Description:
The Autolite APP26 Double Platinum Spark Plug is engineered to deliver reliable ignition performance, reduced misfires, and extended service life. Featuring a platinum-to-platinum firing design with platinum pads on both the center and ground electrodes, this spark plug helps resist gap erosion and maintain consistent spark delivery over time.
The copper core center electrode improves heat transfer and helps maintain proper operating temperatures, reducing fouling and supporting stable combustion. A yttrium-enhanced ground electrode provides superior durability under high temperatures and pressure, making it ideal for distributorless ignition system (DIS) engines. The high alumina ceramic insulator ensures excellent thermal conductivity and dielectric strength, while the multi-rib insulator design helps prevent flash-over for dependable ignition performance.
Autolite double platinum spark plugs are designed to deliver long-lasting performance and reliable ignition for many gasoline engine applications.
Features:
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Platinum-to-platinum firing design reduces gap erosion and extends service life
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Copper core center electrode improves heat transfer and reduces fouling
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Yttrium-enhanced ground electrode improves durability under high heat and pressure
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High alumina ceramic insulator provides strong insulation and heat dissipation
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Multi-rib insulator helps prevent flash-over for consistent ignition performance
Product Specifications:
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Part number: APP26
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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 electrode quantity: 1
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Ground electrode design: Standard
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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: 10.95 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: 0.889 mm
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Manufacturer heat range: 7
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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