Denso IU31A Iridium Spark Plug

Maximize your engine's performance with the Denso IU31A Iridium Spark Plug. Engineered for superior ignition and longevity, this spark plug delivers enhanced fuel efficiency and smoother operation. Experience the difference that Denso's cutting-edge technology brings to your ride.

Description

The Denso IU31A Iridium Spark Plug is designed for enthusiasts and professionals seeking the ultimate in ignition performance. Featuring an iridium electrode that is six times harder than platinum and capable of withstanding temperatures up to 4,000°F, this plug ensures exceptional durability and reliability. The ultra-fine 0.4mm iridium electrode reduces voltage requirements while dramatically improving firing performance. A 360° laser-welded electrode provides a robust seal, resisting wear even under extreme conditions. The ground electrode incorporates a tapered cut and U-groove, creating a large volume area at the flame's center for enhanced combustion. This resistor-type spark plug with a 10 mm thread size and 19.1 mm (3/4") thread reach guarantees a precise fit and optimal function.

Features & highlights

• Iridium electrode provides exceptional durability and longevity.
• Ultra-fine 0.4mm electrode enhances firing performance and reduces voltage requirements.
• 360° laser welding ensures a robust seal, even under extreme conditions.
• Tapered cut and U-groove ground electrode maximizes flame volume for improved combustion.
• Resistor type plug minimizes electrical noise and interference.
• Fine wire center electrode provides a focused spark for improved ignition.

Technical specifications

• Brand: DENSO
• Vendor Part Number: IU31A
• Center Electrode Type: Fine Wire
• Electrode Tip Material: Iridium
• Ground Electrode Shape: Angled, Grooved
• Heat Range: 31
• Hex Size: 16 mm (5/8")
• Spark Gap: 0.9 mm
• Thread Reach: 19,1 mm (3/4")
• Thread Size: 10 mm
• Type: Resistor
• Electrical Resistance: 5k Ohms
• Center Electrode Projection: Non-Projected

Important to know

Ensure this spark plug is compatible with your vehicle's specifications before installation. Always follow proper installation procedures.