Parts for your 2007 Honda Stream-Oil seals

2007 Honda Stream oil-seals: what they do and when to replace them

Technical sources back it up: the 2007 Honda Stream (RN6–RN9) with R18A/R20A engines is built with multiple oil seals. Honda’s factory service manual and the Honda EPC/parts catalogue list front and rear crankshaft seals, camshaft and oil pump seals, plus automatic/manual transaxle output shaft (drive shaft) oil seals. Oil‑seals absolutely apply to this model.

Oil seals do a simple but vital job: keep engine and gearbox oil where it belongs, and keep dust and water out. By controlling oil flow and crankcase pressure at key rotating shafts, they protect the Stream’s timing hardware, clutch and torque converter, sensors, and rubber mounts from oil soak. Good seals mean cleaner driveability, stable oil levels, fewer leaks on the driveway, and less chance of a misdiagnosed “oil usage” drama.

Typical leak spots on this model include the front crank seal behind the crank pulley, the rear main seal between engine and gearbox (oil at the bellhousing weep), camshaft or timing cover junctions, and the transaxle’s drive shaft seals leaving oily residue near the inner CVs. Tell‑tales are oil misting, damp grime build‑up, drips after parking, burning oil smell on start‑up, or a low dipstick between services.

As part of regular servicing, a torch‑and‑mirror check around the crank pulley, timing cover edges, sump‑to‑block joints, bellhousing seam, and both driveshaft outputs is worthwhile. If leaks are noted, plan seal replacement when access is best: during clutch or transmission work (rear main and axle seals), or when the front end is apart for accessory or timing cover work (front crank and cam seals). Keep the PCV system healthy to reduce crankcase pressure that can force seals to weep.

Quality matters. Choose OEM or a reputable brand with Viton or equivalent material, and replace any grooved wear sleeves if required. Fitment is about cleanliness, square seating, and the right driver