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NGK 93911-4PK LKR7AIX Iridium IX Spark Plug, Box of 4

Q: What is the correct torque on these?

Sorry I don't know, but like with any spark plug, just snug them down. They aren't going anywhere

Q: Are these plugs pre gaped?

You must always check the gap on spark plug replacements against recommended gap for that specific plug. Even plugs that are pre-gapped can have discrepancies due to shipping and handling. - worked at a auto parts store for years

Q: Will this fit perfect in my 2012 c250 coupe?

Not sure but it fit perfectly in my s550 benz.

Q: Do i have to game these? what to gap with? and what size socket is required?

You do not have to gap them. It is a 5/8 deep socket.

4.6/5

Product ID: 382920793

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Details

Brand
NGK
Core material
Iridium
Top material type
Metal
Vehicle service type
Motorcycle
Global Trade Identification Number

⚡0.6mm Iridium tip for stable spark

🔥High melting point for extreme durability

🛡️Triple gasket seal prevents gas leaks

Frequently Bought Together

NGK 93911 LKR7AIX Iridium IX Spark Plug, Pack of 4

NGK 93911 LKR7AIX Iridium IX Spark Plug

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Description

⚡ Ignite your drive with NGK Iridium IX – where performance meets precision!

ENDURANCE UNDER FIRE - Iridium alloy withstands extreme heat and electrical wear, engineered for high-performance engines.
LEAK PROOF RELIABILITY - Triple gasket seal and corrugated insulator ribs eliminate combustion gas leakage and flashover.
THROTTLE READY RESPONSE - Enhanced ignitability improves throttle response, giving you that edge on every drive.
PRECISION IGNITION POWER - Laser-welded fine Iridium tip delivers unmatched spark consistency for peak engine performance.
CORROSION RESISTANT FINISH - Trivalent metal plating ensures superior anti-corrosion and anti-seizing for long-lasting use.

The NGK 93911-4PK LKR7AIX Iridium IX Spark Plug set features a 0.6mm laser-welded iridium tip for consistent, stable sparks, designed to enhance throttle response and engine performance. Built with a high melting point iridium alloy and triple gasket sealing, these plugs resist fouling, corrosion, and combustion gas leaks, making them ideal for high-performance engines seeking durability and reliability.

Specifications

Manufacturer	NGK
Brand	NGK
Model	93911-4PK
Product Dimensions	9.4 x 2.39 x 8.43 cm; 181.44 g
Item model number	93911-4PK
Manufacturer part number	93911-4PK
Item Weight	181 g

Have a Question? See What Others Asked

What is the correct torque on these?

Are these plugs pre gaped?

Will this fit perfect in my 2012 c250 coupe?

Do i have to game these? what to gap with? and what size socket is required?

Common Questions

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¥25981

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