S5 Heavy-Duty Coupler Lock for RAM & TxTrail 2-5/16" A-Frame Couplers (LCS005D)
Product Info
S5 Heavy-Duty Coupler Lock for RAM & TxTrail 2-5/16" A-Frame Couplers
Secure your parked trailer with the S5 LCS005D heavy-duty coupler lock, purpose-built for compatible RAM, TxTrail, and equivalent 2-5/16" A-frame trailer couplers. Its custom-fit steel construction helps prevent unauthorized coupling and provides a substantial physical deterrent against trailer theft.
Built in the USA from durable 1/4" steel, this security assembly includes a premium puck lock and three keys. It is designed to accommodate compatible couplers installed on different A-frame sizes, making it a practical solution for equipment, utility, and other trailers using the specified coupler design.
Key Features
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RAM & TxTrail Fitment
Engineered for compatible 2-5/16" A-frame couplers manufactured by RAM and TxTrail, including matching generic versions.
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1/4" Steel Construction
Heavy-duty steel housing designed to provide a robust physical barrier against unauthorized trailer coupling.
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Premium Puck Lock Included
Includes the removable keyed puck-style lock and three keys at no additional component charge.
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Made in the USA
American-made trailer security equipment designed for practical, demanding applications.
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Technical Specifications
| Manufacturer | S5 Coupler Locks |
|---|---|
| Part Number | LCS005D |
| Product Type | Trailer coupler anti-theft lock |
| Compatible Coupler Brands | RAM, TxTrail, and geometrically matching generic couplers |
| Coupler Configuration | A-frame, compatible low-profile design |
| Hitch Ball Size | 2-5/16" |
| A-Frame Compatibility | All frame sizes, subject to correct coupler profile |
| Construction | 1/4" steel |
| Included Lock | Premium keyed puck lock |
| Included Keys | 3 |
| Country of Manufacture | United States |
| Supplier Application Description | 2-5/16" A-frame, 14K low-profile coupler lock |
R&P Knowledge Hub | Understanding Coupler Lock Fitment
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Identify the Coupler
Compare your trailer's A-frame coupler casting or stamped housing with the compatible RAM or TxTrail pattern. Similar hitch ball sizes do not guarantee identical body geometry.
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Frame Size vs. Coupler Shape
S5 specifies compatibility across frame sizes for the intended coupler family. This does not mean the lock fits every A-frame coupler or every trailer rated at 14,000 pounds.
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Parking Security
Install the security housing and engage the included puck lock according to manufacturer instructions whenever securing the uncoupled trailer.
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Layered Theft Deterrence
For higher-value trailers, consider combining coupler protection with secure parking, appropriate wheel security, lighting, and other theft-deterrent measures.
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Included Components
| Quantity | Component |
|---|---|
| 1 | S5 LCS005D steel coupler lock assembly |
| 1 | Premium keyed puck lock |
| 3 | Keys |
R&P Service Insight | What Does 14K Low Profile Mean?
The supplier's description identifies the target coupler as a 2-5/16" A-frame 14K low-profile design. That describes the coupler application, not a towing capacity assigned to the security lock.
The LCS005D does not alter the coupler's weight rating or the trailer's towing capacity. Verify the actual coupler manufacturer and shape before ordering, especially when the trailer uses aftermarket or replacement towing hardware.
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