Can I Use A Curt A20 With A Reese Sidewinder On A Ram Truck With The Rambox
Question:
Hi, I have a 2024 East to West fifth wheel RV with a Rhino pin box, I also have a short bed truck 5.5Ft with Rambox. I have a curt A20 hitch on it, but because of the short bed and rambox I can’t pull this RV as is. I’ve been looking at the sidewinder as a solution but I’m getting a lot of mixed information as to which one to get and which wedge works with curt A series, but one of the sidewinders on your page says it’s not compatible with curt A series, and the other doesn’t say that… so now I’m massively confused, can you point me in the right direction on what to buy? And will I be able to keep the curt A20?
asked by: Jay L
Expert Reply:
Hey Jay. It sounds like you are on the right track here because a sidewinder pin box will be your only option for pulling your 5th wheel since you have a short bed truck with the Rambox.
That said, you are right that the Reese Sidewinder cannot be used with the Curt A20 5th wheel hitches. So, you would either need to use a different hitch like a B&W # BWRVK3255 or find a different compatible sidewinder. Using a B&W hitch is what I recommend since the Reese sidewinder is the only aftermarket option we offer.
In order to recommend a sidewinder pin box, I will need to know the pin box size or number of the current pin box. There should be a sticker on the current pin box with the model number and serial number and stuff. If this sticker does not show the pin box size we can usually use the model number and SN to determine this.
For example, the Reese Sidewinder 5th Wheel King Pin with Rotating Turret # RP34FR will replace the Lippert 1621 and 1621 HD pin boxes as well as a few other common sizes. This would go with the wedge # SWW-06 which is made specifically for the Patriot 5th wheel hitch. If you can confirm the number of your pin box, or even post the sticker info in the comments below I am happy let you know what your options for replacing it are.
Feel free to reach out if you have further questions.

Products Referenced in This Question
B&W Patriot 5th Wheel Trailer Hitch - Dual Jaw - 18,000 lbs
- 5th Wheel Hitch
- Fixed Fifth Wheel
- Above Bed Rails
- 4500 lbs Vertical Load
- 18000 lbs GTW
- Double Pivot
- Standard - Double Jaw
- 16 - 19 Inch Tall
- B and W
more information >
Sidewinder Wedge for Curt A Series 5th Wheel Trailer Hitches
- Accessories and Parts
- 5th Wheel Pin Box
- Wedges
- Curt 5th Wheel
- CURT
more information >
Reese Sidewinder 5th Wheel King Pin with Rotating Turret - 20,000 lbs
- 5th Wheel Pin Box
- Upgraded Pin Box
- Provides Turning Clearance
- 20000 lbs GTW
- Rotating Turret
- Fabex 663
- Fabex 665
- Lippert 0719
- Lippert 1621
- Lippert 1621HD
- M and M 663
- M and M 665
- Lippert Rhino
- Reese
more information >
5th Airborne Custom Wedge for B&W Fifth Wheels
- Accessories and Parts
- 5th Wheel Pin Box
- Wedges
- B and W 5th Wheel
- Reese
more information >
Product Page this Question was Asked From
Sidewinder Wedge for Curt A Series 5th Wheel Trailer Hitches
- Accessories and Parts
- 5th Wheel Pin Box
- Wedges
- Curt 5th Wheel
- CURT
more information >
Featured Help Information
Instructions
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Jay L.
5/6/2024
Thank you Jesse for the information. I have a Lippert LCI Item: 2023020436. S/N S011102397. I don’t see a way to add the picture but those are the numbers on the Rhino Pinbox. Which sidewinder should I get for this? Thank you in advanced!