50D Trailer Coupler Lock for 2″ Trailer Couplers
Secure unattended trailers with a compact zinc alloy coupler lock designed for RV, utility and cargo trailers.
Durable Zinc Alloy Construction
Compact Internal Lock Design
Quick & Easy Installation
OEM & ODM Customization
QUICK FACTS
- Product: 50D Trailer Coupler Lock
- Material: Zinc Alloy Die Casting
- Application: RV, Utility & Cargo Trailers
- Lock Type: Internal Coupler Lock
- Surface Finish: Shot Blasted
- OEM Available: Full Design & Tooling Support
- MOQ: Support Bulk Orders & Wholesale
- Packaging: Carton / Pallet / Custom
ABOUT THIS TRAILER COUPLER LOCK
- Design: Compact internal lock engineered for 2″ trailer couplers.
- Material: Die-cast zinc alloy body built for long-term outdoor use.
- Mechanism: Expands inside the coupler cavity to prevent unauthorized coupling.
- Operation: Quick and secure locking/removal with the included hex wrench.
- Application: Ideal for securing unattended RV, utility, and cargo trailers.
- OEM/ODM: Full factory support for custom logos and private labels.
SPECIFICATIONS
- Model: 50D
- Material: Zinc Alloy (Zamak 3 Grade)
- Surface Finish: Shot Blasted
- Weight: 380g
- Height: 65mm
- Diameter: 50mm
- Keys Included: 2 Keys
- Installation Tool: Hex Wrench Included
- Application: RV, Utility & Cargo Trailers
- OEM/ODM: Available
PRODUCT DETAILS
Durable Zinc Alloy Construction
Built for long-term outdoor use with excellent corrosion resistance.
Internal Expansion Security System
Expands inside the coupler cavity to prevent unauthorized coupling.
Fast Installation & Removal
Includes hex wrench for quick locking and unlocking.
APPLICATIONS
RV Trailers
Suitable for travel trailers and camper trailers.
Boat Trailers
Can be used on compatible boat trailer couplers.
Utility Trailers
Ideal for utility and equipment trailers.
Cargo Trailers
Helps secure enclosed cargo trailers.
TRAILER COUPLER LOCK vs HITCH LOCK
| Feature | Coupler Lock (50D) | 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 |
HOW TO CHOOSE THE RIGHT TRAILER LOCK
Identify Your Trailer
Determine your specific trailer type (RV, boat, utility, or heavy cargo fleet)
Measure Coupler Size
Check your coupler socket size carefully (standard 1-7/8″, 2″, or heavy-duty 2-5/16″)
Choose Security Level
Select a high-security defense level with extreme weather and corrosion resistance.
Verify Compatibility
Ensure the lock shape fits perfectly inside the coupler socket to prevent any leverage theft.
Frequently Asked Questions
Will this lock fit all 2″ trailer couplers?
It is designed for most standard 2″ trailer couplers. Please verify the coupler cavity diameter before ordering.
Is the lock weather resistant?
Yes. The zinc alloy body provides excellent corrosion resistance for outdoor use.
Are replacement keys available?
Yes. Contact us with your key code for replacement key support.
Do you provide OEM customization?
Yes. We support custom logos, packaging, colors and private labeling.
What is the MOQ?
MOQ depends on customization requirements. Contact us for details.
It is designed for most standard 2″ trailer couplers. Please verify the coupler cavity diameter before ordering.
Yes. The zinc alloy body provides excellent corrosion resistance for outdoor use.
Yes. Contact us with your key code for replacement key support.
Yes. We support custom logos, packaging, colors and private labeling.
MOQ depends on customization requirements. Contact us for details.
OEM & ODM SERVICES
✅ Custom Logo (Laser / Silk-screen)
✅ Custom Logo (Laser / Silk-screen)
✅ Custom Colors Available
✅ Mold Development Support
✅ Private Label for Distributors
MANUFACTURING PROCESS
WHY CHOOSE RUIYU
✅ ISO9001 Certified Factory
✅ 20+ Years Die Casting Experience
✅ OEM & ODM Support
✅ Fast Production Lead Time
✅ Competitive Factory Pricing
Need a Quote for Trailer Coupler Locks?
✅ OEM & ODM Available
✅ Factory Direct Pricing
✅ Fast Delivery
✅ Global Shipping