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

Product ID: 76990459

Details

Brand
NGK
Core Material
Iridium
Thread Size
5/8 inch
Top Material Type
Metal
Vehicle Service Type
Car Truck

⚡0.6mm ultra-fine iridium tip for extreme ignitability

🔥Iridium alloy withstands high heat & electrical wear

🔧Triple gasket seal prevents combustion gas leakage

B/.109

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Description

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

ENDURANCE ENGINEERED - Iridium alloy’s high melting point ensures durability for 40,000-60,000 miles of peak performance.
LEAK PROOF RELIABILITY - Triple gasket seal and corrugated insulator ribs eliminate flashover and combustion gas leaks.
PRECISION IGNITION POWER - Ultra-fine 0.6mm iridium tip delivers lightning-fast throttle response and acceleration.
CORROSION SEIZE RESISTANT - Trivalent metal plating protects against rust and seizing for hassle-free maintenance.
PERFECT FIT PROVEN QUALITY - Vehicle-specific design with 5/8 inch hex size, backed by NGK’s trusted warranty and top-tier customer ratings.

The NGK LKR7DIX-11S Iridium IX Spark Plug 4-pack features a laser-welded 0.6mm iridium tip for superior ignitability and throttle response. Designed for high-performance engines, it offers exceptional durability with a high melting point iridium alloy and triple gasket sealing to prevent combustion leaks. With corrosion-resistant plating and a vehicle-specific fit, these spark plugs deliver reliable, long-lasting performance backed by NGK’s industry-leading reputation.

Specifications

ASIN	B07FP6KFLT
Automotive Fit Type	Vehicle Specific Fit
Best Sellers Rank	#1,916 in Automotive ( See Top 100 in Automotive ) #5 in Automotive Replacement Spark Plugs
Brand Name	NGK
Compatible with Vehicle Type	Car, Truck
Core Material	Iridium
Customer Reviews	4.6 4.6 out of 5 stars (2,310)
Gap Size	0.04 inches
Global Trade Identification Number	00087295831755
Included Components	Spark Plug (4)
Item Highlight	Ultra-fine 0.6mm iridium tip sharpens throttle response and acceleration. 40,000-60,000 mile fine-wire performance.
Item Type Name	Spark Plug (93175 Iridium Ix )
Item Weight	6.4 ounces
Manufacturer	NGK
Manufacturer Part Number	93175
Manufacturer Warranty Description	Includes manufacturer provided warranty
Model Number	LKR7DIX-11S
Number of Items	4
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	Metal
UPC	087295831755
Unit Count	1 Count

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