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: 237364806

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Details

Brand
NGK
Core material
Iridium
Gap size
0.04 inches
Thread size
5/8 inch
Top material type
Metal

⚡0.6mm laser-welded iridium tip for stable spark

🔥High melting point iridium alloy for extreme durability

🛡️Triple gasket seal eliminates combustion gas leakage

Description

⚡ Ignite Performance, Own the Road.

ENDURANCE UNDER FIRE - Built to withstand extreme heat and wear thanks to a high melting point iridium alloy—engineered for peak performance longevity.
ANTI FOULING INNOVATION - Longer insulator nose and corrugated ribs prevent fouling and flashover, keeping your engine running cleaner, longer.
CORROSION SEIZE PROOF - Trivalent metal plating delivers superior anti-corrosion and anti-seizing protection—because your ride deserves the best.
FLAWLESS COMBUSTION SEAL - Triple gasket technology ensures zero combustion gas leaks, maximizing engine efficiency and power.
PRECISION IGNITION MASTERY - Experience lightning-fast throttle response with a fine 0.6mm iridium tip engineered for consistent sparks.

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, triple gasket sealing, and corrosion-resistant plating, these spark plugs deliver improved throttle response, superior anti-fouling, and long-lasting reliability for high-performance engines.

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The product exactly matches the description. Very satisfied with my purchase.

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Smooth transaction and product arrived in perfect condition.

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Manufacturer	NGK
Brand	NGK
Model	Spark Plug
Product Dimensions	14.81 x 10.16 x 2.54 cm; 181.44 g
Item model number	LKR7DIX-11S
Exterior	Painted
Manufacturer part number	93175
Position	Centre
Item Weight	181 g

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

Details

Description

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