Denso 5061 Spark Plug

Overview of Denso U-Groove Conventional Spark Plug 5061

The Denso U-Groove Conventional spark plug 5061 is engineered for reliable ignition performance in select European vehicles. Designed with a multi-electrode ground configuration and copper core center electrode, this spark plug supports efficient combustion and consistent engine operation.

• Multi-electrode ground configuration with 3 nickel ground electrodes
• Copper core center electrode with nickel tip for durability
• Resistance rating of 5000 ohms to reduce electrical noise
• Flat seat type with 14mm thread diameter and 19mm reach
• Pre-gap size of 1.0 mm for optimal spark gap
• Hex size of 16 mm for standard installation tools
• Manufacturer heat range of 20 suitable for various driving conditions

Detailed Product Features and Specifications

The Denso 5061 spark plug features a multi-electrode design with three nickel ground electrodes that improve ignition reliability and reduce misfires. The copper core center electrode enhances thermal conductivity, promoting stable combustion and efficient fuel burn. The flat seat design ensures a secure fit in the cylinder head, while the 14mm thread diameter and 19mm reach match factory specifications for compatible vehicles. With a resistance of 5000 ohms, this spark plug minimizes electromagnetic interference with vehicle electronics. The pre-gap size of 1.0 mm is factory set to optimize spark performance without additional adjustment.

About the U-Groove Conventional Product Line

The U-Groove Conventional line from Denso focuses on spark plugs with a unique groove design on the center electrode to improve ignition efficiency and flame propagation. This conventional style spark plug balances performance and durability, making it suitable for a range of European vehicles requiring reliable secondary ignition components. The 5061 part number is part of this line, offering consistent quality and fitment for models from Audi, Mercedes-Benz, Porsche, Volkswagen, and Volvo.

Compatible Vehicles and Common Applications

• Compatible with Audi models including A4, A6, S4, S6, and Allroad Quattro
• Fits Mercedes-Benz vehicles such as C230, S320, and SLK230
• Suitable for Porsche 911, Boxster, and Cayenne
• Works with Volkswagen Golf, Jetta, Passat, Beetle, and Touareg
• Compatible with Volvo V70 and S60 models

Common Issues Addressed by Denso 5061 Spark Plug

• Engine misfires and rough idling
• Reduced fuel efficiency due to incomplete combustion
• Difficulty starting the engine in cold conditions
• Increased emissions from inefficient ignition
• Interference with vehicle electronics caused by spark plug resistance

Installation Notes and Tips

When installing the Denso 5061 spark plug, ensure the spark plug gap is set to the factory recommended 1.0 mm if adjustment is necessary. Use a 16 mm socket wrench for proper torque application to avoid damage to the flat seat threads. It is recommended to inspect the cylinder head threads for cleanliness and apply anti-seize compound if specified by the vehicle manufacturer. Always replace spark plugs in sets to maintain balanced engine performance.

Quality Assurance and Warranty

Denso spark plugs, including the 5061 part number, are manufactured to meet OEM specifications for fit, form, and function. The materials used, such as nickel and copper electrodes, are selected for durability and consistent performance. While specific warranty details may vary, Denso products typically come with a limited warranty against manufacturing defects when installed according to manufacturer guidelines.