super fast shipping
HKS engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full HKS lineup with fast shipping and expert fitment support — order with confidence.
Experience the pinnacle of ignition technology with the HKS SUPER FIRE RACING M40 Spark Plug. Engineered by HKS, a renowned leader in automotive performance parts, this spark plug is designed to deliver superior ignition performance, reliability, and durability for a wide range of vehicles. The M40 features a special iridium alloy tip, offering exceptional resistance to wear and a lower required voltage for a stronger spark, leading to improved combustion efficiency and power output.
Upgrade your ignition system with the HKS SUPER FIRE RACING M40 Spark Plug and feel the difference in your engine's responsiveness and power. Ensure your vehicle is performing at its best with this premium spark plug. Find it and other top-tier performance parts at GGCRACING.
| Brand | HKS |
|---|---|
| Manufacturer part number | 50003-M40 |
| GGC SKU | HKS50003-M40 |
| UPC / GTIN | 4957266720219 |
Use the manufacturer part number when you compare with other listings or ask us to confirm a match.
| Box size | 4.9 × 3.5 × 1.6 in |
|---|---|
| Shipping weight | 1.2 lb |
Universal fit — check measurements. Compare the dimensions and specifications on this page with your application before you order.
No reviews yet. Bought this part? Tell other drivers how it fits and performs.