NGK 4045 Spark Plug

NGK Laser Platinum Spark Plug 4045 Overview

NGK Laser Platinum Spark Plug 4045 is built for precise ignition performance in applications that call for a 14 mm, flat-seat plug with a .044 pre-gap. It uses a platinum center electrode tip, a nickel ground electrode, and a copper core center electrode to support consistent spark delivery and stable operation.

Compatible With 1987-1989 Nissan Pulsar NX, this NGK Laser Platinum Spark Plug is a direct-fit ignition service part for the specified OE-style application. The PFR6A-11 design is also identified by stock number 4045 for easy cross-reference during maintenance or tune-up planning.

Key Features

• Laser Platinum spark plug from NGK’s Laser Platinum product line
• Part number 4045 / PFR6A-11
• Platinum center electrode tip with copper core center electrode
• Nickel ground electrode with standard ground configuration
• Pre-gapped at .044 for the listed application
• 5,000 ohm resistance for ignition system compatibility
• 14 mm thread diameter, .75 reach, flat seat, 5/8 hex
• Manufacturer heat range 6

Product Details

NGK’s Laser Platinum line is positioned for OE-style ignition service where durability, stable spark characteristics, and consistent fitment matter. NGK has long supplied spark plugs for domestic and import vehicles in North America, and this plug reflects that OE-focused engineering approach. For 1987-1989 Nissan Pulsar NX service, part number 4045 provides the specified dimensions and electrode design needed for the listed application.

This part cross-references AMS Automotive 4045 and Catco 4707 for the same application.

Common Issues This Part Can Address

• Hard starting caused by worn or fouled spark plugs
• Rough idle from inconsistent spark delivery
• Misfire conditions related to plug wear or incorrect gap
• Reduced throttle response from degraded ignition performance
• Service interval maintenance on 1987-1989 Nissan Pulsar NX ignition systems

Installation Notes and Tips

Verify the vehicle’s required plug specification before installation, including thread diameter, reach, seat type, and gap. For the listed Nissan Pulsar NX application, the pre-gap is .044, and the notes specify an OE manufacturer service interval of 60,000 miles. Inspect ignition wires, coils, and plug wells during service to help maintain consistent performance.

Quality Assurance

NGK is a major OE spark plug supplier with more than 80 years of automotive experience, and its products are manufactured to support original equipment standards for durability and operational performance. This focus on OE-level manufacturing and distribution supports dependable service for the specified application.