Parts for your 2006 Lexus Is-Air filter

2006 Lexus IS air filter — what it does and when to change it

Yes, the 2006 Lexus IS uses an engine air filter. Technical references including the Lexus Owner’s Manual for the 2006 IS range, Toyota/Lexus Repair Manual for the GSE/GRS/ALE20 series, and the Toyota/Lexus Electronic Parts Catalogue (common air cleaner element part numbers 17801-0P060 and 17801-31130 for petrol models) all specify a replaceable air filter element in the air cleaner housing. There’s also a separate cabin (pollen) filter, but this page focuses on the engine air filter.

For a 2006 Lexus IS (IS250/IS350, and diesel variants), the air filter’s job is straightforward: feed the engine clean air while keeping dust, sand, bugs, and road grime out of the intake. On the direct-injected V6 petrol engines, clean, consistent airflow helps the mass air flow (MAF) sensor read accurately, which keeps fuel economy tidy and throttle response crisp. A fresh filter also helps protect the throttle body and intake valves from unnecessary contamination.

Service-wise, the air filter should be inspected regularly and replaced based on driving conditions. Lexus schedules typically call for inspection about every 15,000 km and replacement around 30,000–40,000 km, but Aussie and Kiwi conditions can be dusty, so many owners swap the element closer to 15,000–20,000 km if they’re driving on unsealed roads or in heavy traffic with lots of airborne grime. City commuters in cleaner environments can stretch it further if inspection shows the element is still clean and intact.

DIY-friendly? Absolutely. Pop the airbox clips or screws, lift the lid, and swap the element. Make sure the new filter’s sealing edge sits flat in the housing and the lid is fully latched to avoid unfiltered air sneaking past. It’s a good idea to wipe out the airbox and check the snorkel for leaves. Avoid high-pressure air blasts that can damage the filter media. If choosing aftermarket, a quality dry paper or synthetic element is ideal, oiled performance filters can contaminate the MAF if over-oiled, so they’re best avoided unless maintained precisely.

• Common signs it’s due: dull throttle response, increased fuel use, noticeably dirty or darkened filter media, or a musty intake smell after dusty drives.
• Tip: If driving off-road or along coastal routes with salty air, shorten the replacement interval for extra engine protection.

Popular questions about 2006 Lexus IS air filters

How often should the engine air filter be replaced in Australia or New Zealand?
Most owners are well served inspecting it every 15,000 km and replacing it around 30,000–40,000 km. In dusty or rural conditions, changing it closer to 15,000–20,000 km keeps performance and economy on point.

Which air filter fits the 2006 IS250/IS350?
Lexus/Toyota catalogue listings commonly show engine air filter element part numbers 17801-0P060 or 17801-31130 for petrol models. Always confirm by VIN, as build month and market can vary.

Are reusable/oiled filters a good idea?
They can work, but if over-oiled they may contaminate the MAF sensor. For low-fuss reliability, a quality dry paper or synthetic element is usually the safest bet.