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Shopping for 1963-GMC-3500
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Water Pump

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Engine Water Pump with Gasket for 1960-1966 GMC 3500
High quality part and hard to find for a 1955 to 1963 model. Side by side with a dayco pump its identical, right down to a blue paint marking and new cast impeller . This is my 3rd A-premiem part purchase. An optispark and blower motor were also used. Both quality pieces and readily available. Pricing is 1/3 of any supplier and includes free quick shipping. The price is in Canadian funds plus tax , that's it. No extra fees or charges. I will look here from now on to order parts until I have a reason not to .
A
A-Premium®Part # APWP0133
Engine Water Pump with Gasket for 1960-1966 GMC 3500
4.912 Reviews
$73.99
Only 1 item left in stock
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2-year warranty
90 days free return
Fits GMC 3500: 1960 1961 1962 1963 1964 1965 1966
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Vehicle: 1963 GMC 3500
Specifications

What does a water pump do in a car?

The water pump in your vehicle transports coolant from the radiator to the engine and then circulates it back to the radiator, restarting the cycle. This process is essential for maintaining a consistent engine temperature, regardless of external conditions.

As the coolant flows through the engine, it absorbs heat, causing it to warm up. To prevent the engine from overheating, the water pump ensures that the heated coolant is redirected back to the radiator, where it can cool down before re-entering the engine. Without this crucial function, your engine would be at risk of overheating.

Signs of a bad water pump

Signs of a failing or bad water pump in a car include:

  • Coolant leak: Puddles of coolant under your vehicle.
  • Engine overheating: Consistent high engine temperatures.
  • Low coolant levels: Frequent need to add coolant.
  • Unusual noise: Grinding, whining, or squeaking sounds from the engine area.
  • Heater performance issues: Reduced heat output inside the car.
  • Coolant contamination: Milky substance in oil or on the oil cap.
  • Steam or smoke: Emanating from the engine compartment.
  • Check engine light: Illuminated due to irregular engine temperature.
  • Visual inspection: Corrosion, rust, or coolant residue around the water pump.
  • Coolant whirlpool: Observable swirl in the radiator when the engine is cool.