Details

• Brand:

  

• SKU:

  17801-21040

• Other Names:

  Air Filter, Element, Element Sub Assembly Ai

• Description:

  Keep your hybrid engine breathing clean air and operating at peak performance with a fresh, factory-certified air filter. The Genuine Toyota Engine Air Filter Element (17801-21040) is an authentic OEM replacement designed specifically to trap airborne dirt, dust, and debris before they reach your vehicle's combustion chamber.

  A clogged or dirty air filter starves your engine of oxygen. This leads to reduced fuel efficiency, sluggish acceleration, and unnecessary engine wear. Replacing your old filter with this genuine Toyota part ensures ideal airflow, protects internal engine components, and maintains the original fuel economy of your hybrid system.

  Vehicle Compatibility

  This engine air filter is engineered exclusively for second-generation, United States specification hybrid variants.

  Year Range	Eligible Models	Engine & Variant Details
  2004 - 2009	Toyota Prius (U.S. Market)	1.5L L4 Hybrid (Base & Touring Trims)

  Note: This specific element is designated for U.S. domestic market models only. Always verify compatibility using your vehicle's specific Vehicle Identification Number (VIN) before finalizing your order.

  Key Product Features

  • Exact Factory Fit: Engineered precisely for the 2nd Generation U.S. market Prius airbox to prevent unfiltered air from bypassing the seal.
  • Advanced Multi-Layer Media: Utilizes premium filtering fibers to capture microscopic contaminants while keeping restriction low.
  • Optimizes Fuel Economy: Restores proper air-to-fuel ratios, helping you get the maximum miles per gallon from your hybrid.
  • Easy Drop-In Installation: Requires no special tools and takes less than five minutes to swap out during routine maintenance.

   

  Technical Product Specifications

  • Brand: Genuine Toyota OEM
  • Component Type: Engine Air Filter Element
  • Filter Media Material: Advanced Non-Woven Synthetic Fibers
  • Frame Material: Rigid Molded Polymer Seal
  • Shape: Rectangular / Panel
  • System Category: Fuel & Emissions / Air Intake System

  Frequently Asked Questions (FAQ)

  How often should I replace my 2004-2009 Prius engine air filter? Toyota generally recommends replacing your engine air filter every 15,000 to 30,000 miles. However, you should check or replace it sooner if you frequently drive on dusty dirt roads, in heavy urban traffic, or in areas with high air pollution.

  Is this an authentic factory Toyota part or an aftermarket copy? This is a 100% brand new, authentic Genuine Toyota component. It arrives in factory-branded packaging and matches the exact quality standards used when your vehicle rolled off the assembly line.

  Can a dirty air filter cause my check engine light to turn on? Yes. Severe air restriction from a clogged filter can disrupt the airflow readings sent to your car's computer. This can trigger a check engine light for a "lean" fuel mixture or mass airflow sensor faults.

   

  Why Choose Genuine Toyota Parts? 

  Your Toyota’s reputation for 200,000+ mile reliability is built on the foundation of Genuine Toyota Parts. By choosing OEM, you are ensuring that every component—from the smallest filter to complex structural accessories—meets the exact engineering standards and rigorous testing that only the manufacturer can provide.

  Unlike aftermarket alternatives, Genuine Toyota Parts offer a precision fit and uncompromising durability, eliminating the guesswork of compatibility. They are designed to work in perfect harmony with your vehicle’s advanced safety and performance systems, protecting your investment and maintaining its resale value over the long haul.

  Keep your Toyota a Toyota.

• Condition: New
• Notes: Included with air cleaner assembly.

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