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1977 BMW 320i Base Coupe
BMW Home > 1977 BMW 320i Base Coupe > Water Cooling SystemWater Pump, Thermostat & Hoses 

Water Pump, Thermostat & Hoses

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Water Pump Super Kits for E21

Is your car starting to run hot? Over time, the bearings in the water pump begin to wear, causing them to eventually fail and seize the water pump. This kit includes everything you need to replace your old tired water pump with a brand new unit. Here's what the kit includes:
  • New Water Pump and Gasket
  • New Thermostat
  • New Radiator Mounts
  • New Radiator Cap
  • New Upper and Lower Radiator Hoses
  • 12 oz. Redline Water Wetter Corrosion Treatment

Water Pumps

Is your car starting to run a little hot? Is it overheating while sitting at idle? It's possible you may need to replace your water pump. An easy way to check your water pump is to look underneath the car and check for water seepage out of the pump. This means that water is leaking past the bearing and seals, indicating the pump is on its way out. Another way to check is to squeeze and hold the upper radiator hose for a few seconds (CAUTION: the hose may be hot) while the car is running. If you feel no pressure building up, it is a sign that water is not circulating and the pump may be bad. These units are brand new, not rebuilt.
Water Pump
Water Pump  
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Note: Metal Impeller, Also use- (Qty.) (1) 11 51 1 727 977 Gasket,

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Water Pump Gaskets

If you are finding puddles of water under your car the water pump gasket may be going. Water pump gaskets assist in sealing the water pump to the engine block. These gaskets work under extreme heat and pressure. They should be inspected for drying out and leaking when inspecting the cooling system.
Water Pump Gasket

Water Pump Parts

Coolant Thermostats

Is your car's temperature too hot or cold? A coolant thermostat allows the coolant to circulate when the engine has reached a predetermined temperature. It should close when the engine is cold to allow it to warm up faster. Thermostats can fail and should be inspected for corrosion when servicing the cooling system. Thermostats come in different temperature settings for different climates.
Coolant Thermostat

Coolant Thermostat

Thermostat (71 deg. C)
Thermostat (71 deg. C)  
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Note: All clearance sales are final; no returns allowed.

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BMW Home  >  1977 BMW 320i Base Coupe > Water Cooling System  >  Water Pump, Thermostat & Hoses 

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Browse Water Pump, Thermostat & Hoses for all 3-Series E21 (1977-1983) vehicles

Page last updated: Wed 3/21/2018 01:29:04 AM
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