APR IRIDIUM PRO SPARK PLUGS - HEAT RANGE 10 (EA825, EA839, 9A2 ENGINES) (Z1004081)

Refresh your ignition system in one shot with APR Iridium Pro Spark Plugs and pair with APR Ignition Coils - engineered to work together for a stronger, more consistent spark. Each is a direct-fit upgrade designed to support smoother idle, sharper throttle response, and reliable performance under heat and load-whether you’re stock or running higher boost and power upgrades.

BUILT FOR PERFORMANCE: APR Iridium Pro Spark Plugs are made from high-grade materials, engineered to enhance ignition and combustion, and provide smooth, consistent engine power for daily drivers, dedicated racing enthusiasts, and everyone in between.

A DIRECT-FIT UPGRADE: Upgrade your OEM spark plug on stock vehicles and on tuned engines with higher boost or upgraded power components, APR spark plugs are engineered to manage increased demands. Direct replacement for stock OEM parts 0PB905612, 0P2905601/A, 06M905606F, 9A790560100, & 9A790560101.

IRIDIUM BENEFITS: One of the strongest materials used for spark plugs, Iridium is used to withstand high temps, is less corrosive, requires less voltage to product a strong spark, and helps deliver reliable power.

HIGH-TEMP DURABILITY (HEAT RANGE 10): Featuring a copper core construction paired with an iridium electrode, APR’s high heat dispersal “cold plugs” regulate combustion temperatures. This means consistent performance, even under extreme conditions.

COMPATIBILITY: Compatible Audi A6 A7 A8 Q7 Q8 RS Q8 RS5 RS6 RS7 S4 S5 S6 S7 SQ5 SQ7 & SQ8; Bentley Bentayga & Continental Flying Spur; Lamborghini Urus; Porsche 718, 911, Cayenne, Macan, & Panamera.

MORE POWER WITH APR: Pair APR spark plugs with APR ignition coils for maximized performance in your Audi EA839, EA825 or Porsche 9A2 engines. Z1004081 works with Ignition Coil Part Numbers MS100208, MS100192, & MS100252.

TRUSTED IN THE U.S. FOR OVER 25 YEARS: Founded in 1997, APR is Headquartered in Opelika, Alabama and has become a global leader in quality and reliable performance aftermarket products for Volkswagen, Audi, Porsche, and other vehicles. Includes: One iridium spark plug (Z1004081).

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

TÜV / ABE available upon request

We currently ship within Europe only.

If a part is not available, we will contact you with an estimated wait time.

If you wish to return a product after receiving it, we offer a 14-day returns policy. Custom-made products are not eligible for return, and return shipping is at the customer's expense. Full delivery and returns terms are on the “Delivery Information” page — the link is at the bottom of the page.

Products come with a warranty, detailed in a certificate included in the box.

To make a valid claim, you must prove the damage was not caused by you and that the warranty certificate is valid.

Full terms are on the “Terms & Conditions” page — the link is at the bottom of the page.