Jaguar S-Type Spark Plugs - NGK Laser Iridium (IFR5N10), Box of 4 (2003–2007). These NGK Laser Iridium plugs are OE-equivalent replacements designed for Jaguar S-Type applications and other compatible Jaguar/Land Rover engines that use fine-wire iridium spark plugs.

Built to the manufacturer’s standards, the IFR5N10 combines a fine iridium center electrode with high-grade materials for consistent ignition, longer service life, and reliable starts. The iridium tip resists wear much better than conventional electrodes, while NGK’s high-purity alumina ceramic insulator and a copper core help manage heat transfer and electrical conductivity. Many Laser Iridium designs also use a platinum pad on the ground electrode to promote even wear in distributorless ignition systems.

Features

• Iridium-tipped center electrode for extended durability and stable spark
• High-grade pure alumina ceramic insulator for heat resistance
• 98% pure copper core for improved conductivity and heat control
• Platinum pad on ground electrode for even wear in distributorless systems
• OE-equivalent fitment for vehicles specified to use fine-wire iridium plugs

If you have questions or want help confirming fitment, call us directly — we’re happy to assist. We offer installation and customization services at our two locations in Austin, Texas and the Los Angeles, California area. 512-982-9393 (TX) | 562-981-6800 (CA)

If you are thinking about purchasing multiple items, please contact us for shipping discounts. We install on premises at both locations.

CA Residents: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov