NGK 51377 Spark Plug Wire Set 8-Wire with Coil Lead, Blue Silicone

The NGK 51377 (RC-GMX007) is an 8-wire spark plug wire set with coil lead, engineered as a direct-fit, standard replacement for select 1973–1974 Oldsmobile applications. NGK's ultra-low resistance mag core wire sets deliver outstanding ignition performance and long-term durability. The set features a high-temperature premium silicone outer jacket paired with inner EPDM/silicone insulation to contain high-voltage currents and provide excellent dielectric strength. A stainless steel winding over a premium ferrite magnetic core produces ultra-low resistance, a more powerful spark, and effective EMI/RFI noise suppression.

Key Features:

• Complete 8-wire set including coil lead
• Blue silicone outer insulation with 7mm outside diameter
• High-temp premium silicone outer jacket and EPDM/silicone inner insulation for excellent dielectric strength
• Stainless steel winding over premium ferrite magnetic core for ultra-low resistance and superior EMI/RFI noise suppression
• 8 straight (180°) silicone spark plug boots glued to cable with silicone sealer for a watertight seal
• 90° distributor/coil end boot, black
• Stainless steel terminals with up to 3 serrated crimps for maximum terminal retention strength
• Locking C-shaped spring clip with corrosion-resistant plating ensures secure, positive spark plug terminal connection
• OE or better specified boots for precise fit, performance, and durability
• Built-in noise suppression; no wire separators included

Backed by NGK's global OE ignition expertise and more than 80 years of automotive experience, this wire set meets or exceeds OE standards for fit and performance. Fits select 1973–1974 Oldsmobile vehicles. California Prop 65 Warning: Cancer — www.P65Warnings.ca.gov.