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Normal Hours

  • Monday to Friday: 7am - 10pm CST
  • Saturday: 8am - 8pm CST
  • Sunday: 8am - 10pm CST

Holiday Hours

  • Saturday Dec 24th: 8am - 6pm CST
  • Sunday Dec 25th: Closed
  • Saturday Dec 31st: 8am - 6am CST

Trimax Trailer Coupler Lock

Product Information
Our Price: $53.55 - $69.61
Shipping:
Rating:
  4.8 (6 reviews)
Choose Options
Ships Dec 6th - 7th
UMAX100 Trimax UMAX100 Trailer Coupler Lock - Solid Hardened Steel
Part # UMAX100
UMAX100 - Fits All Trailer Couplers from 1-7/8", 2", to 2-5/16"
$69.61
Add to Cart
Ships Dec 6th - 7th
UMAX50 w/ Keys Trimax UMAX50 Trailer Coupler Lock - Die Cast Corrosion Resistant
Part # UMAX50
UMAX50 - Fits All Trailer Couplers from 1-7/8", 2", to 2-5/16"
$53.55
Add to Cart
Ships Dec 6th - 7th

Features

  • Fits Many Couplers: Trimax universal dual purpose coupler locks fit all couplers from 1 7/8", 2", to 2 5/16", all coupler types. 
  • Available in 2 Models: UMAX100 which features 360 degrees of Solid Hardened Steel and UMAX50 which is made of Die Cast rugged corrosion resistant finish. 
  • Secures Trailered Vehicle: Provide instant security for your camper, boat or trailer when they are not hooked up to your vehicle.
  • Limited Lifetime Warranty:
  • Easy Installation: Slide ball up into coupler and replace u-shackle. 
  • 1/2 turn technology that cannot be false locked.
  • Key hole cover that slides up to seal out dirt and grime.  
  • Huge 6 tooth, 3/8" dual ratchet locking system
  • Attractive ballistic grade nylon housing absorbs hammer blows and protects against weather. 
  • Type A key which is a spring loaded, 7 pin, high security key. Resists attempted drill outs.  Rugged and durable, the key will not bend or break.
  • For dual force security add a TRIMAX chain or cable secured to an anchor point!  Also, add a TRIMAX coupler lever lock for additional protection.

Description

Trimax universal dual purpose coupler locks fit all couplers from 1 7/8", 2", to 2 5/16", all coupler types. Available in 2 models. UMAX100 which features 360 degrees of Solid Hardened Steel and UMAX50 which is made of Die Cast rugged corrosion resistant finish. Both provide instant security for your camper, boat or trailer when they are not hooked up to your vehicle. Features 1/2 turn technology that cannot be false locked. Easy Installation. Slide ball up into coupler and replace u-shackle. One size fits all (from 1 7/8", 2", to 2 5/16", all coupler types). Featuring hey hole cover that slides up to seal out dirt and grime. An attractive ballistic grade nylon housing absorbs hammer blows and protects against weather. Plus a Type A key which is a spring loaded, 7 pin, high security key. Resists attempted drill outs. Rugged and durable, the key will not bend or break.

View Available Part Numbers For This Product Line

Specifications

Fits all of the following couplers and more...

1 7/8" or 2" Fulton
Atwood 2"
UFP
Bulldog
2 5/16" couplers
Fulton Heavy Duty
Surge Brake (Reverse Mount)

  • One size fits all (from 1 7/8", 2", to 2 5/16", all coupler types)
  • Key hole cover slides up to seal out dirt and grime
  • Attractive ballistic grade nylon housing absorbs hammer blows and protects against weather
  • Type A key which is a spring loaded, 7 pin, high security key. Resists attempted drill outs. Rugged and durable, the key will not bend or break.
Specifications:
  • LIFETIME WARRANTY
  • Weighs 6 pounds
  • Huge 6 tooth, 3/8" dual ratchet locking system
  • Hardened 5/8" 16mm steel shackle

