530478 - Water Pump Casing -
$146.00
$339.30
Filler Plug sealing the fill and bleed point of the engine cooling system, fitted to the thermostat housing and the radiator.
This plastic plug closes the top-up and bleed port and maintains cooling system integrity under operating pressure on Tdi and V8 applications. It is sealed by O-ring ESR4685, which should be renewed each time the plug is removed.
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