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Radiator Cap

200 products found
How does a radiator cap work?

A car radiator works like a heat exchanger. The heat from the engine is released into the air via the coolant fluid. The coolant fluid, like all fluids, expands when heating up though. When expanding, coolant fluid becomes highly pressurised. This pressure increases even more when the coolant flows into the radiator. The radiator cap works in fact as a release valve, which opens once the maximum pressure point is reached.

When the radiator cap opens, the coolant flows into the overflow tanks on either side of the radiator. When the radiator cools down, for example when you switch off your engine, the coolant gets sucked back into the pump.
Radiator Cap
NPS - Ref: M155A04
NPS
Radiator Cap NPS - M155A04
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  • Outer Diameter [mm] 46,0
  • Specification 1.1 bar
Radiator Cap
BLUE PRINT - Ref: ADA109904
BLUE PRINT
Radiator Cap BLUE PRINT - ADA109904
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  • Opening Pressure [bar] 1,1
  • Weight [kg] 0,094
Radiator Cap
VERNET - Ref: RC0050
VERNET
Radiator Cap VERNET - RC0050
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  • Pressure [bar] 0,9
Radiator Cap
QUINTON HAZELL - Ref: FC52
QUINTON HAZELL
Radiator Cap QUINTON HAZELL - FC52
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  • Opening Pressure [bar] 0,9
  • Mounting Type Bayonet
  • Material Metal
  • Diameter [mm] 57,0
Radiator Cap
QUINTON HAZELL - Ref: FC526
QUINTON HAZELL
Radiator Cap QUINTON HAZELL - FC526
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  • Opening Pressure [bar] 1,4
  • Mounting Type Bolted
  • Material Plastic
Radiator Cap
GATES - Ref: RC117
GATES
Radiator Cap GATES - RC117
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Radiator Cap
GATES - Ref: RC111
GATES
Radiator Cap GATES - RC111
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  • Pressure [bar] 0,7
  • Outer Diameter [mm] 59
  • Height [mm] 24
  • Pressure [psi] 10
Radiator Cap
MAXGEAR - Ref: 28-0222
MAXGEAR
Radiator Cap MAXGEAR - 28-0222
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  • Shifting Points [bar] 1,4
  • Weight [kg] 0,05
Radiator Cap
GATES - Ref: RC113
GATES
Radiator Cap GATES - RC113
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  • Pressure [bar] 1,0
  • Outer Diameter [mm] 59
  • Height [mm] 24
  • Pressure [psi] 15
Radiator Cap
QUINTON HAZELL - Ref: FC55
QUINTON HAZELL
Radiator Cap QUINTON HAZELL - FC55
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  • Opening Pressure [bar] 0,9
  • Mounting Type Bayonet
  • Material Metal
  • Diameter [mm] 57,0
  • Height [mm] 25,0
Radiator Cap
VERNET - Ref: RC0059
VERNET
Radiator Cap VERNET - RC0059
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  • Pressure [bar] 0,9
Radiator Cap
VERNET - Ref: RC0061
VERNET
Radiator Cap VERNET - RC0061
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  • Pressure [bar] 1
Radiator Cap (1)
QUINTON HAZELL - Ref: FC503
QUINTON HAZELL
Radiator Cap QUINTON HAZELL - FC503
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  • Opening Pressure [bar] 2,0
  • Mounting Type Bolted
  • Material Plastic
Radiator Cap
BLUE PRINT - Ref: ADM59908
BLUE PRINT
Radiator Cap BLUE PRINT - ADM59908
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  • Opening Pressure [bar] 1,45
  • Weight [kg] 0,050
Radiator Cap
QUINTON HAZELL - Ref: FC68
QUINTON HAZELL
Radiator Cap QUINTON HAZELL - FC68
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  • Opening Pressure [bar] 1,0
  • Mounting Type Bayonet
  • Material Metal
  • Diameter [mm] 43,0
  • Height [mm] 12,0
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