Mazda offers a variety of different types of spark plugs. The best spark plugs for Mazda will depend on your vehicle’s specific needs. Here are some factors to consider when choosing the best spark plugs for Mazda:
- The type of engine in your Mazda
- The age and condition of your vehicle
- Your driving habits
Notice
You will want to choose platinum or iridium spark plugs if you have a newer Mazda with a Skyactiv engine. These types of spark plugs offer better performance and fuel economy.
Looking for a quick answer? Check out my list of the best options available and find the perfect set for your car.
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Best For non-turbo non-SKYACTIV engines
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Best for 2010-2013 Mazda 3 Mazdaspeed
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Best for Mazda 3 SKYACTIV
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What Spark Plugs Does Mazda Use?
Want to know what kind of spark plugs are in a Mazda 3? In this table, I have collected info on all factory spark plugs for Mazda 3 engines by year. Using the correct factory OEM plugs for your Mazda model is best. You can also use this if you are searching for a Mazda 3 spark plug gap.
| Engine | OEM Spark Plug | Spark Plug Gap |
|---|---|---|
| 2004-2006 2.0L | Mazda L303-18-110 | 1.25-1.35 mm (0.049-0.053 in) |
| 2004-2006 2.3L | Mazda L303-18-110 | 1.25-1.35 mm (0.049-0.053 in) |
| 2007-2009 Turbo engine | Mazda L3K9-18-110A, L3Y3-18-110 | 0.70-0.80 mm (0.028-0.031 in) |
| 2007-2009 2.0L/2.3L non-Turbo engines | Mazda L3K9-18-110A, L3Y3-18-110 | 1.25-1.35 mm (0.050-0.053 in) |
| 2010-2013 2.3L Turbo | L3BD-18-110, L3YD-18-110 | 0.60-0.70 mm (0.024-0.028 in) |
| 2010-2013 2.0L/2.5L non-Turbo engines | LFG1-18-110, L3Y2-18-110 | 1.25-1.35 mm (0.049-0.053 in) |
| 2014-now SKYACTIV-G 2.0 | Mazda Genuine spark plug | 1.11 (0.044 in) |
| 2014-now SKYACTIV-G 2.5 | PE5R-18-110, PE5S-18-110 | 1.11 (0.044 in) |
Source: Mazda USA
Best Spark Plugs For Mazda 3
I’ve rounded up the best OEM alternatives below if you’re looking for replacement or performance spark plugs. These spark plugs are safe to use in Mazda 3 engines.
2004-2009 Mazda 3 Spark Plugs
- Spark plug gap: 0.050" (1.3 mm);
- Change interval: 75,000 miles;
- Longevity: 100,000 miles;
- Ground electrode: Platinum;
- Center electrode: Iridium;
- Resistor value: 5k Ohm.
- Fitment: 2004-2005 Mazda 3 2.0L/2.3L
With the NGK 4477 ITR6F-13 Laser Iridium spark plug, you get reliable ignition each time. The fine wire iridium tipped center electrode, and fine wire platinum tipped ground electrode ensure that your vehicle has better fuel efficiency and lower emissions.
Not only that, but this spark plug is made with trivalent metal plating to provide superior anti-corrosion and anti-seizing properties.
Additionally, it features corrugated ribs to prevent flashover and a pure alumina silicate ceramic insulator for maximum strength and heat transfer. You can also benefit from the copper core aiding in heat removal and triple seals preventing leakage.
- Reliability
- Longevity
- Perfect fitment
- Price
- Spark plug gap: 0.050" (1.30 mm);
- Change interval: 75,000 miles;
- Longevity: 100,000 miles;
- Ground electrode: Platinum;
- Center electrode: Iridium;
- Resistor value: 5k Ohm;
- Hex Size: 5/8" (16 mm);
- Fitment: 2006-2013 Mazda 3 non-turbo non-SKYACTIV engines.
NGK's 90083 LTR5BI-13 Laser Iridium Spark Plug is the perfect choice for anyone seeking a durable and effective spark plug. This spark plug features an unparalleled design to ensure superior ignitability, stable idle, improved fuel efficiency, and lower emissions.
The fine wire iridium-tipped center electrode and the platinum-tipped ground electrode are designed to provide a slow wear rate.
In addition, trivalent metal plating allows for superior anti-corrosion and anti-seizing properties, while corrugated ribs prevent flashover.
For additional protection, the 90083 comes equipped with a pure alumina silicate ceramic insulator to provide superior strength and better heat transfer and a copper core to assist in heat removal.
Finally, triple seals protect against leakage, making it even more efficient and reliable. When you need an enduring spark plug that delivers an efficient performance you can trust, select the NGK 90083 LTR5BI-13 Laser Iridium Spark Plug – you won't be disappointed.
