Denso 5311 IK24 Iridium Power Spark Plugs Set of 4

Denso Iridium Power spark plugs feature a 0.4mm iridium tipped laser welded fine wire center electrode that reduces required voltage and improves firing performance. Tapered cut U-Groove ground electrode increases ignitability and decreases quenching. Machine rolled threads prevent seizing or cross threading during installation and removal. 100% pre-fired to assure the highest quality possible. Purified alumina powder insulator provides exceptional strength and thermal conductivity. Five rib insulator prevents flashover. Copper-glass seal bonds center electrode and insulator for a gas-tight seal.

Specifications

Shell

• Thread Diameter: 14mm
• Thread Pitch: 1.25mm
• Seat Type: Gasket
• Reach: 19mm (3/4")
• Hex Size: 5/8" (16mm)
• Terminal Type: Solid
• Overall Height: ISO
• Gap: .031" (0.8mm)

Center Electrode

• Material: Iridium
• Type: Fine Wire
• Size: 0.4mm
• Projection: Projected

Ground Electrode

• Material: Nickel
• Type: U-Groove
• Shape: Taper Cut
• Quantity: 1

Torque Specs

• Cast Iron: 26-30 lb. ft.
• Aluminum: 15-22 lb. ft.

Specifications

• Resistor: Yes
• Resistor Value: 5k Ohm
• Heat Range: 24
• Longevity: 30k Miles