a second alternate embodiment 30b of the previously described elastomeric compressor mount 30 is cross sectionally illustrated in fig7 and 8 for ease in comparison features and components in the mount 30b similar to those in the mount 30 have been given identical reference numerals having the subscript 34 b 34 the mount 30b is of a two piece construction and has a cylindrical lower base portion 34b with an annular top end 36b an annular bottom end 38b and an annular vertical outer side 40b and a generally cylindrical head portion 64 with an annular top side 66 and an annular bottom side 68 projecting upwardly beyond the top side 36b of the base portion 34b is an annular central section 70 which is outwardly circumscribed by the annular groove 54b in the top end 36b of the base portion 34b a central circularly cross sectioned opening 72 axially extends between the bottom base portion end 38b and the upper end of the central section 70 an annular central section 74 of the head portion 64 projects downwardly beyond the bottom side 68 and is outwardly circumscribed by an annular groove 76 formed in the bottom side 68 of the head portion 64 a central circularly cross sectioned opening 78 axially extends between the top side 66 of the head portion 64 and the lower end of the central section 74 the central section.