Abstract: A motor vehicle air conditioner heat exchanger has two spaced apart parallel headers joined by two spaced apart parallel channel members. Flow tubes extend between the headers. A nonmetallic bracket is mounted at each of the corners. Each of the brackets has a socket that slides over one of the headers. Each of the brackets has a flange that slides over one of the channel members. The flange has a resilient tab that snaps into engagement with an edge of one of the channel members to retain the bracket.

Abstract: A universal condenser for an air conditioning system for replacing a custom built condenser. The universal condenser enables use of standardized parts resulting in less inventory requirements. The universal condenser includes a tube assembly fastener and mounting rails for supporting the condenser in an engine well. The standardized parts include a limited number of specifically designed brackets, a set of tubes, and the fastener for securing a tube to the condenser.

Abstract: A fastener for securing a tube assembly to a mating assembly in a sealing engagement includes a vertical member and two integrally formed side members each having an inwardly projecting lip for forming a vertical slot with the vertical member. The mating assembly includes an assembly mount with integrally extending side ribs for engaging the inwardly projecting lip of each side member of the fastener. The tube assembly includes a circular rib near the end of a tube which engages the back of the vertical member of the fastener when the fastener and mating assembly are engaged. An "O-Ring" seal located between the circular rib of the tube and the mating assembly mount is compressed forming a sealing engagement between the tube assembly and the mating assembly.