Keyless 4-digit combination protection for maximum towing security. Designed for Class III/IV/V 2″ and 2-1/2″ receivers without key hassle.
Product: 5/8″ Combination Trailer Hitch Receiver Lock
Material: Carbon Steel Pin + Zinc Alloy Lock Body
Application: Class III/IV/V Hitch Receivers (2″ & 2-1/2″)
Lock Type: 4-Digit Resettable Combination Lock
Surface Finish: Black Electrophoretic Coating
OEM Available: Logo Laser Etching & Custom Packaging
MOQ: Support Bulk Wholesale
Packaging: Double Blister / Color Box / Custom
Design: Heavy-duty combination hitch lock engineered for maximum shear resistance.
Material: Combines hardened carbon steel pin with a durable zinc alloy lock body.
Mechanism: 4-digit keyless combination mechanism eliminates lost or misplaced keys.
Operation: Resettable code configuration with full-coverage rubber dust cap.
Application: Ideal for securing bike racks, ball mounts, and cargo carriers.
OEM/ODM: Full factory support for brand customization.
Model: RY-TL-06 (可按需改型号)
Material: Carbon Steel (Pin) + Zinc Alloy (Body)
Surface Finish: Corrosion-Resistant E-Coating
Pin Diameter: 5/8″ (16mm)
Usable Length: 3.5″ (89mm)
Fitment: 2″ & 2-1/2″ Receivers
Lock Mechanism: 4-Digit Resettable Dial (Keyless)
Protection: All-Weather Protective Dust Cover
Application: Class III, IV & V Hitches
OEM/ODM: Logo, Color, and Packaging Customization
Heavy-Duty Steel & Zinc Alloy
Combines a hardened carbon steel pin for anti-shear strength with a durable, weather-resistant zinc alloy lock body.
Keyless 4-Digit Combination
10,000 customizable security combinations eliminate the risk of lost or misplaced keys during travel.
Easy Reset & All-Weather Protection
Simple 90° rotation mechanism to set your own code, equipped with a protective rubber cap to block rain and road grit.

Suitable for travel trailers and camper trailers.

Ideal for securing boat trailer hitches against theft during marine transport.

Ideal for utility and equipment trailers.

Helps secure enclosed cargo trailers.
| Feature | Hitch Pin Lock | Coupler Lock |
|---|---|---|
| Protects Hitch Receiver | ✔ Yes | ❌ No |
| Prevents Hitch/Rack Theft | ✔ Yes | ❌ No |
| Best For | Active Towing & Accessories | Parked Trailers |
| Installation Location | Trailer Hitch Receiver | Trailer Coupler Socket |
Determine your hitch class (Class III, IV, or V) to ensure you need a standard 5/8" diameter pin.
Confirm the width of your receiver tube (2" or 2-1/2") to ensure 3.5" usable pin length fits.
Select 4-digit keyless combination mechanism for maximum shear resistance and theft prevention.
Ensure protective dust cap is used to keep the combination dials smooth and free from road debris.
Yes. It features a standard 5/8″ (16mm) pin diameter with 3.5″ usable span, designed specifically for Class III, IV, and V hitches with 2″ or 2-1/2″ receivers.
Yes. The lock body is finished with a black electrophoretic coating to resist corrosion, and it includes a heavy-duty rubber protective cap to shield the combination dials from rain, dirt, and mud.
Start with the default code (0-0-0-0). Turn the end reset knob 90° clockwise, set your custom 4-digit code, and turn the knob back counter-clockwise 90°. Insert the pin into the lock body and scramble the dials.
Yes. As a manufacturer, we support custom pin lengths, laser-etched brand logos, custom surface finishes, and tailored retail packaging for OEM/ODM orders.
We offer flexible Minimum Order Quantities depending on your packaging and customization requirements. Contact us directly for a quick wholesale quote.

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✅ 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