Buy 2018 Chevrolet Silverado 6.0L Vortec V8 CNG A/T 4WD 2500 HD WT Standard Cab Pickup Fleetside Power - OEM Chevrolet Part # 25805706

Cooler Assembly - Power Steering Fluid. Power Steering Oil Cooler.
A stand alone Cooler used to Cool the Power Steering system. Incl.Power Steering Return Hose.

Power Steering Cooler

Fits Sierra 2500 HD, Sierra 3500 HD, Silverado

6.6 LITER DIESEL. Silverado, Sierra; 6.6L.
Power Steering System Fluid Cooler - Repair or Replace
If the power steering fluid in your vehicle is burnt or dark, or if it leaks, your 2018 Chevrolet Silverado may need to have its power steering cooler replaced.