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MORryde rubber pin box RPB72-1621HD-03 is for RV owners, techs, and dealers who need to match a MORryde component by the real part number instead of guessing from a generic description. Use this listing to confirm part RPB72-1621HD-03, review the visible specs, and choose the right replacement or upgrade for the job.
Features & Specifications
- Patented Rubber Shear Spring Technology: Dampens transmission of forces from the fifth wheel to the tow vehicle, absorbing road shock while maintaining full horizontal planar motion
- Eliminates Chucking & Jerking: Reduces back-and-forth movement up to 3 inches and side-to-side movement up to 1.5 inches for a dramatically smoother ride
- Jerk-Free Starts & Stops: No more uncomfortable lurching when accelerating or braking with your fifth wheel
- Boosts Towing Performance: Greatly improves maneuverability and decreases wear and tear on both your RV and truck
- Long Component Life: No air-lifted springs to leak, no shock absorbers to replace - just continuous, reliable performance
- Simple Installation: Takes approximately one hour to install on most fifth wheels
- Direct Replacement: Specifically designed to replace Lippert 1621HD pin boxes on fifth wheels with GVWR under 11,500 lbs
Why Choose RPB72-1621HD-03?
This page is built around part-number accuracy: confirm the MORryde SKU, check the product size or application notes, and compare nearby options before you order. That matters on RV repairs because similar-looking parts can have different widths, ratings, mounting points, or intended applications.
Fitment limit: match this item to your existing MORryde part number, RV measurement, or MORryde documentation. If your measurement, frame, door width, capacity, or application does not match the listing, choose the correct sibling part instead of forcing the wrong one.
Compare rubber pin box
Not sure which MORryde option is right? Compare this product with nearby ERVP listings and verify the part number before ordering.
| Model / Part # | Listing | Best For | View Details |
|---|---|---|---|
| RPB72-1621HD-03 | Rubber Pin Box RPB72-1621HD-03 Replaces Lippert 1621HD Under 11,500 lbs GVWR Fifth Wheel | Fifth-wheel pin box replacement when the listed frame/rating matches | Current Product |
| RPB72-1621HD-04 | Rubber Pin Box - RPB72-1621HD-04 Replaces Lippert 1621HD 11,501-14,000 lbs GVWR Fifth Whee | Fifth-wheel pin box replacement when the listed frame/rating matches | View Details |
| RPB72-1621SHD-TA-05 | Rubber Pin Box RPB72-1621SHD-TA-05 Replaces Lippert 1621SHD +2" 14,001-18,000 lbs GVWR Fif | Fifth-wheel pin box replacement when the listed frame/rating matches | View Details |
| RPB72-1621HD-05 | Rubber Pin Box RPB72-1621HD-05 Replaces Lippert 1621HD 14,001-18,000 lbs GVWR Fifth Wheel | Fifth-wheel pin box replacement when the listed frame/rating matches | View Details |
Tip: MORryde part numbers are specific. Check the SKU and the physical measurement or rating on your RV before choosing between similar listings.
Technical Specifications
| Part Number | RPB72-1621HD-03 |
| Brand | MORryde |
| Shopify SKU / Vendor Alias | RPB72-1621HD-03-M |
| Shipping Weight | 141 lb |
| Product Type | Fifth Wheel Towing |
What's Included
Includes the MORryde product listed for part number RPB72-1621HD-03. Reuse your existing installation details and MORryde documentation to confirm whether separate hardware, brackets, accessories, or companion parts are needed for your RV.
Compatible Models & Alternatives
Use the comparison table above for nearby MORryde options. Related parts should be chosen by confirmed part number, size, capacity, door width, frame type, or documented MORryde application. sibling_products, dimension_config, current_dimensions
Frequently Asked Questions
How do I confirm this is the right MORryde part?
Match the listed SKU (RPB72-1621HD-03) to your old part, owner documentation, or MORryde fitment information. Do not rely on appearance alone.
Is this an OEM MORryde replacement?
This listing is for a MORryde-branded product sold by Elkhart RV Parts. Verify the part number and specs against your RV before ordering.
What should I measure before ordering?
Measure the application-specific details shown in the listing, such as width, length, rise, rating, frame type, hose size, or mounting style when those specs apply.
What if my RV uses a similar but different MORryde part?
Choose the exact matching SKU or a verified sibling option. Similar MORryde parts can differ in small ways that matter during installation.
Why Buy from Elkhart RV Parts?
Elkhart RV Parts focuses on real RV replacement parts with clear part-number identification, practical fitment notes, and fast support from a team located in Elkhart, Indiana.
| Maximum gross vehicle weight rating (pounds) | 11500 |
|---|---|
| Back-and-forth movement absorption (inches) | 3 |
| Side-to-side movement absorption (inches) | 1.5 |
| Material | Rubber shear spring technology |
| Compatible with | Wide range of trailer weight ratings |
| Testing standard | CSA fatigue tested |
- What is the maximum gvwr for the morryde rpb72-1621hd-03 5th wheel pin box? The MORryde RPB72-1621HD-03 is designed for trailers with a GVWR under 11,500 lbs.
- How does the morryde rubber pin box improve towing comfort? It reduces back-and-forth movement and absorbs energy transfer from the trailer to the tow vehicle, providing a chuck-free, jerk-free, and smoother ride.
- What are the key features of the morryde rpb72-1621hd-03 pin box? Key features include patented rubber shear spring technology, up to 3 inches of back-and-forth movement absorption, up to 1.5 inches of side-to-side movement absorption, compatibility with various trailer weights, and it reduces chucking and jerky starts and stops.
- Is the morryde rpb72-1621hd-03 compatible with lippert 1621hd pin boxes? Yes, the MORryde RPB72-1621HD-03 is a direct replacement for the Lippert 1621HD pin box.
- Are there any optional accessories available for this pin box? Yes, optional accessories include the Pull Rite Adapter Plate (RPB77-001) and the Gooseneck/Andersen Hitch Adapter Kit (RPB77-006).
Factory-Fresh OEM Parts — the same brands installed in new RVs straight from Elkhart. Genuine, name-brand components made to order — never generic, never outdated. Sourced directly from the original RV manufacturers for perfect fit and factory-level quality.