Water pump

Part of S58 engine · about $310 to replace

What it is

Mechanical impeller pump on the front of the block, belt driven.

What it does

Circulates coolant through block, head, turbos, intercooler circuit and radiator.

How it fails

Weep hole seepage is the classic early warning; replace with the thermostat.

Material	Aluminium housing, composite impeller
Spec	~250 l/min at 6,000 rpm

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