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Radiator cap for automobile

Original Radiator cap catalogue

Information - Radiator cap

Radiator cap: replacement and selection

When and why it is necessary to replace radiator cap

Operational lifetime of this component is not specified by manufacturers. Necessity of radiator cap replacement occurs in case of jamming of its one or both valves. Also, a new part is installed if the sealing element loses its elasticity.

The main cause of component breakdown is engine overheating due to defectiveness of cooling system elements. Jamming of the valves often happens at soiling with emulsion. It can appear due to usage and mixing of various cooling liquid types.

Antifreeze leakage is noticeable at defect of the radiator cap. This can be noticed by specific smell and traces of liquid under the car. In some cases lack of cooling liquid in the system can lead to engine overheating, which will be indicated by the dashboard temperature gauge.

The procedure of radiator cap replacement should be performed on the cooled engine only. The component can be replaced on your own only if all the safety precautions are observed. The case is that due to high temperature of cooling liquid in the system there is a risk of burn wound during performing repair works.

How to select radiator cap

There are components of two types: with a pressure relief valve and without it. The parts with a pressure relief valve are able to dump excessive cooling system pressure. However, caps of the second type are usually cheaper.

Defect of the radiator cap can lead to breakdown of expensive car units. That is why you should give preference to parts of proven manufacturers. Durable and high-quality radiator caps can be found in the assortment of such well-known firms as Ashika, JapanParts, Nipparts, Blue print, AKS Dаsis, Triscan and others.

Consider diameter of the filler neck and valve during selection of the radiator cap. There should be working pressure value marked on the component. Pay attention that it is prohibited to install the parts, which have parameters, different from the one, noted in the car technical documentation. Otherwise there is high risk of defects appearance in the cooling system.

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Best goods: Radiator cap

METZGER 4010189 Breather Screw / -valve, radiator with seal ring
4010189
Article №: 4010189
Radiator cap METZGER 4010189
£ 1,99
incl. 20% VAT, excl. delivery costs
  • Material: Plastic
  • Supplementary Article/Info 2: with seal ring
  • Condition: New
Details
Over 100 in stock
JAPANPARTS KHC31 Radiator cap Ø: 45,3mm, 1,1bar
KH-C31
Article №: KH-C31
Pressure cap JAPANPARTS KH-C31
£ 8,99
incl. 20% VAT, excl. delivery costs
  • Diameter [mm]: 45,3
  • Height [mm]: 26
  • Pressure [bar]: 1,1
  • Condition: New
Details
Over 100 in stock
CALORSTAT by Vernet RC0040 Radiator cap 1,1bar
RC0040
Article №: RC0040
Radiator cap CALORSTAT by Vernet RC0040
£ 4,49
incl. 20% VAT, excl. delivery costs
  • Pressure [bar]: 1,1
  • Condition: New
Details
Over 100 in stock
FEBI BILSTEIN 23750 Breather Screw / -valve, radiator with seal ring
23750
Article №: 23750
Pressure cap FEBI BILSTEIN 23750
£ 1,99
incl. 20% VAT, excl. delivery costs
  • Length [mm]: 10, 17,5
  • Material: Plastic
  • Weight [kg]: 0,005
  • Supplementary Article/Info 2: with seal ring
  • External Thread Size: M10 x 1
  • Condition: New
Details
Over 100 in stock
JAPANPARTS KHC19 Radiator cap Ø: 45,5mm, 0,9bar
KH-C19
Article №: KH-C19
Radiator cap JAPANPARTS KH-C19
£ 5,99
incl. 20% VAT, excl. delivery costs
  • Diameter [mm]: 45,5
  • Height [mm]: 25,5
  • Pressure [bar]: 0,9
  • Condition: New
Details
Over 100 in stock
GATES RC124 Radiator cap Ø: 45mm, 0,9bar
RC124
Article №: RC124
Pressure cap GATES RC124
£ 6,49
incl. 20% VAT, excl. delivery costs
  • Pressure [bar]: 0,9
  • Diameter [mm]: 45
  • Height [mm]: 20
  • Pressure [psi]: 13
  • Condition: New
Details
Over 100 in stock
ASHIKA 33-0C-C19 Radiator cap Ø: 45,5mm, 0,9bar
33-0C-C19
Article №: 33-0C-C19
ASHIKA 33-0C-C19 Radiator cap
£ 2,49
incl. 20% VAT, excl. delivery costs
  • Diameter [mm]: 45,5
  • Height [mm]: 25,5
  • Pressure [bar]: 0,9
  • Condition: New
Details
Over 100 in stock
ASHIKA 33-0C-C30 Radiator cap Ø: 43,5mm, 0,9bar
33-0C-C30
Article №: 33-0C-C30
ASHIKA 33-0C-C30 Pressure cap
£ 2,49
incl. 20% VAT, excl. delivery costs
  • Diameter [mm]: 43,5
  • Height [mm]: 21
  • Pressure [bar]: 0,9
  • Condition: New
Details
Over 100 in stock
ABAKUS 018-027-001 Radiator cap Ø: 45mm, 1,1 bar
018-027-001
Article №: 018-027-001
ABAKUS 018-027-001 Radiator cap
£ 1,99
incl. 20% VAT, excl. delivery costs
  • Diameter [mm]: 45
  • Version: 1,1 bar
  • Condition: New
Details
Over 100 in stock
3RG 82214 Radiator cap 1,1bar
82214
Article №: 82214
3RG 82214 Pressure cap
£ 2,99
incl. 20% VAT, excl. delivery costs
  • Opening Pressure [bar]: 1,1
  • Height [mm]: 20
  • Pressure [bar]: 1,1
  • Condition: New
Details
Over 100 in stock
TOPRAN 501437 Breather Screw / -valve, radiator with seal ring
501 437
Article №: 501 437
TOPRAN 501 437 Radiator cap
£ 1,49
incl. 20% VAT, excl. delivery costs
  • Supplementary Article/Info 2: with seal ring
  • Material: 6
  • Thread Size: M 10 x 1
  • Length [mm]: 17,5
  • Condition: New
Details
Over 100 in stock
JAPKO 33C19 Radiator cap Ø: 45,5mm, 0,9bar
33C19
Article №: 33C19
JAPKO 33C19 Pressure cap
£ 2,49
incl. 20% VAT, excl. delivery costs
  • Diameter [mm]: 45,5
  • Height [mm]: 25,5
  • Pressure [bar]: 0,9
  • Condition: New
Details
Over 100 in stock
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Pressure cap for auto: DHL delivery Radiator cap for car: GLS delivery
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