Additional Features

UMAX in Use UMAX in Use : TRIMAX makes the worlds toughest locks. Through value added engineering design, TRIMAX is committed to product innovation that holds up to the highest quality standards. TRIMAX provides maximum security for marine, trailer and tow, RV, performance truck, power sports and bicycle applications. Tested. Tough. TRIMAX.
Lock w/ Optional Cable Lock w/ Optional Cable : For dual force security add a TRIMAX chain or cable secured to an anchor point! Also, add a TRIMAX coupler lever lock for additional protection.
UMAX100 UMAX100 : UMAX100 which features 360 degrees of Solid Hardened Steel. Trimax universal dual purpose coupler locks fit all couplers from 1 7/8", 2", to 2 5/16", all coupler types.
UMAX50 UMAX50 : UMAX50 which is made of Die Cast rugged corrosion resistant. Trimax universal dual purpose coupler locks fit all couplers from 1 7/8", 2", to 2 5/16", all coupler types.

Limited Lifetime Warranty

This product is fully warranted to be free of mechanical defects for the life of the product. This warranty does not cover normal wear and tear associated with the products use. If a mechanical defect occurs, call TOLL FREE 1-866-796-8500 for instructions on how to have it replaced or repaired free of charge. This warranty is null and void if the lock was used for purposes for which it was not designed. TRIMAX / WYERS PRODUCTS GROUP IS NOT LIABLE FOR INCIDENTAL, INDIRECT, OR CONSEQUENTIAL DAMAGES. Some states do not allow the exclusion or limitation of incidental or consequential damages, so the above limitation or exclusion may not apply to you. This warranty gives you specific right, and you may also have other rights that vary from state to state.
 

Product Reviews Summary

Overall
4.8 
Appearance
4.8
Price / Value
4.7
Ease of Installation
4.8
Quality
4.7
6  Customer Reviews
5 Star
5   
4 Star
1   
3 Star
0   
2 Star
0   
1 Star
0   
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Part #: TRI-UMAX100 Posted on
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5.0
(Port St Lucie, FL)
Appearance
Price / Value
Ease of Installation
Quality
Real or perceived security?
Part #: TRI-UMAX100 Posted on
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4.5
(Deer Park, WI)
Appearance
Price / Value
Ease of Installation
Quality
This coupler lock looks strong. But there isn't a good way to test it without potentially ruining something. But it sure makes me feel that my travel trailer is more secure. And if it is stolen, at least I can tell the insurance company that I had a coupler lock on it. I like the barrel key arrangement. It is easy to use on this lock. I did order some additional spare keys from the Trimax company. They were pleasant & shipped promptly, but charged me $15.00 shipping charges for 4 keys-a bit over priced? No mention of such a high charge on their web site. Oh, well, I am bound to lose a key or 2 over the years and $15 is a cheap fix for the stress that losing a key causes. If I were to order this again, I would get this and the Trimax Twister Series 5/8" Chrome Deadbolt Hitch Pin Lock (which I also purchased from RealTruck) keyed a like.
Nice
Part #: TRI-UMAX100 Posted on
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5.0
(Spring, TX)
Appearance
Price / Value
Ease of Installation
Quality
This item works nice on my trailer
Part #: TRI-UMAX100 Posted on
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4.0
(Gypsy, WV)
Appearance
Price / Value
Ease of Installation
Quality
Looks impressive, but the top bar looks like it could be hit with a hammer and knocked off the hitch.
Part #: TRI-UMAX50 Posted on
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5.0
(New Castle, PA)
Appearance
Price / Value
Ease of Installation
Quality
great product, well bult , worth the money as for REAL TRUCK CANT GIVE THEM MOR THAN A 1 STAR, SENT ME THE WRONG PRODUCT AND WOULDENT SENT THE RIGHT PRODUCT OVERNIGHT DEL. THAY MAID THE MISTAKE AND I HAD TO WAITE 5 EXTRA DAYS TO GET THE PRODUCT, ( not happy about that ) , wont do anymore business with them.!!!!!!!!!!
Part #: TRI-UMAX100 Posted on
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5.0
(Goodyear, AZ)
Appearance
Price / Value
Ease of Installation
Quality
Well made. Easy to open and close.
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