advanced technology for brazing and welding,then make sure the best heat-sinking capability Apply to:Volvo WG Series Material:All aluminum SPI# 4401-4601,2116 OEM# 817138, 817144, 1030124, 1030156, 8180873 Core: 870*673*52 Inlet:4 Outlet: 4 charge air cooler track, heavy duty