Buy 2019 Subaru Impreza Spark Plug Wire. Cable Complete HT. NO.2. Spark Plug (High Tension). Spark - OEM Subaru Part # 22452AA170

#2 and #4. #2.

Fits Impreza, Legacy, Outback

Spark Plug Wire Set
Spark plug wires in your Subaru carry electricity from the distributor or ignition coil to your spark plugs. Old and failed wires can short out causing anything from hesitation and bucking to excessive interference in your radio.