A connection unit for an exhaust gas heater in an exhaust gas system of a combustion engine, comprising: - an electrically conducting connection element , elongated in the direction of a connection element longitudinal axis (L), having an inner connection region for connection to a heating conductor and an outer connection region for connection to an electrical supply line, - a carrier arrangement which surrounds the connection element , - an insulating arrangement which insulates the connection element with respect to the carrier arrangement , wherein the connection element comprises, between the inner connection region and the outer connection region , an insulating arrangement support region which is held on the carrier arrangement by means of the insulating arrangement , wherein the insulating arrangement support region comprises a first holding portion which widens radially in the direction away from the inner connection region towards the outer connection region , and a second holding portion which widens radially in the direction away from the outer connection region towards the first holding portion , wherein the carrier arrangement comprises a first carrier element , which is to be fixed to an exhaust gas system , and a second carrier element , wherein the first carrier element comprises, in association with the first holding portion , a first carrying portion which widens radially in the direction towards the second carrier element , characterized in that the second carrier element comprises, in association with the second holding portion , a second carrying portion which widens radially in the direction towards the first carrier element , and in that the first support element clamps the connection element together with the second carrier element . - an electrically conducting connection element , elongated in the direction of a connection element longitudinal axis (L), having an inner connection region for connection to a heating conductor and an outer connection region for connection to an electrical supply line, - a carrier arrangement which surrounds the connection element , - an insulating arrangement which insulates the connection element with respect to the carrier arrangement , wherein the connection element comprises, between the inner connection region and the outer connection region , an insulating arrangement support region which is held on the carrier arrangement by means of the insulating arrangement , wherein the insulating arrangement support region comprises a first holding portion which widens radially in the direction away from the inner connection region towards the outer connection region , and a second holding portion which widens radially in the direction away from the outer connection region towards the first holding portion , wherein the carrier arrangement comprises a first carrier element , which is to be fixed to an exhaust gas system , and a second carrier element , wherein the first carrier element comprises, in association with the first holding portion , a first carrying portion which widens radially in the direction towards the second carrier element , characterized in that the second carrier element comprises, in association with the second holding portion , a second carrying portion which widens radially in the direction towards the first carrier element , and in that the first support element clamps the connection element together with the second carrier element . <EOS>