Established in Karakoy, Istanbul in 1978, Gurkaylar Inc. has become the pioneer of the replacement parts sector for heavy duty machinery. Our founder and honorary chairman, Arif Kaygusuz, started his spare parts journey in 1971 in a small parts shop; and thanks to his vision and creative techiniques for sales and distribution; Gurkaylar has become the most popular name in the spare parts industry in Turkey, especially for Caterpillar® branded machines.