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Correct Reese Sidewinder/Revolution Pin Box for Grand Design Reflection 337RLS


I reached out to Lippert and they answered by saying This RV was originally equipped with pin box part# 127026 description: 1621 15.5K#. That is the information to relay to etrailer or Reese to match up their product. Given that information, are you confident the RP34FR will fit my GD 337RLS and will be a safe upgrade for this rig? Thanks!


Helpful Expert Reply:

The Reese Sidewinder 5th Wheel King Pin with Rotating Turret part # RP34FR is correct and a confirmed fit for a Grand Design Reflection 337RLS. The upgrade is safe and maintains the factory warranty.

helpful expert reply by:
Conner L

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