Trailer Coupler / A-Frame Tongue / Weld-On
Weld-On 14,000 lb Steel A-Frame Trailer Coupler – 2-5/16" Ball
Heavy-duty weld-on A-frame trailer coupler for standard 50-degree trailer tongues using a 2-5/16" hitch ball. Raw steel coupler with lockable latch, built-in jack mount opening, and 14,000 lb gross trailer weight rating.
Part Number: CA5400 14,000 lb GTW 2-5/16" Ball Weld-On A-Frame
Key Measurements & Specs
| Specification |
Detail |
| Part Number / SKU |
CA5400 |
| Product Type |
Weld-on A-frame trailer coupler |
| Ball Size |
2-5/16" |
| Gross Trailer Weight Rating |
14,000 lb |
| Tongue Weight Rating |
2,100 lb max |
| Material / Finish |
Steel / raw steel oily finish |
| Overall Dimensions |
13-1/2" front to back; 10-3/4" wide at rear; 4-1/2" overall height |
| Weight |
Approximately 9 lb |
| Quantity Included |
1 coupler |
Fitment / Application
| Category |
Details |
| Trailer Type |
A-frame trailers with standard 50-degree tongue design |
| Mounting Style |
Weld-on installation |
| Jack Mount Opening |
Standard 2-1/4" jack mount hole |
| Jack Bolt Pattern |
Three threaded jack-mount holes for 9/16" bolts |
| Fitment Method |
Verify tongue angle, coupler width, jack opening, and hitch ball size before welding |
| Important Note |
Welding should be performed by a qualified welder. Confirm trailer GVWR and tongue configuration before installation. |
Top Features
| Feature |
Buyer Benefit |
| 14K Capacity |
Built for heavy-duty trailer applications up to 14,000 lb gross trailer weight. |
| 2-5/16" Ball Socket |
Matches common heavy-duty trailer hitch ball setups. |
| Weld-On A-Frame Design |
Designed for permanent installation on compatible 50-degree A-frame tongues. |
| Lockable Latch |
Provides a latch design that can accept a compatible coupler lock. |
| Built-In Jack Mount |
Integrated jack opening supports standard A-frame trailer jack installation. |
Overview
The CA5400 is a heavy-duty weld-on steel A-frame trailer coupler for trailers using a 2-5/16" hitch ball. It is rated for 14,000 lb gross trailer weight and 2,100 lb maximum tongue weight, making it a strong replacement choice for compatible equipment, utility, flatbed, cargo, and heavy-duty trailer builds using a standard 50-degree A-frame tongue.
R&P Service Insight
Coupler replacement is a structural trailer repair. Before cutting off or welding on a new coupler, verify the trailer tongue angle, coupler width, jack mount location, hitch ball size, and required trailer weight rating.
-
Weld Prep: Remove paint, rust, oil, and contamination from the tongue area before installation.
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Alignment: Center the coupler on the tongue and confirm jack clearance before final welding.
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Rating Match: The coupler rating should meet or exceed the trailer’s actual GVWR requirements.
R&P Knowledge Hub
Compatibility: Designed for standard 50-degree A-frame trailer tongues using a 2-5/16" hitch ball. Verify measurements before ordering.
Trailer System Fit: Commonly used on heavy-duty A-frame trailer tongues where a weld-on coupler and standard A-frame jack mount are required.
Installation Notes: This is a weld-on part. Confirm tongue geometry and jack mount alignment before welding. Do not rely on part number alone when replacing an existing coupler.
Performance Insight: A properly matched coupler keeps the trailer connection secure at the hitch ball and must be selected according to ball size, trailer rating, tongue style, and installation method.
Brand & Fitment Note
Selling Brand: Aftermarket / R&P-supplied trailer coupler
Application Reference: CA5400 is used as an application and part-number reference for this weld-on 14,000 lb A-frame coupler.
What This Means: This listing is for one aftermarket weld-on A-frame trailer coupler, not a guaranteed OEM-branded item unless specifically stated.
Before Ordering: Verify ball size, trailer tongue angle, gross trailer weight rating, tongue weight requirement, jack mount opening, and overall dimensions before installation.
R&P Repair Insight
Replace a trailer coupler when the socket, latch, or mounting area is worn, damaged, distorted, or no longer secures properly to the hitch ball. A coupler that does not latch cleanly or shows visible structural damage should not be ignored.
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Ball Fit Check: Confirm the trailer is set up for a 2-5/16" hitch ball before ordering.
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Tongue Check: Confirm the trailer uses a standard 50-degree A-frame tongue and that the rear coupler width works with the trailer frame.
-
Jack Check: Confirm the jack mount hole and three-bolt jack pattern match the jack being reused or installed.
Features
Heavy-Duty 14,000 lb Rating
Rated for 14,000 lb gross trailer weight with a 2,100 lb maximum tongue weight rating for compatible heavy-duty trailer applications.
2-5/16" Hitch Ball Fit
Designed for trailers using the common 2-5/16" heavy-duty hitch ball size.
Weld-On A-Frame Mount
Built for weld-on installation to compatible standard 50-degree A-frame trailer tongues.
Raw Steel Construction
Raw steel oily finish is suitable for weld preparation and final finishing after installation.
Lockable Latch Design
Latch style is designed to accept a compatible coupler lock for added trailer security when parked or connected.
Integrated Jack Mount Opening
Includes a standard A-frame jack mount opening with three threaded mounting holes for 9/16" bolts.
Included Components
| Quantity |
Item |
| 1 |
CA5400 weld-on steel A-frame trailer coupler for 2-5/16" hitch ball |
| Not Included |
Trailer jack, jack mounting bolts, coupler lock, hitch ball, safety chains, welding supplies, paint, and installation hardware |
Important Fitment Note: Verify trailer tongue angle, coupler dimensions, ball size, jack mount opening, jack bolt pattern, trailer GVWR, tongue weight requirement, and installation method before welding. Welding and structural trailer repairs should be performed by a qualified welder or trailer repair professional.
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