Denso 3353 Spark Plug

Reliable Ignition Performance for Lexus GS300 and IS300

The Denso Iridium Long Life 3353 spark plug is engineered to provide consistent ignition and durability for Lexus GS300 and IS300 models. Designed with advanced materials and precise specifications, this spark plug supports efficient combustion and engine performance.

• Iridium center electrode tip for enhanced durability and stable spark
• Double platinum chip ground electrode tip for improved wear resistance
• Copper core center electrode for optimal conductivity
• Standard ground configuration with nickel ground electrode core
• Pre-gap size of 1.1 mm for precise ignition timing
• Flat seat type with 14 mm thread diameter and 19 mm reach
• Hex size of 16.0 mm for easy installation
• Manufacturer heat range rating of 16 for balanced thermal performance

Detailed Features of the Denso Iridium Long Life 3353 Spark Plug

The Denso Iridium Long Life spark plug line is designed to extend service intervals and maintain ignition efficiency over time. The 3353 model incorporates an iridium center electrode tip, which offers a high melting point and resistance to wear, ensuring consistent spark delivery. The double platinum chip on the ground electrode tip further enhances durability by reducing electrode erosion. The copper core center electrode improves electrical conductivity, contributing to better combustion and fuel efficiency. With a pre-gap size of 1.1 mm and a flat seat design, this spark plug ensures proper fit and ignition characteristics for Lexus GS300 and IS300 engines.

Compatible Vehicles and Applications

This spark plug is specifically compatible with the following Lexus models:

• Lexus GS300
• Lexus IS300

It is suitable for addressing common ignition-related issues such as:

• Engine misfires or rough idling
• Reduced fuel efficiency
• Difficulty starting the engine
• Loss of power during acceleration
• Increased exhaust emissions

Installation Notes and Tips

• Ensure the spark plug gap is set to 1.1 mm before installation if not pre-gapped
• Use a torque wrench to tighten the spark plug to manufacturer specifications to avoid damage
• Inspect the spark plug threads and cylinder head for debris before installation
• Replace spark plugs in sets to maintain consistent engine performance

Quality Assurance and Warranty

Denso manufactures the Iridium Long Life 3353 spark plug to meet strict quality standards, ensuring reliable performance and longevity. While specific warranty details may vary, Denso products typically come with a limited warranty covering defects in materials and workmanship. Refer to the product documentation or manufacturer for exact warranty terms.