What is the socket size of the spark plug?

You will use either a 16mm deep socket or 5/16" spark plug socket for installation. Be certain to verify each spark plug gap at .044" before you install.

2012 Hyundai Elantra—Amazon says it fits this car but has anyone tried it?

According to the NGK Part Finder, it only works for the L4 1.8L Engine. You need the ZFR5FIX-11 for the 2.0 Engine. The OE Part for the 2.0 is IZFR5L11

Are these better than the original honda crv (2011) spark plugs (denso sxu22hcr11s)?

I think so. I have iridium plugs in all my cars.

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LKR7DIX-11S Iridium IX Spark Plug (93175 Iridium Ix), 4 Pack

Product ID: 287101830

Details

Brand
NGK
Core material
Iridium
Thread size
5/8 inch
Top material type
iridium
Vehicle service type
Improved for

⚡0.6mm laser-welded iridium tip

🔥High melting point iridium alloy

🛡️Triple gasket seal prevents gas leaks

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R1507

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Description

⚡ Ignite your ride with precision and power — don’t get left behind!

HEAT WEAR RESISTANCE - Iridium alloy’s extreme melting point ensures durability under intense heat and electrical stress.
CORROSION SEIZE PROOF - Trivalent metal plating protects against corrosion and seizing, extending spark plug lifespan.
PRECISION IGNITION POWER - Ultra-fine 0.6mm iridium tip delivers a stable, high-energy spark for peak engine performance.
OPTIMIZED COMBUSTION SEAL - Triple gasket seal and longer insulator nose eliminate combustion gas leaks and fouling for consistent power.
ENHANCED THROTTLE RESPONSE - Tapered ground electrode minimizes quenching effect, giving you sharper acceleration and control.

The NGK LKR7DIX-11S Iridium IX Spark Plug 4-pack is engineered for performance enthusiasts seeking extreme ignitability and durability. Featuring a laser-welded 0.6mm iridium tip, high melting point alloy, and advanced sealing technology, it ensures superior throttle response, anti-fouling, and corrosion resistance—perfect for high-performance engines demanding reliability and power.

Specifications

ASIN	B07FP6KFLT
Automotive Fit Type	Universal Fit
Best Sellers Rank	#62,651 in Automotive ( See Top 100 in Automotive ) #352 in Automotive Performance Spark Plugs
Brand Name	NGK
Compatible with Vehicle Type	Improved, Superior, designed specifically for the performance enthusiast
Core Material	Iridium
Customer Reviews	4.7 4.7 out of 5 stars (2,102)
Gap Size	0.04 Inches
Global Trade Identification Number	00087295831755
Included Components	Spark Plug (4)
Item Type Name	Spark Plug (93175 Iridium Ix )
Item Weight	181 g
Manufacturer	NGK
Manufacturer Part Number	93175
Model Number	LKR7DIX-11S
OEM Equivalent Part Number	Cross-reference is for reference only. Confirm compatibility with your vehicle. Omnicraft QSP8
Thread Size	5/8 inch
Top Material Type	iridium
UPC	087295831755
Unit Count	4 Count

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R1507

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In stock

Sold byAmazon South AfricaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to South Africa.

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