Autolite XP26 Spark Plug

Autolite Iridium Spark Plug XP26 Overview

The Autolite Iridium Spark Plug XP26 is engineered for reliable ignition performance in a wide range of vehicles including Buick, Chevrolet, Ford, and Jeep models. Designed with advanced materials and precision construction, this spark plug supports efficient combustion and consistent engine operation.

• Iridium center electrode tip for enhanced durability and ignition
• Taper cut ground electrode tip with platinum material for improved spark efficiency
• Copper core center electrode for optimal conductivity
• Resistor type with 4000 ohms resistance to reduce electrical noise
• Metric thread size M14 x 1.25 with a 5/8 inch hex size for secure fitment
• Ceramic insulator with 62.7 mm insulator height for heat resistance
• Non-removable nut electrical terminal type for stable connection
• Performance grade spark plug with a manufacturer heat range of 7

Iridium Spark Plug Brand Line Details

The Autolite Iridium Spark Plug line focuses on delivering long-lasting ignition components that combine iridium and platinum materials. This combination enhances electrode wear resistance and maintains consistent spark quality over time. The XP26 model benefits from this technology, providing improved combustion stability and engine responsiveness for compatible vehicles.

Technical Description and Features

The XP26 spark plug features a fine wire center electrode made of iridium, known for its high melting point and durability, which supports precise ignition timing and fuel efficiency. The ground electrode uses a taper cut design with a platinum tip, reducing electrode wear and ensuring a stable spark. The copper core center electrode enhances thermal conductivity, helping to dissipate heat effectively. The ceramic insulator with a 62.7 mm height offers excellent electrical insulation and heat resistance, suitable for performance applications. The resistor type design with 4000 ohms resistance minimizes electromagnetic interference, protecting vehicle electronics.

Compatible Vehicles and Applications

• Designed for use in Buick, Cadillac, Chevrolet, Chrysler, Dodge, Ford, GMC, Jeep, Lincoln, Mercury, Oldsmobile, Plymouth, and Pontiac vehicles
• Compatible with models such as Camaro, Mustang, Bronco, Corvette, Grand Marquis, and many others
• Ideal for secondary ignition systems requiring a performance-grade spark plug
• Suitable for engines needing a heat range 7 spark plug with metric thread size M14 x 1.25

Installation Notes and Tips

• Ensure the spark plug gap matches vehicle specifications before installation
• Use a torque wrench to tighten the spark plug to manufacturer recommended torque to avoid damage
• Check for proper thread engagement and avoid cross-threading during installation
• Inspect ignition wires or coils for wear when replacing spark plugs

Quality Assurance and Warranty

Autolite manufactures the XP26 spark plug to meet strict quality standards, ensuring consistent performance and durability. The use of iridium and platinum materials contributes to extended service life. While specific warranty details are not provided, Autolite products typically adhere to industry quality controls and reliability benchmarks.