HKS 50003-M45IL Super Fire Racing Spark Plugs M45iL Iridium (Individual)

HKS Super Fire Racing Spark Plugs M45iL (50003-M45IL) 

A genuine HKS M-Series Super Fire Racing spark plug set built for reliable ignition, high-load durability, and improved resistance to carbon buildup—ideal for performance and tuned engines.

Key Benefits

• 0.6mm iridium alloy center electrode for strong ignition and long service life

• Platinum square-tip ground electrode for durability and wear resistance

• Short-type / anti-vibration ground electrode design for strength under harsh conditions

• Anti-fouling features designed to help reduce carbon accumulation

• Designed to support stable combustion in demanding environments

Specs

• Brand: HKS

• Part Number: 50003-M45IL

• Model: M45iL

• Pack Quantity: (one) individual

• Plug Type: Long reach type

• Thread / Reach: 14mm x 26.5mm

• Hex Size: 16mm

• Heat Range: 9

What’s Included

• 1 x HKS M45iL Super Fire Racing Spark Plugs (50003-M45IL)

Fitment & Compatibility

Spark plug compatibility depends on your engine’s required thread/reach, seat type, heat range, and tune/setup.
Please confirm specs match your application before ordering. If you need help verifying fitment, send your vehicle details and mod list.

Installation Notes

• Professional installation recommended.

• Follow proper torque and gap for your specific engine/tune.

• Incorrect selection or unsuitable combustion conditions may result in plug damage.