UNITHUB Water Pump with Gasket for GM 3.5L/3.9L V6 (2006–2011) Direct-Replace, Durable Bearings

UNITHUB replacement water pump with gasket restores coolant circulation for GM 60° V6 engines used in many Chevrolet, Buick, Pontiac and Saturn models from 2006–2011.

This aftermarket water pump is built as a direct-replacement cooling component designed to match the fit and function of several OEM part numbers. It comes with the necessary gasket and accessories to simplify swapping the original pump, and its construction emphasizes durable materials and precision components to withstand typical engine bay heat and stress. Before installing, confirm fitment against your vehicle’s VIN, engine size (3.5L or 3.9L), and OEM cross-reference numbers.

Which vehicles and engines is this UNITHUB pump compatible with?

The pump supports GM 60° V6 high-value engines and is compatible with many late-2000s GM models. Always verify fitment by checking listed part numbers or your vehicle information.

• Chevrolet: Impala (2006–2011), Malibu (2006–2010), Monte Carlo (2006–2007), Uplander (2006–2009)
• Buick: Lucerne (2009–2011), Terraza (2006–2007)
• Pontiac: G6 (2006–2010), Montana (2006–2009)
• Saturn: Aura (2007–2008), Relay (2006–2007), Vue (2008–2010)
• Engine sizes: 3.5L and 3.9L V6 configurations

How does the pump’s construction affect performance and longevity?

UNITHUB focuses on durable materials and refined component finishes to resist heat, wear, and leakage. Improved bearings, heat-treated shafts, and precision-machined parts help the pump sustain consistent coolant flow and reduce premature failures when installed correctly.

• Die-cast housing (cast iron or aluminum) for structural strength and heat tolerance
• Precision-ground bearings and heat-treated shaft for smoother rotation
• Coated sealing surfaces to reduce corrosion and leaks
• Streamlined coolant passages to restore system flow characteristics

What comes in the package and how easy is installation?

The pump ships with a gasket and required accessories shown in the product images so you can perform a direct fit replacement. It’s intended to be a bolt-on unit matching OEM mounting points, but basic mechanical skills and the right tools are required for safe installation.

• Included: water pump, gasket, and any small mounting accessories pictured
• Direct-replace design to align with OEM mounting and pulley connections
• Recommend: inspect belts, hoses, and coolant; replace thermostat if needed during service
• Tip: verify compatibility with your VIN or OEM numbers before purchasing

Which part numbers and cross-references should I check?

Use the listed interchange numbers to match this pump with the original unit in your vehicle. These references help you confirm compatibility at parts counters or with repair manuals.

• Common cross-references: 89017757, 42586, AW6020
• Additional OEM-style numbers: 1309660, 252897, 19251026 (and related variants)
• Check your vehicle’s service manual or parts database for the exact OEM match
• When in doubt, supply your VIN to the seller or parts store for a precise fit check

Who is this for: This UNITHUB water pump is intended for DIY mechanics, independent service shops, and fleet managers seeking a cost-effective replacement for failed or aging pumps on GM 60° V6 vehicles from the 2006–2011 era. It’s suited for drivers who need a robust, tested replacement that meets or exceeds OEM performance benchmarks when installed properly; those unsure about fitment should confirm vehicle specifics before ordering.