NGK 3951 Spark Plug

Reliable Ignition with NGK V-Power Spark Plug 3951

The NGK V-Power Spark Plug 3951 is engineered to deliver consistent ignition performance for a wide range of vehicles including Ford, Chevrolet, Cadillac, and Mazda models. Designed with durable materials and precise specifications, this spark plug supports efficient combustion and engine reliability.

• Resistance: 5000 ohms for effective noise suppression
• Center electrode made of copper core with nickel tip for optimal conductivity
• Single ground electrode with nickel core and standard tip design
• Non-removable nut electrical terminal type for secure connection
• Pre-gap size of 0.060 inches for precise spark gap
• Tapered seat type and 14mm thread diameter for proper fitment
• Hex size of 5/8 inch for easy installation
• Manufacturer heat range rating of 5 suitable for various engine conditions
• Insulator height of 53.00 mm and reach of 0.708 inches for correct positioning

About the NGK V-Power Spark Plug Line

The V-Power Spark Plug line by NGK focuses on delivering reliable secondary ignition components that meet OEM specifications. This product line emphasizes durability and consistent electrical performance, making it suitable for a broad range of vehicles including luxury and domestic models. The 3951 part number is part of this line, ensuring compatibility and quality for applications requiring a resistor-type spark plug with a tapered seat.

Technical Details and Compatibility

The NGK 3951 spark plug features a copper core center electrode with a nickel tip, providing a balance of conductivity and wear resistance. The single ground electrode with a nickel core and standard tip design supports stable spark generation. Its 5000 ohm resistance helps reduce electromagnetic interference, protecting vehicle electronics. The tapered seat and 14mm thread diameter ensure a secure fit in compatible engines. This spark plug is compatible with various models from Ford, Chevrolet, Cadillac, Mazda, and more, including vehicles like the Ford F-150, Chevrolet Silverado 1500, Cadillac Escalade, and Mazda MPV.

Common Applications and Problem Solving

• Restores proper ignition in vehicles experiencing misfires
• Reduces engine hesitation and rough idling
• Improves fuel efficiency by ensuring complete combustion
• Minimizes electrical interference affecting onboard electronics
• Supports stable engine performance under varied driving conditions

Installation Notes and Tips

When installing the NGK V-Power Spark Plug 3951, ensure the spark plug gap is set to the specified pre-gap size of 0.060 inches if adjustment is necessary. Use a 5/8 inch socket for installation and torque to manufacturer specifications to avoid damage. The non-removable nut terminal type requires compatible ignition wires or boots. Verify compatibility with your vehicle’s make and model before installation to ensure proper fitment.

Quality Assurance and Warranty

NGK spark plugs are manufactured to meet strict quality standards, ensuring reliable performance and durability. The V-Power Spark Plug 3951 includes a resistor to reduce electrical noise and protect vehicle electronics. While specific warranty details may vary, NGK products typically come with manufacturer-backed quality assurance to support long-term use in compatible vehicles.