 90 degree turn unless your trailer has a really tapered nose. You can, however, use an offset ball to help provide more turning clearance though. These all have specific fits to the gooseneck hitch...
    view full answer...
  • Underbed Gooseneck Hitch For 2020 Ford F-150 Short Bed
    Hi James; is the 36-gallon tank a factory part and not aftermarket? If so there is an option but for aftermarket tanks I wouldn't be able to verify if there would be interference or not. So as long as your tank is a standard tank on your 2020 Ford F-150, the underbed gooseneck hitch that fits your short bed truck is the following: - B&W Turnoverball Underbed Gooseneck Trailer Hitch # BW77FR I also wanted to mention that since you have a short bed, an offset ball is highly recommended...
    view full answer...
  • Can a B and W Extend a Goose Goosneck Coupler be Used with a 4 inch Offset Gooseneck Ball
    I spoke with my contact at B and W and was told that the Extend a Goose # BWTEXA4200 and the 4 inch offset ball # BWGNXA4085 can be used together. However, the pivot point of the trailer will still only be 4 inches back from its original position meaning that you will get 4 inches of true offset, not 14.
    view full answer...
  • What Gooseneck Pin Box do I Need for My 2025 Coachman Brookstone 374RK with 18" Clearance?
    Hello Keith, Wow, that is a really nice 5th wheel, congrats!! The Reese Goose Box # RP59KR is a great choice for replacing the factory Rhino-mount pin box on your 2025 Coachman Brookstone 374RK, particularly because of your need for a front bolt hole to center ball measurement between 16 and 18 inches. The Gen-Y gooseneck pin box designed for the Rhino mount, while heavy-duty, only offers about 14 inches from the front mounting hole to the center of the gooseneck ball. That falls short...
    view full answer...
  • Gooseneck Hitch for 2026 Ram 3500 Big Horn Short Bed
    Hey Rob! You can actually use either one, but my recommendation would be the Custom Underbed Installation Kit for B&W Companion 5th Wheel Trailer Hitches # BWGNRK1320-5W. B&W makes some of the best hitches available, and the Turnoverball is no exception. Assuming you're using the regular ball, it can be stored upside down in the hitch when not in use. It also allows you to use the Companion # BWRVK3400-5W if you want to use a regular 5th wheel hitch at some point in the future. Not something...
    view full answer...
  • What Is The Actual Weight Of The B&W Turnoverball Underbed Gooseneck Trailer Hitch BW77FR
    Hey Kevin, thanks for reaching out. The B&W Turnoverball Underbed Gooseneck Trailer Hitch # BW77FR weighs approximately 85 lbs altogether. The 4" offset ball part # BWGNXA4085 weighs 18 lbs. Honestly, I couldn't agree with you more that we should show the product weight on the page. We actually used to list the shipping weight for all our products, but the powers that be decided to do away with that for some reason. If you ever need to know the weight of something just let me know and...
    view full answer...
  • Will B&W Turnoverball Gooseneck Hitch Fit 2019 Ford F-250 With Factory Inner Plates Welded to Frame
    Excellent question and yes, even with the inner plates already welded to the frame of your 2019 Ford F-250 Super Duty, you can still use and install the B&W Turnoverball gooseneck on your truck; the correct fit for your '19 F-250 is the following: - B&W Turnoverball Underbed Gooseneck Trailer Hitch w/ Custom Installation Kit # BWGNRK1116 If you take a look at the cut out of the instructions I added, you can see that you will simply not use the inner side plates that come with the Turnoverball...
    view full answer...
    Image 1 for
  • Will Gen-Y Hitch Gooseneck Trailer Hitch Fit B&W Turnoverball
    Hi Brian; the Gen-Y Hitch Gooseneck Trailer Hitch # GY43XR is designed to fit the factory prep package on your 2020 Ford F-350. It is not compatible with your B&W Turnoverball Underbed Gooseneck Trailer Hitch # BWGNRK1116. For an offset ball you can use the 4" Offset Ball for B&W Turnoverball Gooseneck Trailer Hitches # BWGNXA4085. What kind of trailer are you towing?
    view full answer...
  • Will Reese Goose Box Have Short Bed Turning Clearance 2011 F-350
    Hey Richard, since the 2020 Wildcat 290 RL has a tapered nose you can use a Reese Goose Box like the part # RP85FR with a B and W Turnoverball hitch # BWGNRK1111 that fits your 2011 Ford F-250 with the offset ball part # BWGNXA4085 and you'd have really good turning clearance. It's hard to say exactly how sharp of a turn you'd be able to make but I would easily assume pretty close to the full 90. How often do you need to be able to get to 90 degrees?
    view full answer...
  • Will a Reese Goosebox Work w/ a Recessed Well on a CM Flatbed?
    Congrats on the new trailer! You'll be good! We've previously confirmed through Reese that the Reese Goose Box item # RP94716-61301 works great with the recessed gooseneck ball on a CM flatbed so long as you have a 14" x 15" recessed area. Which is what you have and some. An offset gooseneck hitch ball like item # BWGNXA4085 will be absolutely no help with clearance in a recessed well.
    view full answer...
  • What B&W Gooseneck Hitch do I Need for My 2015 Chevy Silverado 2500 with 6 3/4" Bed?
    Hello Stanley, Great question, and I understand your concern when it comes to clearance. Yes, you can install the B&W Turnoverball Underbed Gooseneck Trailer Hitch w/ Custom Installation Kit - 30,000 lbs # BWGNRK1012 in the bed of your 2015 Silverado 2500 6 3/4' bed. To get the extra clearance for your short bed you will also want to get the B&W Turnoverball Gooseneck Trailer Hitches # BWGNXA4085 which will give you a 4" offset resulting in the extra clearance needed for the standard bed....
    view full answer...
  • Can B&W Turnover Ball, Offset Gooseneck Ball & Andersen Ultimate 5th Wheel Connection work Together
    It is perfectly acceptable to use the B&W Turnover ball Gooseneck hitch # BW77FR, and the # BWGNXA4085 offset ball be used with an Andersen Ultimate 5th wheel Connection. The Andersen hitch adapter provides about 8 inches of offset, plus the 4 inches you'll get from the offset ball add up to the same 12 inch offset you'd get from most sliding fifth wheel hitches. I've also confirmed the compatibility with Andersen.
    view full answer...
  • Is there a Taller Gooseneck Ball for the B&W Turnover Ball Gooseneck Hitch?
    Hey Charlie, I have two options for you. One is a standard 2-5/16" gooseneck hitch ball that is 1" taller item # BWGNXA2050. It measures 4-1/16" tall from the bed of your truck. The other is an offset 2-5/16" gooseneck hitch ball item # BWGNXA4085 that measures 5-3/4" tall from the bed of your truck. This one however pushes the hitch ball back 4" towards your tailgate.
    view full answer...


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Condition: Surface Scratches

Notes: Item has cosmetic paint damage on the ball. Otherwise unused

$163.35
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