Buy 2018 Gmc Sierra 1500 SLE Extended Cab Pickup Fleetside 5.3L EcoTec3 V8 FLEX A/T RWD Hose. Clamp LITER, Radiator, Small - OEM Gmc Part # 11570388 (11516230, 11562101, 15768684)

Engine Coolant Reservoir Hose Clamp. Radiator Hose Clamp.. Clip. Engine Coolant Reservoir. Holder. Outlet. Radiator. Retainer. Included with: Lower Hose.

Radiator Hose ClampEngine Coolant Reservoir Hose Clamp

Fits Sierra 1500, Sierra 2500 HD, Sierra 3500 HD, Silverado

4.3 LITER, upper. 6.0 LITER, 35mm. 6.6 LITER DIESEL, #2. 6.6 LITER DIESEL, small, 35 dia. W/EASSIST, small.
Radiator - Repair or Replace
Typical symptoms for a failed radiator include both an overheating engine and a coolant leak. But some radiator failures can also result in burned or dark transmission fluid. If the cooling system in your 2018 GMC Sierra 1500 needs attention, contact a factory-trained GMC technician.