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- USA
- CAN
Ships within 48 hours · Estimated delivery Jul 12 - Jul 17
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Description
Fits Various vehicles Iridium Pro Spark Plugs-14x19x16mm-Heat Range 9 - Z1003101APR 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, can dissipate heat more easily, is better
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, 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 9 spark plug (Similar: Bosch 3, Brisk 10, Denso 27, and NGK 9)
- 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
- 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: 19mm
- Thread diameter: 14mm
- Hexagon: 16mm
- Seat Type: Gasket
- Install Torque: 25 Nm
- Made in the EU
FEATURES
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
4.1 ★★★★★
Based on 1568 reviews
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Product Reviews
★★★★★ 5
a perfect manual toothbrush
Color: Mint
this is definitely my favorite toothbrush i've ever used. even though it's just a manual one, it's still my favorite. it's aesthetically pleasing and the bristles are perfectly soft so it doesn't hurt my gums (i naturally have sensitive and fragile gums). i love caps that covers bristles; it's a must if you keep your toothbrush in the bathroom and this toothbrush comes with a cap that clicks open instead of one that slides on and off, pretty unique and much more hygienic as it keeps the germs out much better.
i can't comment on the capabilities of the charcoal since i just received this but i can say that when i used it, i didn't feel any grit at all, so i believe boka's claim that the charcoal is soft enough to be safe for teeth (most of the time, charcoal is too gritty for teeth and ruins the enamel) the toothbrush is also pretty hefty so it's not cheap! paired with the boka toothpaste, my teeth feel so clean. now off to buy the whitening strips, floss, and mouthwash tablets from my new favorite brand!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 28, 2024
★★★★★ 5
Excellent
Color: Multi Color
I really like this product , it is plush means more fibers , it is not harsh plastic to blister your gums , for what it is very good price and quality.
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Reviewed in the United States on April 3, 2026
★★★★★ 5
Excellent toothbrushes!
Color: Mint
I absolutely love these toothbrushes. They clean so well and there is just this perfect bristle hardness to it so that my teeth and gums feel like they’ve gone to the spa.
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Reviewed in the United States on January 25, 2026
★★★★★ 4
Super Soft & High Quality – Great Toothbrushes!
Color: Multi Color
Love these toothbrushes! The bristles are extra soft and comfortable, making them gentle on gums but still effective for cleaning. The overall quality is excellent, and they’re a solid pick for both adults and kids. Highly recommend for everyday brushing!
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Reviewed in the United States on September 22, 2025
★★★★★ 5
Lovely dense and soft.
Color: Multi Color
Perfect toothbrush.
I’ve always loved a super stiff toothbrush, it just felt right, like scrubbing the grime off. BUT, I ended up scrubbing my gums into recession. So I’ve had to buy soft toothbrushes.
For years I’ve hated them. Waterpik, floss then brush and the brushing felt always felt like I wasn’t doing anything. I disliked everything about the bristles.
These were bought on a whim, they’re pretty and have four which is how many I needed to replace everyone’s toothbrushes.
I LOVE these. They’re definitely soft, in a way I haven’t felt before and can’t really articulate, but they’re also dense. There are a lot of bristles. The bristles feel like I’m getting my teeth very clean, like they’re getting into all the little areas they need to.
The only issue I have is they squeak a little and that can be annoying.
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Reviewed in the United States on October 12, 2025
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