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Premium die-cast aluminum lock body. Available in Red, Black, and Yellow. Universal fit for RV & cargo trailers.
Product: Universal Heavy-Duty RV Trailer Coupler Lock
Structure: Premium Die-Cast Aluminum Body + Zinc Alloy Components
Compatibility: Universal Fit for 1-7/8″, 2″, and 2-5/16″ Couplers
Application: Ideal for RV, Utility, Cargo, and Marine Trailers
Lock Type: High-Security Keyed Cylinder Lock
Surface Finish: Weather-Resistant Industrial Powder Coating
Color Options: Available in Red, Black, and Yellow
B2B Logistics: Supports Retail Carton / Pallet / Custom Packaging
Premium Material: Heavy-duty die-cast aluminum shield with a solid zinc alloy coupler ball for ultimate anti-theft protection.
Universal Fit: One lock fits all standard 1-7/8″, 2″, and 2-5/16″ trailer hitch couplers.
Slide-to-Lock: Features a heavy-duty sliding mechanism that caps the coupler latch securely, eliminating any play.
4-Step Operation: Insert the ball, slide the aluminum shield, align the core, and turn the key to lock instantly.
Direct Factory Supply: Stable lead times and full OEM/ODM branding support for global hardware distributors.
Model: Heavy-Duty RV Trailer Coupler Lock
Body Material: High-Grade Die-Cast Aluminum Alloy
Ball & Component: Premium Zinc Alloy (Zamak Grade)
Net Weight: 560g (Heavy-Duty Industrial Build)
Coupler Sizes: 1-7/8″ (48mm), 2″ (50mm), 2-5/16″ (59mm)
Lock Mechanism: Slide & Lock Core System
Keys Included: 2 Ergonomic High-Security Keys
Weather Resistance: Salt-Spray Tested Coating for Extreme Outdoor Use
Durable Aluminum Housing
Premium die-cast aluminum lock body for maximum strength and rust resistance.
Universal Secure Fit
Highly adjustable profile ensures a universal secure fit for 1-7/8″, 2″, and 2-5/16″ hitch couplers.
Fast Installation & Removal
Simplekeyed-cylinder design. Secure the lock in seconds with smooth keyed operation.
Suitable for travel trailers and camper trailers.
Can be used on compatible boat trailer couplers.
Ideal for utility and equipment trailers.
Helps secure enclosed cargo trailers.
| Feature | Coupler Lock | Hitch Lock |
|---|---|---|
| Prevents Coupling | ✔ Yes | ❌ No |
| Prevents Trailer Towing | ✔ Yes | ❌ No |
| Best For | Parked Trailers | Towing Vehicles |
| Installation Location | Inside Coupler Socket | Trailer Hitch Receiver |
Determine your specific trailer type (RV, boat, utility, or heavy cargo fleet)
Check your coupler socket size carefully (standard 1-7/8", 2", or heavy-duty 2-5/16")
Select a high-security defense level with extreme weather and corrosion resistance.
Ensure the lock shape fits perfectly over the coupler latch to eliminate play and prevent theft.
Yes, the highly adjustable sliding shield profile provides a universal secure fit for all standard 1-7/8″, 2″, and 2-5/16″ trailer couplers. Please check our external dimension chart to ensure it fits your specific coupler shape before ordering.
Yes, the premium die-cast aluminum shield and powder-coated finish offer heavy-duty resistance against rust, corrosion, and extreme outdoor weather conditions.
Each lock comes with 2 heavy-duty keys. Since each lock cylinder is uniquely keyed for maximum security, we highly recommend keeping the spare key in a safe place.
Absolutely. As a professional hardware manufacturer, we offer full OEM/ODM services, including custom logo engraving, custom packaging, and specific color coatings to fit your brand.
or our standard stock items, the MOQ is flexible. For custom OEM orders, logo engraving, or custom packaging, the MOQ typically starts from 500 to 1,000 pieces depending on your specific requirements. Please contact our sales team for a detailed quote.
✅ Custom Logo (Laser / Silk-screen)
✅ Custom Logo (Laser / Silk-screen)
✅ Custom Colors Available
✅ Mold Development Support
✅ Private Label for Distributors
✅ ISO9001 Certified Factory
✅ 20+ Years Die Casting Experience
✅ OEM & ODM Support
✅ Fast Production Lead Time
✅ Competitive Factory Pricing
✅ OEM & ODM Available
✅ Factory Direct Pricing
✅ Fast Delivery
✅ Global Shipping