Are these spark plugs copper ones?

It's been a while since installation. Seems they were copper core, but don't quote me on that please ! OEM type plug for my neighbor's 2006 Jeep Liberty 3.7L. I've always had good service from NGK plugs for many years now. Hope that helps.

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6 pc NGK V-Power Spark Plugs compatible with Jeep Liberty 3.7L V6 2002-2012

6 pc NGK V-Power Spark Plugs compatible with Jeep Liberty 3.7L V6 2002-2012

Product ID: 39786370

Details

Brand
Sixity Auto
Core Material
Copper
Thread Size
M14x1.5
Top Material Type
Ceramic Metal
Vehicle Service Type
Car Truck

⚡Advanced electrode design for sharper spark

🔧Vehicle-specific M14x1.5 thread fit

♻️Reduces emissions & misfires

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Description

⚡ Ignite your Jeep’s true potential with NGK V-Power Spark Plugs!

ECO FRIENDLY DRIVE - Reduces emissions and misfires, helping your Jeep Liberty run cleaner and smoother on every journey.
PERFECT FIT GUARANTEE - Engineered specifically for Jeep Liberty 3.7L V6 (2002-2012) with exact M14x1.5 thread size for hassle-free installation.
TOP RATED PERFORMANCE - Backed by 501 glowing reviews and a 4.8-star rating, these spark plugs are the go-to choice for serious drivers.
DURABILITY YOU CAN TRUST - Robust shell construction protects against damage, ensuring long-lasting spark reliability.
PRECISION IGNITION POWER - Advanced center and ground electrodes deliver faster, stronger combustion for peak engine performance.

This 6-piece set of NGK V-Power Spark Plugs is engineered for Jeep Liberty 3.7L V6 models from 2002 to 2012, featuring advanced electrode technology for efficient combustion, reduced emissions, and fewer misfires. With a durable design and precise M14x1.5 thread fit, these plugs ensure reliable ignition and long-lasting performance, making them a top-rated choice among automotive enthusiasts.

Specifications

ASIN	B01N6UIB28
Automotive Fit Type	Vehicle Specific Fit
Best Sellers Rank	#197,395 in Automotive ( See Top 100 in Automotive ) #1,229 in Automotive Replacement Spark Plugs
Brand	Sixity Auto
Brand Name	Sixity Auto
Compatible with Vehicle Type	Car, Truck
Core Material	Copper
Customer Reviews	4.8 out of 5 stars 501 Reviews
Gap Size	0.04 Inches
Item Weight	10.56 ounces
Manufacturer	Sixity Auto
Manufacturer Part Number	4024190487
Model Number	4024190487
Number of Items	1
Thread Size	M14x1.5
Top Material Type	Ceramic, Metal
Unit Count	6 Count
Vehicle Service Type	Car, Truck

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₩106743

Duties & taxes included

In stock

Sold byAmazon South KoreaDelivered 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 Korea.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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