The code "JK" is a vehicle designation assigned by Jeep. Jeep two letter designations make it easier to reference and identify parts. Because it doesn’t matter what graphics scheme the decals are, what color the Jeep is, what kind of special edition, or what kind of wheels you have. Underneath all that, is a JK.
Wrangler Models - What is a Jeep JK?
All Jeep Wranglers built from 2007 to 2017 are JKs. Whether the Wrangler has two doors, 4-doors, is a Rubicon, or Polar Edition, it doesn’t matter. If your Jeep Wrangler was made between 2007 to 2017 - you drive a JK. If you've ever asked, "What is a JKU," the "U" Stands for Unlimited, otherwise known as the 4-door model.
Knowing that you drive a JK makes it easy to order parts and accessories. It's handy knowledge to know, and it’s easy to remember. The great thing about the JK Wranglers is they all primarily look the same. When you’re at a Jeep event, you can spot a JK just by looking at the grille.
Take a good look at your own grille and familiarize yourself with it. Then when you see another Jeep, a quick glance will tell you that you just spotted another Jeeper driving a JK just like you. Instant Jeep wave!
You're probably used to walking into a parts store, and they always want to know the Year, Make, and Model. But as a Jeep owner, you've got it easy. So, what is a Jeep JK? Answer: Any Wrangler made from 2007 - 2017. Sometimes a certain year is needed to obtain certain parts, but essentially, if it's a JK, you're good to go.
Keep in mind that the Jeeps don't actually say "JK" on them. They might say Wrangler, Rubicon, etc. Although some people add the "U" to the "JK" (thus, JKU), it's not an official designation by Jeep. So there you go. What year is your Jeep Wrangler? 2007 to 2017? You have a JK, my friend. Enjoy it! Just a head's up, the late-model Wranglers coming in 2018 will be designated as JLs.