There is a key. When you turn the key the whole base slides straight down and off.

Trimax - UMAX 100 - Trailer Lock for Hitch, Dual Force Security - Trailer Hitch Lock for 1-7/8" - 2-5/16" Couplers, All Coupler Types

Trimax - UMAX 100 - Trailer Lock for Hitch, Dual Force Security - Trailer Hitch Lock for 1-7/8" - 2-5/16" Couplers, All Coupler Types

Q: I bought this lock and needed to cut the shackle as my keys were at another job and I needed to use trailer it was on.

Who is to say that you actually have this problem, you could be looking for a method to take a trailer that does not belong to you. I will not comment--just call a locksmith and prove that you own the trailer.

Q: What is the difference between this and the umax50? does anyone know?

i kinda screwed up my locking system on the umax 50 trying to turn the key with ice in the lock. the key pulled out without it being lined up properly. im gonna buy the umax100 because it looks like its protected from the elements better. on the umax 50 all i did was drill the hole out with a titanium drill bit and gave it a few whacks with a mallet and it came right off. i am in no way an experienced theif, just watched a few youtube video because i didnt feel like paying a lock smith and I couldnt pick it on the first few tries. im sure its more of a visual deterrent, but I'm going to upgrade to this model.

Product ID: 4571657

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🔒Dual ratchet locking system

🌧️Weatherproof sealed keyhole

🛡️360° reinforced steel protection

Frequently Bought Together

Trimax UMAX100 Premium Universal Dual Purpose Coupler Lock , Black

Trimax TCL65 Wheel Chock Lock , Yellow/Red, 7.25in

MAXXHAUL 70472 Solid Rubber Heavy Duty Black Wheel Chock 2-Pack, 8" x 4" x 6"

Description

🔐 Lock in your trailer’s safety with Trimax UMAX100 — because your gear deserves elite protection.

WEATHERPROOF RELIABILITY - Sealed keyhole cover blocks dirt, dust, and moisture for all-season protection.
BUILT TO LAST GUARANTEED - Backed by a limited lifetime warranty for long-term peace of mind.
UNIVERSAL FIT ZERO HASSLE - One-size-fits-all design fits 1-7/8" to 2-5/16" couplers effortlessly.
360 DEGREE HEAVY DUTY SHIELD - Reinforced steel body resists cutting, drilling, and forced entry attempts.
UNMATCHED DUAL FORCE SECURITY - Dual ratchet locking system ensures maximum theft deterrence.

The Trimax UMAX100 Trailer Lock offers industry-leading security with a dual ratchet locking system and reinforced steel construction providing 360-degree protection. Its weatherproof sealed keyhole ensures reliable operation in all conditions, while the universal fit accommodates most standard trailer couplers. Weighing 5 pounds and backed by a limited lifetime warranty, this lock is engineered for durability and peace of mind.

Specifications

Manufacturer	Trimax Locks - Wyers Products
Brand	Trimax
Model	Trimax Locks - Wyers Products UMAX100
Item Weight	5 pounds
Product Dimensions	17 x 13 x 13 inches
Item model number	UMAX100
Is Discontinued By Manufacturer	No
Exterior	Painted
Manufacturer Part Number	UMAX100
OEM Part Number	UMAX100
Special Features	Key Lock

Have a Question? See What Others Asked

I bought this lock and needed to cut the shackle as my keys were at another job and I needed to use trailer it was on.

How does it unlock?

What is the difference between this and the umax50? does anyone know?

I need two locks keyed alike. How do I go about ordering them like this?

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