Denso 3441 Spark Plug

Overview of Denso Iridium Long Life Spark Plug 3441

The Denso Iridium Long Life spark plug 3441 is engineered for reliable ignition performance in select Dodge, Kia, Mercedes-Benz, Mitsubishi, and Smart vehicles. Designed with advanced materials, this spark plug supports efficient combustion and long service intervals.

• Iridium center electrode tip for enhanced durability
• Platinum chip ground electrode tip for stable ignition
• Copper core center electrode for optimal conductivity
• Standard ground configuration with nickel core ground electrode
• Pre-gap size of 0.8 mm for precise spark delivery
• Flat seat type with 12 mm thread diameter and 26.5 mm reach
• Hex size of 16.0 mm for installation compatibility
• Manufacturer heat range rating of 22
• Resistance of 5000 ohms to reduce electrical noise

Detailed Product Features and Specifications

The Denso Iridium Long Life spark plug 3441 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 efficiently. The ground electrode incorporates a platinum chip tip and a nickel core, ensuring consistent spark performance and resistance to electrode wear. With a pre-gap size of 0.8 mm, this spark plug is optimized for precise ignition timing and combustion efficiency.

The spark plug has a flat seat type and a thread diameter of 12.00 mm with a reach of 26.50 mm, making it compatible with specific engine designs. The hex size of 16.0 mm allows for standard tool use during installation. Its resistance rating of 5000 ohms helps minimize radio frequency interference, which is important for modern vehicle electronics. The manufacturer heat range of 22 indicates its suitability for a range of operating temperatures in the compatible vehicles.

About the Iridium Long Life Product Line

The Iridium Long Life line from Denso is designed to provide extended durability and consistent ignition performance. Iridium, being a hard and heat-resistant metal, allows the spark plug to maintain a sharp electrode tip over time, reducing misfires and improving fuel efficiency. This product line targets drivers who require reliable ignition components that can withstand demanding driving conditions and longer service intervals.

Compatible Vehicles and Applications

This spark plug 3441 is compatible with various models from Dodge, Kia, Mercedes-Benz, Mitsubishi, and Smart, including but not limited to:

• Mercedes-Benz C230, C250, C280, C300, C350, CL550, CLK350, CLK550, CLS550, E350, E550, G550, GL450, GL550, GLK350, ML350, ML450, ML550, R350, S400, S550, SL550, SLK250, SLK280, SLK300, SLK350
• Smart Fortwo
• Dodge Sprinter 2500, Sprinter 3500
• Kia Soul
• Mitsubishi Outlander

Common Issues Addressed by This Spark Plug

• Engine misfires and rough idling
• Poor fuel economy due to incomplete combustion
• Difficulty starting the engine in cold conditions
• Reduced engine power and acceleration
• Increased emissions from inefficient ignition

Installation Notes and Tips

When installing the Denso Iridium Long Life spark plug 3441, ensure the correct torque specifications are followed to avoid damage to the spark plug or cylinder head. Use a 16 mm socket for installation and verify the pre-gap size of 0.8 mm before installation if adjustments are necessary. It is recommended to replace spark plugs in sets to maintain balanced engine performance. Always consult the vehicle’s service manual for specific installation procedures and heat range compatibility.

Quality Assurance and Warranty

Denso manufactures the Iridium Long Life spark plug 3441 to meet strict quality standards, ensuring consistent performance and durability. The use of premium materials such as iridium and platinum contributes to the spark plug’s longevity and reliability. While specific warranty details may vary, Denso products typically come with manufacturer-backed warranties covering defects in materials and workmanship.