Image 1 of 1 Additel 960-MK Maintenance Kit for ADT960A Generator $129.00 Add To Cart Added! Maintenance kit for ADT960A Generator.Factory maintenance kit with genuine Additel service parts. Maintenance kit for ADT960A Generator.Factory maintenance kit with genuine Additel service parts. You Might Also Like Additel 9082 - HART 250 ohm resistor adapter for ADT227 and ADT226 $93.00 Additel 949-MK Maintenance Kit for ADT949 Generator $101.00 Additel ADT280 Standard Reference Resistors $2,351.00 Additel 9055-2 - USB to WiFi Module $362.00 Additel 9253 - Rubber Boot for 680 gauge $38.00