Autolite APP26 Double Platinum Spark Plug

The Autolite APP26 Double Platinum Spark Plug delivers premium ignition performance with advanced platinum-to-platinum technology designed to extend service life and improve engine reliability. This spark plug features platinum tips on both the center and ground electrodes, providing superior resistance to gap erosion and significantly reduced misfires compared to standard copper plugs.

Key Features:

• Platinum-to-platinum design virtually eliminates gap erosion for longer plug life
• Yttrium-enhanced ground electrode delivers superior heat transfer and durability under high temperatures and pressure
• High-nickel chrome alloy side electrode maintains precision gap throughout service life
• Full copper core center electrode improves heat dissipation and resistance to fouling
• High alumina ceramic insulator provides optimum thermal conductivity and dielectric strength
• Multi-rib insulator design prevents electrical flash-over
• 14mm thread diameter with 0.460-inch reach and tapered seat design
• Heat range 6 for versatile engine compatibility
• 5/8-inch hex size for standard spark plug sockets
• Built-in resistor reduces electromagnetic interference

Ideal for distributorless ignition system (DIS) engines, the APP26 provides superior performance over conventional copper and single platinum plugs. Autolite has been manufacturing quality spark plugs since 1936, making it one of the most trusted brands for OE replacement needs. Backed by a 5-year limited warranty for added confidence.