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

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 Iridium fine tip for stable spark

🔥High melting point Iridium alloy for extreme durability

🔧Triple gasket seal prevents combustion gas leaks

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VT14784

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Details

Brand
NGK
Core Material
Iridium
Thread Size
5/8 inch

Description

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

ENDURANCE ENGINEERED - Iridium alloy withstands extreme heat and wear, ensuring longevity beyond 80k miles.
FLASHOVER PREVENTION - Corrugated insulator ribs reduce flashover risk, maintaining reliable starts every time.
PRECISION IGNITION POWER - Laser-welded 0.6mm Iridium tip delivers unmatched spark consistency for peak engine performance.
OPTIMIZED COMBUSTION SEAL - Triple gasket design eliminates gas leakage, maximizing fuel efficiency and throttle response.
CORROSION SEIZE RESISTANT - Trivalent metal plating protects against rust and seizing, simplifying maintenance.

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 fine Iridium tip and a high melting point alloy, these plugs deliver consistent, stable sparks and resist wear for over 80,000 miles. Advanced triple gasket sealing and corrugated insulator ribs prevent combustion gas leaks and flashover, optimizing throttle response and engine efficiency. Trusted by professionals and backed by NGK’s warranty, this set is a top choice for reliable, high-performance ignition.

Specifications

ASIN	B07FP6KFLT
Automotive Fit Type	Vehicle Specific Fit
Best Sellers Rank	#2,379 in Automotive ( See Top 100 in Automotive ) #7 in Automotive Replacement Spark Plugs
Brand	NGK
Brand Name	NGK
Compatible with Vehicle Type	Car, Truck
Core Material	Iridium
Customer Reviews	4.7 out of 5 stars 2,117 Reviews
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	0.4 Pounds
Manufacturer	NGK
Manufacturer Part Number	93175
Manufacturer Warranty Description	Includes manufacturer provided warranty
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	Metal
UPC	087295831755
Unit Count	4.0 Count
Vehicle Service Type	Car, Truck

Reviews

B**E

21.04.2026

K**X

22.03.2026

J**L

13.04.2026

J**S

27.04.2026

C**L

10.02.2026

N**K

13.04.2026

H**Y

16.05.2025

D**E

19.02.2026

S**Y

18.04.2026

G**N

31.03.2026

P**U

13.07.2024

B**S

14.03.2026

G**.

24.07.2023

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