Help Identifying Component on 1995 Ranger Speedometer/Odometer Circuit

[pandini]

My 1995 Ranger XL (regular cab) has a speedometer/odometer that stopped working. When I opened the cluster, I found the worm gear was broken (I’ve already fixed that), and a few other damaged components. I managed to identify almost all of them, but there is one component that looks like a varistor that I couldn’t identify.
Could someone help me identify it?
I’m attaching photos for reference.