The product in question is sold individually. Most parts on our website are sold in a single quantity. If it is not, the description will be marked as such, it will be referred to in the plural instead of singular and the picture will include all items included in the set.
It does not have the sear burner protector.
No this heat plate will not fit your grill. Here is a link to the parts you need - https://grillpartssearch.com/category/Parts-for-KENMORE-SEARS-14623673310-Gas-Grill.html