1 X Aluminum Shroud. For Chevrolet Blazer S10 Truck Pickup 4.3L V6 Engine 86-05. For GMC Jimmy Envoy GMC Sonoma 4.3L V6 Engine 96-04. The fan shroud basically houses the fan blades securing it in place and keeping it from damaging the other engine components that may disturb the smooth and even operation of the engine.
