NGK 4968 Spark Plug

NGK Laser Platinum Spark Plug 4968

NGK Laser Platinum Spark Plug 4968 is an OE-style ignition component built for consistent spark delivery and long service life. It uses a platinum center electrode tip, a nickel ground electrode, and a copper core to support stable combustion in demanding daily driving conditions.

Compatible With 2000-2008 Jaguar S-Type and 2002-2008 Jaguar X-Type applications, this spark plug is a direct-fit choice for drivers maintaining factory-style ignition performance. The NGK Laser Platinum line is positioned for vehicles that call for durable electrode materials and OE-level service intervals.

Key Features

• Laser Platinum design with a platinum center electrode tip
• Copper core center electrode for efficient heat transfer
• Nickel ground electrode with standard tip design
• 10,000 ohm resistance for ignition system compatibility
• Pre-gapped at .052 inch
• Tapered seat, 14 mm thread diameter, and .708 inch reach
• 5/8 inch hex size with non-removable nut terminal
• Manufacturer heat range 6

Detailed Description

NGK part number 4968, also identified as TR6AP-13E, is engineered as a Laser Platinum spark plug for vehicles that require a tapered-seat, 14 mm plug with a .708 inch reach. The platinum tip helps maintain consistent firing characteristics over time, while the copper core supports thermal control during normal engine operation. This makes it a practical OE replacement for Jaguar S-Type and Jaguar X-Type models within the listed fitment range. If you are searching for a Jaguar S-Type spark plug or a Jaguar X-Type spark plug, NGK 4968 is a direct application match for the specified years.

NGK has a long history as an OE supplier and manufactures spark plugs for a wide range of domestic and import vehicles. The Laser Platinum product line focuses on durability, original-equipment standards, and dependable ignition performance for vehicles that rely on precise spark delivery.

What It Helps Address

• Engine misfire caused by worn or fouled spark plugs
• Hard starting from weak ignition output
• Rough idle and inconsistent combustion
• Reduced fuel economy from degraded spark performance
• Loss of throttle response related to aging plugs

Installation Notes and Tips

Verify the engine’s required plug specifications before installation, including thread diameter, reach, seat type, and pre-gap. For the listed Jaguar S-Type and Jaguar X-Type applications, confirm the gap requirement against the vehicle service information before installation, since OE notes reference a 0.050 inch gap. Use proper spark plug removal and installation procedures to avoid thread damage in the cylinder head.

• Fits 2000-2008 Jaguar S-Type, N/A; Gap 0.050"; Actual OE Manufacturer; 100,000 mi OE Mfr Recommended Service Interval; Laser Platinum Spark Plug
• Fits 2002-2008 Jaguar X-Type, N/A; Gap 0.050"; Actual OE Manufacturer; 100,000 mi OE Mfr Recommended Service Interval; Laser Platinum Spark Plug

Quality Assurance

NGK is a major OE spark plug supplier with manufacturing and distribution operations in North America and globally. Part number 4968 is built to original-equipment standards for durability and operational performance in the specified Jaguar applications.