Global Parts Distributors LLC “GPD” is a US-based aftermarket brand specializing in automotive air conditioning and heat exchange components They began in 1974 originally as Auto Air of Macon and evolved into GPD to supply a broad range of A/C compressors condensers evaporators blowers fittings and other related components All GPD products are designed as direct-fit to factory specs undergo leak testing and durability checks they cater to late model cars trucks as well as heavy duty applications