Top (inlet) hose should be smaller in diameter, bottom (outlet) should be larger.
That housing with the glow plugs is an auxiliary coolant heater which, I imagine, is available for colder climates. It's not on my S40 either.
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Liam...
'96 854 TDI SE, '99 V70 2.5D S, '05 C70 2.0T Collection, '05 S80 2.0T SE, '15 V70 D4 SE Lux Nav.
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