Parts for your 2012 Honda Stream-Drive belt

2012 Honda Stream drive belt: what it does and when to replace it

Yes, the 2012 Honda Stream uses a drive (accessory/serpentine) belt. Technical references including the Honda Stream RN6–RN9 service manual (R18A/R20A engines, accessory drive section), the Honda Electronic Parts Catalogue, and aftermarket catalogues such as Gates Micro‑V and Dayco Australia list a front‑end accessory belt plus an automatic tensioner for this model. These sources also note the engines run a timing chain for cam drive, so the drive belt is strictly for the external accessories.

On the 2012 Stream, the drive belt spins the alternator and air‑con compressor, and on certain variants also the water pump and a hydraulic power steering pump (where fitted, some trims use electric power steering). That makes the belt a quiet achiever under the bonnet—keeping the battery charged, the cabin cool, and, where applicable, the cooling system and steering assist humming along.

For day‑to‑day care, it pays to have the belt inspected at each service (about every 10,000–15,000 km). A quality belt can last 90,000–150,000 km or 6–8 years, but climate, stop‑start use, and accessory load can bring that forward. The Honda service literature calls for condition checks and correct tension via the automatic tensioner, if there’s any cracking, glazing, frayed edges, missing ribs, chirps or squeals—especially on cold start—book a replacement. If the steering suddenly feels heavy on a hydraulic‑assisted model, or the battery light pops on, the belt could be slipping or done. Where the water pump is belt‑driven, a failed belt can quickly lead to overheating, so don’t chance it.

Best practice at replacement is to fit an OE‑quality belt and assess the automatic tensioner and idler pulleys at the same time. Noisy bearings or a lazy tensioner will chew through a fresh belt. A workshop will follow the belt routing diagram under the bonnet or in the service manual, rotate the tensioner with the correct tool, and set the belt so it runs true on all ribs. It’s a straightforward job for a mechanic and a smart bit of preventative maintenance for any Stream doing family or city duties around Australia or New Zealand.

• Watch for: squeals/chirps, cracks, glazing, coolant or oil contamination, dim lights, heavy steering (hydraulic), rising temp gauge.
• Replace sooner if: there are visible defects, noise persists after tensioner check, or contamination is present.

Popular questions

Does the 2012 Honda Stream have a timing belt or a timing chain?
It uses a timing chain on both the R18A 1.8‑litre and R20A 2.0‑litre engines. The drive belt discussed here is the external accessory belt and is separate from the chain. Honda’s service documentation and parts listings make this distinction clear.

How often should the drive belt be replaced in Aussie or Kiwi conditions?
Have it inspected at each service and expect replacement roughly every 90,000–120,000 km or 6–8 years, earlier if there are signs of wear or noise. Heat, urban stop‑start driving, and frequent air‑con use can shorten the interval.

What belt fits my 2012 Stream—are there different sizes?
Yes. Belt length and routing vary with engine (R18A vs R20A) and equipment (with/without hydraulic power steering, air‑con). The Honda EPC and major belt catalogues (Gates/Dayco) list options by VIN and trim, so matching to the exact variant is the way to go.