Autolite APP5263 Spark Plug

Reliable Ignition with Autolite Double Platinum Spark Plug APP5263

The Autolite Double Platinum Spark Plug APP5263 delivers consistent ignition performance for a wide range of vehicles including Buick, Chevrolet, Dodge, and Jeep models. Designed with durable platinum electrodes and a tapered ground electrode tip, this spark plug supports efficient combustion and long service life.

• Double platinum center and ground electrode tips for enhanced durability
• Tapered ground electrode design with nickel core for reliable spark delivery
• Standard center electrode design with a 0.040 inch pre-gap size
• Resistor type spark plug with 4000 ohm resistance to reduce electrical noise
• Ceramic mid-projection insulator for improved heat dissipation
• 16 mm (5/8 inch) hex size and 25 mm (0.982 inch) reach for precise fitment
• Tapered seat type ensuring secure installation

About the Autolite Double Platinum Spark Plug Line

The Double Platinum Spark Plug line from Autolite features spark plugs with platinum on both the center and ground electrodes. This design enhances electrode durability and maintains consistent spark performance over time. The APP5263 model benefits from this technology, providing stable ignition and extended service intervals for compatible vehicles.

Technical Details and Compatibility

The APP5263 spark plug incorporates a platinum center electrode and a platinum ground electrode tip, both supported by a nickel core for strength. The tapered ground electrode tip design improves spark exposure and combustion efficiency. With a 0.040 inch pre-gap and a 4000 ohm resistor, this spark plug reduces radio frequency interference while maintaining optimal ignition. The ceramic mid-projection insulator aids in heat management, contributing to engine stability.

Compatible Vehicles and Applications

• Designed for use in Buick, Cadillac, Chevrolet, Chrysler, Dodge, GMC, Hummer, Isuzu, Jeep, Oldsmobile, Pontiac, Saab, Saturn, and Suzuki vehicles
• Compatible with models such as Chevrolet Camaro, Dodge Charger, Jeep Grand Cherokee, Buick LaCrosse, and GMC Canyon
• Suitable for secondary ignition systems requiring a 14 mm thread diameter and 25 mm reach

Common Issues Addressed by Autolite APP5263

• Misfires caused by worn or damaged spark plugs
• Reduced fuel efficiency due to inconsistent ignition
• Engine hesitation or rough idling
• Electrical interference affecting onboard electronics
• Premature electrode wear in high-mileage vehicles

Installation Notes and Tips

Ensure the spark plug gap is set to the specified 0.040 inch before installation if adjustment is necessary. Use a torque wrench to tighten the spark plug to the manufacturer’s recommended specifications to avoid damage to the tapered seat. The 16 mm hex size allows for standard spark plug socket compatibility. Inspect the ignition system components for wear during replacement to maintain optimal performance.

Quality Assurance and Warranty

Autolite spark plugs are manufactured to meet OEM specifications and undergo rigorous quality control. The APP5263 model includes a resistor to minimize electrical noise and is constructed with durable materials such as platinum and ceramic for longevity. Warranty coverage details should be confirmed with the vehicle manufacturer or authorized Autolite distributor.