A system for housing and cooling a toroidal inductor having a core and a winding, the system comprising: the toroidal inductor; a secondary housing including a coolant supply configured to provide a coolant; and an inductor housing configured to be attached to the secondary housing and having: an outer annular wall, an inner annular wall located radially inward from the outer annular wall and a third wall extending inward from the outer annular wall such that the outer annular wall, the inner annular wall and the third wall at least partially define an annular cavity configured to receive the inductor; and an attachment feature configured to couple the inductor housing to the secondary housing, wherein: the inductor is enclosed within the annular cavity and the secondary housing, the system comprises a coolant channel configured such that coolant from the coolant supply by flowing through the coolant channel flows past the annular cavity and contacts the winding of the inductor, and the outer annular wall defines a via receiving a lead of the inductor such that the lead extends through potting material and the via, the potting material being positioned between the inductor and the inner annular wall and between the inductor and the outer annular wall and reducing the likelihood of the coolant leaking through the via. the toroidal inductor; a secondary housing including a coolant supply configured to provide a coolant; and an inductor housing configured to be attached to the secondary housing and having: an outer annular wall, an inner annular wall located radially inward from the outer annular wall and a third wall extending inward from the outer annular wall such that the outer annular wall, the inner annular wall and the third wall at least partially define an annular cavity configured to receive the inductor; and an attachment feature configured to couple the inductor housing to the secondary housing, wherein: the inductor is enclosed within the annular cavity and the secondary housing, the system comprises a coolant channel configured such that coolant from the coolant supply by flowing through the coolant channel flows past the annular cavity and contacts the winding of the inductor, and the outer annular wall defines a via receiving a lead of the inductor such that the lead extends through potting material and the via, the potting material being positioned between the inductor and the inner annular wall and between the inductor and the outer annular wall and reducing the likelihood of the coolant leaking through the via. an outer annular wall, an inner annular wall located radially inward from the outer annular wall and a third wall extending inward from the outer annular wall such that the outer annular wall, the inner annular wall and the third wall at least partially define an annular cavity configured to receive the inductor; and an attachment feature configured to couple the inductor housing to the secondary housing, wherein: the inductor is enclosed within the annular cavity and the secondary housing, the system comprises a coolant channel configured such that coolant from the coolant supply by flowing through the coolant channel flows past the annular cavity and contacts the winding of the inductor, and the outer annular wall defines a via receiving a lead of the inductor such that the lead extends through potting material and the via, the potting material being positioned between the inductor and the inner annular wall and between the inductor and the outer annular wall and reducing the likelihood of the coolant leaking through the via. the inductor is enclosed within the annular cavity and the secondary housing, the system comprises a coolant channel configured such that coolant from the coolant supply by flowing through the coolant channel flows past the annular cavity and contacts the winding of the inductor, and the outer annular wall defines a via receiving a lead of the inductor such that the lead extends through potting material and the via, the potting material being positioned between the inductor and the inner annular wall and between the inductor and the outer annular wall and reducing the likelihood of the coolant leaking through the via.