Demco Adjustable Trailer Coupler 2-5/16" Ball 21K eZ-Latch
Buyer-ready Demco adjustable coupler for 3" wide channel brackets, built for 2-5/16" ball fit, 21,000 lb towing capacity, and secure eZ-Latch hookup in demanding trailer applications.
Overview
This listing is for the coupler only. If you need a heavy-duty adjustable channel coupler that is built for real trailer work, this Demco unit delivers: USA-made construction, a 2-5/16" ball fit, a 21,000 lb rating, 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 smart choice for utility, equipment, and marine-exposed applications.
R&P Service Insight
Adjustable channel couplers matter when you want a stronger, more level trailer setup without guessing on coupler height.
- Dial In Height: The channel mount gives you flexibility to better match trailer and tow vehicle alignment.
- Hook Up With Confidence: Demco’s eZ-Latch system is built for simple connection and dependable ball engagement.
- Built for Exposure: The powder-coated steel body and 500-hour salt spray rating help it hold up in hard-working environments.
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, hitch ball size, coupler rating, lock pin clearance, and required mounting hardware before ordering. This is a coupler-only listing.
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.
- Pin Lock 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
Made in the USA for heavy-duty trailer coupling applications where strength and reliability matter.
Adjustable Channel Flexibility
Lets you set coupler height to better match trailer geometry and tow vehicle setup.
eZ-Latch Security
Designed for secure ball engagement, easier hookup, and more confident day-to-day towing use.
Corrosion-Resistant Construction
Powder-coated steel construction with a 500-hour salt spray rating for durability 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 |
