8 Pack Genuine GM ACDelco Spark Plugs R42XLS ps

The GM ACDelco R42XLS Spark Plug is engineered to provide reliable ignition, improved fuel efficiency, and long-lasting performance in GM vehicles. Featuring a copper core and nickel alloy electrode, it ensures consistent spark, effective heat dissipation, and resistance to fouling. Ideal for engines requiring extended-reach spark plugs, the R42XLS delivers smooth operation and reliable cold-start performance for enhanced engine efficiency.

Features & Benefits:

🔧 Copper core ensures strong spark and efficient heat transfer

🔧 Nickel alloy electrode resists fouling and corrosion

🔧 Extended-reach design for specific cylinder head configurations

🔧 Pre-gapped for quick and precise installation

Specifications:

Brand & Part Number: ACDelco R42XLS

Material: Copper Core with Nickel Alloy Electrode

Thread Size: 14mm

Reach: 0.71 in. (18mm)

Gap: Pre-gapped (~0.035 in.)

Ensure reliable ignition and smooth performance with ACDelco R42XLS spark plugs!

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