Parts for your 2006 Toyota Aurion-Oil seals

Oil seals on the 2006 Toyota Aurion (GSV40, 2GR‑FE)

Per Toyota technical literature — the 2GR‑FE engine repair manual, the U660E automatic transaxle manual, and Toyota’s Electronic Parts Catalogue for the Aurion GSV40 — this model is fitted with multiple oil seals. These include the crankshaft front and rear main seals, camshaft seals, timing chain cover seals, and the transaxle drive shaft (axle) oil seals, among others. So oil seals are absolutely relevant on a 2006 Toyota Aurion.

On the 2006 Toyota Aurion, oil seals do a simple but critical job: they keep engine oil and automatic transmission fluid in, and dust and water out. Around the 2GR‑FE V6 and the U660E auto, they also help maintain proper lubrication and pressure, which keeps the driveline silky and reliable on long Kiwi and Aussie runs.

Common seals on this Aurion include the front crank seal (behind the harmonic balancer), the rear main seal (between engine and trans), camshaft seals, timing chain cover sealing, and the transaxle’s left/right drive shaft oil seals. When these age or harden, they can seep or leak, leaving tell‑tale dampness, spots on the driveway, or a burnt‑oil whiff after a drive.

As part of routine servicing, it’s worth asking the tech to eyeball key leak points. A quick torch check around the crank pulley, the bellhousing join, and the inner CV areas can catch issues early. There’s no fixed replacement interval for oil seals — they’re generally replaced on condition — but small seeps are easier and cheaper to sort before they turn into proper leaks.

• Keep crankcase ventilation healthy (PCV valve and breathers) so pressure doesn’t push past seals.
• Use the correct oils and ATF (Toyota WS for the U660E) to protect seal materials.
• If the transmission is out for other work, it’s smart to renew the rear main seal at the same time.
• During replacement, use a proper seal driver, lightly oil the lip, and check for shaft wear grooves, a sleeve may be needed.

Left unattended, leaks can contaminate belts, soften bushes, and make a mess of the undertray. After any seal work, a quick recheck at 500–1,000 km helps confirm everything’s dry. Sticking with genuine or reputable aftermarket seals pays off, and a careful install is everything — set square, correct depth, and no nicks on the lip. That’s the recipe for a quiet, clean-running Aurion for many more kilometres.

Popular questions about 2006 Toyota Aurion oil seals

Where are the common oil seals on a 2006 Toyota Aurion?

For this Aurion, think engine and transaxle. Up front is the crankshaft front seal behind the harmonic balancer, out back is the rear main seal between the engine and the auto. The camshafts seal at the timing end, the timing chain cover relies on multiple sealing points, and the U660E has drive shaft (axle) oil seals where the CVs enter the transaxle.

A good inspection path is: front of engine, lower timing area, around the bellhousing join, and both inner CV areas. Any fresh wetness is worth noting.

How often should oil seals be replaced on the Aurion?

There’s no set interval, they’re replaced on condition. If they’re dry and clean, they can stay put for years. If there’s seepage, tackle it before it turns into a drip. It’s common to bundle a rear main seal with transmission-out work, and a front crank seal with front-end engine jobs.

Regular services are the time to check: look, wipe, and recheck next visit. Using the right oils and keeping crankcase ventilation healthy will extend seal life.

What are the signs of a leaking oil seal, and is it safe to keep driving?

Signs include oil mist or wetness at the crank pulley, oil at the bellhousing edge, ATF splatter near inner CVs, a hot oil smell, or spots on the driveway. If it’s a minor seep, short trips may be fine while planning a repair, but monitor levels closely.

Active drips or ATF leaks should be addressed promptly — fluid on exhaust or belts isn’t ideal, and low oil or ATF can lead to expensive damage.