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


Product Overview

NGK Standard Spark Plugs are considered the workhorse, at the heart of smooth-running engines around the world.


* OEM Quality
* Triple-Gasket Sealing Process
* Consistent Performance
* Plug of Choice in Millions of Vehicles

554: 5K Ohm
Center Electrode Core Material: Copper Core
Center Electrode Tip Material: Nickel
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