Denso 3433 Spark Plug

Overview of Denso Iridium Long Life Spark Plug 3433

The Denso Iridium Long Life spark plug 3433 is engineered for reliable ignition performance in a range of vehicles including Chrysler, Dodge, Honda, Jeep, Mercedes-Benz, Mitsubishi, Ram, Subaru, and Suzuki models. Designed with advanced materials and precise specifications, this spark plug supports efficient combustion and long service intervals.

• Iridium center electrode tip for enhanced durability and ignition
• Platinum chip ground electrode tip for stable spark and 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 consistent spark gap
• Flat seat type with 14.00 mm thread diameter and 26.50 mm reach
• Hex size of 16.0 mm for installation compatibility
• Manufacturer heat range rating of 20
• Resistance of 5000 ohms to reduce electrical noise

Detailed Features and Specifications

This Denso spark plug 3433 features an iridium center electrode tip, which provides a fine electrode for improved ignition and longer lifespan compared to conventional plugs. The copper core center electrode enhances thermal conductivity, helping to dissipate heat effectively. The ground electrode incorporates a platinum chip tip and a nickel core, combining durability with consistent spark performance. The standard ground configuration with a single ground electrode ensures compatibility with many engine designs.

The spark plug has a pre-gap size of 1.1 mm, optimized for stable ignition across various operating conditions. Its flat seat design and 14.00 mm thread diameter make it suitable for direct replacement in compatible engines. The 26.50 mm reach and 16.0 mm hex size facilitate proper fitment and ease of installation. With a manufacturer heat range of 20 and a resistance of 5000 ohms, this spark plug balances heat dissipation and electrical noise suppression.

About the Iridium Long Life Product Line

The Denso Iridium Long Life line focuses on delivering spark plugs with extended durability and consistent ignition performance. Utilizing iridium and platinum materials in electrode tips, this product line is designed to withstand high temperatures and resist electrode wear. The 3433 spark plug benefits from this technology, making it suitable for vehicles requiring reliable secondary ignition components over longer service intervals.

Compatible Vehicles and Applications

This spark plug 3433 is compatible with a variety of makes and models, including but not limited to:

• Chrysler Aspen, 1500, Ram 1500, Ram 2500
• Dodge Dakota, Durango
• Honda Civic
• Jeep Commander, Grand Cherokee
• Mercedes-Benz CL55 AMG
• Mitsubishi Mirage, Mirage G4
• Subaru B9 Tribeca, Baja, Forester, Impreza, Legacy, Outback, WRX, WRX STI
• Suzuki Grand Vitara

Common Issues Addressed by Denso Spark Plug 3433

• Misfires and rough idling due to worn or fouled spark plugs
• Reduced fuel efficiency from inconsistent ignition
• Difficulty starting engines in cold or variable conditions
• Engine hesitation or loss of power under load
• Excessive electrode wear leading to ignition failure

Installation Notes and Tips

• Verify correct spark plug gap of 1.1 mm before installation
• Use a 16 mm socket wrench for proper torque application
• Ensure flat seat contact for optimal sealing and heat transfer
• Apply anti-seize compound sparingly on threads if recommended by vehicle manufacturer
• Follow vehicle-specific torque specifications to avoid damage

Quality Assurance and Warranty

Denso spark plugs, including the Iridium Long Life 3433, are manufactured to meet strict OEM standards for fit, form, and function. The use of high-quality materials such as iridium and platinum ensures durability and consistent performance. While specific warranty terms may vary, Denso products typically come with a limited warranty against manufacturing defects. Consult product documentation or vehicle service guidelines for detailed warranty information.