Performance Water Pump Kit for Chevrolet Silverado 1500 (2007-2013) 4.8L 5.3L 6.0L 6.2L

Heavy-Duty Water Pump Kit for 2007-2013 Chevrolet Silverado 1500 (GMT900)

What it Does: The Performance Water Pump Kit maintains uniform coolant flow across the engine block and radiator on the 2007-2013 Chevrolet Silverado 1500 to stabilize operating temperatures under sustained loads.

The Stock Chevrolet Silverado 1500 Cooling Vulnerability

Factory cooling systems on high-mileage GMT900 trucks powered by Gen IV Vortec engines frequently suffer from shaft seal degradation and internal bearing failure. Extended thermal cycling hardens the factory mechanical seals, resulting in coolant weeping from the lower weep hole, dry shaft friction, and bearing play. Over time, cavitation from stamped-steel impellers reduces flow efficiency, leading to hot spots in the rear cylinder heads and thermal throttling during heavy towing or hot idle conditions.

The Engineering Solution

This direct-fit water pump assembly utilizes a heavy-duty, heat-treated internal bearing coupled with an upgraded elastomeric mechanical seal to resist high-pressure fluid blow-by. The high-flow impeller profile delivers maximum hydraulic efficiency and eliminates cavitation across high-RPM operation. Cast from premium aluminum with precision-machined mating surfaces, this kit directly replaces OEM references 12681417, 12600767, and AW6009, restoring thermal stability and reliable block cooling.

What's Included

• 1 Engine Water Pump
• 1 Thermostat Housing
• 1 Thermostat
• 2 Rectangular Gaskets
• 1 Oval Gasket
• 2 Mounting Bolts

Technical Specifications

Compatibility

• 2007-2013 Chevrolet Silverado 1500 (4.8L, 5.3L, 6.0L, 6.2L V8)
• 2007 Chevrolet Silverado 1500 Classic (4.8L, 5.3L, 6.0L V8)

Frequently Asked Questions & Fitment Warnings

Does this fit the GMT900 Silverado 1500?

Yes, this is a direct fit for the 2007-2013 Chevrolet Silverado 1500 equipped with the Gen IV Vortec V8 engines, as well as the 2007 Classic edition.

Do I need to bleed the cooling system after installing this pump?

Yes, proper vacuum filling or manual air burping through the steam vent ports is necessary to prevent trapped air pockets from causing localized overheating.

The Chevrolet Durability Standard

Engineered to handle severe fleet duty and heavy payload towing, this cooling assembly ensures your truck maintains rock-solid thermal control under continuous operating strain.