What is the Correc t PullRite Capture Plate for a Keystone Alpine 3701FL 5th Wheel
Updated 09/26/2025 | Published 04/26/2025
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Question:
We have a Keystone Alpine 3701FL camper, buying a 2024 Ford King Ranch 350. It already has a pull right 5th wheel, we need the plate that goes on the pin of the camper. Which player do I need?
asked by: BRAD B
Expert Reply:
Hey Brad, the capture plates for the PullRite SuperGlides are pin box specific. Can you give me the brand and model number of the pin box on your Alpine 3701FL? Unfortunately, this information isn't publicly available.
From my research, it looks like most of those trailers came with the Rota-Flex pin box. If that is what you have, then you'll just want to measure the width of the pin box. If your pin box measures 13-3/8 inches wide, then you'll want part # PUL26RR. If your pin box measures 13-5/8 inches wide, then you'll want part # PUL38RR.
If you have a different brand pin box, please send me the brand and model number (which should be on a sticker or stamped on the pin box) and I'll be happy to find the right capture plate for you.
Product Page this Question was Asked From
PullRite SuperGlide Quick Connect Capture Plate for 13-3/8" Curt/Trailair Rota-Flex Pin Boxes
- Accessories and Parts
- 5th Wheel Pin Box
- Locking Plate
- Trailair Pin Box
- PullRite
more information >
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John H.
9/26/2025
Hey Brad, did you have a chance to check the brand and model of your pin box on the Alpine 3701FL? I'm here to help you find the right capture plate if you're still looking for a solution.