NGK 96393 Spark Plug

Laser Iridium Spark Plug for GM Applications

NGK Laser Iridium Spark Plug 96393 is built for drivers who need a precise ignition component with OE-style fitment and consistent electrical performance. It is a direct match for select Cadillac applications, including CT4, ATS, CTS, and XTS coverage.

Key Features

• Laser iridium center electrode for stable spark delivery.
• Copper core and nickel ground electrode materials for balanced heat transfer and durability.
• Pre-gapped to 0.036 in. for the listed applications.
• Resistor design with a 5,000 ohm resistance value.
• Tapered seat, 14 mm thread diameter, and 5/8 in. hex size.

Detailed Description

NGK 96393 uses an iridium center electrode, a standard ground configuration, and a non-removable nut terminal to support reliable ignition performance in modern engine systems. The plug is specified with a 7 heat range, 25.00 reach, and 52.50 insulator height, making it a fitment-focused replacement for select Cadillac CT4, ATS, CTS, and XTS models. This part cross-references NGK (e.g., 96393) for the same application.

The Laser Iridium Spark Plug line is engineered around precise electrode design and OE-level manufacturing standards. For buyers searching for a Cadillac CT4 spark plug, Cadillac ATS spark plug, or Cadillac CTS spark plug replacement, NGK 96393 provides the specification match needed for service work and scheduled maintenance.

What It Is Used For

• Restoring weak or inconsistent spark output.
• Addressing misfire-related drivability concerns.
• Replacing worn plugs with excessive electrode wear.
• Maintaining proper ignition performance at service intervals.

Installation Notes and Tips

Verify the specified gap, thread size, seat type, and reach before installation. Use the vehicle service information for torque and replacement interval guidance. Confirm the application against the listed Cadillac CT4, ATS, CTS, or XTS fitment before ordering.

Quality Assurance

NGK is a major OE spark plug supplier in North America with long-standing manufacturing experience and original equipment standards in its production process. Part number 96393 is built to meet the requirements of the listed applications.