NGK 51257 (RC-GMZ027) Spark Plug Wire Set - Ignition Cable Set

The NGK 51257 spark plug wire set (also listed as RC-GMZ027) is an OE-quality replacement ignition wire set, also called a plug wire set or ignition cable set. It carries high-voltage current from the ignition coil or distributor to the spark plugs. Fresh wires help restore smooth idle, steady power delivery and reliable starting when worn or cracked wires are causing misfires.

Key Features:

• 8mm ultra-low resistance magnetic core with wire-wound construction
• Variable pitch wire winding that helps suppress radio frequency interference
• High-temperature silicone jacket resists underhood temperatures up to 482°F (250°C)
• Premium fiberglass braid reinforcement over EPDM/silicone inner insulation for strong dielectric and tensile properties
• Stainless steel terminals with positive locking for a tight, vibration-resistant, corrosion-resistant connection
• Silicone seal at the spark plug boot
• OEM-specification or better spark plug and distributor boots
• Numbered cylinder leads and color-coded coil wires for easy, accurate installation

NGK is The Ignition Specialist™, with more than 80 years of automotive experience and extensive OE expertise. These wires are built to meet OE standards for durability and operating performance.