4163 Autolite Spark Plugs Spark Plug OE Replacement

Experience unparalleled ignition performance with the 4163 Autolite Spark Plugs. With over a century of automotive excellence, Autolite has established itself as a trusted name in ignition products, delivering high-quality solutions that meet or exceed Original Equipment (OE) standards. Whether you drive a Japanese, European, or Korean vehicle, or need plugs for lawn and garden equipment, we have you covered.

Key Features:

• Copper-Glass Seal: Ensures a gas-tight, leak-proof connection, maintaining full voltage at the spark gap.
• Multi-Rib Insulator: Reduces the risk of flash-over, enhancing overall safety and performance.
• One-Piece Terminal Post: Provides added strength and durability for long-lasting use.
• Cold-Formed Steel Shell: Ensures precision and resilience in all driving conditions.
• Full Copper Core Electrode: Delivers superior performance, ensuring quick starts, improved fuel economy, and smooth acceleration.
• RFI Resistor: Minimizes radio frequency interference and reduces electrode erosion, leading to a longer lifespan.

Specifications:

• Reach: 3/4 Inch
• Resistor: Yes
• Electrode Type: OEM
• Core Material: Copper
• Insulator Type: Projected
• Thread Size: 12 Millimeter
• Seat Type: Gasket
• Wrench Diameter: 11/16 Inch Hex

With a limited 2-year warranty, the Autolite 4163 Spark Plugs are designed to deliver reliable performance for every engine. Choose Autolite for your ignition needs and experience the difference in quality and performance!