Description

Genuine NGK LMAR7AIX-P Iridium Max Spark Plug Specifications, Features & Applications

The NGK LMAR7AIX-P is a premium spark plug from NGK’s advanced Iridium IX / Iridium Max series, designed for modern high-performance engines. It features an ultra-fine iridium alloy center electrode that delivers superior ignition performance, greater fuel efficiency, and longer service life compared to conventional plugs. The “P” in the model number signifies that this is a protruding type plug, enhancing combustion efficiency in specific engine designs.

 

Specifications:

• Brand: NGK

• Part Number: LMAR7AIX-P

• Type: Iridium Max (Iridium IX series)

• Center Electrode Material: Iridium alloy

• Ground Electrode Material: Nickel alloy with tapered cut

• Electrode Gap: 0.8 mm (may vary per OEM spec)

• Thread Diameter: 12 mm

• Thread Reach: 26.5 mm

• Hex Size: 14 mm

• Heat Range: 7 (NGK scale) — medium heat range for balanced performance

• Resistor: Yes

• Protruding Electrode: Yes (P-type)

 

Key Features:

• Ultra-fine Iridium Center Electrode
  Provides superior ignitability and ensures a consistent spark even under extreme conditions.

• Longer Lifespan
  Iridium alloy increases durability and extends plug life far beyond that of traditional nickel plugs.

• Improved Fuel Efficiency
  Enhances combustion efficiency, which can contribute to better fuel economy.

• Superior Anti-Fouling
  Better performance in stop-and-go traffic and urban driving conditions.

• High-Temperature Performance
  Maintains stable performance at high RPMs and temperatures, suitable for performance engines.

 

Applications — Compatible Car Engines:

The NGK LMAR7AIX-P is commonly used in various modern European and Japanese engines, particularly those found in turbocharged or high-efficiency gasoline engines that require long-reach 12 mm plugs.

Some example vehicles and engines:

 

LMAR7AIX-P Iridium Maxspark plug is perfect replacement for ILMAR7A8 LMAR7CI-8, VSUEH22, ZUE22HPR8. It is also compatible for Nissan Dayz.