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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.
The HKS SUPER FIRE RACING M50HL spark plugs are designed to deliver exceptional ignition performance, even under the most demanding conditions. Featuring a special Iridium-alloy tip and a unique "half-long" insulator structure, these plugs offer superior heat resistance and durability compared to conventional spark plugs. This advanced design ensures a strong, consistent spark, leading to improved combustion efficiency, enhanced power output, and better fuel economy. The M50HL designation indicates a specific heat range and reach, making them ideal for high-performance applications.
Whether you're building a track-day monster or seeking to optimize your daily driver, the HKS SUPER FIRE RACING M50HL spark plugs are a critical component for achieving peak engine performance. Experience the difference that cutting-edge ignition technology can make. Find these high-performance spark plugs and more at GGCRACING.
| Brand | HKS |
|---|---|
| Manufacturer part number | 50003-M50HL |
| GGC SKU | HKS50003-M50HL |
| UPC / GTIN | 4957266720479 |
Use the manufacturer part number when you compare with other listings or ask us to confirm a match.
| Box size | 5 × 4 × 1.9 in |
|---|---|
| Shipping weight | 1 lb |
Universal fit — check measurements. Compare the dimensions and specifications on this page with your application before you order.
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