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

4" Offset Ball for B&W Turnoverball Gooseneck Trailer Hitch for Toyota Tundra

$167.23
Trailer Hitch Ball
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Designed for use with B&W's Turnoverball gooseneck hitch (BWGNRK1257) for your Toyota Tundra, ball extender moves the pivot point of your trailer 4" rearward to provide additional cab clearance. For 2022 and newer, use the BWGNXA4085. Great Prices for the best trailer hitch ball from B and W. 4" Offset Ball for B&W Turnoverball Gooseneck Trailer Hitch for Toyota Tundra part number BWGNXA4585 can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.
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  • Reviews (306)
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B and W Trailer Hitch Ball

Highlights

  • 4" Rearward Extension: Provides essential cab clearance for safe towing.
  • High Load Capacity: Supports up to 20,000 lbs GTW and 5,000 lbs vertical load.
  • Sturdy Construction: Made from powder-coated steel for long-lasting durability.
  • Perfect for Short Beds: Ideal for Tundra CrewMax to avoid cab-trailer contact.
  • Secure Fit: Square ball base prevents unwanted movement during towing.
  • Specific Compatibility: Best suited for 2022+ Toyota Tundra's B&W Turnoverball hitch.

Features to know about

Extra Clearance for Short Beds: 4-Inch Offset Ball

Tight turns with your gooseneck trailer can feel nerve-wracking, especially with a short-bed Toyota Tundra. The 4-inch offset ball is designed to solve this problem by moving the pivot point of your trailer rearward, providing the extra clearance needed between your truck's cab and trailer. This improves maneuverability and makes towing safer and easier, especially in tight corners.

Durability You Can Count On: Sturdy Powder-Coated Steel

When it comes to towing, strength and reliability are crucial. This offset ball is made from powder-coated steel, ensuring it can withstand the elements and resist corrosion for long-lasting use. With a weight capacity of 20,000 lbs and a vertical load limit of 5,000 lbs, it’s ideal for handling hefty loads with confidence, whether you're hauling a camper or a horse trailer.

Peace of Mind During Hookups: Square Ball Base

Hookups shouldn’t be a hassle or a worry. The square ball base of this product prevents unwanted turning of the ball in the hitch during the hookup process. This design provides a stable and secure connection every time, ensuring a stress-free experience when attaching your trailer.

Perfectly Designed for the Toyota Tundra: Tailored Fit

Specifically designed for use with B&W’s Turnoverball gooseneck hitch for Toyota Tundra, the BWGNXA4585 fits seamlessly with your setup. It's engineered for 2022 and newer models with the proper fitment, making it the go-to option for Tundra owners seeking optimal towing performance without guesswork.

Effortless Performance in Tight Spots: Reliable for Short Bed Trucks

Whether you’re towing with a Toyota Tundra or another short bed truck, the 4-inch offset gives you those precious extra inches needed for smoother turns and better clearance. Users have praised how effectively it allows for tight maneuvers, ensuring that backing into camping spots or making sharp turns on the road is done without worry.

Specs

Specifications

  • Ball size: 2-5/16"
  • Offset: 4"
  • Distance from center of locking pin hole to bottom of square base: 1-1/6"
  • Weight capacity: 20,000 lbs
  • Vertical load limit: 5,000 lbs

Note

For 2022 and newer Tundra's the BWGNXA4085 is the correct offset ball.

GNXA4585 B and W Turn Over Ball Gooseneck 4" Hitch Ball Extender for GNRK1257 for Toyota Tundras

Item # BWGNXA4585




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Customer Satisfaction Score:

Ratings & Reviews

4.8

305 reviews
Designed for use with B&W's Turnoverball gooseneck hitch (BWGNRK1257) for your Toyota Tundra, ball extender moves the pivot point of your trailer 4" rearward to provide additional cab clearance. For 2022 and newer, use the BWGNXA4085.

