Autolite 3922 Spark Plug

Autolite 3922 Copper Resistor Spark Plug

Autolite 3922 is a copper resistor spark plug built for quick starts, steady idle quality, and smooth acceleration. It uses an OE-style form, fit, and function approach for a wide range of foreign and domestic applications, including select Honda Civic, Chevrolet Sonic, and Porsche 911 fitments.

Key Features

• Copper center electrode core for reliable ignition performance
• Nickel center and ground electrode tip materials
• 4000 ohm resistor design for ignition noise suppression
• Pre-gapped to 0.040 in. / 1.00 mm
• Standard 14 mm thread diameter with 5/8 in. hex size
• Flat seat, mid-projection insulator, and removable nut terminal
• Single-ground-electrode design with tapered ground electrode tip

Product Details

This Autolite Copper Resistor Spark Plug is engineered as an OE-style replacement for everyday drivability and dependable ignition performance. The copper core supports efficient spark transfer, while the resistor design helps reduce electrical interference in the ignition system. With a 0.750 in. reach, ceramic insulator, and standard regular center electrode design, Autolite 3922 is built to match common factory-style spark plug requirements across many applications. This part number is used in fitments such as 2006-2011 Honda Civic, 2012-2019 Chevrolet Sonic, and 1991-1997 Porsche 911 applications that call for this plug specification.

Autolite’s Copper Spark Plug line focuses on OE form, fit, and function for a broad range of vehicles. For buyers searching for an Autolite 3922 spark plug, copper resistor spark plug replacement, or an OE-style ignition tune-up part, this product line is positioned for straightforward service replacement on many import and domestic engines.

This part cross-references Champion Spark Plug 340 for the same application.

Common Issues This Part Can Address

• Hard starting caused by worn or fouled spark plugs
• Rough idle from degraded ignition performance
• Slow throttle response during acceleration
• Ignition noise concerns in resistor-equipped systems
• Maintenance replacement for factory-style spark plug service intervals

Installation Notes and Tips

• Verify the vehicle’s required gap specification before installation; some listed applications use a different preset gap than the plug’s 0.040 in. pre-gap.
• Confirm thread diameter, reach, seat type, and terminal style match the engine specification.
• Use the vehicle service manual for torque and gap verification procedures.
• Check the ignition system condition if misfire symptoms remain after replacement.

Quality Assurance

Autolite supplies ignition products to the automotive aftermarket and original equipment manufacturers, with a focus on OE-style fitment and consistent manufacturing standards.