Listing is for 1 box, which contains 4 spark plugs.
Below are a few spark plugs interchangeable with this spark plug.
Champion RS14YC6 replacement spark plugs
Accel 526
ACDelco 3
ACDelco 41-600
ACDelco 41-601
ACDelco 41-606
ACDelco AC3
ACDelco R42CLTS6
ACDelco R42LTS6
ACDelco R43LTSE
ACDelco R43NTS6
ACDelco R44LTS6
ACDelco R44LTS6K
ACDelco R45LTS6
ACDelco R45LTS6K
Autolite 5143
Autolite 603
Autolite 604
Autolite 605
Autolite 767
Autolite 884
Beck Arnley 176-5240
Beck Arnley 176-5261
Beck Arnley 176-5268
Bosch 0242225578
Bosch 0242225623
Bosch H9DCY
Bosch HR8DCX
Bosch HR8DCY
Bosch HR91Y0
Bosch HR9DCY
Bosch HR9DCY+
Bosch HR9DPY
Bosch HR9LCX
Bosch stk 7571
Brisk GR15ZC-1
Champion RS12YC6
Champion RZN12Y5
Champion stk 13
Denso 5023
Denso 5325
Denso IT16
Denso K16R-U
Denso T16EPR-U15
Denso T16EPRU-15