Parts for your 2002 Daihatsu Yrv-Radiator hose

Radiator hose for the 2002 Daihatsu YRV

Yes, a radiator hose is very much relevant to the 2002 Daihatsu YRV. Technical sources including the Daihatsu YRV factory workshop manual (M201G/M211G, Cooling System section) and the Daihatsu Electronic Parts Catalogue list both upper and lower radiator hoses for the model, covering the 1.3-litre K3-VE and K3-VET turbo variants. These references show the hoses as core components carrying coolant between the engine and radiator.

On a 2002 YRV, the radiator hoses do a simple but crucial job: they move hot coolant from the engine to the radiator to be cooled, then back again to keep temperatures in the sweet spot. When a hose gets tired, split, or soft, the engine can overheat under the bonnet in no time—which can lead to head gasket dramas and a much bigger bill than a couple of hoses and clamps.

As part of regular servicing, radiator hoses on the YRV should be inspected every service interval. Under Aussie and Kiwi conditions, a good rule of thumb is to replace ageing hoses around 5–7 years or 100,000–120,000 kilometres, or sooner if there are signs of wear. The turbo K3‑VET places a bit more thermal load in the bay, so being proactive is smart.

• Check for soft spots, swelling near the ends, cracks, glazing, or coolant crust around clamps.
• Squeeze the hose when cold, it should feel firm, not mushy or brittle.
• Watch for the lower hose collapsing at higher revs—a sign the hose has weakened or the internal spring (if fitted) is gone.
• Always replace spring or worn worm-drive clamps when fitting new hoses.

When replacing hoses on a YRV, let the engine cool fully, drain the coolant into a suitable container, and remove the old clamps and hoses with care to avoid damaging alloy stubs. Lightly clean the necks, fit the new moulded hoses in the correct orientation, and position clamps behind the bead. Refill with the correct, manufacturer‑specified coolant mix, run the heater on hot, and bleed air out while bringing the engine up to temperature. Top up the radiator and overflow bottle once it cools again.

Genuine or high‑quality moulded hoses are best for fit and longevity. Universal flex hoses can get you out of trouble but aren’t ideal long term. Matching hoses to the YRV by VIN helps ensure the right shapes for both non‑turbo and turbo layouts.

Popular questions

1) How often should radiator hoses be replaced on a 2002 Daihatsu YRV?
Most owners are well served replacing hoses every 5–7 years or around 100,000–120,000 km, with inspections at each service. Harsh heat, towing, or lots of city stop‑start can justify earlier replacement. If there’s any swelling, cracking, soft spots, or coolant seepage, do them straight away.

2) Are turbo and non‑turbo YRV radiator hoses the same?
Functionally, yes—they route coolant between the engine and radiator—but shapes and lengths can differ. The K3‑VET turbo layout may use differently moulded hoses. Always order by VIN or engine code to get the correct fit for your YRV.

3) Can universal flex hose be used on a YRV?
It can work as a temporary solution if the diameter suits, but a proper moulded hose will fit better, avoid kinks, and last longer. If a universal hose is used in a pinch, plan to swap it for the correct moulded part and refresh the clamps soon after.