APR Iridium Pro Spark Plugs - Heat Range 10 (EA825, EA839, 9A2 Engines)

Mfg Part #

Z1004081

NP#

APRZ1004081

Brand

Fits 2018 to 2027 Audi A6 allroad, A6 Quattro, A7 Sportback and 18 more models, and 3 more makes. See every vehicle

• 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