8 Pack NGK Iridium IX 6509 Spark Plugs LTR6IX-11 ps

The NGK 6509 Iridium IX Spark Plug (LTR6IX-11) is designed for high-performance ignition, superior durability, and improved throttle response in modern engines. Featuring an ultra-fine iridium center electrode and a tapered ground electrode, it ensures efficient combustion, reduced misfires, and long-lasting reliability under demanding conditions.

Features & Benefits:

🔧 Iridium center electrode delivers long life and stable spark
🔧 Tapered ground electrode enhances flame propagation
🔧 Fine-wire design improves ignitability and acceleration
🔧 Pre-gapped at 1.1mm for fast, OE-style installation

Specifications:

Brand & Part Number: NGK 6509 (LTR6IX-11)
Material: Iridium
Thread Size: 14mm
Reach: 25mm (0.98 in)
Hex Size: 5/8 in (16mm)
Heat Range: 6
Seat Type: Gasket
Resistor: Yes
Gap: 1.1mm (0.043 in)

Choose NGK LTR6IX-11 Iridium IX for powerful ignition, long service life, and dependable performance in today’s advanced engines—order now!