TAKUMI R8F12-79 Spark Plug Champion RN2C Spark Plug Iridium Tip replace RN79G / Denso GE3-1 GE3-5A / Bo-sch 731

TAKUMI spark plugs are manufactured with a complete quality management system - from incoming material inspection to outgoing 100% spark and seal testing.

Product Overview

TAKUMI R8F12-79 spark plug. TAKUMI R8F12-79 iridium-tip spark plug replacing Champion RN79G / Denso GE3-1 for industrial gas engines.

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 TypeR8F12-79
• Thread SizeM14 x 1.25
• Reach19 mm
• Hex Size20.6 mm
• Seat TypeFlat
• Spark Gap0.3 mm
• Electrode TypeIridium tip
• ResistorYes

Cross Reference

• ChampionRN2C / N2C / RN79G / RN79G1
• DENSOGE3-1 / GE3-5A
• Bo-sch731 / 7311 / 7315 / W3DDP0R
• STITT2SGA40XL / R40XL / R407XL

Applications

• Natural gas generator engines
• Industrial stationary engines

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

Each unit is 100% tested for spark performance and gas tightness. Random samples from every batch also undergo dimension and material verification.

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.