A-Premium Engine Water Pump for Chevy GMC Cadillac — 19195104 Direct Replacement, OE Fit & Corrosion-Resistant

The A-Premium Engine Water Pump 19195104 is a direct-replacement cooling pump engineered to restore proper coolant flow for many Chevrolet, GMC and compatible GM-derived vehicles from the late 1990s through mid-2000s.

This premium aftermarket water pump is built to match OE form, fit and function so you can replace a worn or leaking pump without custom modifications. It pairs corrosion-resistant materials with precision-machined surfaces to help ensure a reliable seal and consistent coolant circulation across the engine’s cooling passages. The unit is supplied with the mounting face and impeller geometry designed for popular Vortec and V8 powerplants used in full-size trucks, SUVs, vans and some commercial chassis.

Which vehicles will this water pump fit?

The A-Premium 19195104 covers a broad range of GM platforms from 1999–2006 and several related OEM variants. It fits numerous Chevrolet and GMC models plus Cadillac, Buick, Hummer, Isuzu, Saab and several commercial or specialty chassis where the referenced part numbers are specified.

• Chevrolet: Silverado 1500/2500/3500, Tahoe, Suburban, Avalanche, SSR, Trailblazer, Express vans.
• GMC: Sierra 1500/2500/3500, Yukon/Yukon XL, Envoy, Savana, and commercial W-series cab/chassis.
• Also compatible with Cadillac Escalade lines, Buick Rainier, Hummer H2, Isuzu Ascender/NPR, Saab 9-7x and various Workhorse/FasTrack models.

How does this pump match OE performance and installation needs?

This pump is manufactured to align with original mounting points, inlet/outlet placement and impeller orientation so it installs like the factory unit. Machined sealing surfaces and a corrosion-resistant housing reduce leak risk, while balanced impeller design promotes stable coolant flow and minimal vibration during operation.

• Precision-machined flange and bolt pattern for direct bolt-on replacement.
• Durable impeller and shaft assembly to minimize wear and noise.
• Materials selected to resist corrosion from mixed coolants.
• Tested for runout and bearing life comparable to OE standards.

What reference numbers and part cross-references should I check?

If you’re confirming fitment against service records or parts catalogs, use the listed cross-reference numbers to verify compatibility. The A-Premium unit corresponds to many original and aftermarket references, so matching a reference number or VIN-based lookup will help ensure correct selection.

• Common cross-references include 12456113, 12569519, 19195104 and 19256261.
• Other catalog numbers such as AW5104, MWP500 and W9409M may also point to the same replacement option.
• Always double-check vehicle year, engine code and accessory drive configuration prior to purchase.

What warranty and quality assurances are included?

A-Premium backs this water pump with a one-year unlimited-mileage guarantee to give installers confidence when replacing a cooling component. The warranty covers defects in materials and workmanship under normal installation and use; keep your proof of purchase for any warranty inquiries.

• One-year unlimited-mileage warranty from A-Premium.
• Manufactured to meet common aftermarket quality inspection benchmarks.
• Sold as a complete pump assembly for straightforward replacement.

Who is this for: This water pump is intended for DIY mechanics, independent shops and fleet technicians who need a reliable, direct-fit replacement for GM full-size trucks, SUVs, vans and select commercial chassis from the late '90s through mid-2000s. If your vehicle matches the model years or reference numbers above and you want a drop-in pump that aims to mirror factory installation and coolant flow characteristics, the A-Premium 19195104 is engineered to simplify the repair and get the cooling system back into service.