- Longevity
- Durability
- Performance
- Perfect fitment
- Price
- Spark plug gap: 0.031" (0.80 mm);
- Change interval: 60,000 - 75,000 miles;
- Longevity: 100,000 miles;
- Ground electrode: Platinum;
- Center electrode: Iridium;
- Resistor value: 5k Ohm;
- Hex Size: 5/8" (16 mm);
- Fitment: 2007-2009 MazdaSpeed 3 engine.
The NGK 3787 ILTR6A-8G Laser Iridium Spark Plug offers a superior level of ignitability and long service life. It features a fine-wire iridium-tipped center electrode and a fine-wire platinum-tipped ground electrode for a slow wear rate. This ensures a stable idle, improved fuel efficiency, and lower emissions. Its trivalent metal plating provides superior anti-corrosion and anti-seizing properties, while its corrugated ribs prevent flashover.
To maintain the product’s performance and longevity, it is also equipped with a pure alumina silicate ceramic insulator for excellent strength and heat transfer and a copper core to aid in heat removal. Additionally, this spark plug has triple seals to keep it leakproof even after extended use.
The NGK 3787 ILTR6A-8G Laser Iridium Spark Plug is an ideal choice for cars that require premium ignition performance.
- Price
- Performance
- Longevity
2010-2013 Mazda 3 Spark Plugs
- Spark plug gap: 0.050" (1.30 mm);
- Change interval: 75,000 miles;
- Longevity: 100,000 miles;
- Ground electrode: Platinum;
- Center electrode: Iridium;
- Resistor value: 5k Ohm;
- Hex Size: 5/8" (16 mm);
- Fitment: 2006-2013 Mazda 3 non-turbo non-SKYACTIV engines.
NGK's 90083 LTR5BI-13 Laser Iridium Spark Plug is the perfect choice for anyone seeking a durable and effective spark plug. This spark plug features an unparalleled design to ensure superior ignitability, stable idle, improved fuel efficiency, and lower emissions.
The fine wire iridium-tipped center electrode and the platinum-tipped ground electrode are designed to provide a slow wear rate.
In addition, trivalent metal plating allows for superior anti-corrosion and anti-seizing properties, while corrugated ribs prevent flashover.
For additional protection, the 90083 comes equipped with a pure alumina silicate ceramic insulator to provide superior strength and better heat transfer and a copper core to assist in heat removal.
Finally, triple seals protect against leakage, making it even more efficient and reliable. When you need an enduring spark plug that delivers an efficient performance you can trust, select the NGK 90083 LTR5BI-13 Laser Iridium Spark Plug – you won't be disappointed.
- Longevity
- Durability
- Performance
- Perfect fitment
- Price
- Spark plug gap: 0.028" (0.70 mm);
- Change interval: 60,000 - 75,000 miles;
- Longevity: 100,000 miles;
- Ground electrode: Platinum;
- Center electrode: Iridium;
- Resistor value: 5k Ohm;
- Hex Size: 5/8" (16 mm);
- Fitment: 2010-2013 Mazda 3 Mazdaspeed engine.
The NGK 3787 ILTR6A-8G Laser Iridium Spark Plug is the superior choice for getting the most out of your engine and vehicle performance. With a fine wire, iridium tipped center electrode, and fine wire platinum tipped ground electrode, it sees to a slow wear rate, thus allowing for a stable idle and improved fuel efficiency.
Additionally, its trivalent metal plating provides superior anti-corrosion and anti-seizing properties. The corrugated ribs prevent flashover, while the pure alumina silicate ceramic insulator grants increased strength and better heat transfer, while a copper core aids in heat removal.
Furthermore, triple seals ensure no leakage, so you can drive with confidence in knowing that optimal performance is guaranteed every time.
For unbeatable ignition reliability, choose the NGK 3787 ILTR6A-8G Laser Iridium Spark Plug!
- Spark plug gap: 0.043" (1.10 mm);
- Change interval: 75,000 miles;
- Longevity: 100,000 miles;
- Ground electrode: Platinum;
- Center electrode: Iridium;
- Resistor value: 5k Ohm;
- Hex Size: 9/16" (14mm);
- Fitment: 2012-2021 Mazda 3 SKYACTIV engines; Mazda SKYACTIV-G 2.0 engine; Mazda SKYACTIV-G 2.5 engine.
Take your performance to the next level with NGK 94124 ILKAR7L11 Laser Iridium Spark Plug. This durable spark plug is constructed with a fine wire iridium tipped center electrode and fine wire platinum tipped ground electrode for improved ignitability and long service life. Its trivalent metal plating offers superior anti-corrosion and anti-seizing properties, while its corrugated ribs prevent flashover.
This spark plug also features a pure alumina silicate ceramic insulator for superior strength, more significant heat transfer, and a copper core to assist heat removal. Moreover, triple seals are included to prevent leakage.
Upgrade your engine’s performance today with an NGK Laser Iridium spark plug!
