Direct fit for 73-1991 Chevy C/K 10 20 30 Pickup Blazer GMC Core size: 28 2/9"H x 18 5/6"W x 1 3/4"T; Overall size: 33 7/9"H x 20 3/5"W x 4 1/9"T; Inlet/ outlet: 1 1/2"/ 1 4/7" Trans oil cooler: ￠32×215×G1/4（Z） Direct OE replacement with drop-in precise fitment and easy installation Precision-engineered by in-house team of automotive experts, heavy-duty design withstands harsh conditions to deliver enduring quality Compatible with:
GMC K2500 1979-1984
Chevy Suburban 1987-1991
Chevy Truck C30 1973-1990
1981-1990 Chevy Blazer
1981-1990 Chevy V Series
1983-1985 GMC C/K Trucks
Chevy Blazer / Jimmy 1973-1991
Chevy Pickup Truck 1985 1986 1987
CHEVY C/K SERIES C10/C20/K10 PICKUP 1973-1980

Radiator Details:
Type: 3 Core
Core Thickness: 1 3/4"
CNC Machined Filler Neck and Cap
OEM Style Brass Petcock Drain
Transmission: Automatic and Manual
Performance: Up to 30%-45% Cooling

FAN SPEC:
Maximum Fan CFM: 2300±200
Fan Diameter X Height X Thickness:12.05" X 12.05" X 2.5"
Number of Blades: 10 blades (Plastic)
Amp Draw: 12.70 amps
Maximum Fan RPM: 2,250 rpm

Thermostat 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.
3/8" NPT thread-in brass probe included.
Probe typically threads into radiator, water outlet or manifold.

Thermostat Relay Kit Instructions：
RED + connect directly to battery.
WHITE wire to ignition switch power source.
BLACK goes to thermos switch.
BLUE wire goes to the Fans.

Package Include:
1 X 3-Row Aluminum Radiator (Includes Radiator Cap)
1 X Aluminum Shroud
2 X 12"Fan (Includes mounting kits)
1 X Thermostat Relay Kit

COOLINGBEST Radiador:
1.Shuttered design T-5052 fan shroud to guaranteed airflow passes high efficiently. Make your engine bay perfect!
2. S blade fans, Push or Pull Type design,lightweight Plastic Durable Material.
3. Additional with thermostat,professional matching advice, consider for every detail and needed.