Water Pump 45005 for 1999-2006 Chevy GMC Cadillac 4.8L 5.3L 6.0L V8 - Compatible with Silverado, Tahoe, Suburban, Sierra, Yukon, Escalade, Express, Savana — Open-Box, 41% Off

Part Numbers: 12456113, 12458935, 12569519, 12556449, 12559271, 12560380, 12562458, 12703898, 12604746, 19195104, 19256261, 31028406, 8124589350, 8888942900, 88894290, 8890174390, 8890180400, 8890181660, 88926296, 89017315, 89017439, 890174390, 89018040, 89018166, AW5104, AW5087, 45005, 1307340, MWP500, W9409M

HEAVY-DUTY CONSTRUCTION Built with a high-strength cast aluminum housing for superior heat dissipation and corrosion resistance. The robust ceramic mechanical seal is engineered to withstand the demands of high-mileage use, providing a reliable, leak-free seal and exceptional long-term durability.

OPTIMIZED FOR COOLING PERFORMANCE Features a precision-engineered impeller designed to ensure maximum coolant flow and efficient heat transfer. This critical function prevents engine overheating, maintains optimal operating temperature, and ensures the reliability of your V8 engine, especially under load or while towing.

DIRECT BOLT-ON REPLACEMENT Manufactured to strict OEM specifications for a perfect fit and hassle-free installation. This is a true bolt-on solution that aligns perfectly with your engine's mounting points and pulley system, saving you valuable time and labor costs.

RIGOROUS QUALITY ASSURANCE Every water pump undergoes stringent factory testing to ensure it meets performance, durability, and leak-proof standards. We are committed to delivering a component you can trust, backed by reliable customer support.

Protect your investment. The powerhouse 4.8L, 5.3L, and 6.0L V8 engines in your GM truck or SUV demand a cooling system that can keep up. When your water pump fails, the risk of catastrophic engine overheating is real. The Water Pump (Model: 45005) is the definitive solution, engineered for broad compatibility and unwavering reliability to keep your vehicle on the road for years to come. Precision-Engineered for a Guaranteed Fit Across the GM Platform This water pump is a direct OEM replacement, designed to seamlessly integrate into your vehicle's engine bay. It replaces a comprehensive list of original part numbers, including: 89017439, 12559271, 88994290 12456113, 12569519, 12604746 89018166, 89018040, AW5104 ...and many more. Extensive Vehicle Application: This single part number supports a massive range of vehicles, making it a versatile stock item. Key applications include: Chevrolet: Silverado 1500/2500/3500 (1999-2006), Tahoe (2000-2006), Suburban (2000-2006), Avalanche (2002-2006), Express/Savana Vans (2003-2006), Trailblazer (2006) GMC: Sierra 1500/2500/3500 (1999-2006), Yukon/XL (2000-2006), Envoy (2005-2006), Savana Vans (2003-2006) Cadillac: Escalade/ESV/EXT (2002-2006) Hummer: H2 (2003-2006) And also compatible with: Buick Rainier, Isuzu Ascender/NPR, Saab 9-7x, and Workhorse chassis. (For a 100% guaranteed fit, we always recommend verifying your vehicle's model year and engine size against your VIN.) We've ensured this is a complete solution for your repair. The pump comes as a fully assembled unit, designed for a straightforward, "bolt-on" installation without the need for modifications, getting you back on the road faster. 🔧 Professional Installation Tip: To ensure the longevity of your new water pump and the entire cooling system, we strongly recommend performing a complete coolant flush and refill with fresh, manufacturer-approved coolant. This is also the perfect time to inspect and replace the serpentine belt and tensioner if they show any signs of wear.