8 Pack NGK Iridium IX Spark Plugs 2002-2007 for Dodge Ram 1500 V8-4.7L ps

The NGK 6441 Iridium IX Spark Plug (ZFR6FIX-11) is engineered for high-performance ignition, superior durability, and fuel efficiency in modern engines. With an ultra-fine iridium center electrode and tapered ground electrode, it provides quicker starts, reduced misfires, and long-lasting performance under demanding driving conditions.

Features & Benefits:

🔧 Iridium tip delivers long-lasting spark and high ignitability
🔧 Tapered ground electrode improves flame propagation and performance
🔧 Resists fouling and ensures stable combustion
🔧 Pre-gapped at 1.1mm for fast, OE-style installation

Specifications:

Brand & Part Number: NGK 6441 (ZFR6FIX-11)
Material: Iridium
Thread Size: 14mm
Reach: 19mm (0.75 in)
Hex Size: 5/8 in (16mm)
Heat Range: 6
Seat Type: Gasket
Resistor: Yes
Gap: 1.1mm (0.043 in)

Choose NGK ZFR6FIX-11 Iridium IX for long-life ignition performance, improved engine efficiency, and reliable starts—order now!