AR12C-OE – SPARK PLUG AR12C-OE (KTM OEM A40039093012)

THE SPARK PLUG

The BRISK AR12C-OE (OEM part number A40039093012) is the factory original equipment spark plug for:

• KTM 65SX
• GasGas MC65
• Husqvarna TC65

Developed through long-term collaboration with KTM, GASGAS, and Husqvarna factory racing teams, BRISK now supplies OEM spark plugs for production SX, MC, and TC models in 50cc and 65cc platforms (2024 models onward).

This OEM-spec spark plug was jointly engineered and extensively tested with KTM to ensure reliable ignition across the full operating range of modern high-performance mini motocross engines. The goal was to maintain consistent combustion stability, improved reliability, and optimal performance in race-focused applications.


DESIGN & PERFORMANCE

The AR12C-OE features a nickel alloy centre electrode with a copper core, providing excellent heat conductivity and thermal stability. This design helps maintain an optimal operating temperature across all engine conditions, from cold starts through to sustained high-RPM operation.

The copper core efficiently dissipates heat from the firing tip, helping prevent overheating and ensuring consistent ignition performance — critical for small-capacity, high-revving race engines.


TECHNICAL SPECIFICATIONS

• Thread Diameter: 10mm
• Thread Reach: 19mm (3/4")
• Hex Size: 16mm (5/8")
• Seat Type: Gasket
• Design: Copper Alloy Electrode
• Resistor: Yes
• Projected: No
• Heat Range: 12


FEATURES

• Genuine OEM specification for KTM / GasGas / Husqvarna 65cc models
• Developed with factory racing teams
• Copper core centre electrode for superior heat conductivity
• Stable thermal balance across full RPM range
• Reliable ignition under racing conditions
• Designed for modern high-performance 2-stroke mini engines


APPLICATIONS

• KTM 65SX
• GasGas MC65
• Husqvarna TC65
• 65cc race-focused motocross engines


A factory-developed OEM spark plug delivering reliable ignition, consistent performance, and race-proven durability for modern 65cc motocross engines.

SKU AR12C-OE
Barcode # 9334437085325
Brand Brisk Spark Plugs
Unit Of Measure EACH

FIND IN STORE