The most common OEM cabin air filter part numbers for a 2019 Lexus RX 350 are 87139-0D010 (standard, non-activated carbon) and 87139-0D020 (activated carbon). The exact number can vary by region and trim, so it’s best to verify with your VIN or a Lexus dealer.
Overview of what this means for your RX 350
The cabin air filter keeps dust, pollen, and odors out of the passenger compartment. For the RX 350, Lexus offers two main variants of this filter, and the cataloged part number changes depending on whether activated carbon is included to help reduce odors and odors-related pollutants. Regional catalogs and dealer specifications may list different suffixes, so confirmation is key.
Common OEM part numbers
Below are the two most frequently cited OEM cabin air filter part numbers for the 2019 RX 350. The exact one for your vehicle should be confirmed via VIN lookup or dealership assistance.
- 87139-0D010 — Standard cabin air filter (non-activated carbon)
- 87139-0D020 — Activated carbon cabin air filter
Note: Regional catalogs may use slightly different suffixes or related part numbers. Always verify with your vehicle’s VIN to avoid ordering the wrong filter.
How to verify the correct part number for your vehicle
To ensure you purchase the correct filter, use your VIN to pull up the exact part in official catalogs or through a dealer. The steps below guide you through a quick verification process.
- Locate your VIN, typically found on the driver’s side dashboard or door jamb sticker.
- Visit the Lexus Parts Lookup site or contact a Lexus dealer and enter the VIN.
- Review the suggested cabin air filter options for your vehicle and note whether the standard or activated-carbon version is listed.
- Purchase the matching part number (e.g., 87139-0D010 or 87139-0D020) based on the catalog result.
Verifying with VIN ensures compatibility and helps avoid ordering mistakes, especially for regional variants.
Alternatives and aftermarket options
If you prefer aftermarket options, several reputable brands offer cabin air filters that fit the RX 350. When choosing, match the filter size, mounting style, and whether an activated-carbon version is required. Examples include brands such as Fram, Bosch, and Denso, but always cross-check part compatibility with your VIN.
Summary
For a 2019 Lexus RX 350, the typical OEM cabin air filter part numbers are 87139-0D010 (standard) and 87139-0D020 (activated carbon). Because regional differences and trim variations exist, the safest approach is to verify the exact part number using your vehicle’s VIN via Lexus Parts Lookup or with a dealer. This ensures you get the correct filter and maintains optimal cabin air quality.