Vehicle Fitment:For 85 86 GMC C2500 C3500 K1500 K2500For CHEVY C/K SERIES C10/C20/K10 PICKUP 73-80For 73-87 Chevy Truck,73-91 Blazer (19 x 28-1/4 Core)For 81-90 GM TruckFor 85 86 87 Chevy Pickup Truck 19 CoreFor 1981-1990 Chevy V SeriesFor 1981-1990 Chevy BlazerFor 1981-1990 Chevy K SeriesFor 1973-1987 Chevy C/K Series 19 TALLFor Chevy Custom Deluxe Truck & SuburbanFor 1983-1985 GMC C/K TrucksFor GMC K2500 79-84For Chevy Suburban 87-91For 73 74 75 76 77 78 79 GMC C25 C2500 C35For 1973-1991 Chevy Blazer / JimmyFor GMC C3500 79-84For Chevy Silverado Truck, Blazer & SuburbanFor 73-90 Chevy Truck C30Fan Size:Diameter: 12'' (Blade to Blade)Voltage: DC 12 VoltsFan Thickness: 2.5 Number of Blades: 10 S-Type bladesMaximum Fan CFM (Cubic Feet per Minute): 2150cfmMaximum Fan RPM(Revolution(s) Per Minute): 2000±10%S-Type Blade pull push design, to make air flow more efficient and bring more cooling EffectThermostat Kit:Universal fit for any automotive vehicle and electric fan.Activates by grounding electric fans at preset temperature.180'F turn-on temperature, 165'F turn-off temperature.Relay RED to BATTERYWHITE to IGNITION POWERBLUE to the FANSBLACK to the TEMP SENSORThis set up will run Fans & pull air in through radiator. Fits radiator Core Size: 19 high x 28-1/4 wide; Overall Size: 20-1/4 high x 33-1/4 wide Package Include: 1 X AA5052 aluminum shroud, 2 X 12 fans (includes mounting kits), 1 X thermostat relay kit Aluminum alloy-shroud design with durable, tig-welded construction Shroud fan provides protection and extra heat heat dissipation for the radiator We will provide 12 months after-sales service for the product; Please feel free to contact us if you have any questions Brand TSMINDUSTRY Exterior Metallic Finish Item Weight 10.56 pounds Manufacturer TSMINDUSTRY Manufacturer Part Number ‎TSMINDUSTRY-0012