Product Type: Spark Plug MR15YIR-1-4 PC
Item Code: BRISK-CAR-P46 MR15YIR-1-4 PC
Brand: BRISK
Material: Iridium
Size: Long Thread
Made In Japan
Color: Silver

Upgrade your engine’s performance with Brisk Iridium Premium Plus Spark Plugs – designed for modern, high-efficiency, and highly stressed engines. This set of 4 spark plugs delivers superior ignition efficiency, longer lifespan, and lower voltage requirements, making it ideal for unleaded and alternative fuel cars. Built with an Iridium core center electrode and Yttrium alloy earth electrode, these spark plugs reduce misfires, improve cold starts, and extend the ignition coil’s life.

"High-Performance Design – Iridium core with Yttrium alloy for superior durability and efficiency.
Lower Voltage Requirement – Ensures easier cold starts and prevents misfires.
Center electrode with iridium contact, ground electrode made of a yttrium alloy, less voltage, larger spark gap, specially tuned distance of electrodes
Long Lifespan – Lasts up to 100,000 km (60,000 miles) and for LPG / GPL / CNG / car gas up to max. 45,000 km
Fast Self-Cleaning – Cylindrical insulator tip quickly removes carbon deposits.
Corrosion Protection – Nickel/Zinc coating enhances durability.
Universal Fit – Ideal for modern, high-compression, and alternative fuel engines.
Made in Czech Republic – Precision-engineered for premium performance.
Compatible with (1): Bosch, 0242129514, 9620, VR8NII35U, CCJM, 9029, A11-LKAR6DI, DENSO, 3439, FXE20HR11, S4
Compatible with (2): NGK, 9029, DILKAR6A11, 22401-EW61B, 22401-EW67B, 22401-JA01B, 22401-JD01B
Technical Specifications:
Thread Diameter: 12mm
Thread Reach: 26.1mm (1"")
Hexagon Size: 14mm (9/16"")
Seat Type: Gasket
Design: Iridium/Yttrium
Resistor: Yes
Projected Tip: Yes
Heat Range: 15"