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.

Product Overview

TAKUMI R9B12-77 spark plug is a form, fit and function equivalent replacement for OEM part 1214569. TAKUMI R9B12-77 iridium spark plug for Jenbacher J620 engines, replaces 436782 / Denso 518 / 1214569.

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.

Key Specifications

• TAKUMI TypeR9B12-77
• Thread SizeM18 x 1.5
• Reach20.6 mm
• Hex Size22.2 mm
• Seat TypeFlat
• Spark Gap0.3 mm
• Electrode TypeIridium
• ResistorYes

Cross Reference

• Jenbacher / INNIO436782 / 1214569 / J620
• DENSO518
• 2G32090-00018

Applications

• Jenbacher J616 / J620 / J624 gas engines
• CHP plants

Advantages

• Drop-in replacement - no engine parameter changes required
• Reliable ignition under high pressure and lean combustion
• Anti-corrosion nickel-plated housing
• 95% alumina insulator for heat and shock resistance
• Monolithic resistor for stable conductivity
• Factory direct with competitive pricing and short lead time

OE numbers are for reference only. Final fitment should be confirmed before ordering.

Factory & Quality Control

The testing equipment is calibrated regularly and all inspection records are kept for at least three years, supporting fast after-sales analysis.

Production Workshop

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.