About this part
What it does. Bosch Bosch Air Filter Bosch 284-5203WS keeps dust and debris out of the intake so the engine draws clean air.
Symptoms that point to this part
- Reduced fuel economy
- Sluggish acceleration
- Visibly dirty or clogged filter element
Service note. Typically inspected at every service and replaced roughly annually.
Fitment. Catalogued as fitting 2019–2021 Lexus Nx300h, 2018 Toyota Rav4. Engine, sub-model and trim can narrow fitment further, so check those attributes on the listing before ordering.