Description:
The Autolite APP5263 Double Platinum Spark Plug is engineered for dependable ignition performance, reduced misfires, and long-lasting durability. Its platinum-to-platinum firing design places platinum pads on both the center and ground electrodes, helping minimize gap erosion and maintain consistent spark delivery throughout the life of the plug.
A copper core center electrode improves heat transfer to maintain proper engine operating temperatures and resist fouling. The yttrium-enhanced ground electrode increases durability under high temperatures and pressure, making this spark plug especially effective in distributorless ignition system (DIS) engines. A high alumina ceramic insulator provides excellent thermal conductivity and dielectric strength, while the multi-rib insulator design helps prevent flash-over for reliable ignition performance.
Autolite double platinum spark plugs are built to provide extended service life and consistent ignition performance for many gasoline engine applications.
Features:
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Platinum-to-platinum firing design reduces gap erosion and extends spark plug life
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Copper core center electrode improves heat transfer and fouling resistance
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Yttrium-enhanced ground electrode improves durability under high heat and pressure
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High alumina ceramic insulator enhances insulation and thermal conductivity
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Multi-rib insulator helps prevent flash-over for consistent spark delivery
Product Specifications:
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Part number: APP5263
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Brand: Autolite
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Product type: Double 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: Platinum
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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: 24.94 mm
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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: 1.016 mm
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Manufacturer heat range: 11
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Insulator material: Ceramic
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Center electrode design: Standard
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Center electrode projection: Mid projection
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Electrical terminal type: Non-removable nut
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Skirt: Yes
