Description:

[Vehicle Fitment]: Compatible with Chevrolet Silverado 2500 HD 2011, Silverado 3500 HD 2011-2012; Compatible with GMC Sierra 3500 HD 2011-2012 (It fits SLE, WT, SLT Models Only, VINL) --- V8 6.6L. [Attention]: fits the Model with Ambulance Package. [Reference Number]: HA-112450C, 20942518. [Restore HVAC System]: Excellent fit for your vehicle's air conditioning system, ensuring that it operates at optimal levels and restoring your car's performance to new..