Whipple Superchargers NGK Iridium Spark Plug Box of 8 (LTR7IX-11) WSP-COYO

These NGK Iridium IX spark plugs feature an ultra-fine center electrode designed to balance durability with a precise, consistent spark. The fine-wire iridium tip helps reduce the voltage required for a spark while maintaining the strength and longevity expected from a premium performance spark plug.

Iridium is significantly harder than the metals commonly used in traditional spark plugs, allowing NGK to produce a plug that supports reliable spark performance, strong service life, and improved consistency. This makes the LTR7IX a strong option for performance-minded applications where spark quality and durability matter.

Whipple highly recommends this spark plug for Ford F-150, F-250, and SVT Raptor 6.2L based engines running a supercharger at standard boost levels.

Specifications

Resistor: Yes
Manufacturer Heat Range: 7
Electrode Core Material: Copper
Electrode Tip Material: Iridium
Insulator Type: Projected
Spark Plug Thread Size: 14mm
Spark Plug Reach: 0.984 in.
Spark Plug Seat Style: Tapered
Wrench Diameter: 5/8 in.
Ground Strap Quantity: One
NGK Part Number: LTR7IX-11
Stock Number: NGK-6510
Quantity: Sold as a set of 8
NGK LTR7IX Spark Plugs (Set of 8)
Electrical
SKU:WSP-COYO
NGK Iridium IX spark plug set
Ultra-fine iridium center electrode for accurate, consistent spark
Heat range 7 with resistor design
Recommended by Whipple for Ford F-150, F-250, and SVT Raptor 6.2L supercharged applications at standard boost levels
Sold as a set of 8