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Description
APR Iridium Pro Spark Plugs (Set of 8) - 12x26.5x14mmAPR Iridium Pro Spark Plugs are the excellent upgrade for tuned engines. Our spark plugs are made from Iridium, which is one of the strongest materials you can use in this type of application. They run cooler, resist preignition, last longer than other materials with higher melting points, and even require less voltage to produce a strong spark. The electrode is harder and stronger than other materials and with its copper core can dissipate heat more
APR Iridium Pro Spark Plugs are the excellent upgrade for tuned engines. Our spark plugs are made from Iridium, which is one of the strongest materials you can use in this type of application. They run cooler, resist preignition, last longer than other materials with higher melting points, and even require less voltage to produce a strong spark. The electrode is harder and stronger than other materials and with its copper core can dissipate heat more easily, is better protected from melting, cracking, and other limitations found with standard plugs. These plugs were designed for use on tuned and higher output vehicles that benefit from a plug cooler than the factory heat range. They are great for high boost, high cylinder pressure, high cylinder temperatures, and high power situations, and they pair nicely with a set of APR ignition coils, where applicable.
Features:
- Heat range 10 spark plug (Similar: Bosch 2, Brisk 8, Denso 31, and NGK 10)
- 152% higher melting point than silver, 125% higher than copper, and 38% higher than platinum.
- Stronger than copper and platinum
- Designed for high performance / tuned vehicle applications
- Non-projected insulator design
- Lower required supplied voltage
- Cooler operating temperature than stock plugs
- Optimized electrode design for hard to ignite fuels, such as ethanol
- Resists preignition better than stock plugs
- Perfect for upgraded APR vehicles
- An excellent match for APR ignition coils
- Thread reach: 26.5mm
- Thread diameter: 12mm
- Hexagon: 14mm
- Seat Type: Gasket
- Install Torque: 17 Nm
- Insulator Material: Ceramic
- Supplied Gap: .55mm +- .05mm
- 2 steps colder than OEM (4.0T EA825)
- 1 step colder older than OEM (2.9T/3.0T EA829, 2.0T/2.5T/3.0T/3.7T 9A2)
- Made in the EU
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Kit Includes:
- (8) Z1004081 - APR Iridium Pro Spark Plugs - 12x26.5x14mm (APR)
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Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.8 ★★★★★
Based on 1442 reviews
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Product Reviews
★★★★★ 4
Good supplement
In order to get the recommended dose, you need to take a lot of these in a day. However, they are easy to swallow and I trust this brand. If you're looking for a good calcium supplement, this is a good one.
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Reviewed in the United States on May 29, 2023
★★★★★ 5
Third party tested!
It's important to know it's 3rd party tested!
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Reviewed in the United States on April 8, 2026
★★★★★ 5
fast service
product as described fast service
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Reviewed in the United States on March 19, 2026
★★★★★ 5
This brand has been good for me overall but.....
I do find it harder to swallow a capsule, than a large pill. I agree that is odd but it is happening to me. So I went with the larger pill. The capsules tend to stick to my throat even when drinking water first.
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Reviewed in the United States on October 5, 2025
★★★★★ 5
Pampers Always!
Size: Size 4, Unit Count: 92
Pampers has been the choice for all three of my babies over the years. So very rarely leak and super comfy! May be a bit more pricey but WORTH IT. These are not as nice of quality as pampers swaddlers but still great and cheaper.
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Reviewed in the United States on March 11, 2026
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