Heavy Duty Trailer Hitch Lock for Semi Trucks

Yuefong’s trailer lock offers robust security with an adaptable design. It features a 130dB alarm and low power consumption for reliable protection.

130dB AlarmDurable AlloyOEM/ODM ReadyKey Unlock

Leading Source Factory. Global Certified Excellence.

20+ Years Experience | 50+ Production Lines | 100% Quality Inspection

From ISO to Fire-proof certifications, our facility is engineered for precision. Yuefong Lock offers the ultimate OEM & ODM partnership, delivering factory-direct professional support for security professionals worldwide.

Overview

With over two decades of experience, Yuefong is a professional lock manufacturer boasting strong R&D and production capabilities to deliver exceptional OEM and ODM solutions for your smart trailer lock needs.

This highly adaptable 5th wheel lock is engineered to be compatible with multiple trailer couplers and features a multi-position adjustable design for a perfect fit.

Built with a robust alloy steel structure, our durable anti-theft trailer lock provides outstanding resistance against tampering and forced entry.

Security is further enhanced by an intelligent built-in microchip, allowing this trailer coupler lock to trigger an ear-piercing 130dB alarm to scare off intruders.

Combining an easy installation process with low power consumption for extended standby time, this heavy-duty trailer lock offers reliable and hassle-free towing protection.

At a Glance

  • Compatible with multiple trailer couplers
  • 130dB alarm for enhanced security
  • Constructed from durable aluminum alloy
  • Easy installation & low power consumption
  • Applicable for various trailers

Specifications

SpecificationDetail
MaterialAluminum Alloy
Unlocking ModeKey
ColorGray
Shackle Diameter13mm
Tensile StrengthGrade 3
Power Supply6 pcs LR44 button batteries
Total Height138.5mm
Total Width152mm
Base Height40mm
Applicable occasionsFlat-bed cargo trailers, recreational vehicles, engineering equipment trailers, yachts, speedboat trailers, etc.

Factory Video

Product Details

Heavy Duty Trailer Hitch Lock for Semi TrucksHeavy Duty Trailer Hitch Lock for Semi TrucksHeavy Duty Trailer Hitch Lock for Semi TrucksHeavy Duty Trailer Hitch Lock for Semi Trucks

Manufacturer Advantage

Zhongshan Yue-fong Mai’s Manufacture Co., Ltd. — a true source factory for B2B smart locks and high-security padlocks (not a trading company).

70,000㎡
Production complex, 600+ staff
10M+/yr
Annual output capacity
±0.02mm
In-house master mold precision
120–240h
Salt-spray tested (ASTM B117 / ISO 9227)
OEM / ODM / JDM
CAD blueprints in 3–5 days
CE / FCC
Compliance — certificates on request

FAQ

What material is the lock made of?

The lock is made from a durable aluminum alloy, offering robust resistance against tampering.

What is the unlocking method for the lock?

The lock utilizes a key-based unlocking method, ensuring secure access.

How is the lock powered?

The lock is powered by 6 LR44 button batteries, providing extended operation time with low power consumption.

Can Yuefong provide OEM/ODM services for this lock?

Yes, Yuefong offers comprehensive OEM and ODM solutions tailored to your security lock needs.

What are the applicable certifications for this lock?

Yuefong ensures all manufacturing meets high industry standards; specific certifications can be provided upon request during procurement.

Customer Reviews

Honestly, the scale of this place is insane. I visited their 'Garden Factory' in Zhongshan last year and seeing those high-speed die-casting machines in action convinced me. We’ve moved our entire 200k-unit padlock order here. They just don't miss a deadline.
S. Henderso
Head of Procurement
Total lifesaver! We needed a specific Tuya firmware tweak for our glass door lock series. Most vendors said 'impossible,' but Yuefong’s R&D team handled it like pros. It’s clear they own the full manufacturing chain—not just assembling parts from someone else.
Luca T.
IoT Solutions Architect
In 20+ years of hardware sourcing, I prioritize a factory’s internal QA standards. Yuefonglock’s 120-hour salt spray testing and C-level cylinder precision are top-tier. For anyone looking for a reliable manufacturing partner in China, this is the gold standard.
Hans G.
Security Hardware Consultant

Where Excellence Grows

Step inside our 70,000㎡ Garden Factory, where 23 years of heritage meets modern smart manufacturing.

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