Parts for your 2017 Honda Odyssey-Drive belt tensioner

2017 Honda Odyssey drive-belt tensioner

Yes — the 2017 Honda Odyssey is fitted with an automatic serpentine drive-belt tensioner. This is documented in Honda’s factory Service Information for the 2017 Odyssey (sections covering “Accessory Drive Belt — Inspection” and “Drive Belt Auto‑Tensioner — Removal/Installation”), and it appears as “Tensioner Assy., Auto” in OEM parts catalogue diagrams for the accessory drive. Major aftermarket technical catalogues for the J35 V6 also list a dedicated tensioner for this model, confirming its presence.

On the 3.5‑litre J‑Series V6, the drive-belt tensioner keeps the single serpentine belt at the right tension as it drives key accessories like the alternator, the power steering pump and the air‑conditioning compressor. Being spring‑loaded and self‑adjusting, it quietly compensates for belt stretch and engine movement, helping the Odyssey charge properly, steer smoothly and keep the cabin cool without the belt squealing or slipping.

As part of regular servicing, the tensioner deserves a quick look and listen. While Honda doesn’t prescribe a fixed replacement interval for the tensioner itself, experienced workshops in Australia and New Zealand will inspect it at each service, typically every 10,000–15,000 km. The serpentine belt is commonly replaced around 100,000–150,000 km (or earlier if cracked or glazed), a tired belt can mask or accelerate tensioner wear, so they’re often assessed together.

• What they check: smooth spring action, pulley alignment, and bearing noise. A chirp, rattle or wobble at the tensioner pulley is a red flag.
• Common signs it’s due: persistent belt squeal on start‑up, visible belt flutter, uneven belt wear, or accessories intermittently underperforming.
• Best practice: if the belt is being replaced and the tensioner shows any play, roughness or weak spring force, replace the tensioner and the idler at the same time to avoid repeat labour.

Replacement is straightforward for a trained tech: safely de‑tension the belt with the correct tool, remove the tensioner assembly, inspect the mounting boss and alignment, then torque the new unit to spec before refitting the belt in the correct routing. Quality parts and proper belt routing matter, a misrouted belt can throw accessories out of action. With a healthy tensioner and fresh belt, the Odyssey’s accessory drive runs quietly and reliably for years, ideal for family duties and long‑haul kilometres across Aussie and Kiwi roads.

Does the 2017 Odyssey have a drive-belt tensioner or is it manual?

It has a spring‑loaded automatic tensioner. Honda’s Service Information and OEM parts diagrams list an “Auto Tensioner” in the accessory drive, so there’s no manual adjustment required during normal servicing.

How can someone tell if their 2017 Odyssey’s tensioner is failing?

Listen for chirping or rattling near the tensioner pulley, watch for belt flutter, and check for uneven belt wear. If the belt squeals on cold start and the pulley feels rough or wobbly, the tensioner is likely due.

Is the timing belt related to the drive-belt tensioner?

No. The Odyssey’s timing belt drives the camshafts (and the water pump), while the serpentine belt and its tensioner run the alternator, A/C and power steering. Different systems, different components and service procedures.