The NGK 7543 CMR7A Nickel Spark Plug is engineered for reliable performance and longevity. This spark plug features a nickel alloy center electrode and a solid copper core, ensuring excellent heat dissipation and conductivity. The high-grade alumina silicate ceramic insulator offers superior dielectric strength, while the triple-gasket sealing process prevents combustion gas leakage. Ideal for various small engine applications, this spark plug provides consistent ignition and improved fuel efficiency. The trivalent metal plating offers enhanced anti-corrosion and anti-seizing properties, making installation and removal easier.

Specifications & Features:

Model Number: CMR7A
Part Number: 7543
Electrode Material: Nickel alloy center electrode, copper core
Heat Range: 7
Resistor: Yes, 10000 Ohm
Thread Size: 10mm x 1.0
Reach: 9.6mm (3/8 inch)
Hex Size: 5/8 inch (16mm)
Gap Size: 0.028 inch (0.7mm)
Seat Type: Gasket
Number of Ground Electrodes: 1

Compatible with:

Robin's generator

Agricultural machines