What size socket is need for removel and inserting these

I believe a 5/8 spark plug socket.

Hola el anuncio dice 1 spark plug, no dice paquete de 6, en las respuestas dice que es un paquete de 6 bujias, porque no se específica en el anuncio?

Hola! El paquete trae 6 bujías. Puedes comprarlo con confianza, son 100% genuinas.

is this the correct size for a 2002 chevrolet trailblazer lt 4.2?

Most likely. The Trailblazer and the GMC Envoy have the same engine, and it fit the Envoy engine that I have. Be careful not to cross thread however. That is easy to do and anti-seize on the threads is highly recommended.

Why this side say do not fit on my chevrolet trailblazer ltz 4.2 l6 year 2003?

41-103 is CORRECT number for your vehicle. You can buy either iridium plugs (which is what I purchased in Oct 2017, and they still work fine) or you can buy the cheap original equipment plugs. But the 41-103 will work fine. Safe motoring

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ACDelco 41-103 Professional Iridium Spark Plug (6 Pack)

Product ID: 33729063

Details

Brand
ACDelco
Core Material
Iridium
Thread Size
14mm
Top Material Type
Nickel
Vehicle Service Type
UTV

⏳Extended lifespan for long-term reliability

⚡Iridium core for superior ignition

🔧Vehicle-specific fit for hassle-free installation

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Description

⚡ Ignite your drive with pro-grade power and reliability!

SIX PACK VALUE - Keep your ride running smooth with spares always on hand.
PRECISION IRIDIUM CORE - Experience unmatched ignition efficiency and engine responsiveness.
SEAMLESS COMPATIBILITY - Designed for a wide range of UTVs ensuring perfect fit every time.
EFFORTLESS INSTALLATION - Spend less time in the garage and more on the road.
LONG LASTING DURABILITY - Engineered to deliver consistent performance mile after mile.

The ACDelco 41-103 Professional Iridium Spark Plug 6-pack features a durable iridium core for superior ignition and extended lifespan. Designed specifically for UTVs with a 14mm thread size, these plugs ensure a perfect fit and smooth engine performance. Backed by high customer ratings and easy installation, this set offers excellent value and reliability for professional-grade vehicle maintenance.

Specifications

ASIN	B01JQ2L5DS
Automotive Fit Type	Vehicle Specific Fit
Best Sellers Rank	#47,928 in Automotive ( See Top 100 in Automotive ) #312 in Automotive Replacement Spark Plugs
Brand	ACDelco
Brand Name	ACDelco
Compatible with Vehicle Type	UTV
Core Material	Iridium
Customer Reviews	4.7 out of 5 stars 914 Reviews
Manufacturer	ACDelco
Manufacturer Part Number	41-103
Number of Items	6
OEM Equivalent Part Number	41-103
Thread Size	14mm
Top Material Type	Nickel
UPC	707773689622
Unit Count	6 Count
Vehicle Service Type	UTV

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€ 121.74

Duties & taxes included

In stock

Sold byAmazon AustriaDelivered 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 Austria.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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