Are these plugs pre-gapped ?

They should be. THOUGH, and I stress, it wouldn't hurt to check them prior to installing them. I've purchased pre-gapped plugs before and they were off just a bit. 39 vs 44 as an example.

What is the expected milage for these?

40-50k miles (more expensive OE 9029 are rated 80-100k miles). Ref. ngksparkplugsdotcom

Are these 5/8 spark plugs?

These sparkplugs are 14mm or 9/16. Socket fits snug with either one you wish to go with . Strongly suggest the magnetic spark plug socket .

Will this fit a 2015 Nissan rouge sv?

Amazon site should tell if they fit.

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NGK LKAR6AIX-11 Iridium IX Spark Plug (91187 Iridium Ix), 4 Pack

Product ID: 88466429

Details

Brand
NGK
Core Material
Iridium
Thread Size
14mm
Top Material Type
Metal
Vehicle Service Type
Car Truck

⚡0.6mm laser-welded iridium tip

🔥High melting point iridium alloy

🛡️Triple gasket seal prevents gas leaks

€ 78.36

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Description

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

RACE READY DURABILITY - Iridium alloy withstands extreme heat and electrical wear, engineered for high-performance engines.
THROTTLE RESPONSE BOOST - Optimized electrode design minimizes quenching, enhancing throttle sensitivity and acceleration.
PRECISION IGNITION POWER - Ultra-fine 0.6mm iridium tip delivers a consistently stable spark for peak engine performance.
CORROSION SEIZE RESISTANT - Trivalent metal plating ensures superior anti-corrosion and anti-seizing for long-lasting reliability.
FOULING FLASHOVER DEFENSE - Longer insulator nose and corrugated ribs prevent fouling and flashover, keeping your engine clean and efficient.

The NGK LKAR6AIX-11 Iridium IX Spark Plug 4-pack is engineered for performance enthusiasts seeking extreme ignitability and durability. Featuring a 0.6mm laser-welded iridium tip, tapered ground electrode, and triple gasket seal, it delivers stable sparks, improved throttle response, and superior anti-fouling. Its high melting point iridium alloy and trivalent metal plating provide exceptional heat resistance and corrosion protection, making it ideal for modern high-performance engines.

Specifications

ASIN	B07FP438JV
Automotive Fit Type	Vehicle Specific Fit
Best Sellers Rank	#11,686 in Automotive ( See Top 100 in Automotive ) #52 in Automotive Replacement Spark Plugs
Brand Name	NGK
Compatible with Vehicle Type	Car, Truck
Core Material	Iridium
Customer Reviews	4.8 4.8 out of 5 stars (1,751)
Gap Size	0.03 inches
Global Trade Identification Number	00087295811870
Included Components	Spark Plug (4)
Item Highlight	Replaces XP5684. 40k-60k mileage rated.
Item Type Name	Spark Plug (91187 Iridium Ix )
Item Weight	6.4 ounces
Manufacturer	NGK
Manufacturer Part Number	LKAR6AIX-11
Manufacturer Warranty Description	Includes manufacturer provided warranty
Model Number	LKAR6AIX-11
Number of Items	4
OEM Equivalent Part Number	LKAR6AIX-11
Thread Size	14mm
Top Material Type	Metal
UPC	087295811870
Unit Count	1 Count

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€ 78.36

Duties & taxes included

In stock

Sold byAmazon GreeceDelivered 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 Greece.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Abdullah B.

Great price for an authentic product. Fast international shipping too!

3 weeks ago

Ayesha M.

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

5 days ago

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