DENSO 5712 Iridium Racing Spark Plug - IQ02-31

The DENSO 5712 IQ02-31 Iridium Racing spark plug is a premium, no-compromise racing spark plug engineered specifically for high-performance and racing applications. This professional-grade plug delivers exceptional ignition performance under the most demanding conditions.

Advanced Electrode Technology:

• Ultra-fine 0.4mm iridium-rhodium alloy center electrode reduces voltage requirements and greatly improves ignition performance
• 100% pure platinum 0.8mm ground electrode minimizes wear and reduces the risk of melting under harsh racing conditions
• Patented self-cleaning electrode design prevents fouling

Racing-Specific Features:

• Special hardened insulator that is 20% stronger for hardcore racing applications
• Handles extreme compression and boost levels
• Purified alumina powder insulator provides exceptional strength and thermal conductivity
• Five-rib insulator design prevents flashover
• Silicone oil-coated insulator repels moisture and carbon buildup

Quality Construction:

• DENSO patented 360-degree laser welding process ensures exceptional bond quality and structural strength
• Machine-rolled threads prevent seizing or cross-threading during installation and removal
• 100% pre-fired to assure the highest quality
• Copper-glass seal bonds center electrode and insulator for a gas-tight seal
• Anti-corrosive glossy nickel plating provides superior corrosion resistance
• Built-in monolithic resistor body reduces electrical interference

The DENSO 5712 is ideal for racing and highly tuned engines where ultimate performance, reliability, and durability are essential. Heat range 31.