A Toyota Crown Owner's Guide to Replacement Spark Plugs (2023-2024)
Keep your Crown's advanced hybrid engine running at peak performance by choosing the right spark plugs.
- The 2023-2024 Crown has two different engines (2.5L Hybrid and 2.4L Turbo Hybrid) that require different spark plugs. Verify your engine before buying.
- NGK and Denso are the original equipment (OEM) suppliers for Toyota, making them a top-quality choice for aftermarket replacement.
- Symptoms of failure include rough idle, poor acceleration, reduced fuel economy, and a check engine light.
- Modern iridium spark plugs last a long time, with replacement typically recommended between 80,000 and 120,000 miles.
Understanding Spark Plugs in Your 2023-2024 Toyota Crown
The Toyota Crown returned to North America for the 2023 model year with sophisticated hybrid powertrains. These engines rely on high-quality iridium spark plugs to function correctly. Worn or failing plugs can lead to a variety of noticeable problems, from poor fuel mileage to a rough-running engine. This guide will help you understand the symptoms of bad spark plugs and choose the best aftermarket replacements for your vehicle.
Engine Options Matter
The 2023-2024 Toyota Crown is available with two different engines: a 2.5L Hybrid (A25A-FXS engine) and a 2.4L Turbo Hybrid MAX (T24A-FTS engine). These engines require different spark plugs. Always verify which engine your Crown has before purchasing parts. The 2.5L engine generally uses part number 90919-01289 🎬 Watch: Step-by-step spark plug replacement for the A25A engine, while the 2.4L Turbo uses 90919-01303.
Symptoms of Failing Spark Plugs
When your spark plugs start to wear out, your car will tell you. Here are the most common signs to watch for:
🎬 See a visual guide to common bad spark plug symptoms- Rough Idle: Your engine may shake or vibrate when the car is stopped.
- Poor Acceleration: The car may feel sluggish or hesitant when you press the gas pedal.
- Reduced Fuel Economy: You may notice you're filling up the gas tank more often than usual. Worn plugs can reduce fuel efficiency by up to 30%.
- Engine Misfires: You might feel a jerking or stumbling from the engine, especially under load.
- Check Engine Light: A failing spark plug is a common reason for the check engine light to come on.
Choosing the Right Aftermarket Spark Plugs
Toyota uses high-quality original equipment (OEM) spark plugs, typically made by Denso or NGK. When shopping for aftermarket parts, you can often get OEM quality without the dealer price tag.
Pro Tip: NGK is a well-regarded OEM supplier for most Japanese automakers, including Toyota. Choosing NGK is a reliable way to get OEM-equivalent performance.
| Brand Tier | Available Brands | Typical Material | Performance & Longevity |
|---|---|---|---|
| OEM Equivalent / Premium | NGK | Iridium | Excellent performance and long life, often exceeding 100,000 miles. NGK is a trusted OEM supplier for Toyota. |
| Quality Aftermarket | Bosch | Iridium / Platinum | A strong, reliable choice with a reputation for quality engineering. Double Iridium plugs offer a long service life. |
| Budget-Friendly | Autolite | Iridium / Platinum | A good value option that meets performance needs. Their Iridium XP plugs are rated for up to 100,000 miles. |
Frequently Asked Questions (FAQ)
When should I replace my Crown's spark plugs?
Modern iridium spark plugs, like those used in the Crown, have a long service life. While some general advice suggests every 30,000 miles, the manufacturer's recommendation for iridium plugs is often between 80,000 and 120,000 miles. Always check your owner's manual for the specific interval for your vehicle.
Is it okay to use a cheaper spark plug?
While budget-friendly plugs can work, the advanced engines in the Toyota Crown are designed for high-quality iridium plugs. Using a lower-quality plug (like a standard copper one) can lead to reduced performance, poor fuel economy, and a much shorter replacement interval. 🎬 Watch: How to change spark plugs on Toyota 4-cylinder engines It is best to stick with iridium plugs from a reputable brand.
What's the difference between Iridium and Platinum plugs?
Iridium is a harder, more durable material than platinum. This allows iridium plugs to last longer and maintain a precise spark for better efficiency. Platinum plugs are a good upgrade from standard copper but typically don't last as long as iridium plugs. The Crown's original plugs are iridium.
Are there any recalls for Toyota Crown spark plugs?
As of late 2024, there are no specific recalls or technical service bulletins (TSBs) for spark plugs on the 2023-2024 Toyota Crown. There have been recalls for camera issues, but these are unrelated to the ignition system.
Helpful Videos
Technical Specifications
OEM Part Numbers: 90919-01289 (for 2.5L A25A-FXS) 90919-01303 (for 2.4L T24A-FTS)
Material: Iridium, Thread Size: M14x1.25, Spanner Size: 16 mm, Thread Length: 26.5 mm.
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The information in this article is provided for general reference and educational purposes only. Vehicle specifications, procedures, and part compatibility can vary by production date, trim level, and region. Always consult your vehicle's factory service manual and verify part numbers before purchasing or performing repairs. Safety-critical components such as airbags, seat belts, and braking systems should be installed by a qualified professional.
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