What kind of spark plugs does the Toyota Yaris use?
Most Toyota Yaris models built in the last decade use iridium or platinum long-life spark plugs, with the exact type depending on the engine and market. Check your owner's manual or ask a Toyota service center to confirm the correct plug for your specific Yaris model.
Engine generations and plug types
Different Yaris engines across generations have used different spark plugs. Here’s a quick guide to what you might expect by era.
Older Yaris models (pre-2010)
- Typically used conventional copper-core plugs with shorter service life and more frequent replacement intervals.
Older Yaris versions relied on standard copper plugs, which generally require more frequent changes compared with modern long-life designs.
Modern Yaris designs (2010s to present)
- Moved toward platinum or iridium long-life plugs to meet efficiency and emissions standards, with replacement intervals commonly around 60,000–100,000 miles, depending on engine and climate.
In recent years, Toyota has favored iridium or platinum plugs on many Yaris variants to maximize durability and minimize maintenance, though exact specifications vary by engine code and market.
How to identify the correct spark plug for your Yaris
To ensure you install the right plug, follow these steps:
- Find your engine code and year from the dash plaque, owner’s manual, or VIN lookup.
- Consult Toyota’s official service information or your owner’s manual for the recommended plug type (iridium vs platinum) and the suggested replacement interval.
- When buying replacements, choose OEM-equivalent plugs from Denso or NGK, ensuring the correct heat range and thread size for your engine.
- Check the gap on the new plugs and torque them to the manufacturer’s specification during installation.
If you’re unsure, ask a Toyota service center or a trusted mechanic for the exact part number for your Yaris engine and market.
Maintenance tips and replacement intervals
Practical guidance to keep your Yaris running smoothly:
- Use iridium or platinum long-life plugs on most modern Yaris engines; these last longer than copper-core plugs and are less prone to fouling under typical driving.
- Follow the maintenance schedule in your owner’s manual; many models target 100,000 miles (or 160,000 km) for iridium/platinum plugs, but some markets may specify 60,000–90,000 miles.
- Always replace spark plugs as a set on multi-cylinder engines to maintain balanced combustion.
- Check for proper sealing to prevent leaks and ensure spark plug boots or coil packs are in good condition.
Bottom line: for most current Toyota Yaris models, iridium or platinum long-life plugs are the norm, but the exact specification depends on engine and market. Verify before purchase and installation.
Summary
The Toyota Yaris typically uses iridium or platinum long-life spark plugs in modern engines, with older models using conventional or platinum plugs. The exact type depends on engine code and market. Always consult the owner’s manual or a Toyota dealer for the correct heat range, part number, and replacement interval.
What spark plugs for a 2007 Toyota Yaris?
- Autolite XP Iridium Spark Plug XP3924.
- Autolite Iridium Ultra Iridium Spark Plug AI3924.
- Bosch Double Iridium Spark Plug 9600.
- NGK Iridium IX Iridium Spark Plug 5464.
- NGK Ruthenium HX Ruthenium Spark Plug 95839.
- NGK Laser Iridium Spark Plug 4996.
- DENSO Auto Parts Iridium Spark Plug 5303.
What spark plug does a Toyota Yaris take?
Toyota Yaris Spark Plug Comparison Chart
| Year | OE Metal | Amount Required |
|---|---|---|
| 2020 | Iridium Iridium | 4 4 |
| 2019 | Iridium Iridium | 4 4 |
| 2018 | Iridium Iridium | 4 4 |
| 2017 | Iridium Iridium | 4 4 |
What brand of spark plugs does Toyota use?
Toyota uses its own "Genuine Toyota" spark plugs, but also relies on Denso and NGK as OEM (original equipment manufacturer) suppliers, so you will find both in your vehicle. Denso and NGK are both considered high-quality brands, but the specific brand and part number will vary by model and engine type, making it essential to consult your owner's manual or use your vehicle's information to find the correct replacement.
Key brands used by Toyota
- Genuine Toyota: Toyota also manufactures and sells "Genuine Toyota" spark plugs, which are designed to meet the specific performance and fit standards for their vehicles, notes Olathe Toyota Parts Center.
- Denso: Denso is a major supplier for Toyota and is used in many models, including the 3.5L 2GR-FKS engine, according to this YouTube video and this Facebook post.
- NGK: NGK is another reputable brand that serves as a Toyota supplier, with specific Laser Iridium spark plugs often specified as original equipment for certain models like the Corolla, says Advance Auto Parts and this ngk-sparkplugs.co.th article.
How to choose the correct spark plug
- Check your owner's manual: The owner's manual is the definitive source for the correct spark plug part number and specifications for your specific vehicle.
- Use the vehicle's specific information: When purchasing, use your vehicle's year, make, model, and engine size to ensure you get a compatible plug. For instance, aftermarket stores may not carry the exact Denso spark plugs a specific vehicle requires, warns this YouTube video.
- Purchase from a trusted source: It is best to purchase from a Toyota dealership or a reputable auto parts store to avoid counterfeit products, suggests this YouTube video.
How often should I replace the spark plugs on my Toyota Yaris?
The 68,000 mile service for your Toyota Yaris Sedan will be the particular same as the 3,000 mile service interval, nevertheless, if you did not change your fuel filter or spark plugs at 43,500 miles or sooner, it is recommended that you have both replaced during the 68,000 mile service interval.
