Denso 3450 Spark Plug

Overview of Denso Iridium Long Life (SIP) Spark Plug 3450

The Denso Iridium Long Life (SIP) spark plug, part number 3450, is engineered for reliable ignition performance in select Hyundai, INFINITI, Kia, Nissan, and Suzuki vehicles. Designed to meet the demands of models like the Nissan Armada, Infiniti QX56, and Kia Borrego, this spark plug offers durability and consistent spark delivery.

• Iridium center electrode tip for enhanced ignition
• Platinum needle ground electrode tip design
• Needle-to-needle ground configuration for precise spark gap
• Copper center electrode core for optimal conductivity
• Nickel ground electrode core material for durability
• Pre-gap size of 1.1 mm for accurate spark timing
• Flat seat type with 14 mm thread diameter and 26.5 mm reach
• Hex size of 16.0 mm for standard installation tools
• Manufacturer heat range rating of 16
• Resistance value of 5000 ohms to reduce electrical noise

Detailed Product Features and Specifications

The Denso 3450 spark plug features an iridium center electrode tip, which provides a stable and efficient spark for improved combustion. The copper core in the center electrode enhances thermal conductivity, helping to dissipate heat effectively. The ground electrode uses a platinum needle tip in a needle-to-needle configuration, which maintains a consistent spark gap and contributes to longer service life. The nickel core in the ground electrode adds strength and resistance to wear. With a pre-gap size of 1.1 mm and a flat seat design, this spark plug ensures proper fit and optimal ignition performance in compatible vehicles.

About the Iridium Long Life (SIP) Product Line

The Iridium Long Life (SIP) line from Denso focuses on delivering extended durability and consistent ignition performance. This product line incorporates iridium and platinum electrode materials to reduce electrode wear and maintain spark efficiency over time. The 3450 spark plug benefits from this technology, making it suitable for vehicles requiring reliable secondary ignition components that withstand demanding operating conditions.

Compatible Vehicles and Common Applications

• Hyundai Genesis and Xterra models
• INFINITI QX56 and Equus
• Kia Borrego and Sorento
• Nissan Armada, Frontier, Maxima, Pathfinder, TITAN, NV1500, NV2500, NV3500
• Suzuki models requiring secondary ignition spark plugs

Installation Notes and Tips

• Use a 16 mm socket wrench for installation and removal
• Ensure the spark plug gap is set to 1.1 mm if adjustment is needed
• Apply anti-seize compound sparingly on threads to prevent galling
• Torque to manufacturer specifications to avoid damage
• Inspect ignition wires and coils during replacement for optimal performance

Quality Assurance and Warranty

Denso spark plugs, including part number 3450, are manufactured to meet strict quality standards for ignition components. The use of premium materials such as iridium and platinum ensures durability and consistent performance. While specific warranty details may vary, Denso products typically come with manufacturer-backed quality assurance to support reliable operation in compatible Hyundai, INFINITI, Kia, Nissan, and Suzuki vehicles.