Description:
The Autolite AP5143 Platinum Spark Plug is engineered to deliver reliable ignition performance, smoother starts, and improved engine efficiency. Its platinum center electrode firing tip helps prevent gap erosion, ensuring consistent spark delivery and longer service life compared to conventional spark plugs.
A copper core center electrode improves heat transfer and helps maintain proper operating temperatures, reducing the risk of fouling. The high alumina ceramic insulator provides superior electrical insulation and thermal conductivity, helping maintain stable combustion performance. A multi-rib insulator design helps prevent flash-over, while the nickel-plated shell resists corrosion and extends durability.
Autolite platinum spark plugs are designed to meet performance expectations for many gasoline engines, providing dependable ignition and efficient engine operation.
Features:
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Platinum center electrode firing tip helps resist gap erosion for longer service life
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Copper core center electrode improves heat transfer and fouling resistance
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Multi-rib ceramic insulator helps prevent flash-over for consistent spark delivery
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High alumina ceramic insulator enhances strength and thermal conductivity
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Nickel-plated shell helps resist corrosion for extended durability
Product Specifications:
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Part number: AP5143
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Brand: Autolite
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Product type: Platinum spark plug
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Center electrode core material: Copper
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Center electrode tip material: Platinum
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Ground electrode core material: Nickel
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Ground electrode tip material: Nickel
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Ground configuration: Single
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Ground electrode quantity: 1
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Thread diameter: 14 mm
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Seat type: Tapered
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Washer included: No
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Reach: 0.809 in
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Hex size: 16 mm
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Resistor type: Yes
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Resistance: 4000 ohms
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Pre-gap size: 0.054 in
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Manufacturer heat range: 10
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Insulator material: Ceramic
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Center electrode design: Standard
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Center electrode projection: Long projection
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Electrical terminal type: Non-removable nut
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Skirt: Yes
