Demco Adjustable Trailer Coupler 2-5/16" Ball 21K eZ-Latch
Heavy-duty USA-made Demco adjustable coupler for 3" channel brackets, built for 2-5/16" ball fit, 21,000 lb capacity, and confident eZ-Latch hookup in demanding trailer applications.
Overview
This listing is for the Demco coupler only. If you need a heavy-duty adjustable channel coupler that keeps pace with real trailer work, this one checks the boxes: 2-5/16" ball fit, 21,000 lb rating, USA-made construction, and Demco’s eZ-Latch mechanism for secure hookup and disconnect. The adjustable channel mount gives you height flexibility, while the powder-coated steel body and 500-hour salt spray rating make it a strong choice for utility, equipment, and marine-exposed applications.
R&P Service Insight
Adjustable channel couplers earn their keep when you need a stronger, cleaner trailer-to-tow-vehicle setup without guessing on tongue height.
- Better Height Match: The channel mount lets you dial in coupler position for a more level hookup.
- Fast, Confident Coupling: Demco’s eZ-Latch design is built for simple connection and dependable ball engagement.
- Built for Hard Use: The powder-coated steel body and 500-hour salt spray rating help this coupler stand up to work and weather.
R&P Knowledge Hub
Compatibility: Verified for 3" wide channel bracket applications using a 2-5/16" hitch ball.
Vehicle / System Fit: Trailer tongue coupler replacement or upgrade where an adjustable channel mount is already part of the setup.
Installation Notes: Confirm bracket width, ball size, lock pin clearance, and required mounting hardware before ordering. This is a coupler-only listing and does not include installation hardware.
Performance Insight: The cast ball coupler design combines heavy-duty towing capacity, adjustable fitment flexibility, and corrosion resistance in one proven Demco setup.
R&P Repair Insight
Most ordering mistakes on adjustable couplers come down to bracket width, ball size, or assuming hardware is included. This listing is for the coupler only, so verify your mounting setup before checkout.
- Bracket Width: Built for a 3" wide channel bracket application.
- Ball Fit: Fits a 2-5/16" hitch ball only.
- Lock Pin Clearance: Minimum span needed for pin lock through body is 3", and minimum span through latch is 1-1/8".
Features
USA-Made Demco Build
Built in the USA for heavy-duty trailer coupling applications where strength and reliability matter.
Adjustable Channel Mount
Lets you set coupler height to better match trailer and tow vehicle setup.
eZ-Latch Hookup System
Designed for simple hookup, secure ball engagement, and easier day-to-day use.
Corrosion-Resistant Construction
Powder-coated steel construction with a 500-hour salt spray rating for strong resistance in harsher environments.
Specifications
| Specification | Detail |
|---|---|
| Part Number | DM15791-97 |
| Product Type | Adjustable Trailer Coupler |
| Application | 3" wide channel bracket |
| Material / Finish | Steel with powder-coated finish |
| Key Measurement | 8-1/8" long x 2-7/8" wide |
| Fitment | 2-5/16" ball / 3" channel bracket |
| Weight Capacity | 21,000 lb |
| Lock Pin Hole Diameter | 5/16" |
Fitment / Application
| Category | Details |
|---|---|
| Vehicle / System | Trailer tongue / adjustable channel coupler setup |
| Primary Fit | 3" wide channel brackets using a 2-5/16" hitch ball |
| Secondary Fit | Heavy-duty trailer and marine-exposed applications needing adjustable coupler height |
| Notes | Coupler only. Verify bracket width, ball size, lock pin clearance, and required mounting hardware before ordering. |
Included Components
| Quantity | Item |
|---|---|
| 1 | Demco Coupler (DM15791-97) |
| Not Included | Mounting bolts, lock nuts, washers, and other installation hardware |
