Motorcraft PW423 is an engine water pump assembly for modular Ford 4.6 engine service, built as an OEM-style replacement to restore coolant circulation and help keep operating temperatures under control. It is engineered for direct-fit installation where the application is verified by VIN, engine, and OE cross-reference, making it a practical choice for technicians and DIY owners replacing a worn or leaking pump.

Motorcraft PW423 Water Pump Features:

• Coolant reservoir design helps manage normal cold-start weepage by keeping it contained and out of sight.
• Nickel-zinc-coated press tubes support a secure housing connection and add corrosion resistance at the tube interface.
• Powdered-metallic hub mating surfaces promote accurate alignment without requiring machining during production.
• Precision bearings with ground shafts are used to support smooth shaft rotation in cooling system service.
• Durability tested to a 10-year or 150,000-mile lifetime equivalent under Motorcraft validation standards.
• Cross-referenced with OE numbers 3L3Z8501CA and 5L3Z-8501-AC for application verification.