Master Lock J4U00 - J4U99 Series Lock Code List
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Customer Reviews
What Our Customers Say
Honest feedback from customers who purchased from EasyKeys.
Showing 20 most recent reviews
Tim
Aug 12, 2026
“It was super easy to use!!!”
David
Aug 12, 2026
“Easy”
Delise
Aug 12, 2026
“Hey, it's easy!”
Elsie
Aug 12, 2026
“Easy to use.”
John
Aug 12, 2026
“very easy to locate needed keys”
Richard
Aug 12, 2026
“You checkout screen is awful. there is no scroll bar on the side. took me a long time to figure out to use the down arrow on my keyboard and even that was a problem. suggest you take a look at the system. ”
Danielle
Aug 12, 2026
“easy process”
Raul
Aug 12, 2026
“The website was easy to use and found my required item super fast. Thank you!”
jorge
Aug 11, 2026
“quick, fast and easy!!!”
Michelle
Aug 11, 2026
“very easy ordering experience”
Ramon
Aug 11, 2026
“ Es la primer llave de reemplazo que pido con esa compañía espero que hagan un buen trabajo les voy a dar un voto de confianza. Espero no lo vayan a cagar”
Sergei
Aug 11, 2026
“Everything went smooth
”
DAVID
Aug 11, 2026
“Very easy to order replacement keys! Thank you!”
Vanessa
Aug 11, 2026
“Very hard to find the key L005. Hopefully it the right one. I have use you guy before and it was so easy and key can right on time.”
Dena
Aug 11, 2026
“Very easy to purchase keys for filling cabinets.”
Mitchell
Aug 11, 2026
“Very convenient to have this option for getting additional keys.”
George
Aug 10, 2026
“just ordered,,, dont knopw if its right ?? or how long to get it ?,,, or if i will ?? so its a middle of the road issue now !!!! ”
Ryan
Aug 10, 2026
“Always easy to find exactly what I'm looking for”
Joseph
Aug 10, 2026
“Very easy to use. Hope the key works. ”
Lisa
Aug 10, 2026
“Quic and easy to find what I was liking fr. The button at Checkout to remove an item not easy to find. Tom 3 tries to get my order right”