A:Answer I am answering as if you are replacing a dishwasher, you do not need anything (if running new you need the install kit, water connection, electrical outlet etc.).
The only issue was the existing dishwasher hardwired or plugged in? If the latter again nothing needed as a cord is included. If hardwired you will need to buy a cord, note the dishwasher end has a specific shape so generic will probably not work.