Denso 5352 Spark Plug

Denso Iridium Power Spark Plug for Honda Civic

Denso Iridium Power spark plug 5352 is built for drivers who want precise ignition performance and stable combustion response. It is a direct-fit spark plug for 2006-2011 Honda Civic applications and uses a fine 0.4 mm iridium center electrode to support efficient spark delivery.

Key Features

• Fits 2006-2011 Honda Civic, N/A
• Iridium Power line from Denso for performance-focused ignition service
• 0.4 mm iridium center electrode for a fine-tip spark design
• Tapercut and U-groove ground electrode tip design
• 1.1 mm pre-gap size for OE-style service replacement
• 14.0 mm thread diameter, 19.0 mm reach, flat seat
• 5000 ohm resistance for ignition system compatibility
• Cross-reference: DENSO Auto Parts IK20G

Product Details

Denso 5352 is part of the Iridium Power product line, which focuses on fine-wire electrode construction for consistent ignition performance in modern engines. This spark plug uses an iridium center electrode paired with a copper core and a nickel ground electrode core, along with a tapercut, U-groove ground tip design to promote a concentrated spark kernel. For Honda Civic owners searching for a Denso 5352 spark plug, an IK20G cross-reference, or a 2006-2011 Honda Civic iridium spark plug, this part matches the listed application and specifications.

Common Issues This Part Can Address

• Rough idle caused by worn spark plug electrodes
• Hard starting from degraded ignition performance
• Misfire conditions related to spark plug wear
• Reduced throttle response from inconsistent combustion
• Maintenance replacement for high-mileage ignition service

Installation Notes and Tips

Verify the thread diameter, reach, seat type, and pre-gap size against the engine specification before installation. Use proper spark plug removal and installation procedures to avoid thread damage in the cylinder head. Confirm the ignition system is in good condition and inspect related components if misfire symptoms are present. For fitment searches, this part is listed for 2006-2011 Honda Civic, N/A.

Quality Assurance

Denso manufactures this spark plug with an iridium center electrode and OE-style dimensional specifications for the listed application. The Iridium Power line is engineered around fine-tip electrode construction and controlled resistance values to support reliable ignition service in compatible Honda Civic models.