Autolite AP5224 Spark Plug

Autolite Platinum Spark Plug AP5224

Autolite Platinum Spark Plug AP5224 is an OE-style replacement spark plug built for consistent ignition performance across a wide range of import and domestic vehicles. It uses platinum on the center electrode for added durability, along with a 0.044 in. pre-gap and resistor design for stable operation in everyday driving.

Compatible With applications such as Honda Civic, Honda Accord, Volkswagen Jetta, Jeep Grand Cherokee, and Dodge Ram 1500, this plug is a direct-fit option for many vehicles that call for a 14 mm thread, 5/8 in. hex, flat seat, and long-projection insulator.

Key Features

• Platinum center electrode tip and core material for improved wear resistance versus standard copper plugs
• Pre-gapped at 0.044 in. (1.10 mm) for many listed applications
• Resistor type spark plug with 4000 resistance rating
• Nickel ground electrode with tapered tip design
• Ceramic insulator with long projection profile
• OE form, fit, and function for many foreign and domestic vehicles

Product Line Details

The Autolite Platinum Spark Plug line is positioned as an OE-style ignition solution for drivers who want a durable replacement spark plug without changing the original engine setup. AP5224 follows common factory-style dimensions and specifications, making it a practical choice for routine tune-ups on vehicles that specify platinum plugs.

Detailed Description

Autolite AP5224 is engineered for reliable spark delivery, easier starting, quicker throttle response, and improved fuel economy when installed in the correct application. The platinum center electrode helps maintain consistent performance over time, while the nickel ground electrode and resistor construction support steady ignition in daily-use engines. This part number is referenced for a broad range of vehicles, including Honda Civic, Volkswagen Jetta, and Jeep Compass applications, and it is also listed for several Dodge, Acura, BMW, and Toyota models.

This part cross-references Anchor (e.g., 3173, 3318) for the same application.

What It Helps Address

• Hard starting caused by worn spark plug electrodes
• Rough idle from inconsistent ignition firing
• Reduced acceleration response from degraded spark output
• Fuel economy loss related to aging plugs
• Misfire symptoms tied to plug wear or incorrect gap condition

Installation Notes and Fitment Tips

• Fits 2006-2011 Honda Civic, N/A; verify the listed gap requirement of 0.040 in. (1.0 mm) or 0.044 in. (1.1 mm) by application.
• Fits 2001-2015 Volkswagen Jetta, N/A; some applications use a preset 0.028 in. (0.7 mm) gap, so confirm the engine specification before installation.
• Fits 2005-2010 Jeep Grand Cherokee, N/A; confirm the correct gap and engine code before service.
• Fits 1997-2007 Dodge Ram 1500, N/A; several model years in this range call for a 0.040 in. (1.0 mm) gap.
• Fits 2007-2017 Jeep Compass, N/A; check the vehicle’s service information for the exact gap requirement.

Always verify the engine’s specified spark plug gap before installation, since listed fitments include multiple gap settings depending on year and engine configuration. Use the vehicle service manual for final confirmation on torque and gap specification.

Quality Assurance

Autolite is a long-standing supplier of ignition products for the automotive aftermarket and original equipment channels. AP5224 is built to OE-style dimensions and specifications to support consistent fitment across the listed applications.