NGK 3177 Spark Plug

Reliable Ignition for Jaguar XJ12, XJRS, and XJS

The NGK V-Power Spark Plug 3177 is engineered to deliver consistent ignition performance for select Jaguar models. Designed specifically for the XJ12, XJRS, and XJS, this spark plug ensures optimal combustion and engine efficiency.

• Resistance: 5000 ohms for effective electrical noise suppression
• Ground Electrode Tip Design: Standard for reliable spark delivery
• Center Electrode Core Material: Copper for excellent conductivity
• Ground Electrode Core Material: Nickel for durability
• Pre-Gap Size: 0.028 inches for precise spark gap
• Hex Size: 5/8 inch for easy installation
• Seat Type: Tapered to ensure proper sealing
• Thread Diameter: 14 mm with 0.708 inch reach for correct fitment
• Electrical Terminal Type: Non-removable nut for secure connection
• Manufacturer Heat Range: 6, suitable for moderate engine temperatures

About the NGK V-Power Spark Plug Line

The V-Power Spark Plug line from NGK focuses on delivering dependable ignition components with materials and designs that support consistent engine performance. This line incorporates copper core center electrodes and nickel ground electrodes to balance conductivity and durability, making it suitable for vehicles like the Jaguar XJ12, XJRS, and XJS that require precise ignition characteristics.

Technical Details and Performance

The NGK 3177 spark plug features a copper core center electrode that enhances electrical conductivity, promoting efficient ignition and combustion. The nickel ground electrode and tip provide resistance to wear and corrosion, extending service life. With a resistance rating of 5000 ohms, this spark plug helps reduce electrical interference with vehicle electronics. The tapered seat and 14 mm thread diameter ensure a secure and proper fit in the engine cylinder head, while the 0.028 inch pre-gap size supports optimal spark generation.

Applications and Problem Solving

• Compatible with Jaguar XJ12, XJRS, and XJS models requiring part number 3177
• Addresses misfires caused by worn or faulty spark plugs
• Helps improve cold starts and engine responsiveness
• Reduces engine hesitation and rough idling
• Supports consistent fuel combustion for smoother operation

Installation Notes and Tips

When installing the NGK V-Power Spark Plug 3177, ensure the spark plug gap is set to the specified 0.028 inches if adjustment is necessary. Use a 5/8 inch socket for proper torque application to avoid over-tightening. The tapered seat design requires careful threading to prevent damage to the cylinder head. Always replace spark plugs in sets to maintain balanced engine performance.

Quality Assurance and Warranty

NGK spark plugs are manufactured to meet strict quality standards, ensuring reliable ignition performance. The V-Power Spark Plug 3177 undergoes rigorous testing for durability and electrical consistency. While specific warranty details may vary, NGK products typically come with manufacturer-backed quality assurance to support long-term use in Jaguar XJ12, XJRS, and XJS vehicles.