6 Pack For NGK Ruthenium HX Spark Plugs 2006-2008 for Lexus RX400h V6 3.3L Product Description: Enhance your Lexus RX400h's engine performance with the For NGK Ruthenium HX Spark Plugs . Designed with advanced ruthenium technology, these spark plugs provide superior wear resistance, optimal ignition efficiency, and improved fuel combustion. Engineered to meet or exceed OEM standards, they deliver reliable and long-lasting performance for your luxury hybrid SUV. Features & Benefits: 🔧 Ruthenium Alloy Construction – Provides exceptional wear resistance and durability 🔧 High Ignition Efficiency – Promotes consistent combustion for better engine performance 🔧 Pre-Gapped for Easy Installation – No additional adjustments needed 🔧 Direct OEM Fit – Ensures hassle-free installation with no modifications 🔧 Optimized Fuel Economy – Supports smoother acceleration and reduced emissions For : ✅ Designed for 2006-2008 Lexus RX400h V6 3.3L engines ✅ OEM replacement part for precise fitment and function ✅ Check owner's manual for proper fitment Specifications: Thread Size: 14 mm Reach: 19.0 mm (0.75 inches) Hex Size: 16 mm (5/8 inch) Seat Type: Gasket Resistor: Yes Center Electrode Tip Material: Ruthenium Ground Electrode Tip Material: Nickel Alloy Pre-Gap Size: 0.044 inches Center Electrode Core Material: Copper Manufacturer Heat Range: 5 Lexus RX400h's ignition system with these high-performance For NGK Ruthenium HX spark plugs! 🔧🚙MPN 94279; Material Copper, Nickel, Ruthenium; Fuel Type Gasoline; Interchange Part Number FR6AHXS; OE/OEM Part Number 94279; Classification High-Performance Spark Plug; Compatible Year 2006 2007 2008; Other Ruthenium HX;