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Show More Reviews

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

  • Determining What Is Needed For Gooseneck Trailer Turning Clearance On 5-1/2' Bed 2019 Toyota Tundra
    Thank you for the images Barb, but you are going to have to take a couple measurements to verify what is going to work best for your exact situation. It looks like you have a 2019 Toyota Tundra with the B&W Turnoverball Underbed Gooseneck Trailer Hitch # BWGNRK1257 for the 5-1/2' bed. I do see according to the image provided your trailer is 80" wide so to make a full jack knife turn you would need more than 40" from the center of the hitch ball in the bed to the cab. This is not likely...
    view full answer...
  • Correct 4" Offset Gooseneck Hitch Ball for 2022 Toyota Tundra with B&W Turnoverball
    I spoke to B&W and they recommended using the 4" Offset Ball for B&W Turnoverball Gooseneck Trailer Hitches part # BWGNXA4085 with the B&W Turnoverball Underbed Gooseneck Trailer Hitch part # BW96FR on a 2022 Toyota Tundra. The 4" Offset Ball for B&W Turnoverball Gooseneck Trailer Hitch for Toyota Tundra part # BWGNXA4585 was for the previous generation Toyota Tundra which has a shallow hitch pin hole, it's not advised for the new generation.
    view full answer...
  • Suspension Enhancement That Works With Gooseneck Hitch on 2022 Toyota Tundra
    While there is a suspension enhancement option that will work with a gooseneck hitch on your 2022 Toyota Tundra, the air bags you asked about will not because they mount in the same location as the hitch brackets. So instead, what you will need to use are Timbrens, with the correct part number for your '22 Tundra being the following: - Timbren Suspension Enhancement System # T45MR I verified that the # T45MR uses a different style and positioning of brackets than air bags, which is why...
    view full answer...
  • Recommended Offset Ball for B&W Gooseneck Trailer Hitch
    I do have a solution for you, however the Draw-Tite 5" Offset Ball # 19308 mentioned in your question is not compatible with B&W gooseneck hitches. There a few compatible offset balls for your B&W Turnoverball Gooseneck Hitch, depending on the specific model that you have. To ensure you get the correct one, you just want to take a measurement from the locking pin hole to the bottom of the square base on your hitch ball. I have included an image that shows where you want to take this measurement....
    view full answer...
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  • Can the 4 Inch Offset Ball for B&W Turnoverball Be Used With the Anderson Ultimate
    For starters, the correct 4" Offset Ball for B&W Turnoverball Gooseneck Trailer Hitches that is needed to use on a Dodge Ram 2500/3500 is part # BWGNXA4085 or part # BWGNXA4685 for a Dodge Ram 1500, not part # BWGNXA4585 which is for a Toyota Tundra. That said, you can use this with your Anderson Ultimate 5th Wheel to Gooseneck but since the hitch ball will add height you will need to make adjustments to your coupler accordingly.
    view full answer...
  • What Reese Goose Box Do I Need for My 2021 Grand Design Solitude 3740BH?
    Thanks so much for the photos and the information! I went ahead and called my tech at Lippert, and she confirmed that your 2021 Grand Design Solitude 3740BH has a 1621HD pinbox This is important to know when determining the bolt pattern on your pinbox. Also, from my available specs, your trailer has a gross vehicle weight of 16,800 pounds. With all of this in mind, the Reese goose box you need is the Reese Goose Box 5th-Wheel-to-Gooseneck Air Ride Coupler Adapter # RP85FR. I went ahead...
    view full answer...
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  • 4" Hole Location For B&W Turnover Ball Gooseneck Hitch On a 2020 Toyota Tundra
    The hole for the B&W Turnoverball Underbed Gooseneck Trailer Hitch # BWGNRK1257 is to be placed at 42-3/8" from the rear of the truck bed and centered between the fenders on your 2020 Toyota Tundra. The hole location is the same for all bed lengths of your Tundra. This information is found in the installation instructions which I have linked below. A 4" Offset Ball # BWGNXA4585 can be used in place of the original ball for increased clearance and turning radius.
    view full answer...
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  • Goose Neck Trailer Hitch Receiver For Towing a 5,000LB Trailer With a 2021 Toyota Tundra 5-1/2 Bed
