Description:
The ACDelco R45XLS Professional Conventional Spark Plug is designed to provide reliable ignition performance and efficient engine operation. Built with a copper core center electrode, this spark plug offers excellent heat transfer to help maintain proper operating temperatures and improve durability.
A Black Onyx coating helps protect the plug against corrosion, while the ribbed suppressor seal helps prevent spark flashover and misfires. Nickel-chrome alloy sheathing helps protect the center electrode from corrosion and wear, supporting long-term reliability and consistent ignition performance.
ACDelco Professional spark plugs are premium aftermarket replacements engineered to meet expectations for fit, form, and function across a wide range of vehicles. They are also suitable for select marine engine applications.
Features:
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Copper core center electrode improves heat transfer and durability
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Black Onyx coating helps reduce corrosion
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Ribbed suppressor seal helps prevent spark flashover and misfires
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Nickel-chrome alloy sheathing protects the center electrode from corrosion
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Resistor design helps reduce electrical interference
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Premium aftermarket replacement designed for reliable ignition performance
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Suitable for automotive and select marine engine applications
Product Specifications:
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Part number: R45XLS
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Product line: ACDelco Professional
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Center electrode core material: Copper
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Center electrode tip material: Nickel alloy
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Center electrode design: Standard
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Ground electrode configuration: Standard
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Ground electrode quantity: 1
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Thread diameter: 14 mm (0.55 in)
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Seat type: Flat
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Reach: 0.75 in (19.05 mm)
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Hex size: 13/16 in (20.62 mm)
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Resistor type: Yes
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Approximate resistor value: 2–20 kΩ
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Pre-gap size: 0.04 in (1.02 mm)
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Manufacturer heat range: 5
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Insulator material: ES703
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Insulator height: 2.23 in (56.52 mm)
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Washer type: Crush washer
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Washer included: Yes
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Electrical terminal type: Non-removable nut
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Package quantity: 1
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Country of origin: Mexico