What is the engine code for a 2004 Toyota RAV4?
Engine codes for a 2004 RAV4 vary by the installed engine: most models used either 1AZ-FE (2.0 L) or 2AZ-FE (2.4 L), and a few markets used 1AZ-FSE (2.0 L direct injection). The exact code on a given vehicle depends on the market and trim level.
In this article, we break down which engines were available, how to identify the correct code, and why the code matters for parts, maintenance, and compatibility.
Engine options in the 2004 RAV4
The following list details the engine codes you may encounter on a 2004 RAV4 models, with basic displacement and notes on where they were used. This helps owners and buyers verify the engine type before parts shopping or service.
- 1AZ-FE — 2.0-liter inline‑4. A widely used base engine in some markets and trims; features DOHC with VVT-i. Common in several 2000s RAV4 variants outside North America.
- 2AZ-FE — 2.4-liter inline‑4. A larger engine used in many North American and some international models; offers more torque and is paired with various transmissions depending on trim.
- 1AZ-FSE — 2.0-liter direct-injection inline‑4. Found in select markets, offering improved fuel efficiency and different tuning compared to the 1AZ-FE.
Engine availability can vary by country and model year within the 2004 RAV4 lineup. The exact code on a given vehicle is the best indicator of the installed engine for parts matching and maintenance.
How to confirm your engine code
To be sure which engine code your 2004 RAV4 uses, check these sources and locations on the vehicle itself and in official documents.
- Engine block or valve cover stamping: look for a stamped code such as 1AZ-FE, 2AZ-FE, or 1AZ-FSE on the engine itself.
- Radiator support or hood area sticker: many cars display the engine code on a label in the engine bay.
- Vehicle documentation: the owner's manual, window sticker, or Toyota service portal can mention the engine code.
Knowing the exact engine code ensures compatibility when ordering parts, performing maintenance, or diagnosing issues that vary by engine variant.
Regional notes
The RAV4 sold in the United States, Canada, Europe, and Asia during 2004 could have had different engine setups. Direct-injected 1AZ-FSE units were offered in select markets, while the standard 1AZ-FE or 2AZ-FE covered the majority of models in others. When buying used, it is especially important to verify the engine code because parts and service procedures differ between the 2.0 L and 2.4 L variants.
Ultimately, the engine code is a practical detail that affects maintenance and parts compatibility. If you want a precise answer for a specific VIN, you can share the VIN or the market/trim and I can narrow it down further.
Summary
The 2004 Toyota RAV4 could be equipped with either the 1AZ-FE (2.0 L) or the 2AZ-FE (2.4 L) engines, with occasional use of the 1AZ-FSE (2.0 L DI) in some markets. Identifying the exact code requires checking the engine block or bay labels, or consulting the vehicle’s documents. Knowing the engine code helps with parts compatibility and service steps.