    The B&W Turnoverball Underbed Gooseneck Trailer Hitch # BWGNRK1257 for your 2021 Toyota Tundra with the 5-1/2' bed is rated for up to 30,000lbs towing and 7,500lbs of tongue weight. You will need to check your owners manual for your specific towing capacity as it ranges from 7,800-10,200lbs depending on how it is equipped. The 4" Offset Ball # BWGNXA4585 will help you gain some additional turning clearance. A Hopkins Endurance 5th Wheel/Gooseneck 90-Degree Wiring Harness # 41157 will...
    view full answer...
  • Will A Curt Offset Gooseneck Ball Fit Into A B&W Gooseneck Hitch
    I called my contact at Curt Manufacturing and they confirmed that the Curt 4" Offset Ball for Double-Lock Gooseneck Hitch part # C602 will not fit into the gooseneck ball location on a B&W gooseneck hitch such as the B&W Turnoverball Underbed Gooseneck Trailer Hitch part # BWGNRK1012. This is due to the fact that the Curt ball mounts for gooseneck hitches are circular in shape whereas the ball mounts for B&W gooseneck hitches are square. In order to gain a 4" offset with the B&W gooseneck...
    view full answer...
  • Gooseneck Hitch Recommendation for 2013 Toyota Tundra with 5-1/2 foot Bed
    For your 2013 Toyota Tundra with a 5-1/2 foot bed the best option will be the B and W Gooseneck hitch part # BWGNRK1257 with the 4 inch extender part # BWGNXA4585. The extension won't help much, but if your trailer has a very narrow nose like a livestock trailer this would be best shot. If the trailer has living quarters and a wide nose you really won't have a way to do it.
    view full answer...
  • Difference Between the Three Different B and W Offset Gooseneck Ball Adapters
    The three B and W Offset Gooseneck Balls are designed for three different applications. The part # BWGNXA4085 is the one that fits nearly all of the Turnoverballs whereas the part # BWGNXA4685 fits the # BWGNRK1309 (newer Ram trucks) and the part # BWGNXA4585 fits the # BWGNRK1257 (newer Toyota trucks).
    view full answer...
  • Can A Rotating Pin Box be used With A B&W Companion Gooseneck To 5th Wheel Adapter?
    Due to the a rotating pin box moving the pivot point off of the head of the hitch, it will cause too much movement and stress on an adapter like the B&W Companion # BWRVK3400 (sliding) or # BWRVK3500 (fixed). Due to this, you cannot use rotating pin boxes with this type of adapter, unfortunately. With that being said, what you may want to look at is the Reese Goose Box 5th-Wheel-to-Gooseneck Air Ride Coupler Adapter, like the # RP85FR for a 1621 pin box, coupled with an offset gooseneck...
    view full answer...
  • Which Offset Ball for B&W Turnover Ball Gooseneck Hitch in 2019 Ford F-350
    For the B&W Turnover Ball Gooseneck Hitch in your 2019 Ford F-350, you'd want to use the # BWGNXA4085. The difference between this offset ball and the one for the Tundra and the Ram 1500 is the depth of the gooseneck receiver where the ball sits. If you used either the BWGNXA4685 or the BWGNXA4585 the receiver won't be deep enough for the ball to secure into the hitch.
    view full answer...
  • Which B&W Offset Ball Will Fit A 2018 Ford F-250 Short Bed With A B&W Gooseneck Hitch Installed?
    For your 2018 Ford F-250 with the 6-3/4 foot bed, you will want to use the 4" Offset Ball # BWGNXA4085. This will fit your B&W Turnoverball # BWGNRK1116, which is the only B&W gooseneck hitch available for your truck, without any issue at all. There are other offset balls needed for a Toyota Tundra and a Ram 1500 ( # BWGNXA4585 and # BWGNXA4685 respectively), so there are a couple other models, but aren't really relevant for your truck.
    view full answer...
  • Is The B&W Companion 5TH Wheel Hitch Compatible With Turnover Ball On 2015 Toyota Tundra Short Bed?
    With the B&W Turnoverball Underbed Gooseneck Trailer Hitch # BWGNRK1257 on your 2015 Toyota Tundra you will be able to use the Fixed B&W Companion 5th Wheel Hitch # BWRVK3500 but you will need to contact B&W to have the correct attachment sent to you for the Toyota hitch. Do note that the according to B&W you will only be able to used the fixed 5th wheel hitch on your Tundra and this style Companion is not compatible with pivoting pin boxes. This will likely lead to clearance issues when...
    view full answer...
  • Is B and W Only Sliding Fifth Wheel Hitch that Fits Turnoverball Rail Kit
    B and W is the only company that makes a sliding hitch that fits directly to the Turnoverball rail kit with the part # BWRVK3400 but Curt makes their X5 adapter part # 16310 which fits the Turnoverball and adapts it to a set of above bed fifth wheel rails that standard hitches fit like the Curt A20 Slider part # C16541.
    view full answer...
