NGK 51109 RC-GMX049 Spark Plug Wire Set, 7mm Blue Silicone Ignition Wires

The NGK 51109 spark plug wire set (also called ignition wires or plug cables, NGK series RC-GMX049) carries high-voltage current from the ignition system to the spark plugs. It uses an ultra-low resistance magnetic core and is built to OE tolerances. NGK has a long record as an ignition specialist and as an OE supplier.

Key Features:

• 7mm blue silicone jacket that withstands temperatures above 250°C (482°F)
• Inner EPDM/silicone insulation contains high-voltage current for strong dielectric strength
• Ferrite magnetic core with stainless steel winding for low resistance and a stronger spark
• EMI/RFI noise suppression helps limit radio static and interference with electronic engine controls
• OE-specified or better spark plug and distributor boots, glued to the cable with silicone sealer for a watertight seal
• Stainless steel terminals with serrated crimps that grip the cable jacket and insulation for strong terminal retention
• Locking C-shaped spring clip with corrosion-resistant plating for a secure plug terminal connection
• 90-degree spark plug boots and cylinder lead identification tags to simplify installation

Specifications:

• Manufacturer part number: 51109 (RC-GMX049)
• Wire diameter: 7mm
• Core: ferromagnetic (ferro mag)
• Insulation: silicone / rubber
• Color: blue
• UPC: 087295511091

Cross-references: Bosch 09717, Delphi XS10225, DENSO 671-8046, Autolite 96651, Federal Parts 3119.

This direct-fit replacement set restores ignition performance and helps remove misfires caused by worn or cracked plug wires.