- Performance
- Longevity
- Reliability
- Superior ignitability
- Price
2014-2018 Mazda 3 Spark Plugs
- Spark plug gap: 0.043" (1.10 mm);
- Change interval: 75,000 miles;
- Longevity: 100,000 miles;
- Ground electrode: Platinum;
- Center electrode: Iridium;
- Resistor value: 5k Ohm;
- Hex Size: 9/16" (14mm);
- Fitment: 2012-2021 Mazda 3 SKYACTIV engines; Mazda SKYACTIV-G 2.0 engine; Mazda SKYACTIV-G 2.5 engine.
Take your performance to the next level with NGK 94124 ILKAR7L11 Laser Iridium Spark Plug. This durable spark plug is constructed with a fine wire iridium tipped center electrode and fine wire platinum tipped ground electrode for improved ignitability and long service life. Its trivalent metal plating offers superior anti-corrosion and anti-seizing properties, while its corrugated ribs prevent flashover.
This spark plug also features a pure alumina silicate ceramic insulator for superior strength, more significant heat transfer, and a copper core to assist heat removal. Moreover, triple seals are included to prevent leakage.
Upgrade your engine’s performance today with an NGK Laser Iridium spark plug!
- Performance
- Longevity
- Reliability
- Superior ignitability
- Price
2019-2022 Mazda 3 Spark Plugs
- Spark plug gap: 0.043" (1.10 mm);
- Change interval: 75,000 miles;
- Longevity: 100,000 miles;
- Ground electrode: Platinum;
- Center electrode: Iridium;
- Resistor value: 5k Ohm;
- Hex Size: 9/16" (14mm);
- Fitment: 2012-2021 Mazda 3 SKYACTIV engines; Mazda SKYACTIV-G 2.0 engine; Mazda SKYACTIV-G 2.5 engine.
Take your performance to the next level with NGK 94124 ILKAR7L11 Laser Iridium Spark Plug. This durable spark plug is constructed with a fine wire iridium tipped center electrode and fine wire platinum tipped ground electrode for improved ignitability and long service life. Its trivalent metal plating offers superior anti-corrosion and anti-seizing properties, while its corrugated ribs prevent flashover.
This spark plug also features a pure alumina silicate ceramic insulator for superior strength, more significant heat transfer, and a copper core to assist heat removal. Moreover, triple seals are included to prevent leakage.
Upgrade your engine’s performance today with an NGK Laser Iridium spark plug!
- Performance
- Longevity
- Reliability
- Superior ignitability
- Price
- Spark plug gap: 0.043" (1.10 mm);
- Change interval: 50,000 miles;
- Longevity: 50,000 miles;
- Ground electrode: Nickel;
- Center electrode: Iridium;
- Hex Size: 9/16" (14mm);
- Features: Special Gasket.
- Fitment: 2012-2021 Mazda 3 SKYACTIV engines; Mazda SKYACTIV-G 2.0 engine; Mazda SKYACTIV-G 2.5 engine; Hyundai 2.0 engine.
The NGK 93501 LKAR7BIX-11S Iridium IX Spark Plug is designed for performance enthusiasts offering superior reliability and durability.
The spark plug's fine wire center electrode ensures a consistently stable spark. The iridium alloy provides an extremely high melting point that's perfect for today's high-tech, high-performance engines.
Plus, its trivalent metal plating provides superior anti-corrosion and anti-seizing properties. The corrugated ribs help to prevent flashover, while the pure alumina silicate ceramic insulator gives superior strength and heat transfer capabilities.
A copper core aids in heat removal, and triple seals serve as extra protection against leakage.
This NGK IX Iridium Series spark plug will keep your car running like new!
- Price
- Reliability
- Longevity
How Often Should Spark Plugs Be Changed Mazda 3?
Mazda spark plugs are designed to last up to 75,000 miles. However, depending on your driving habits, you may need to replace them sooner. If you do a lot of stop-and-go driving or drive in dusty conditions, you may need to replace your spark plugs more often.
The best way to find the correct spark plug for your Mazda is to consult its owner’s manual, which recommends a specific type of plug.
Notice
Avoid using a wire brush when cleaning iridium plugs. The delicate coating on both the platinum and iridium alloy tips quickly becomes damaged if not handled with care.
If you’re not comfortable installing the spark plug yourself, you can take it to a mechanic or Mazda dealership, and they will be able to install it for you.
Types Of Spark Plugs
- Iridium
- Platinum
- Copper core
When choosing the best spark plugs for Mazda, it is important to consider the engine type in your vehicle. You will want to choose platinum or iridium spark plugs if you have a newer Mazda with a Skyactiv engine. These types of spark plugs offer better performance and fuel economy.
Copper-core spark plugs may be the best option if you have an older Mazda or one with a less powerful engine. These types of spark plugs are less expensive and can provide outstanding performance in most cases. Another factor to consider when choosing the best spark plugs for Mazda is the age and condition of your vehicle.
