OAW Water Pump with Thermostat for GM 4.8L/5.3L/6.0L V8 — Direct-Fit with Preinstalled Gasket

This complete pump kit is built to match original-equipment fit and coolant flow for many Silverado, Sierra, Tahoe, Yukon, Suburban, Express, Escalade and related models. It arrives with the thermostat and sealing gasket installed so installation time is minimized and the cooling system components work together from the start. OAW offers a one-year warranty and a 30-day return window to give you added confidence after purchase.

Which vehicles and engines will this OAW pump fit?

The G7341B covers a broad range of GM light trucks and SUVs equipped with 4.8L, 5.3L and 6.0L V8 engines produced across model years roughly 1999–2006. Compatibility includes many passenger and commercial variants—check fitment against your VIN or OE part number before ordering.

• 6.0L V8: Escalade, Escalade EXT/ESV, Express 2500/3500, Silverado/Sierra 1500–3500, Suburban, TrailBlazer, Savana and H2 (specific years noted in product listing).
• 5.3L V8: Avalanche, Tahoe, Suburban, Envoy, Rainier, SRR, Express, Savana, and other GMC/Buick/Cadillac models listed.
• 4.8L V8: Common on Silverado, Sierra, Tahoe, Express and Savana models within the covered years.

How does this pump simplify installation and save time?

OAW ships the water pump with the thermostat and a gasket included, so you avoid sourcing multiple parts and worrying about compatibility. The pump is designed for OE-style mounting and coolant routing which reduces fitment issues and the need for modification during installation.

• Thermostat preinstalled to match factory opening temperature and reduce diagnostics.
• Included gasket reduces risk of leaks and ensures the correct seal surface.
• Direct-fit dimensions aimed at bolt-hole alignment and hose connections like the original part.

What are the main features and durability expectations?

This assembly is manufactured to meet original fit and functional characteristics rather than being a performance upgrade. Materials and machining are selected to provide reliable coolant circulation and long life under typical operating conditions when installed correctly and used with proper coolant mixture.

• OE-style impeller and housing geometry for correct flow and pressure.
• Factory-match thermostat control integrated into the unit for consistent engine warm-up and temperature regulation.
• Backed by a one-year warranty and a 30-day return policy for peace of mind.

What should I check before buying or installing this pump?

Verify engine displacement, model year range, and part interchange numbers to confirm compatibility. Inspect drive belts, hose condition, and coolant quality during replacement—addressing related wear items at the same time reduces the chance of repeat repairs.

• Match engine size (4.8L, 5.3L, 6.0L) and vehicle model/year to the listing specifics.
• Confirm clearance for accessories and belt routing before reassembly.
• Use recommended coolant type and proper mixture; bleed the cooling system per manufacturer instructions.

Who is this for? The OAW G7341B water pump assembly is intended for DIY mechanics, independent shops, and fleet managers who need a cost-effective direct-replacement for GM V8 trucks and SUVs from the 1999–2006 era. It’s ideal when you want a ready-to-install unit with the thermostat and gasket included to reduce downtime and avoid chasing multiple parts sources. If you require OE-like fitment and a straightforward replacement with a standard warranty, this kit meets those needs—just confirm vehicle compatibility before ordering.