The GX470 does not use a single universal cabin air filter part number; depending on model year and market, the two most commonly cited OEM numbers are 87139-0W020 and 87139-0W040. This article explains how to identify the correct one for your vehicle and how to verify before buying.
Overview of GX470 cabin air filter variants
The GX470's cabin air filter has appeared under a couple of catalog numbers during its production run (roughly 2003–2009 in the United States). The exact code depends on the manufacturing batch and regional supply agreements, so owners should confirm the correct number before purchase.
OEM vs aftermarket considerations
While OEM (Toyota/Lexus) part numbers are the most reliable for fit and filtration, some aftermarket filters may use alternate cross-references. Always verify that any substitute matches the original specification for your GX470.
- 87139-0W020 — a frequently cited OEM number for GX470 cabins.
- 87139-0W040 — another common OEM catalog number used in certain production years or markets.
These numbers account for the majority of U.S. and some international GX470 configurations, but there are exceptions. Verify with your vehicle’s VIN or dealership records to be certain.
How to confirm your exact part number
To avoid buying the wrong filter, follow these steps to verify the correct part for your GX470.
- Check the owner's manual or the current filter packaging for the printed part number.
- Inspect the area behind the glove box where the filter is located; some vehicles have the part number labeled on the filter itself or on the packaging visible through the intake housing.
- Use your VIN to look up the exact cabin air filter in the official Lexus/Toyota parts catalog or contact a local dealer for an exact match.
Following these steps helps ensure you purchase the exact cabin air filter for your GX470, regardless of production year or market.
Summary
The cabin air filter part number for the GX470 is not universal; common OEM numbers include 87139-0W020 and 87139-0W040, with the precise code dependent on year and region. Always confirm the correct part using your VIN or by consulting a dealer or parts catalog to ensure a proper fit.