Parts for your 2013 Honda Stream-Oil seals

2013 Honda Stream oil-seals: what they do and when to replace them

Based on the Honda Stream (RN6–RN9) Service Manual and Honda’s Electronic Parts Catalogue for the R18A/R20A models, oil seals are absolutely used on the 2013 Honda Stream. Factory procedures cover crankshaft oil seal replacement (front and rear) and transaxle drive shaft/output shaft seals, confirming these seals are fitted and serviceable components on this vehicle.

On a 2013 Honda Stream, oil seals keep engine oil and transmission fluid exactly where they should be, while keeping dust and moisture out. They’re small bits of rubber with a precision lip that ride on a machined surface, and they’re vital for clean running, correct fluid levels, and avoiding those annoying drips on the driveway.

The big players are the front and rear crankshaft oil seals on the R18A/R20A engines, plus the transaxle drive shaft seals where the CV shafts enter the auto or CVT (market dependent). There’s also a cam plug/seal at the end of the camshaft tunnel and various O-rings and gaskets that support the overall sealing system. When these age, heat-cycle, or see crankcase pressure spikes, they can harden, shrink, or groove the shaft surface and start weeping.

There’s no fixed “change-by” interval for oil seals. Instead, they should be inspected at each service. Tell-tales include oil mist around the crank pulley and lower timing cover, a wet bellhousing join (rear main seal), or transmission fluid seeping around the inner CVs. A light oil smell after a drive, drops under the car overnight, or a spray pattern along the undertray are other handy clues.

Good practice when replacing seals on a Stream includes:

• Use OEM-quality seals and lightly oil the lip before installation.
• Check pulley/hub surfaces for grooves