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Product Information

Product Details
Part No. 3403
Warranty Details (1 YR REPLACEMENT IF DEFECTIVE)
Engineered to meet the highest OE standards for performance, durability, and emissions, this Iridium Long-Life Spark Plug is a top-tier choice for your vehicle. Featuring DENSO's patented Iridium Alloy with a 90% Iridium fine wire center electrode, it delivers sustained spark performance for over 100,000 miles, lasting up to three times longer than conventional plugs. The platinum ground electrode ensures extended life, while the 360-degree laser welding process guarantees a superior bond and structural integrity. Designed to endure extreme temperatures exceeding 4,000 Deg F, this spark plug is ideal for high-performance ignition systems and specialized fuel setups. With a flat seat type and cutting-edge technology, it offers exceptional reliability and efficiency, making it a valuable upgrade for long-lasting engine performance.

Product Features:
  • Latest OE technology with DENSO's patented Iridium Alloy (90 percent Ir) and fine wire center electrode
  • Platinum ground electrode for extended life
  • DENSO Patented 360 degree laser welding process: Ensuring exceptional quality bond and structural strength with the Iridium Center Electrode
  • Sustained spark performance over 100,000 miles
  • Lasts up to three times as long as conventional plugs
  • Endures extreme temperatures greater than 4,000 degrees F associated with high-performance ignition and special fuel systems
  • Iridium Long Life
Specifications
Electrode Core Material:
Copper

Electrode Tip Material:
0.7mm Iridium

Ground Strap Quantity:
1

Insulator Type:
Purified Alumina

Manufacturer Heat Range:
20

Material:
0.7mm Iridium

Reach:
3/4 in

Resistor:
Yes

Seat Type:
Gasket

Thread Diameter:
14 mm

Tip Configuration:
0.7mm Iridium

Type:
Iridium Long Life

Wrench Diameter:
5/8 in
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