Denso 4130 Spark Plug

Reliable Ignition with Denso U-Groove Conventional Spark Plug 4130

The Denso U-Groove Conventional Spark Plug 4130 is engineered to deliver consistent ignition performance for a variety of vehicles. Designed with a multi-electrode ground configuration and durable materials, this spark plug supports efficient combustion and engine reliability.

• Resistance rating of 5000 ohms for optimal electrical performance
• Multi-electrode ground configuration with two ground electrodes
• Nickel ground electrode core and tip for durability
• Copper center electrode core with nickel tip for effective spark conduction
• Pre-gap size of 0.7 mm for precise ignition timing
• Flat seat type with 19.00 mm reach and 12.00 mm thread diameter
• Hex size of 18.0 mm for standard installation tools
• Manufacturer heat range of 27 suitable for various engine conditions

About the U-Groove Conventional Product Line

The U-Groove Conventional line from Denso focuses on spark plugs featuring a unique groove design on the center electrode. This design enhances spark exposure and improves ignition efficiency. The 4130 model incorporates this technology with a conventional multi-electrode setup, balancing performance and durability for secondary ignition systems.

Technical Details and Performance

The Denso 4130 spark plug utilizes a multi-electrode ground configuration with two nickel ground electrodes, which helps distribute the spark and reduce electrode wear. The copper core center electrode with a nickel tip ensures reliable conductivity and heat dissipation. With a resistance of 5000 ohms, this spark plug minimizes electrical noise and interference, supporting stable engine operation. The flat seat and 19 mm reach make it compatible with many vehicle engines requiring precise fitment.

Applications and Problem Solving

• Improves ignition reliability in vehicles experiencing misfires
• Reduces electrode wear for longer service intervals
• Helps maintain consistent engine performance under varied conditions
• Minimizes electrical interference affecting onboard electronics
• Supports efficient fuel combustion to reduce emissions

Installation Notes and Tips

Ensure the spark plug gap is set to the specified 0.7 mm pre-gap before installation. Use an 18 mm socket wrench for proper tightening to avoid damage to the flat seat. Verify thread diameter compatibility (12 mm) and reach (19 mm) with your vehicle’s engine specifications. Proper torque application is essential to maintain sealing and prevent thread damage.

Quality Assurance and Warranty

Denso manufactures the U-Groove Conventional 4130 spark plug to meet strict quality standards for ignition components. While specific warranty details are not provided, Denso products typically undergo rigorous testing to ensure durability and performance in secondary ignition systems.