Product review (5 stars): Be careful when ordering
I could rate this with one star or five stars.
I love the idea of ordering cartridges for older model ranges.  Ours is a 2003 Jenn Air model number JES9860AAS.  I was afraid we would have to get a new range, but with some new parts for our grill, the vent system, and the radiant cartridge, it's like new.
However, be very careful when you order this cartridge. Although the product description said it would fit our model, it did not and I had to return it and order directly from Whirlpool parts for $100 more.  The cartridge our model requires is JEA8120ADB13.  It is not available at this time on Amazon.
I am giving it five stars because I really appreciate the fact that older model ranges can be updated with the correct cartridges.