NGK 51073 Spark Plug Wire Set

NGK Spark Plug Wire Set for OE-Style Ignition Service

The NGK Spark Plug Wire Set 51073 is a vehicle-specific ignition wire set built for direct replacement on select GM cars and vans from 1996-1999. It uses silicone insulation, a Ferro Mag core, and noise suppression construction to support stable spark delivery and reduced electrical interference.

Compatible with applications such as the 1996-1999 Chevrolet Lumina, 1997-1999 Pontiac Grand Prix, and 1996-1999 Oldsmobile Silhouette, this NGK Spark Plug Wire Set is built for drivers replacing worn ignition leads on domestic and import vehicles. Part number 51073 is also referenced as RC-GMX068.

Key Features

• Specific-fit spark plug wire set for select GM applications
• Silicone insulation for heat resistance and durability
• Blue insulation color for easy visual identification
• Ferro Mag core construction
• Noise suppression design to help reduce ignition interference
• 7.00 mm outside diameter insulation
• NGK part number 51073 / RC-GMX068

Product Details

NGK Spark Plug Wire Set 51073 is part of NGK’s ignition product line, which includes spark plugs, glow plugs, ignition coils, coil-on-plug boots, and wire sets. NGK applies its OE-focused manufacturing experience to replacement ignition components built to meet durability and operational performance expectations for everyday service. This wire set is a specific-fit replacement for select Buick, Chevrolet, Oldsmobile, and Pontiac models, including the Buick Century, Chevrolet Monte Carlo, Oldsmobile Cutlass, and Pontiac Trans Sport.

This part cross-references Bosch 9780 for the same application.

What It Helps Address

• Misfires caused by aged or damaged plug wires
• Hard starting related to weak spark transfer
• Rough idle from inconsistent ignition delivery
• Radio-frequency interference from worn suppression components
• Cracked, brittle, or heat-damaged ignition wires

Installation Notes and Tips

Verify engine application and wire routing before installation. Match each lead to the correct cylinder and ignition coil or distributor terminal, and inspect boots, terminals, and adjacent ignition components for wear while servicing the vehicle. This specific-fit wire set is intended for direct replacement on confirmed applications such as 1996-1999 Chevrolet Lumina, 1997-1999 Buick Century, and 1996-1999 Pontiac Grand Am.

Quality Assurance

NGK is known for OE-oriented ignition component manufacturing and global automotive coverage. The 51073 spark plug wire set is produced to support consistent replacement performance in the vehicles listed in the fitment data.