NGK 51440 Spark Plug Wire Set

NGK Spark Plug Wire Set for GM V8 Applications

The NGK Spark Plug Wire Set, part number 51440, is a specific-fit ignition wire set built for a wide range of GM vehicles from 2008 through 2015. It uses silicone insulation, a Ferro Mag core, and noise suppression construction to support stable spark delivery and reduced ignition interference.

NGK’s Spark Plug Wire Set line draws on the brand’s long OE-focused ignition experience, with replacement parts engineered to meet demanding durability and performance expectations. This set is a direct replacement choice for drivers servicing Chevrolet Camaro, Silverado, Corvette, and related Cadillac, GMC, and Hummer applications.

Key Features

• Specific-fit NGK Spark Plug Wire Set for confirmed GM applications
• Silicone insulation with blue outer jacket
• Ferro Mag core material for ignition performance
• Noise suppression type: yes
• Insulation outside diameter: 7.00
• Part number 51440, also identified as RC-GMX113

Detailed Description

NGK 51440 is a replacement spark plug wire set for vehicles including the 2009-2015 Cadillac CTS, 2010-2015 Chevrolet Camaro, 2009-2015 Chevrolet Silverado 2500 HD, 2009-2014 GMC Yukon, and 2009-2013 Chevrolet Corvette. It also covers additional GM platforms such as the Express, Savana, Sierra, Tahoe, Suburban, Avalanche, Colorado, Canyon, H3, and more. This part cross-references Gates 51440 for the same application.

Built with silicone insulation and a Ferro Mag core, this wire set is intended to maintain consistent ignition signal transfer while helping suppress electrical noise. The NGK Spark Plug Wire Set line is backed by NGK’s OE-oriented manufacturing approach and broad vehicle coverage across domestic and import ignition service needs.

What It Helps Address

• Misfires caused by worn or damaged ignition wires
• Rough idle from inconsistent spark delivery
• Ignition noise that can interfere with engine operation
• Hard starting related to degraded wire insulation
• Performance loss from cracked or heat-aged plug wires

Installation Notes and Tips

Verify vehicle application by year, make, and model before ordering. This NGK 51440 wire set is a specific-fit part, so routing and terminal placement should match the original configuration on the vehicle. Inspect spark plugs, coil connections, and boots during service to confirm the ignition system is in good condition before installation.

Quality Assurance

NGK is known for OE-focused ignition manufacturing and global automotive coverage. Part number 51440 is produced to support durability and operational performance expectations for replacement ignition service on confirmed GM applications.