NGK 5275 Spark Plug

NGK Laser Platinum Spark Plug for Toyota Supra

The NGK Laser Platinum Spark Plug 5275 is built for precise ignition performance in 1987-1992 Toyota Supra applications. It uses a platinum center electrode, nickel ground electrode, and a 5,000-ohm resistor to support stable spark delivery and consistent engine operation.

NGK’s Laser Platinum line focuses on OE-style durability and dependable ignition performance for vehicles that call for a flat-seat, 14 mm spark plug with a .750-inch reach and .032-inch pre-gap. Part number 5275 is also identified as BCPR6EP-N-8.

Key Features

• Platinum center electrode tip for long service life
• Copper core center electrode for efficient heat transfer
• Nickel ground electrode with special side ground tip design
• 5,000-ohm resistor helps reduce electrical noise
• Flat seat, 14 mm thread diameter, .750-inch reach
• Pre-gapped to .032 inch for the listed application
• Heat range 6 with non-removable nut terminal

Detailed Description

NGK 5275 is a Laser Platinum spark plug engineered for direct-fit service in Toyota Supra models from 1987 through 1992. The platinum tip helps maintain consistent firing characteristics over time, while the copper core supports thermal control under normal operating conditions. This spark plug is specified with a special side ground electrode design and standard ground configuration, matching the OE-style requirements for the listed Supra fitment. The part number BCPR6EP-N-8 is the same application reference used for this plug.

This part cross-references AMS Automotive 4508 for the same application.

What It Is Used For

• Replacing worn spark plugs that can cause rough idle
• Restoring ignition consistency in Toyota Supra engines
• Addressing hard starting caused by degraded plug performance
• Reducing misfire symptoms tied to worn electrodes
• Maintaining proper combustion in the listed 1987-1992 Supra fitment

Installation Notes and Tips

Verify the plug gap before installation and confirm the engine calls for a flat-seat, 14 mm spark plug with a .750-inch reach. Use the specified torque procedure for the cylinder head material, and inspect ignition wires, coils, and related secondary ignition components at the same time. For fitment, this plug fits 1987-1992 Toyota Supra, N/A.

Quality Assurance

NGK is a major OE spark plug supplier with decades of automotive manufacturing experience and broad coverage across domestic and import applications. Part number 5275 is built to OE-style standards for the listed Toyota Supra fitment and is backed by NGK’s established manufacturing and distribution network.