OAW Water Pump for GM 4.8L/5.3L/6.0L V8 (1999–2006) — Direct-Replace with Gasket, OE Fit

This heavy-duty replacement water pump matches original equipment dimensions and includes the necessary gasket so you can swap it into compatible Chevrolet, GMC and related GM vehicles with confidence. Built to OE fit and function standards, the unit is intended for models including Silverado, Sierra, Tahoe, Suburban, Yukon, Escalade, Express, Envoy and several Buick/other GM variants across the listed years.

How does this pump fit my vehicle?

The pump is manufactured to original form, fit and performance specifications for direct interchange with factory units. Verify engine displacement and model year against the compatibility list to ensure a match; the gasket is included for a complete installation.

• Compatible with 6.0L, 5.3L and 4.8L V8 engines across specified years
• Direct-replacement for OE part numbers including 252-845 / 19195104
• Includes gasket to simplify installation and sealing
• Designed for factory mounting points and coolant passages

What are the build and warranty details?

This water pump is produced to meet original equipment tolerances and materials for reliable operation under normal driving conditions. It ships with a one-year limited warranty and a 30-day return window to protect your purchase.

• OE-quality construction for bearing and impeller durability
• 1 year warranty plus 30-day return policy
• Supplied with gasket for leak-free installation
• Corrosion-resistant finish on critical surfaces

What should I expect during installation?

Installation follows standard water-pump replacement procedures for GM V8 engines. Because this is a direct-fit replacement, no modification of mounting points is required; basic tools and coolant handling precautions are needed.

• Remove old pump, clean mating surface, install included gasket
• Torque bolts to factory specifications and refill coolant
• Inspect drive belt and thermostat while servicing cooling system
• Bleed air from system per vehicle manufacturer instructions

How will I know if my pump needs replacement?

Signs include coolant leaks at the pump weep hole or housing, overheating under load, or noisy bearing operation. Early replacement prevents potential engine damage from coolant loss or overheating, but always diagnose to confirm causes.

• Visible coolant seepage or puddles near the pump area
• High temperature readings or frequent overheating events
• Grinding, whining or rattling coming from pump region
• Steam or sweet coolant smell from engine bay

Who is this for: The OAW G7341 water pump is for DIY mechanics, professional technicians and fleet maintenance teams who need an OE-form direct replacement for GM 4.8L, 5.3L and 6.0L V8 vehicles (1999–2006). Choose this pump when you require a gasket-included, warranty-backed repair part compatible with Silverado, Sierra, Tahoe, Suburban, Yukon, Escalade, Express, Envoy, Buick Rainier and similar models on the published fitment list.