What spark plugs for 2019 WRX?
When it comes to maintaining your 2019 Subaru WRX, one of the most important components to consider is the spark plugs. Spark plugs play a crucial role in the engine's ignition system, ensuring efficient combustion and optimal performance. In this article, we'll explore the best spark plug options for your 2019 WRX and provide guidance on how to select the right ones.
Recommended Spark Plugs for the 2019 Subaru WRX
The 2019 Subaru WRX is equipped with a 2.4-liter turbocharged Boxer engine, which requires specific spark plugs to function at its best. Based on the information gathered from various automotive experts and manufacturer recommendations, the following spark plugs are considered the best options for the 2019 WRX:
- NGK Iridium IX Spark Plugs (Part Number: SILZKR7B11) - These iridium-tipped spark plugs are designed to provide a longer service life, improved ignitability, and enhanced engine performance. They are a direct replacement for the factory spark plugs and are highly recommended by Subaru enthusiasts.
- Denso Iridium TT Spark Plugs (Part Number: 5304) - Another high-quality option, the Denso Iridium TT spark plugs offer excellent durability, improved fuel efficiency, and consistent engine performance.
- Bosch Platinum+4 Spark Plugs (Part Number: 9604) - Bosch's Platinum+4 spark plugs are a reliable choice, providing a balance of performance, longevity, and cost-effectiveness.
It's important to note that the spark plugs should be replaced at the recommended intervals specified in your 2019 Subaru WRX's owner's manual, typically around 60,000 miles or 5 years, whichever comes first.
Factors to Consider When Choosing Spark Plugs
When selecting spark plugs for your 2019 WRX, there are several factors to consider to ensure you choose the right ones:
- Spark Plug Type: The 2019 WRX requires iridium or platinum-tipped spark plugs, as they offer improved performance, longer lifespan, and better fuel efficiency compared to standard copper spark plugs.
- Spark Plug Gap: The spark plug gap, which is the distance between the center and ground electrodes, should match the manufacturer's specifications. Incorrect gap settings can lead to misfiring and reduced engine performance.
- Heat Range: Spark plugs come in different heat ranges, which refer to their ability to dissipate heat. The 2019 WRX's engine requires a specific heat range to ensure optimal combustion and prevent pre-ignition or fouling.
- Brand and Quality: Choosing a reputable brand, such as NGK, Denso, or Bosch, can ensure you're getting high-quality spark plugs that meet or exceed the manufacturer's standards.
By considering these factors and selecting the recommended spark plugs for your 2019 Subaru WRX, you can help maintain your vehicle's performance, fuel efficiency, and overall engine health.
Is iridium or platinum better?
Iridium Spark Plugs Can Handle High Engine Temperatures
It shares the same benefits over copper as platinum, but it is said to be eight times stronger than platinum, and it has a higher melting point so it can handle the hottest, highest-performing engines.
How often should a spark plug change in a WRX?
every 60,000 miles
To extend the life of your Subaru spark plugs and ensure your engine runs smoothly, regular maintenance is key. This includes following Subaru's recommended service intervals—typically every 60,000 miles for standard replacements.
Is it worth upgrading to iridium spark plugs?
- Longevity: Iridium spark plugs typically last longer than standard copper or platinum plugs, often up to 100,000 miles or more. This can reduce the frequency of replacements and associated labor costs.
- Performance: They provide better ignition performance, especially in colder conditions or for high-performance engines.
What type of spark plugs are best for turbo engines?
I used 2 types of sparkplugs for my turbo-engine, and they worked fine: The NGK B8ES and the Bosch W4CC. Just keep on the cold side with your plugs, and the engine will be fine. Use normal copper-core plugs as they are better for turbo-use than expensive platinum plugs and are far cheaper aswell!!
How long do iridium spark plugs last on Subaru?
60,000 to 80,000 miles
Typically we have found you can expect 60,000 to 80,000 miles on an unaltered motor. NGK Laser Iridium Spark Plugs have iridium center and a platinum ground electrodes.
Are OEM spark plugs worth it?
While they're a little more costly than most after-market brands, they're precisely engineered for your engine. They will maximize fuel efficiency and save you hundreds of dollars at the fuel pump!
Is there a downside to iridium spark plugs?
Disadvantages of Iridium Spark Plugs
You can expect to pay around triple the price of copper spark plugs, and it doesn't always improve how well your engine runs. And if the iridium is damaged, the benefits can be negated almost immediately.
What spark plugs are recommended for?
Copper Spark Plugs
These plugs are usually best for older, low-voltage systems. Because of copper's high conductivity, some high-performance vehicles require them. Nickel is softer than platinum or iridium, and thus has a much shorter life. This type is also not compatible with many newer engines.
How much does it cost to replace spark plugs on a WRX?
| Car | Service | Shop/Dealer Price |
|---|---|---|
| 2021 Subaru WRXH4-2.0L Turbo | Service typeSpark Plug Replacement | Shop/Dealer Price$635.47 - $798.52 |
| 2014 Subaru WRXH4-2.5L Turbo | Service typeSpark Plug Replacement | Shop/Dealer Price$674.80 - $887.59 |
| 2020 Subaru WRXH4-2.0L Turbo | Service typeSpark Plug Replacement | Shop/Dealer Price$635.12 - $797.90 |
How long do OEM Subaru spark plugs last?
While the answer depends on the make and model of your vehicle, as a good example, the newest Subaru BOXER® engines are built with spark plugs made of ultra resilient materials, such as platinum. This allows them to be replaced about every 60,000 miles.
