There are 4 kinds of Denso filters (made in Japan) you can get for your Toyota/Lexus:
90915-20004: What comes factory-installed in Japan on V8 Lexus engines. Taller than 20003.
90915-20003: What comes factory-installed in Japan on 6-cylinder Lexus engines.
90915-YZZB5: Cheaper version of 90915-20004. No bypass valve, smaller surface area (fewer ribs in the filter).
90915-YZZB9: Cheaper version of 90915-20003.
The 20004 will provide the most filtering capability of the 4, and is the highest quality OEM filter you can get. Many Lexus owners with 6 cylinder engines opt for this filter instead of the 20003 (price difference is minimal).
I noticed Toyota/Lexus dealers using either the lower quality domestic-made filter or the cheaper Japanese-made filters unless you specifically request a 20003 or 20004.
Prices can vary widely on these filters depending on which dealer you go to. You shouldn't have to pay more than $8 for the 90915-20004 filter, yet the closest Toyota/Lexus dealers to me charge up to $14 for it.
90915-20004: What comes factory-installed in Japan on V8 Lexus engines. Taller than 20003.
90915-20003: What comes factory-installed in Japan on 6-cylinder Lexus engines.
90915-YZZB5: Cheaper version of 90915-20004. No bypass valve, smaller surface area (fewer ribs in the filter).
90915-YZZB9: Cheaper version of 90915-20003.
The 20004 will provide the most filtering capability of the 4, and is the highest quality OEM filter you can get. Many Lexus owners with 6 cylinder engines opt for this filter instead of the 20003 (price difference is minimal).
I noticed Toyota/Lexus dealers using either the lower quality domestic-made filter or the cheaper Japanese-made filters unless you specifically request a 20003 or 20004.
Prices can vary widely on these filters depending on which dealer you go to. You shouldn't have to pay more than $8 for the 90915-20004 filter, yet the closest Toyota/Lexus dealers to me charge up to $14 for it.