4" Gray Plastic Door Holder – Ball & Socket Trailer Door Retainer
A compact 4" gray plastic ball-and-socket door holder for trailer, RV, cargo, utility, and work-truck doors. Designed for smaller doors, tight spaces, and applications where a 4" center-to-center holder matches the original setup.
Key Measurements & Specs
| Specification | Detail |
|---|---|
| Part Number / SKU | DHB4 |
| Brand | R&P Carriages |
| Product Type | Ball-and-socket trailer door holder / door retainer |
| Primary Measurement | 4" center-to-center |
| Material / Finish | Gray thermoplastic |
| Quantity Included | One (1) door holder |
| Mounting Hardware | Not included; use screws appropriate for your door and trailer body material |
Fitment / Application
| Category | Details |
|---|---|
| Vehicle / Trailer / System | Trailer, RV, utility, cargo, service compartment, and work-truck door applications |
| Primary Fit | Universal-style fit where a 4" center-to-center ball-and-socket door holder matches the required spacing |
| Customer Reference | Customer-referenced Wells Fargo hold back comparison included as a helpful visual reference for this style of door holder |
| Fitment Method | Measure your existing holder center-to-center and confirm mounting location before ordering |
| Important Note | This listing is for the 4" version. Some Wells Fargo trailer applications may use longer 6", 8", or 10" door stays. Verify length and mounting points before ordering. |
Top Features
| Feature | Buyer Benefit |
|---|---|
| Ball-and-Socket Design | Helps hold trailer and compartment doors open while allowing quick release when closing |
| 4" Center-to-Center Size | Useful for smaller doors, tight spaces, and existing 4" door holder installations |
| Gray Thermoplastic Construction | Lightweight, corrosion-free material for common trailer door applications |
| Universal-Style Application | Works for many trailer, RV, cargo, utility, and work-truck doors when measurements match |
Overview
The 4" Gray Plastic Door Holder is a compact ball-and-socket style door retainer used to help keep trailer, RV, cargo, utility, and service-body doors open during loading, unloading, and access. Its 4" center-to-center spacing makes it a practical replacement option for smaller doors, shorter hold-back locations, and installations where the existing holder uses the same measurement and mounting style.
R&P Service Insight
Door holders are simple parts, but fitment depends heavily on matching length and mounting location. Always measure the old holder before ordering.
- Measure First: Confirm the center-to-center distance on your existing door holder.
- Check Door Swing: Make sure the 4" length gives the door the correct open position without binding.
- Choose Hardware Carefully: Mounting screws are not included; select hardware suitable for your door and wall material.
R&P Knowledge Hub
Compatibility: Universal-style fit for applications where a 4" center-to-center ball-and-socket door holder matches the original part.
Vehicle / System Fit: Commonly used on trailer doors, RV doors, cargo trailer doors, service compartments, utility bodies, and work-truck doors.
Installation Notes: Align the holder so the door opens to the desired position without over-stressing the socket or fasteners.
Performance Insight: The ball-and-socket design gives a secure hold while still allowing the door to release when pulled closed.
Customer Reference
Side-by-Side Comparison: The image below shows a customer-referenced Wells Fargo hold back beside a gray plastic ball-and-socket door holder sold by R&P Carriages.
Fitment Reminder: This is a helpful visual reference for this style of door holder, not a guarantee that every Wells Fargo trailer uses the 4" length. Confirm your center-to-center measurement before ordering.
Brand & Fitment Note
Selling Brand: R&P Carriages
Application Reference: Wells Fargo trailer reference is based on customer-reported replacement experience and the side-by-side comparison shown above. It is provided as an application reference only.
What This Means: This listing is for a R&P Carriages 4" gray plastic ball-and-socket door holder, not a guaranteed OEM-branded Wells Fargo part.
Before Ordering: Verify your required length, mounting points, door swing, and hardware needs before installation.
R&P Repair Insight
Replacing a worn or missing door holder can make trailer access easier and help keep the door from swinging freely while parked or loading.
- Length Check: This listing is the compact 4" size. Confirm that your door does not require a longer 6", 8", or 10" holder.
- Mounting Check: If old screw holes are worn, repair the mounting surface before installing the new holder.
- Door Position Check: Test the open-door angle before final tightening to avoid binding or over-extension.
Features
4" Center-to-Center Door Holder
Designed for applications requiring a compact 4" ball-and-socket style door retainer.
Gray Thermoplastic Construction
Lightweight plastic construction is suitable for common trailer, RV, cargo, and utility door use.
Ball-and-Socket Hold-Open Design
Helps keep doors open during loading, unloading, service access, and general trailer use.
Compact Replacement Option
A practical choice for smaller doors, tighter mounting areas, and short hold-back applications where 4" spacing matches.
Included Components
| Quantity | Item |
|---|---|
| 1 | 4" gray plastic ball-and-socket door holder |
| Not included | Mounting screws / installation hardware |
Final Verification Note
Before ordering, confirm that your current holder uses a 4" center-to-center length and that the mounting locations match your trailer door and body. Some trailer applications may use longer door stays, including 6", 8", or 10" versions.