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Recommended 16,000 lbs Goosebox for a 5th Wheel Trailer w/ a 1621 Pin Box

Question:

Will this fit a 2021 grand design reflection 337rls? Reese Goosebox 94716 I am attaching the pictures you requested of the pin sticker from our 2021 337RLS Grand Design Reflection 5th wheel. As we discussed, I am looking to install the Reese Goosebox. I believe the 16K model is more than adequate for the trailer. I just want to order the correct one and spacers if needed. Thank you for your help!!

1

Helpful Expert Reply:

Thanks for the pictures and the additional information! I just spoke with my rep at Lippert and your 2021 337RLS Grand Design Reflection 5th Wheel has a 1621 Pin box.

You will want the Reese Goose Box 5th-Wheel-to-Gooseneck Air Ride Coupler Adapter item # RP94716. This goosebox has a 16,000 lbs capacity and includes everything needed to install it on your trailer. You will not have to purchase additional spacers.

You will need safety chains as they are not included. I recommend the Tow Ready Safety Chain Kit with Clevis Hooks - 44" Long - 16,000 lbs - Qty 2 item # 49150.

I have linked an installation video below.

2021 grand design reflection 337rls Sticker
2021 grand design reflection 337rls Sticker
(click to enlarge)
2021 grand design reflection 337rls Kingpin
2021 grand design reflection 337rls Kingpin
(click to enlarge)
helpful expert reply by:
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Jerred H

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