At a Glance
- SKU: DM14040-81

Demco cast ball coupler for trailers using a 3" channel bracket and a 2-5/16" hitch ball. The composite eZ-Latch provides fast, secure hookup and disconnect, while the black powder coat finish helps resist corrosion in demanding towing environments.
Compatibility: Fits a 3" wide adjustable channel bracket and couples to a 2-5/16" hitch ball.
Vehicle / System Fit: Trailer applications requiring a channel-mounted coupler rated up to 21,000 lbs GTW.
Installation Notes: Channel bracket and mounting hardware are sold separately. Minimum span needed for a pin lock is 3".
Performance Insight: The cast steel body, composite latch handle, and 500-hour salt spray rated powder coat finish make this coupler a strong choice where repeated hookup cycles and exposure resistance matter.
Channel-mount couplers like this are often selected when trailer tongue height needs to be adjusted for level towing. The eZ-Latch design also helps speed up hookup by allowing the coupler to drop onto the ball and latch automatically.
| Specification | Detail |
| Type | Coupler Only / Cast Ball Coupler / Auto Latch |
| Application | Trailer coupler for 3" channel bracket applications |
| Fitment | 3" wide channel bracket; 2-5/16" hitch ball |
| Material / Finish | Steel with black powder coat finish; composite polymer-nylon-resin latch handle |
| Key Measurement | 8-1/8" long x 2-7/8" wide coupler body; 5/16" lock pin hole; 3" minimum span for pin lock |
| Part Number | DM14040-81 |
| Category | Details |
| Vehicle / System | Trailer tongue / channel-mount coupler system |
| Axle / Capacity | 21,000 lbs GTW rated application |
| Notes | Channel bracket and mounting hardware sold separately; SAE J684 certified; made in the USA |
| Quantity | Item |
| 1 | Demco cast auto-latch ball coupler only |
Verify all specifications, measurements, and compatibility before installation.

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.
Need help with this part? Send photos, part numbers, and measurements. We’ll help you narrow it down.