Parts for your 2006 Honda Stream-Oil seals

2006 Honda Stream oil seals — what they do and when to replace them

Oil seals are absolutely used on the 2006 Honda Stream. Factory documentation such as the Honda Service Manual and Honda Electronic Parts Catalogue for RN1–RN5 (D17A/K20A) and RN6–RN9 (R18A/R20A) models list multiple engine and transmission oil seals, including crankshaft front and rear main seals, camshaft seals, and driveshaft/output shaft seals. OEM suppliers to Honda (such as NOK) also specify radial lip seals for these locations on the same engines and gearboxes.

For this Honda, oil seals keep engine and transmission fluids where they belong and road grit where it doesn’t. Up front, a crankshaft seal sits behind the crank pulley, at the rear, a larger “rear main” seal surrounds the crank where it meets the flywheel or torque converter. Camshaft seals live behind the timing cover on engines so equipped. In the driveline, the transaxle uses oil seals at the driveshaft/output shafts to hold ATF or CVT fluid. When seals harden or wear, they can weep — leading to messy undertrays, low fluid levels, and in bad cases, clutch or belt contamination.

There’s no fixed interval for oil seal replacement on a 2006 Stream, they’re replaced when they leak or when access is convenient. It’s smart to bundle front crank and cam seals with a timing-belt job on belt-driven variants, and to inspect/replace those seals during front cover work on chain engines. Rear main seals are best tackled when the gearbox is already out (for a clutch on manuals, or major auto/CVT work). Driveshaft/output shaft seals are commonly done when replacing CV joints or axles.

Good servicing habits help seals last. Keep crankcase ventilation (PCV) working to avoid pressure build-up, use the specified engine oil and ATF/CVT fluids, and check for seepage at every service. If a seal does need doing, choose genuine or high-quality equivalents, clean the bore, lightly oil the lip, and press the seal square with the correct driver. After any seal job, top up the fluid, clean the area, and re-check for fresh traces after a short drive.

• Watch for: oil mist around the crank pulley or timing cover, drips at the bellhousing, burnt oil smell, greasy inner tyres from a driveshaft seal, or unexplained fluid loss.
• Typical replacement triggers: timing belt/front cover work, clutch or gearbox removal, noisy/failed CV joints, or visible leaks.

Where are the common oil seals on a 2006 Honda Stream?

They include the front crankshaft seal, rear main seal, camshaft seals (where applicable), and the transmission’s driveshaft/output shaft seals. Depending on engine and transmission combo, there may also be input shaft and selector seals in the gearbox. These are all documented in Honda’s workshop manual and parts catalogue for RN-series Streams.

How often should the oil seals be replaced?

There isn’t a set kilometre interval. Replace them when they show signs of leakage, or while you’re “in there” for related work: front seals during timing-belt/front cover service, rear main with a clutch or transmission-out job, and driveshaft seals with CV/axle work. Many start weeping somewhere around the 150–250,000 km mark, but condition and maintenance matter more than distance.

What are the signs of a leaking oil seal on this model?

Look for fresh oil around the crank pulley or timing cover, wetness at the bellhousing, oily grime on the subframe, drops on the driveway, or a burnt oil smell on warm-up. For transmission/output seals you may see ATF/CVT fluid around the driveshafts or greasy inner tyres. Monitor engine oil and ATF/CVT levels, unexplained loss points to a leak.