DH-2 Heavy-Duty Weld-On Dump Trailer Tailgate Hinge with Grease Zerk
Industrial-grade raw steel weld-on hinge designed for the high-stress environment of dump trailers and freight doors, featuring a built-in grease fitting to prevent seizing.
Overview
The DH-2 is the industry standard for "loose-tolerance" hinges, engineered to maintain smooth operation even if a trailer frame flexes or twists under heavy loads. This R&P Carriages weld-on hinge is a high-quality industrial solution designed for applications where standard precision hinges might bind. Its raw steel construction allows for immediate, deep-penetrating welds, making it the top choice for manufacturers and repair shops dealing with heavy-duty tailgate assemblies.
R&P Service Insight
Ensure a long service life for your tailgate assembly with these professional installation tips:
- Anti-Seize: Use the integrated Grease Zerk regularly to flush out road salt and grit.
- Weld Prep: This is raw steel; ensure surfaces are degreased and clean for the best bond.
- Flex-Ready: The 1/16" to 1/8" gap is intentional to prevent binding during frame twist.
R&P Knowledge Hub
Compatibility: Universal weld-on design for steel frames and tailgates; cross-ref 7356 / TLU32-0004.
Vehicle / System Fit: Dump trailers, Horse trailers, Freight trucks, and Service bodies.
Installation Notes: Multiple hinges must be aligned along the same vertical or horizontal axis to ensure smooth rotation.
Performance Insight: Heavy 5/16" to 3/8" steel plate thickness ensures the hinge will not deform under the weight of heavy tailgates or ramps.
Brand & Fitment Note
Selling Brand: R&P Carriages / DH-2 Series
Application Reference: Any OEM or platform names in this listing describe compatibility, fitment target, or application style only where supported by verified dimensions and configuration details.
What This Means: This listing is for a heavy-duty aftermarket industrial component designed for OEM-style dump and utility applications.
Before Ordering: Verify dimensions and clearance requirements. This product arrives as raw steel and requires paint or coating after installation to prevent surface rust.
R&P Repair Insight
Before ordering, check your existing hinge dimensions to ensure a proper replacement fit.
- Bolt Check: Verify the hinge pin (bolt) is not bent; designed for standard 1/2" or 5/8" grade bolts.
- Rotation Check: Offers up to 270° of rotation for full clearance during unloading.
- Orientation: Install with the bolt head facing "up" on one side to prevent gravity-related hardware loss.
Features
Integrated Grease Zerk
Allows for easy lubrication to prevent corrosion and seizing in high-moisture or high-grit environments.
Loose-Tolerance Design
Prevents gate binding caused by frame flex or minor installation misalignment during high-stress use.
High-Stress Build
Constructed from 5/16" to 3/8" thick raw steel for industrial-strength durability and deep weld penetration.
270° Range of Motion
Allows tailgates and doors to swing completely out of the way for unobstructed loading and unloading.
Specifications
| Specification | Detail |
|---|---|
| Part Number | DH-2 |
| Brand | R&P Carriages |
| Product Type | Weld-On Hinge |
| Overall Length | 5-1/2" |
| Material / Finish | Raw Heavy-Duty Steel |
| Pin Diameter | Standard 1/2" or 5/8" Bolt |
| Strap Dim. | 4" L x 2-3/8" W |
| Hinge Height | 1-1/2" |
Fitment / Application
| Category | Details |
|---|---|
| Vehicle / System | Dump Trailers & Freight Trucks |
| Primary Fit | Dump Trailer Tailgates |
| Secondary Fit | Utility Trailer Ramps / Service Doors |
| Notes | Ideal for high-grit environments where frequent lubrication is mandatory. Paint after welding. |
Included Components
| Quantity | Item |
|---|---|
| 1 | DH-2 Weld-On Barrel (Female Side) |
| 1 | DH-2 Weld-On Strap (Male Side) |
| 1 | Integrated Grease Zerk (Pre-installed) |
| NOT INCLUDED | Hinge Bolt/Pin and Nut (Sold Separately) |
