Behind every TAKUMI spark plug is a vertically integrated factory: precision grinding, laser welding, ceramic sintering and automated electrical testing under one roof.

Product Overview

TAKUMI R10P3 spark plug is a form, fit and function equivalent replacement for OEM part 347257. TAKUMI R10P3 double iridium spark plug for GE Jenbacher GS 420 engines, replaces 462203 / P3V3N1 family.

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 TypeR10P3
• Thread SizeM18 x 1.5
• Reach20.6 mm
• Hex Size22.2 mm
• Seat TypeFlat
• Spark Gap0.3 mm
• Heat Range77
• Electrode TypeDouble Iridium (special design)
• ResistorYes

Cross Reference

• Jenbacher / INNIO462203 / 462199 / 401824 / 639753 / 639754 / 347257 / P3V3N1 / P3.V3 / P3.V5
• BERU18GZ47 / FBM80WPNS

Applications

• GE Jenbacher J320 / J420 GS engines
• Jenbacher 2, 3 and 4 series
• CHP cogeneration 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

Our QC team records batch numbers for full traceability. Should any issue arise, we can quickly isolate the production batch and respond within 48 hours.

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.