Can the InfiniteRule Lock for Demco eZ-Latch Trailer Couplers Be Keyed Alike?
Updated 12/01/2025 | Published 11/28/2025 >
Products Featured in This Question
Question:
Is it possible to get two, keyed alike InfiniteRule Lock for Cast Demco eZ-Latch Trailer Couplers - 2 and 2-5/16? I have two trailers with the same coupler. Thanks
asked by: Oliver S
Expert Reply:
Hey Oliver, welcome back. The InfiniteRule Lock for Cast Demco eZ-Latch Trailer Couplers item # IR66FR can not be keyed alike.
To get multiple locks keyed alike that are compatible with the Demco EZ-Latch like item # 12660-97SP, you'll need to go with our etrailer Surge Brake Coupler Lock item # e98887 for a 2-1/2" span or item # e39PR for a 2-3/4" span.
Please note that you will need to purchase the locks at the same time and select the "keyed alike" option from the drop down above where it says add to cart.
What kind of trailers do you have?
You can add this information and any other questions you have where it says Reply to Jerred H and I'll be happy to answer them.
Product Page this Question was Asked From
Demco 50-Degree A-Frame Trailer Coupler w/ Jack Hole - eZ-Latch - Primed - 2-5/16" Ball - 21K
- A-Frame Trailer Coupler
- Standard Coupler
- 50-Degree Frame
- Weld-On
- 21000 lbs GTW
- 2-5/16 Inch Ball Coupler
- Auto Latch
- 2-1/4 Inch Hole
- Standard Grade
- Demco
more information >
Featured Help Information
Instructions
Continue Researching
- Shop: Big Truck Big RV Tongue Weight Scale for Trailers - 1,000 lbs - Fixed
- Shop: Windshield Covers
- Shop: Demco 50-Degree A-Frame Trailer Coupler w/ Jack Hole - eZ-Latch - Primed - 2-5/16" Ball - 21K
- Shop: etrailer Windshield Cover for Snow - 70" Wide x 39" Tall
- Video: etrailer Trailer Coupler Latch Lock Spec Review
- Shop: etrailer Manual Sidewind Trailer Jack w/ Drill Adapter - A-Frame - 14" Lift - 2K
- Shop: Pacbrake Alpha HD Pro Air Bag Suspension Kit w/ Internal Jounce Bumpers - Rear Axle - 5,000 lbs
- Shop: Pacbrake Alpha HD Pro Air Bag Suspension Kit w/ Internal Jounce Bumpers - Rear Axle - 5,000 lbs
- Shop: Pacbrake Alpha HD Air Bag Suspension Kit - Rear Axle - 5,000 lbs
- Shop: Suspension Enhancement
- Q&A: How to Measure the Angle of Trailer A Frame To Determine if a 50 Degree A Frame Coupler will Fit
- Q&A: Can Furrion Chill Cube Thermostat Control Furnace As Well As AC?
- Q&A: Can Furrion Chill Cube RV AC Units Replace Units of Keystone Cougar MK333
- Article: The 5 Best Trailer Drop Hitches You Can Buy
- Q&A: Can I Use the Demco eZ-Latch Gooseneck Coupler on My Texas Pride Gooseneck Trailer?
- Q&A: Can I Swap My Coleman Mach Q 15 to the Furrion Chill with an Adapter, or do I Need a New Set-up?
- Q&A: Availability Of Replacement For AL-KO 5/8 Hub Assembly 568215
- Q&A: Coupler Upgrade for Fulton 44311H A-Frame Coupler
- Article: Is It Illegal to Leave My Hitch on My Truck?
- Article: How to Adjust Your Trailer Brakes | The Ultimate Guide
- Article: Trailer Wiring Diagrams
- Article: 5 Things to Know About Weight Distribution Hitches
- Article: Trailer Lighting Requirements
- Article: How to Measure for Travel Trailer and Fifth Wheel Steps



Oliver S.
12/1/2025
So the etrailer Trailer Coupler Latch Lock - 2-3/4" Span - 1/4" Diameter - Chrome Part Number: e39PR will fit the Demco 2 5/16" cast coupler, right? If so, I'll buy two of them right now! Thanks, Oliver