NGK 51114 Spark Plug Wire Set

NGK Spark Plug Wire Set for OE-Style Ignition Service

NGK Spark Plug Wire Set 51114 is a specific-fit ignition wire set built for select Chevrolet and GMC trucks and vans from 1994-1997. It uses blue silicone insulation, noise suppression, and an SMag core to support stable spark delivery and cleaner ignition performance.

Key Features

• Specific-fit spark plug wire set for confirmed vehicle applications
• Blue silicone insulation for heat resistance and durability
• Noise suppression design helps reduce ignition interference
• SMag core construction for consistent electrical performance
• 7.00 mm insulation outside diameter
• NGK part number 51114, also identified as RC-GMX054

Detailed Product Overview

NGK Spark Plug Wire Set 51114 is part of NGK’s ignition product line, which focuses on replacement ignition components for domestic and import vehicles. NGK draws on long-term OE experience and controlled manufacturing practices to produce ignition parts that meet OE-level expectations for durability and operation. This wire set is a direct-fit solution for applications including 1994-1997 Chevrolet P30, 1994-1995 Chevrolet C2500, C2500 Suburban, C3500, G30, K2500, K2500 Suburban, and K3500, as well as 1994-1997 GMC P3500 and 1994-1995 GMC C2500, C2500 Suburban, C3500, G3500, K2500, K2500 Suburban, and K3500. If you are servicing a Chevrolet C2500 or GMC K3500 ignition system, part number 51114 provides a specific-fit replacement built around the listed applications.

This part cross-references DENSO Auto Parts 671-8021 for the same application.

What It Helps Address

• Misfires caused by worn or damaged plug wires
• Ignition noise that can interfere with engine electronics
• Hard starting related to weak spark transfer
• Rough idle from inconsistent ignition delivery
• Voltage leakage from deteriorated wire insulation

Installation Notes and Tips

Verify engine application against the listed fitment before installation. Route each wire to match the original layout and keep the wires separated from hot exhaust components and sharp edges. Inspect distributor cap, rotor, and spark plugs at the same time so the new wire set works with the rest of the ignition system. Confirm terminal engagement at each connection point before starting the engine.

Quality Assurance

NGK positions this wire set within its ignition specialist product range, backed by decades of automotive experience and OE-focused manufacturing. The blue silicone construction, noise suppression design, and specific-fit application coverage reflect a replacement part built for dependable service on the listed Chevrolet and GMC models.