Is MORryde or Rota-Flex a Better 1621 Pin Box Replacement?
Published 04/24/2024 >
Products Featured in This Question
Question:
Trying to decide Moryyde or roto flex to replace 1621 I tow with a 6.4 bed so don’t want to lose any clearance or get the rv closer to the tow vehicle Any thoughts on what one
asked by: Donald F
Expert Reply:
Hey Donald, thanks for reaching out!
I recommend using the MORryde Cushioned Pin Box # MR84VR over the Curt Rota-Flex # LC328330 any day because it has better cushioning technology. Back in the day when the Rota-Flex was first released it was top-notch, and while it's still an effective pin box, the MORryde system performs better.
The MORryde number I referenced above is for 14K - 18K trailers. If you have a different GVWR then you'll either need part # MR74VR for 11.5K - 14K trailers or part # MR64VR which is everything up to 11.5K trailers.

Product Page this Question was Asked From
Trailair Rota-Flex 5th Wheel Pin Box - Lippert 1621 or 1621HD - 18,000 lbs
- 5th Wheel Pin Box
- Upgraded Pin Box
- Absorbs Road Shock and Reduces Chucking
- 18000 lbs GTW
- Air Ride Suspension
- Fixed Turret
- Lippert 1621
- Lippert 1621HD
- CURT
more information >
Featured Help Information
Instructions
Miscellaneous Media
Continue Researching
- Shop: MORryde Cushioned 5th Wheel Pin Box for Up to 11.5K Trailers w/ Lippert 1621 and 1621HD
- Search Results: rpb72~1621hd~04
- Shop: Curt Helux Shock-Absorbing 5th Wheel Pin Box - 24K GTW - 6,200 lbs TW
- Shop: Curt Helux Shock-Absorbing 5th Wheel Pin Box - 24K GTW - 5,400 lbs TW
- Search Results: sre4000
- Search Results: mr97zr
- Shop: MORryde Cushioned 5th Wheel Pin Box for 14K to 18K Trailers w/ Lippert 1621 and 1621HD
- Q&A: How Many SumoSprings Kits Does Reflection 337RLS Need
- Q&A: Can Taller Trailer Suspension Equalizer Increase Trailer's Ride Height
- Q&A: Comparing MORryde AllTrek and SRE4000 Premium Rubber Suspension Equalizers
- Q&A: Upgrading from MORryde CRE3000 Equalizers to a SRE4000 Trailer Suspension System
- Search Results: gen~y hitch 5th wheel pin box
- Shop: MORryde Shock Absorbing Suspension Equalizers for Tandem Axle Trailers w/ 35" Wheelbase - 8K
- Shop: MORryde Suspension Upgrade Kit for Tandem Axle Trailers - 2-1/4" Long Shackle Straps
- Shop: SumoSprings Trailer Helper Springs w/ Line Relocation Bracket - Single Axle - 5K to 8K - Overslung
- Article: 4 Steps to Choosing Your 5th Wheel Pin Box
- Q&A: Correct MORryde Pin Box for Grand Design Reflections 337RLS
- Search Results: curt 5th wheel hitch
- Search Results: curt helux
- Q&A: Will Gen-Y 5th Pin Boxes Void The Lippert Frame Warranty
- Q&A: Which Pin Box Is Better At Absorbing Chucking The Gen-Y Pin Box Or Curt Flex Air
- Search Results: morryde 5th wheel pin box
- Video: Review of MORryde Fifth Wheel King Pin - Upgraded Cushioned Pin Box - MR84VR
- Video: Gen-Y Hitch Shock Absorbing 5th Wheel Pin Box Spec Review
- Video: All About the Shocker Hitch Quick Air 5th Wheel Pin Box
- Video: Breaking Down the Curt Flex Air 5th Wheel Pin Box
- Video: PullRite Manufacturer Highlight - SuperGlide 5th Wheel Hitches
- Shop: Suspension Enhancement
- Article: How to Raise Your Travel Trailer Height
- Article: Trailer Wiring Diagrams