Parts for your 2005 Daihatsu Yrv-Oil seals

2005 Daihatsu YRV Oil Seals — What They Do and When to Sort Them

Yes, oil seals are absolutely used on the 2005 Daihatsu YRV. That’s backed by the Daihatsu YRV factory repair manual for J102/J102G (Engine K3‑VE/K3‑VET sections), the Daihatsu Electronic Parts Catalogue for 2000–2005 models, and common parts listings from Japanese seal makers like NOK. Those technical sources identify crankshaft front and rear main seals, camshaft seals, and transaxle/drive shaft output shaft seals among others.

On this YRV, oil seals keep engine oil and gearbox oil where they belong while keeping dust and water out. They ride on rotating shafts with a spring‑loaded lip, stopping leaks at high rpm and varied temperatures. When they harden with age or a breather system gets blocked, they can seep, weep, or make a right mess.

• Engine: front crank seal, rear main seal, camshaft seals
• Gearbox/diff (manual or auto): left/right drive shaft (output) seals
• Other: auxiliary shaft/pump seals depending on variant

They’re not a “replace every X kilometres” service item. Instead, the sensible move during regular servicing is to inspect for fresh oil around the crank pulley, the bellhousing joint, and at the driveshafts where they enter the gearbox. Keep the PCV/breather system clear so crankcase pressure doesn’t push oil past otherwise healthy seals. If the timing cover is off for chain or gasket work, it’s handy to refresh the front crank and cam seals while you’re in there.

When a seal is leaking, use quality parts (OE or reputable brands like NOK/SKF/Corteco). Lightly oil the new seal lip, check the shaft surface for grooves, and use a proper driver so it sits square and to the specified depth. A rear main on the YRV is a gearbox‑out job