
Choosing TAKUMI means buying directly from the source. Our factory in China runs dedicated production lines for industrial and automotive spark plugs with full traceability.
TAKUMI R6GC1-77M spark plug. TAKUMI R6GC1-77M industrial resistor spark plug for MTU 4000 gas engines. M18x1.5 thread, 0.3 mm gap, heat range 77.
Every TAKUMI unit is produced in an ISO 9001 and IATF 16949 certified factory, 100% tested before shipment. The plug is engineered for long service life in continuous operation, with a nickel-plated shell, copper-core electrode and high-grade ceramic insulator.
OE numbers are for reference only. Final fitment should be confirmed before ordering.

The testing equipment is calibrated regularly and all inspection records are kept for at least three years, supporting fast after-sales analysis.
TAKUMI runs a fully integrated manufacturing base: CNC machining, automated assembly and 100% functional testing under one roof.



From raw material to finished spark plug, every process is controlled in-house with ISO-certified procedures.