Autolite 3922 Spark Plug

Reliable Ignition Performance for Select Vehicles

The Autolite Copper Resistor Spark Plug 3922 is engineered to deliver consistent ignition performance for a range of vehicles including Audi S4, Honda Civic, Porsche Boxster, and Jeep Grand Cherokee. Designed with durable materials and precise specifications, this spark plug supports efficient combustion and engine reliability.

• Resistance: 4000 ohms for effective electrical noise suppression
• Ground Electrode Tip: Tapered nickel design for durability
• Center Electrode Core: Copper for enhanced conductivity
• Electrical Terminal: Removable nut type for secure connection
• Pre-Gap Size: 0.040 inches (1.00 mm) for optimal spark gap
• Hex Size: 5/8 inch (16 mm) for standard installation tools
• Thread Diameter: 14.0 mm with 0.750 inch (19.5 mm) reach
• Seat Type: Flat for proper sealing
• Insulator: Ceramic mid projection for heat resistance

About the Autolite Copper Resistor Spark Plug Line

The Copper Resistor Spark Plug line from Autolite combines copper core technology with resistor features to reduce electromagnetic interference while maintaining strong ignition capabilities. The 3922 model incorporates these design elements to provide reliable spark delivery and compatibility with various vehicle makes and models.

Technical Details and Application

The Autolite 3922 spark plug features a copper core center electrode that enhances electrical conductivity, improving ignition efficiency. The tapered nickel ground electrode tip and core material provide durability and resistance to wear. With a resistance rating of 4000 ohms, this spark plug helps suppress radio frequency interference, protecting sensitive electronic components in vehicles like the Mercedes-Benz V8 Vantage and Chevrolet Cruze. The removable nut electrical terminal allows for secure and straightforward connection during installation. Its flat seat and 14 mm thread diameter with a 0.750 inch reach ensure proper fitment in compatible engines.

Compatible Vehicles and Common Issues Addressed

• Compatible with Audi S4, Porsche Cayman, Honda S2000, Jeep Grand Cherokee, and Buick Encore
• Helps resolve misfires and rough idling
• Improves cold start performance
• Reduces electromagnetic interference affecting vehicle electronics
• Supports consistent fuel combustion and engine efficiency

Installation Notes and Tips

Ensure the spark plug gap is set to the specified 0.040 inch (1.00 mm) pre-gap before installation. Use a 5/8 inch (16 mm) socket wrench to tighten the spark plug to the manufacturer’s torque specifications. The flat seat design requires proper seating to avoid compression leaks. The removable nut terminal facilitates easy connection to ignition wires. Always verify compatibility with your vehicle’s make and model prior to installation.

Quality Assurance and Warranty

Autolite spark plugs are manufactured to meet OEM standards for fit, form, and function. The Copper Resistor Spark Plug 3922 undergoes rigorous quality control to ensure durability and performance. While specific warranty details are not provided here, Autolite products typically come with manufacturer-backed warranties covering defects in materials and workmanship.