Parts for your 2013 Honda Stream-Oil pump

2013 Honda Stream Oil Pump — Purpose, Maintenance, and Replacement

The 2013 Honda Stream (RN6–RN9) absolutely uses an oil pump. Both common engines for this model year — the 1.8‑litre R18A and 2.0‑litre R20A i‑VTEC — are built with a chain-driven, internal gerotor oil pump mounted in the lower crankcase/sump area. This is documented in Honda’s R18A/R20A engine lubrication system sections in the Honda Stream Service Manual and shown as the “Oil Pump Assembly” in Honda’s Electronic Parts Catalog for RN6–RN9. These technical sources confirm the oil pump is a standard, critical component on this vehicle.

The oil pump’s job is to push engine oil under pressure through galleries to bearings, camshafts, the VTC (variable valve timing) mechanism, and chain tensioners. That steady oil pressure builds a protective film between moving parts, carries away heat, and keeps varnish and sludge at bay. On the R-series engines, consistent oil pressure is also essential for smooth i‑VTEC and VTC operation. If the pump can’t maintain pressure, owners might see an oil warning light, hear top-end rattles at start-up, or notice VTC-related fault codes — none of which should be ignored.

Unlike a belt or a filter, the oil pump isn’t a routine replacement item. For a 2013 Honda Stream, the best “maintenance” for the pump is staying on top of oil quality. Use the correct viscosity (typically 0W‑20 meeting Honda’s spec) and change oil and filter on time — usually every 10,000 km or 12 months in Aussie and Kiwi conditions, or more often if doing lots of short trips, towing, or stop‑start city work. Keep an eye out for leaks, low oil level, and contamination, because a starved pickup or sludged screen can make a healthy pump look bad.

• Warning signs: oil pressure light at idle or on corners, mechanical rattles on cold start, VTC performance codes, metallic glitter in oil, or persistent lifter/cam noise.
• Good practice: use quality filters, check the sump pickup when the pan is off, and verify pressure with a mechanical gauge if faults pop up.

If a replacement is required, it’s a sump‑off job and may involve front cover work. Use OEM‑quality parts, renew O‑rings and seals, apply the correct RTV/sealant on the pan, and prime the pump with clean oil before first start. After reassembly, build oil pressure before letting it fire and recheck for leaks. A workshop familiar with Honda R‑series engines will make this a straightforward, tidy repair.

Does the 2013 Honda Stream have an oil pump?

Yes. The RN6–RN9 Stream with R18A or R20A engines uses a chain‑driven gerotor oil pump integrated in the lower engine. Honda’s service literature and parts catalog list it as the Oil Pump Assembly for these engines.

When should the oil pump be replaced on a 2013 Honda Stream?

There’s no fixed interval. Replace it if confirmed low oil pressure, internal wear, damaged pickup/screen, or contamination is found. Always diagnose first — many “low pressure” issues come down to old oil, the wrong viscosity, a clogged filter, or leaks rather than a failed pump.

Are the oil pumps the same on R18A and R20A Streams?

They’re similar in design and function, but part numbers can vary by engine code and market. Always match by VIN/engine code via a Honda parts catalogue before ordering.