TAKUMI S-R6A15 Spark Plug OEM Quality Spark Plugs 1234-3755 1234-4096 1234-3055 For MWM Replaces 12343755
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 S-R6A15 spark plug is a form, fit and function equivalent replacement for OEM part 12343755. TAKUMI S-R6A15 prechamber spark plug for MWM TCG 2016 / TCG 3016 and CAT CG 132 gas engines. M18x1.5 thread, 0.3 mm gap, resistor type.
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 TypeS-R6A15
- Thread SizeM18 x 1.5
- Reach26 mm
- Hex Size22.2 mm (7/8")
- Seat TypeFlat / Gasket
- Spark Gap0.3 mm
- Electrode TypePrechamber (5-hole)
- Cable Length540 mm
- Shield Length278 mm
- ResistorYes
Cross Reference
- MWM1245-3562 / 1245-3564 / 1245-3548 / 1234-3755 / 1234-3055 / 1234-4096 / 1231-9475 / 1234-2668 / 1234-3758
- C-A-T1245-3546
- 2G32090-00017
Applications
- MWM TCG 2016 V8 / V12 / V16 A-B-C
- MWM TCG 3016
- CAT CG 132 V8 / V12 / V16
- Biogas and natural gas CHP
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.
Application
In continuous-duty generator applications, consistent ignition reduces misfire-related downtime and lowers maintenance cost over the engine's lifetime.
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.
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.


