Water Pump

Key Components:

• Cast Aluminum/Composite Housing: Withstands 15-30 psi system pressure

• Ceramic Mechanical Seal: Prevents coolant leaks (100,000+ mile lifespan)

• Precision Bearings: Support 3,000-6,000 RPM operation

Critical Functions:

1. Thermal Regulation: Distributes heat evenly

2. Hot Spot Prevention: Eliminates localized boiling

3. Heater Core Supply: Provides cabin warmth

Technical Specifications:

• Flow rate: 30-120 L/min at operating temp

• Shaft play: <0.1mm tolerance

• Bearing load: 500+ lbs radial force capacity

Common failure symptoms include:

• Bearing noise (early warning)

• Coolant leakage at weep hole

• Impeller erosion/cavitation

Modern designs feature:

• Electronically-controlled variable flow

• Maintenance-free sealed bearings

• Lightweight composite impellers

This crucial component typically outlasts 150,000+ miles while preventing catastrophic engine overheating.