Which MORryde Pin Box will Replace RPB72-1621SHD of Jayco Seismic
Updated 05/26/2026 | Published 05/09/2026
Question:
I have the RPB72-1621SHD that has 23,000 GVWR printed on the label. Would I need to replace all the parts shown in the diagram along with MR74VR? I would prefer to do so as this is on a 2013 Jayco Seismic. Do you sell a complete kit?
asked by: Lewis M
Expert Reply:
Hey Lewis, since you have a 1621 style pin box on your Jayco Seismic the correct MORryde cushioned pin box to replace it would be the part # MR24VR that you referenced. This wouldn't require any additional components beyond what comes with the pin box. With that said this specific pin box was designed for trailer weights between 11.5k and 14k. Do you know what your Seismic weighs or the GVWR? If you give me the specific Seismic model I can also look it up for you.
(click to enlarge)
Lewis M.
5/13/2026
The Seismic Model is the 3914.
Jameson C.
5/14/2026
Jameson C.
5/19/2026
Product Page this Question was Asked From
MORryde Cushioned 5th Wheel Pin Box for 18K to 23K Trailers w/ Lippert 1621SHD
- 5th Wheel Pin Box
- Upgraded Pin Box
- Reduces Chucking
- 23000 lbs
- Rubber Spring Suspension
- Fixed Turret
- Lippert 1621SHD
- MORryde
more information >
Featured Help Information
Instructions
Continue Researching
- Search Results: bw rvk3710
- Search Results: b&w
- Search Results: 5th wheel pin box
- Search Results: b&w companion hitch
- Shop: Fifth Wheel Hitch
- Shop: B&W Companion OEM 5th Wheel Hitch for Chevy/GMC Towing Prep Package - Dual Jaw - 20,000 lbs
- Shop: B&W Companion OEM 5th Wheel Hitch for Chevy/GMC Towing Prep Package - Dual Jaw - 20,000 lbs
- Shop: Replacement #03 Rubber Shear Spring for MORryde Rubber Pin Boxes for Trailers Under 11,500 GVWR
- Article: Trailer Wiring Diagrams
- Q&A: What Is An OEM Prep Package And How Do I Know If I Have It
- Shop: Trailer Hitch
- Search Results: trailer hitch
- Shop: B&W Companion OEM 5th Wheel Hitch w/ Slider for Chevy/GMC Towing Prep Package - Dual Jaw - 20K
- Video: B&W Companion OEM 5th Wheel Hitch Manufacturer Breakdown
- Q&A: Does etrailer Carry Furrion Chill Cube w/ Heat Pump to Replace Dometic Duo-Therm
- Search Results: trailer tires and wheels
- Article: Brake Controller 7- and 4-Way Installation Kit (ETBC7)
- Shop: Trailer Wiring
- Video: Firestone Ride-Rite Air Bags with Easy Mount Compressor Feature Breakdown
- Article: How to Measure for Trailer Hitch Drop
- Shop: Suspension Enhancement
- Search Results: fifth wheel hitch
- Shop: B&W Companion OEM 5th Wheel Hitch for Ram Towing Prep Package - Dual Jaw - 25,000 lbs
- Q&A: What is the Difference Between Demo Autoslide # DM39SV and # DM29GV for 2026 GMC?
- Article: 4 Steps to Choosing Your 5th Wheel Pin Box
- Shop: Curt Powered Tail Light Converter with 4-Pole Flat Trailer Connector
- Video: One Year Later | Firestone Airide Helper Springs and Heavy Duty Air Compressor
- Q&A: Does Truck with 6-1/2 ft bed Have to Use Slider Hitch for Turning Clearance with Fifth Wheel Hitch
- Shop: B&W Ball and Safety Chain Kit for Ford, GM, Chevy, and Nissan Titan XD Underbed Gooseneck Hitch
- Shop: Gooseneck Hitch
on 5th Wheel Pin Box
Jameson C.
5/12/2026
Since you have a 19k GVWR RV the correct MORrdye pin box replacement would be the part # MR74VR. This is the correct weight rating.