213961L - Sump Plug Sealing Washer -
$6.71
$8.39
Coolant Expansion Tank Cap the pressure-relief cap that seals the cooling system’s expansion (header) tank.
Rated to 15 psi, it holds the system under pressure to raise the coolant boiling point and vents through an integral relief valve when that pressure is exceeded, drawing coolant back from the overflow as the system cools. For Non-TDi engine applications.
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