Expansion tank cap for automobile

Spare: Coolant reservoir cap original

Information - Expansion tank cap

Cooling fluid reservoir cap: replacement and selection

When and why it is necessary to replace cooling fluid reservoir cap

Manufacturers do not specify exact operational lifetime for the cooling fluid reservoir cap. Replacement of the part is performed at appearance of cracks on it or at breakage. Moreover, a new cap is installed at valve jamming.

Mechanical damages of the component appear as a result of a road accident. The cause of valve jamming lies in its clogging. Particularly, this is possible, at appearance of emulsion in cooling fluid due to ingress of oil.

Presence of cap defect is indicated by leakage of working fluid from the reservoir, which is noticeable because of specific smell in the passenger compartment. Also leakages under the radiator or smoke from under the bonnet can appear.

During replacement of the cooling fluid reservoir cap you need to take into account, that it can be opened only at turned off and cooled engine.

Cooling fluid circulates under the pressure and have high temperature, that is why there is a risk to sustain a burn wound if safety precautions are not observed. It is worth remembering that untimely replacement of the part can lead to improper functioning of the cooling system, which is fraught with engine breakdown.

How to select cooling fluid reservoir cap

The items differ from one another by construction. Thus, there are caps with two valves: safety (releases high pressure) and vacuum (normalizes low pressure). Also there are parts with one valve, which performs both functions noted above.

High-quality expansion tank caps are presented in the assortment of many brands. The most famous are Metzger, AKS DASIS, Swag, Gates, Topran, Vaico.

The items diverge from one another by shape, valve diameter, height and thread size. Moreover, maximum allowed pressure is noted for the components and it depends on the type of the radiator installed.

Expansion tank cap at low cost: Top Spares

Sealing Cap, coolant tank Original VAICO Quality (VAICO, V10-0490) -20%
original Sealing Cap, coolant tank VAICO V10-0490 Article №: V10-0490
VAICO Sealing Cap, coolant tank V10-0490
£ 6,99**
£ 5,59
incl. 20% VAT, Shipping
Over 100 items in stock
  • Colour Blue
  • Pressure [bar] 1,4
  • Material Plastic
  • Weight [kg] 0,1116
  • Packaging width [cm] 11,2
  • Packaging height [cm] 12,6
  • Supplementary Info Original VAICO Quality
  • Packaging Depth [cm] 8,1
  • Condition  New
Details
Sealing Cap, coolant tank (FEBI BILSTEIN, 12205) -20%
original Sealing Cap, coolant tank FEBI BILSTEIN 12205 Article №: 12205
FEBI BILSTEIN Sealing Cap, coolant tank 12205
£ 6,49**
£ 5,19
incl. 20% VAT, Shipping
Over 100 items in stock
  • Opening Pressure [bar] 1,4
  • Weight [kg] 0,057
  • Condition  New
Details
Sealing Cap, coolant tank (CALORSTAT by Vernet, RC0008) -20%
original Sealing Cap, coolant tank CALORSTAT by Vernet RC0008 Article №: RC0008
CALORSTAT by Vernet Sealing Cap, coolant tank RC0008
£ 4,99**
£ 3,99
incl. 20% VAT, Shipping
Over 100 items in stock
  • Pressure [bar] 1,2
  • Condition  New
Details
Sealing Cap, coolant tank Manual Transmission for vehicles without air conditioning (TOPRAN, 720 173) -20%
original Sealing Cap, coolant tank TOPRAN 720 173 Article №: 720 173
TOPRAN Sealing Cap, coolant tank 720 173
£ 4,49**
£ 3,59
incl. 20% VAT, Shipping
Over 100 items in stock
  • Opening Pressure [bar] 1,4
  • Diameter [mm] 60
  • Material Plastic
  • Colour Black
  • Mounting Type Screw Connection
  • Thread Type Inner Thread
  • Condition  New
Details
Sealing Cap, coolant tank (FEBI BILSTEIN, 30533) -20%
original Sealing Cap, coolant tank FEBI BILSTEIN 30533 Article №: 30533
FEBI BILSTEIN Sealing Cap, coolant tank 30533
£ 12,99**
£ 10,39
incl. 20% VAT, Shipping
Over 100 items in stock
  • Outer thread [mm] M62 x 3,5
  • Opening Pressure [bar] 2,1
  • Weight [kg] 0,060
  • Condition  New
Details
Sealing Cap, coolant tank Drive Battery Left for vehicles without air conditioning (CALORSTAT by Vernet, RC0016) -20%
original Sealing Cap, coolant tank CALORSTAT by Vernet RC0016 Article №: RC0016
CALORSTAT by Vernet Sealing Cap, coolant tank RC0016
£ 4,99**
£ 3,99
incl. 20% VAT, Shipping
Over 100 items in stock
  • Pressure [bar] 1,4
  • Condition  New
Details
Sealing Cap, coolant tank (FEBI BILSTEIN, 37600) -20%
original Sealing Cap, coolant tank FEBI BILSTEIN 37600 Article №: 37600
FEBI BILSTEIN Sealing Cap, coolant tank 37600
£ 4,99**
£ 3,99
incl. 20% VAT, Shipping
Over 100 items in stock
  • Shifting Points [bar] 1,4
  • Mounting Type Screw Connection
  • Weight [kg] 0,04
  • Condition  New
Details
Sealing Cap, coolant tank with seal (TOPRAN, 103 451) -20%
original Sealing Cap, coolant tank TOPRAN 103 451 Article №: 103 451
TOPRAN Sealing Cap, coolant tank 103 451
£ 3,99**
£ 3,19
incl. 20% VAT, Shipping
Over 100 items in stock
  • Material GRP (Glass fibre Reinforced Plastic), PA 66 GF 30
  • Colour Blue
  • Thread Type Outer Thread
  • Mounting Type Screw Connection
  • Supplementary Article/Supplementary Info with seal
  • Condition  New
Details
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