Dinan B48/B58/S58 Iridium Spark Plug - Heat Range 9 - 12mm x 26.5mm x 14mm (Flat) - SINGLE
$48.99
Dinan Iridium Spark Plugs are an excellent upgrade for tuned, and even stock engines. Our spark plugs are made from Iridium - one of the strongest materials available. They last longer than other materials with higher melting points, run cooler, resist preignition, and even require less voltage to produce a strong spark. The iridium electrode with its copper core is harder and stronger than other materials, can dissipate heat more easily, and is better protected from melting, cracking, and other limitations found with standard plugs.
B48/B58/S58
Always check sizes, gap, and heat range specs before installing. Installation of the wrong length plug can cause damage to the engine. You must verify this before installing the plug.
- 152% higher melting point than silver, 125% higher than copper, and 38% higher than platinum
- Heat range 9 spark plug (Similar: Bosch 3, Brisk 10, Champion 4, Denso 27, and NGK 9)
- Acceptable for high performance / tuned and stock vehicle applications alike
- Optimized electrode design for hard to ignite fuels, such as ethanol
- 1 step colder than OEM (Gen 1 B48, Gen 1/2 B58, & S58)
- Cooler operating temperature than stock plugs
- Resists preignition better than stock plugs
- An excellent match for Dinan ignition coils
- Stronger than copper and platinum
- Lower required supplied voltage
- Insulator Material: Ceramic
- Projected insulator design
- Thread diameter: 12mm
- Install Torque: 17 Nm
- Thread reach: 26.5mm
- Hexagon: 14mm Bi-Hex
- Supplied Gap: 0.5mm
- Terminal Type: Cup
- Seat Type: Flat
- Made in the EU
Upgrade your vehicle's ignition system with the Dinan B48/B58/S58 Iridium Spark Plug, designed to deliver superior performance and durability for both tuned and stock engines. Made from iridium, a highly durable material with a melting point 152% higher than silver and 38% higher than platinum, these plugs are engineered to withstand extreme conditions. The iridium electrode, featuring a copper core, provides a harder, stronger tip that dissipates heat efficiently and resists melting, cracking, and preignition, making it ideal for high-performance applications. The plug's heat range 9 and its one step colder temperature than OEM ensure optimal operation under demanding conditions, including high boost and aggressive tuning. Its design supports better ignitability for fuels like ethanol and reduces the voltage needed for a strong spark, resulting in improved fuel efficiency and engine responsiveness. Compatibility with Dinan ignition coils ensures a seamless upgrade for enthusiasts seeking enhanced ignition performance. The spark plug features a ceramic insulator with a projected insulator design, a 12mm thread diameter, and a 26.5mm thread reach, all crafted with precision to fit specified BMW models. Proper installation torque of 17 Nm and a supplied gap of 0.5mm promote reliable operation and longevity. This EU-made spark plug not only boosts engine performance but also contributes to cleaner emissions, with Prop 65 compliance ensuring safety. Whether used in high-performance tuning or stock setups, the Dinan Iridium Spark Plug offers a significant upgrade to engine ignition components, promoting smoother starts, improved throttle response, and extended service life.
Features:
- Made from iridium for enhanced durability and high melting point
- Heat range 9 for optimal performance across various driving conditions
- One step colder than OEM to prevent preignition and overheating
- Optimized electrode design for difficult fuels like ethanol
- Compatible with Dinan ignition coils for seamless integration
- Ceramic insulator with a projected design for reliable spark delivery
- Thread diameter of 12mm and thread reach of 26.5mm for precise fit
- Supplied with a 0.5mm gap and installation torque of 17 Nm
- Manufactured in the EU with Prop 65 compliance for safety