
The full rundownProduct details
The genuine lower radiator hose your EJ deserves — not the cheap aftermarket junk.
This hose handles the return flow from the radiator back to the engine, keeping coolant moving and temps stable under pressure.
If your original hose has gone soft or shows cracks near the clamps, it’s time for a genuine replacement before it fails.
Fits:
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Impreza WRX / STI (1998–2000)
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Liberty (1989–1997)
Compatible with: EJ20, EJ205, EJ207, EJ20D, EJ20E, EJ20G, EJ22, EJ22E, EJ25D engines.
OEM Part Number: 45167AA030
Why Genuine Subaru:
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Factory-grade rubber for long-term durability and perfect fit
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Direct replacement, no trimming or bending required
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Maintains correct coolant flow and system pressure
Roo Racing Tip:
Always replace upper and lower hoses together — one weak hose can undo a full cooling system service. Keep your EJ cool and reliable with fresh genuine parts.
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Questions we actually get
Can I return it if I've ordered the wrong thing?
Yes, within 30 days, subject to our returns policy.