The spark plugs in a 2008 Toyota RAV4 depend on the engine. The 2.4-liter four-cylinder (2AZ-FE) uses platinum-tipped plugs, while the 3.5-liter V6 (2GR-FE) uses iridium long-life plugs. Always confirm with your vehicle’s VIN and owner's manual before purchasing replacements.
The 2008 RAV4 was offered with two main engine options, and the spark plug type is tied to the specific engine installed in the vehicle. Below is a breakdown intended to help owners identify the correct plugs and replacement intervals, while noting that regional variations can apply.
Engine options in the 2008 Toyota RAV4
Use this list to identify which engine your RAV4 has, since the spark plug type follows the engine choice.
- 2.4-liter inline-4 (2AZ-FE) — the majority of 2008 RAV4 models.
- 3.5-liter V6 (2GR-FE) — available on higher trims or certain markets.
Knowing the exact engine is the first step to selecting the correct spark plugs and understanding the recommended service interval.
Spark plug types by engine
Based on the engine, the original equipment spark plugs are typically different. The following describes common OE practices, but always verify with the official service information for your VIN.
- 2.4L 2AZ-FE — typically platinum-tipped spark plugs (single platinum). When replacing, use an OEM-equivalent platinum plug from Denso or NGK and adhere to Toyota’s recommended interval.
- 3.5L 2GR-FE — typically iridium-tipped long-life spark plugs. Replacement should follow the OEM/recommended interval, using an OEM-equivalent iridium plug from Denso or NGK.
Regional variations can exist, and Toyota may update recommendations in service bulletins. Always confirm the exact plug specification for your vehicle using your VIN, owner’s manual, or by checking Toyota’s official parts catalog or a dealership.
How to verify the exact spark plug specification for your vehicle
If you’re unsure which plugs to buy, use the VIN to pull the exact OE specification from Toyota’s parts database or consult your local dealer. You can also check the owner’s manual under Maintenance > Spark Plugs, or review the service bulletin for your market. When in doubt, choose OEM-equivalent plugs from reputable brands (Denso or NGK) and ensure the heat range matches the engine’s requirements.
Quick verification steps
- Locate your VIN (usually on the driver’s side dash or inside the driver’s door frame).
- Use the VIN to look up the exact spark plug part number in Toyota’s official parts catalog.
- Confirm the recommended replacement interval (often around 100,000–120,000 miles for modern engines).
- If purchasing at a store, verify the plugs’ heat range, reach, and gap specification match Toyota’s OEM recommendation.
Summary
For a 2008 Toyota RAV4, spark plug type depends on the engine: 2AZ-FE 2.4L uses platinum plugs, while the 2GR-FE 3.5L uses iridium plugs. Always verify with your VIN and manual to confirm the exact part number and replacement interval, and choose OEM-equivalent plugs from Denso or NGK for best compatibility.