Overview
The AL‑KO Coupling Lock (Part 616950) is a heavy-duty anti-theft device designed to secure 50 mm ball couplings when your trailer is unattended. It fits most popular trailer couplings—including AL‑KO, standard pressed metal couplings, and similar styles—whether hitched or unhitched. Compact, simple, and ADR-compliant, this is a must-have for theft prevention during storage or travel stops.
✅ Key Features
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Fits most 50 mm ball couplings including AL‑KO and other standard brands
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Prevents unauthorised towing when hitched or parked
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Solid steel pin and housing for tamper resistance
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Weather-resistant zinc finish for outdoor use
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Includes 2 keys
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Compact size—easy to store in your glove box or trailer toolbox
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ADR compliant and designed for Australian trailer standards
Technical Specifications
| Specification | Detail |
|---|---|
| Part Number | 616950 |
| Compatibility | 50 mm ball couplings (standard types) |
| Lock Type | Barrel lock with key (2 supplied) |
| Material | Hardened steel with zinc plating |
| Usage | Can be fitted when hitched or unhitched |
| Compliance | ADR / AS4177.3 compatible |
Applications
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Suitable for box trailers, caravans, camper trailers, boat trailers
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Recommended for both home storage and in-transit security
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Especially useful in caravan parks, roadside stops, or urban parking areas
Shipping is calculated at checkout based on your location.