Product review (5 stars): So far so good!  Save money this way vs. buying full assemblies for 2-3 times the cost.
A full replacement ignitor assembly for my GE range (PGS986SEM1SS) was $80, but the ignitor element itself looked exactly like this one.  I couldn't receive confirmation that it was identical and was a bit concerned that the voltage drop across the element might not match the rather precise values required for my range to open the gas valve...but i thought it was worth the gamble to save $50 vs the full replacement assembly.

The package included the element and two (adorable) porcelain wire nuts.  This is basically the replacement process for me:

a) remove front door of oven, racks, catch pan and underlying flame cover (4 1/4" screws).

b) remove screws holding ignitor

c) pull stove from wall

d) remove back cover (7-8 1/4" screws)

e) unplug ignitor

f) cut plug from ignitor, leaving 3" of lead on plug

g) go back around to front of stove, pull bad igntor out

h) pull lead sleeves from old ignitor and slide down leads of new ignitor

I) thread new ignitor leads through same hole from front of stove

j) screw new ignitor back to mount

k) go to back of range, trim new leads down so 6-7" come from hole in back of stove

l) strip 1/2" of insulation from end of lead (this is a little tough as the wires are very stiff)

m) use wire nuts splice leads

n) reassemble

o) test!

It will have a slight 'burn off' odor for the first light.

Worked great, hope it lasts for a while.  Good luck!