Autolite Spark Plug , #386

Autolite Spark Plug , #386

The AUTL386 Autolite Spark Plug (#386) is a reliable copper-core spark plug designed to deliver strong ignition performance and dependable engine starts across a wide range of small engines and equipment. The copper core center electrode improves heat transfer and helps resist fouling, while the high nickel alloy center and ground electrodes extend plug life under normal operating conditions. Built with a high-alumina multi-rib ceramic insulator for strength and electrical insulation, and a nickel-plated shell for corrosion resistance, this spark plug is engineered for consistent performance and durability. In short, it’s a dependable ignition component that helps your engine fire up and stay running the way it should.

Country of Origin
Varies by production batch

Key Features / Specifications

• Model / Part Number: AUTL386
• Brand: Autolite®
• Product Type: Copper spark plug
• Center Electrode Design: Standard
• Center Electrode Tip Material: Nickel
• Ground Electrode Tip Design: Standard
• Ground Electrode Tip Material: Nickel
• Thread Diameter: 18 mm
• Reach: 13 mm
• Hex Size: 7/8 in
• Seat Type: Flat seat
• Pre-Gap Size: 0.6 mm
• Manufacturer Heat Range: 6
• Resistance: 5000 ohms
• Center Electrode Projection: Short projection
• Construction: Copper core center electrode with high-nickel alloy electrodes
• Shell Finish: Nickel-plated for corrosion resistance
• Insulator: High alumina multi-rib ceramic for strength and thermal conductivity
• Warranty: 2-year limited warranty

Ideal For

• Small engines and equipment requiring Autolite #386 spark plug
• Reliable ignition and quick engine starts
• Applications where copper-core plugs provide strong performance and heat control
• Maintenance and tune-ups for outdoor power equipment and small engines
• Anyone who appreciates a spark plug that fires reliably every time instead of making the engine crank like it’s still waking up.