NGK Laser Platinum Spark Plug 84-85 RX-7, 13B (4 required) & 86-95 RX-7, 13B Trailing (2 required)


Product Overview

NGK Laser Platinum Spark Plugs provide high ignitability and longer service life. Dual platinum surfaces ensure slow wear rate providing stable idle, superior anti fouling, improved fuel efficiency and lower emissions


* Laser welded Platinum center electrode tip
* Platinum disc welded to backside of ground electrode provides long service life
* “Trivalent Metal Plating” provides superior anti-corrosion and anti-seizing properties
* Faster starts and quicker acceleration
* Better fuel economy and lower emissions
* Best Platinum spark plug available
* Original Equipment Manufacturer approved design

554: 5K Ohm
Center Electrode Core Material: Copper Core
Center Electrode Tip Material: Platinum
Gap Size: 0.056
Ground Configuration: Surface Discharge
Ground Electrode Core Material: Nickel Core
Ground Electrode Tip Design: Surface Discharge Type
Hex Size: 13/16"
Insulator Height: 67.00
Manufacturer Heat Range: 12
Reach: 21.5
Resistance: 5000
Seat Type: Flat
Thread Diameter: 14.00