  • Can 4 Offset B&W Gooseneck Ball be Used for More Clearance on a 5th Wheel Trailer
    If you have the B&W Gooseneck Hitch # BWGNRK1257 on a Toyota Tundra then you can use the 4" Offset Ball # BWGNXA4585 to give yourself some more clearance. B&W also has the 4" Offset Ball # BWGNXA4085 which is more of a standard option if you don't have a Tundra. These can be used with any kind of gooseneck coupler without jeopardizing the integrity of the offset ball. If you have a different gooseneck hitch I'd need to know what you're using to see if we have a similar product that fits.
    view full answer...
  • 4" Offset Gooseneck Ball For B&W Turnover Ball Hitch On a 2020 Ford F-250 Short Bed
    You will need the 4" Offset Ball # BWGNXA4085 for the B&W Turnoverball Underbed Gooseneck Trailer Hitch # BWGNRK1116 on your 2020 Ford F-250 short bed. The Offset Ball # BWGNXA4585 that you found is only for the Hitch # BWGNRK1257 on a Toyota Tundra due to the hitch being shorter than a traditional B&W Turnover Ball.
    view full answer...
  • Towing Capacity of 2017 Toyota Tundra Crewmax 5.7L V8
    According to pages 167-169 of the online owner's manual for your 2017 Toyota Tundra Crewmax 5.7L V8 the most trailer weight this truck can tow is 10,100-lbs. You will want to refer to your printed manual too since this maximum capacity depends on the specific engine and drivetrain and whether or not you have the optional towing package. Many versions have lower capacities. You can also check with your local dealership using the truck's VIN. For 5th wheel towing in this truck your 5-1/2-foot...
    view full answer...
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  • Gooseneck Trailer Hitch Fit For 2020 Toyota Tundra With 5-1/2 Foot Bed
    We do have an option for a gooseneck trailer hitch for your 2020 Toyota Tundra with a 5-1/2 foot bed, but I checked with Curt and the # C60751 is not a fit for your truck. So I checked with B&W, who confirmed their gooseneck hitch will fit and install in your Tundra: - B&W Turnoverball Underbed Gooseneck Trailer Hitch # BWGNRK1257 So while it isn't the hitch you asked about, the Turnoverball is considered by most people to be the premier gooseneck in the industry. The reason is because...
    view full answer...
  • Recommended B&W 4 Inch Offset Ball For A 2017 Dodge Ram 3500
    The 4 inch Offset Ball for B&W Turnoverball Gooseneck Trailer Hitches # BWGNXA4085 is the offset that will work with your 2017 Dodge Ram 3500. It has a powder coated steel that resists corrosion and is made in The USA. The weight capacity for the ball is up to 20,000 pounds and has a vertical load limit of 5,000 pounds. I attached a review video link below.
    view full answer...
  • Gooseneck Installation Kit and In-Bed 7-Way Vehicle Connector for 2021 Toyota Tundra 6 1/2 Foot Bed
    For your 6 1/2' bed 2021 Toyota Tundra, I recommend the B&W Turnoverball Underbed Gooseneck Trailer Hitch w/ Custom Installation Kit item # BWGNRK1257. B&W is the best in the business and you will have no issues installing the Turnover Ball system in your truck. This hitch is custom designed for your Tundra. The included mounting brackets bolt to existing holes in your truck's frame. While some modification is required - you will need to cut a 4" diameter hole in your bed for the hitch...
    view full answer...
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  • B&W Gooseneck Hitch for a 2021 Toyota Tundra
    I have a great gooseneck hitch for your 2021 Toyota Tundra with a 6 1/2 foot bed. I recommend the B&W Turnoverball Underbed Gooseneck Trailer Hitch item # BWGNRK1257. The B&W gooseneck hitch has a gross towing weight of 30,000 lbs a vertical load limit of 7,500 lbs, and 2-5/16" ball. It is custom fit for your Tundra, the mounting kit requires no welding, and the truck bed does not have to be removed. You will have to cut a 4" diameter hole into the bed. The hitch is powder coated steel...
    view full answer...
  • Can the Reese Goose Box RP85FR be Used With a Short Bed Truck
    We do have a variety of offset gooseneck balls available to help with short bed trucks. That being said, this will depend on the gooseneck hitch and the vehicle that is towing. For example, the B&W Offset Gooseneck Ball # BWGNXA4585 will only fit the B&W Turnoverball installed on a Toyota Tundra. Again, this is just an an example and you will need to confirm which system you have in your truck. That also being said, these are technically supposed to be used with long bed trucks. They can...
    view full answer...


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