NGK 3351 Spark Plug

Reliable Ignition Performance for Select GM and Ford Vehicles

The NGK G-Power Spark Plug 3351 is engineered to deliver consistent ignition performance for a range of vehicles including Buick, Chevrolet, Dodge, Ford, Geo, GMC, and Pontiac models. Designed with durable materials and precise specifications, this spark plug supports efficient combustion and engine reliability.

• Resistance: 5000 ohms for optimal electrical noise suppression
• Ground Electrode Tip Design: Trapezoid for improved spark exposure
• Center Electrode Tip Material: Platinum for enhanced durability
• Center Electrode Core Material: Copper for superior conductivity
• Ground Electrode Core Material: Nickel for corrosion resistance
• Pre-Gap Size: 0.040 inches for precise spark gap
• Hex Size: 13/16 inch for standard installation tools
• Seat Type: Flat for secure sealing
• Thread Diameter: 14.00 mm with 0.75 inch reach
• Manufacturer Heat Range: 5 suitable for moderate engine temperatures

About the NGK G-Power Spark Plug Line

The G-Power Spark Plug line from NGK focuses on combining advanced materials like platinum and copper to enhance spark plug longevity and performance. The 3351 part number benefits from this technology by offering a platinum-tipped center electrode that resists wear while maintaining excellent conductivity through its copper core. This balance supports stable ignition and efficient fuel combustion in compatible vehicles.

Technical Details and Compatibility

The NGK G-Power Spark Plug 3351 features a trapezoid ground electrode tip and a single ground electrode configuration, which helps optimize spark exposure and combustion efficiency. Its non-removable nut electrical terminal type ensures a secure connection. With a flat seat type and a 14 mm thread diameter, this spark plug is designed for easy installation in engines requiring a 0.75 inch reach and a heat range of 5. Compatible vehicles include Chevrolet Camaro, Impala, and Nova, Ford Pinto and S10, Buick Skylark, Pontiac Grand Am, and several GMC and Dodge models.

Common Applications and Problem Solving

• Restores consistent ignition in vehicles experiencing misfires
• Improves fuel efficiency by ensuring proper spark delivery
• Reduces engine hesitation during acceleration
• Helps maintain smooth idle and overall engine performance
• Prevents electrode wear and corrosion in older ignition systems

Installation Notes and Tips

Before installation, verify the spark plug gap is set to 0.040 inches as specified. Use a 13/16 inch socket for removal and installation. Ensure the flat seat type matches the engine’s cylinder head design to prevent compression leaks. Tighten to manufacturer torque specifications to avoid damage to the spark plug or engine components. The non-removable nut terminal requires compatible ignition wires or connectors.

Quality Assurance and Warranty

NGK spark plugs are manufactured to meet strict quality standards, ensuring reliable performance and durability. The G-Power Spark Plug 3351 undergoes rigorous testing for heat resistance and electrical conductivity. While specific warranty details vary by distributor, NGK products typically include coverage against manufacturing defects. Consult your supplier for exact warranty terms.