Description:
The Autolite 458 Copper Spark Plug is engineered to deliver dependable ignition performance, quick engine starts, and consistent power output. Its copper core center electrode improves heat transfer, helping maintain proper operating temperatures while reducing the risk of fouling.
High nickel alloy center and ground electrodes provide extended durability and reliable spark delivery. The high alumina multi-rib ceramic insulator enhances electrical insulation and heat dissipation, supporting stable performance in demanding engine conditions. A corrosion-resistant nickel-plated shell protects the spark plug from rust and wear, ensuring long-term durability.
Autolite copper spark plugs are designed to meet the performance needs of many gasoline engines, making them a dependable replacement option for regular maintenance.
Features:
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Copper core center electrode improves heat transfer and fouling resistance
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High nickel alloy center and ground electrodes extend spark plug service life
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Multi-rib ceramic insulator improves electrical insulation and durability
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Nickel-plated shell helps resist corrosion and increase longevity
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Designed for quick starts and reliable ignition performance
Product Specifications:
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Part number: 458
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Brand: Autolite
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Product type: Copper spark plug
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Center electrode core material: Copper
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Center electrode tip material: Nickel
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Ground electrode core material: Nickel
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Ground electrode tip material: Nickel
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Ground electrode configuration: Single
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Ground electrode quantity: 1
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Thread diameter: 14 mm
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Thread size: M14 × 1.25
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Seat type: Flat
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Washer type: Flat washer
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Washer included: Yes
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Reach: 0.374 in
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Hex size: 13/16 in
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Resistor type: No
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Resistance: 1 ohm
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Pre-gap size: 0.8 mm
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Manufacturer heat range: 2
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Insulator material: Ceramic
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Center electrode design: Standard
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Center electrode projection: Short projection
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Center electrode insulator tip projection: 0.039 in
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Electrical terminal type: Non-removable nut
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Skirt: Yes