At a Glance
- SKU: DM15791-97-KIT
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.
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.
Adjustable channel couplers matter when you want a stronger, more level trailer setup without guessing on coupler height.
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.
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.
Made in the USA for heavy-duty trailer coupling applications where strength and reliability matter.
Lets you set coupler height to better match trailer geometry and tow vehicle setup.
Designed for secure ball engagement, easier hookup, and more confident day-to-day towing use.
Powder-coated steel construction with a 500-hour salt spray rating for durability in harsher environments.
| 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" |
| 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. |
| Quantity | Item |
|---|---|
| 1 | Demco Coupler (DM15791-97) |
| Not Included | Mounting bolts, lock nuts, washers, and other installation hardware |
Selected products are added together. Review the cart and verify kit contents to prevent duplicates. Prices and discounts are determined at checkout.
Have your SKU or manufacturer part number, photos of the original part and mounting, and any critical measurements ready. Capacity, voltage, or bolt pattern can help too.
815-357-3292 · 270 E Jackson St · Seneca, IL 61360
Customer feedback summarized from Google and Yellow Pages. Dates are shown where available.
Ordered trailer repair parts repeatedly; praised fast service, careful packing, and accurate orders.
Found the correct RV keys at a good price with free shipping; the keys worked as expected.
Needed an unusual axle and leaf-spring size; the team listened and helped him sort out the fit.
Praised the OEM and aftermarket selection, discounts, quick shipping, and friendly parts staff.
Got the axle he needed right away, set up with a custom spring perch.
Praised the polite staff and quality welding on a project.
Replacement struts brought a long-used door back to working order.
Had a trailer built to his needs at a fair price, then found parts for two other trailers in stock.
Praised the customer service after working with R&P over several years.
Found the gas shock he wanted at a good price with shipping included.
Received swivel D-rings with backing plates and praised the price, correct order, and service.
The right parts arrived the first time, with fast delivery and helpful staff.
Said project advice and prompt shipping helped finish a trailer project.
Reported helpful service and fast shipment to Germany.
Praised a suspension kit, fair pricing, and good parts.
Was pleased with a replacement trailer cord.
Noted dependable service and products across repeat visits.
Said the axle installation fit perfectly and thanked Josh and the crew.
Praised the crew’s professionalism during a difficult hitch replacement.
Liked the product, price, communication, and shipping.
Said the product description explained what would work for the trailer.
Received the item as described with very fast shipping and plans to return.
Praised accurate description, quick shipping, and clear communication.
Was happy with the product and its price.
Called it a pleasure doing business with R&P.
Was pleased with product quality, quick delivery, and an easy installation.
Was enthusiastic about the products.
Was ready to install the product on every trailer they own.
Expected to buy again after a good experience.
Reported that the newly installed parts were working perfectly.
Said things went well, as they had on previous visits.
Praised clear communication and fair value.
Said the transaction went as expected.
Noted good value, careful packing, and fast shipping.
Found the team professional and easy to work with.
Praised fast shipping and good communication.
Shared appreciation for the owners and their company.
Reported prompt shipping and said they would buy again.
Found R&P easy to deal with.
Praised the people and the service.
Reported a good fit, fair price, accurate listing, and quick shipping.
Received the order a day early and recommended the seller.
Described a no-hassle, professional custom-trailer purchase.
Praised a new trailer, custom additions, helpful staff, and clear pricing.
Found the right hub covers quickly and got helpful maintenance advice.
Said R&P helped their company get back on the road after an axle problem.
Was happy with a dump-trailer purchase after comparing options.
Received clear help choosing brake assemblies and bearing seals, followed by fast shipping.
Found a good deal on a 16-foot dump trailer and planned to return.
Thanked the staff for their patience and recommended the shop.
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