Parts for your 2017 Honda Odyssey-Radiator hose

2017 Honda Odyssey radiator hose — what it does and how to look after it

A radiator hose is absolutely used on the 2017 Honda Odyssey. Technical references including the Honda Service Manual for the 2011–2017 Odyssey (Cooling System), Honda’s electronic parts catalogue (listing “Hose, Radiator Upper” and “Hose, Radiator Lower”), and major aftermarket fitment guides from brands like Gates and Dayco all identify upper and lower radiator hoses fitted to this model’s 3.5‑litre V6.

On this Odyssey, the upper hose carries hot coolant from the engine to the radiator, the lower hose returns it after it’s been cooled. Together they’re the flexible arteries of the cooling system, coping with vibration, engine movement and plenty of heat. They’re built from heat‑resistant EPDM rubber, but age, heat cycles, oil contamination and ozone eventually take a toll.

As part of routine servicing, it’s smart to give the radiator hoses a once‑over every service. Look and feel for issues with the engine cold. Typical warning signs include:

• Spongy or excessively soft spots when squeezed, or rock‑hard sections
• Cracks, surface checking, swelling, blistering or oil‑soaked rubber
• Coolant stains, dried crust, or dampness at the hose ends and clamps
• Temperature gauge creeping higher than normal, low coolant, or a sweet smell

Proactive replacement is good insurance. Many techs recommend new hoses around 7–10 years or roughly 120,000–180,000 kilometres, or sooner if any of the above shows up. If the Odyssey is due for a timing belt and water pump service, that’s a convenient time to renew hoses because the cooling system is already drained and open.

When fitting hoses, use quality moulded hoses that match the Odyssey’s original shapes so they don’t kink. Stick with constant‑tension (spring) clamps or OEM‑style clamps, worm‑drive clamps can be over‑tightened and cut into the rubber. Always refill with Honda Genuine Type 2 blue premixed coolant (or an equivalent that explicitly meets Honda specs), and burp the system properly with the heater on hot so air doesn’t get trapped. After a short drive and full cool‑down, recheck the coolant level and clamp joints.

Treating radiator hoses as service items keeps the family bus happy. A fresh pair of hoses and the right coolant is far cheaper than dealing with an overheated V6 on the side of the road.

Popular questions about 2017 Honda Odyssey radiator hoses

How often should the radiator hoses be replaced?
While there’s no fixed interval in the maintenance minder, a practical window is every 7–10 years or about 120,000–180,000 kilometres. Replace sooner if there are cracks, swelling, soft spots, leaks, or after a major overheating event.

What coolant should be used after changing hoses?
Use Honda Genuine Type 2 blue premixed coolant. It’s a long‑life, silicate‑free formulation that protects the Odyssey’s alloy components and seals. Avoid mixing types, if in doubt, drain and refill with fresh Type 2 to maintain correct chemistry.

Can universal flex hoses be used, or do they need to be moulded?
Moulded hoses that match the Odyssey’s original routing are the go. They hold their shape, avoid kinks, and clear nearby components. Universal flex hoses are a compromise and can stress fittings or rub on parts over time.