Autolite AP5426 Spark Plug

Reliable Ignition Performance for Chrysler, Dodge, Jeep, and Volkswagen

The Autolite Platinum Spark Plug AP5426 is engineered to deliver consistent ignition performance for select Chrysler, Dodge, Jeep, and Volkswagen vehicles. Designed with durable materials and precise specifications, this spark plug supports efficient combustion and engine reliability.

• Platinum center electrode tip and core for enhanced durability
• Tapered ground electrode tip with nickel core for stable spark delivery
• Extra-long ceramic insulator for improved heat dissipation
• Resistor type with 4000 ohm resistance to reduce electrical noise
• Standard 0.982 inch (25.0 mm) reach and 14.0 mm thread diameter
• Hex size 5/8 inch (16 mm) for easy installation
• Pre-gapped at 0.050 inch (1.30 mm) for optimal spark gap

About the Autolite Platinum Spark Plug Line

The Platinum Spark Plug line from Autolite focuses on combining platinum materials in both the center electrode tip and core to provide longer service life and consistent ignition. This line is designed to meet or exceed OEM specifications, making it suitable for vehicles requiring reliable secondary ignition components. The AP5426 model benefits from this technology, offering a balance of durability and performance for compatible vehicles.

Detailed Product Description

The AP5426 spark plug features a platinum center electrode tip and core, which enhances wear resistance and maintains a stable spark over time. The ground electrode is constructed with a nickel core and a tapered tip design, promoting efficient spark formation and combustion. The extra-long ceramic insulator improves heat dissipation and electrical insulation, reducing the risk of misfires. With a resistor type design and 4000 ohm resistance, this spark plug minimizes electromagnetic interference with vehicle electronics. The tapered seat type and standard reach of 0.982 inches (25.0 mm) ensure proper fitment and sealing in the combustion chamber. The spark plug is pre-gapped at 0.050 inches (1.30 mm), matching factory specifications for optimal ignition performance.

Compatible Vehicles and Common Applications

• Chrysler Caravan, Grand Caravan, Pacifica, Town & Country, Voyager
• Dodge Caravan, Grand Caravan, Journey
• Jeep Wrangler
• Volkswagen Routan
• Addresses ignition issues such as misfires, rough idling, poor fuel economy, hard starts, and engine hesitation

Installation Notes and Tips

Ensure the spark plug is installed with the correct torque to avoid damage to the tapered seat and maintain proper sealing. Verify the pre-gap size before installation, although the AP5426 comes pre-gapped at 0.050 inches (1.30 mm). Use a 5/8 inch (16 mm) socket for installation and confirm compatibility with your vehicle’s engine specifications. Regular inspection and replacement according to the vehicle manufacturer’s maintenance schedule will help maintain optimal engine performance.

Quality Assurance and Warranty

Autolite Platinum Spark Plugs are manufactured to meet strict quality standards, ensuring reliable ignition performance and durability. The AP5426 is designed to comply with OEM specifications for the listed Chrysler, Dodge, Jeep, and Volkswagen models. Warranty coverage details should be confirmed with the vehicle manufacturer or authorized Autolite distributor.