NGK 51429 Spark Plug Wire Set

NGK Spark Plug Wire Set for OE-Style Ignition Service

The NGK Spark Plug Wire Set, part number 51429, is a specific-fit ignition wire set built for select Buick and Jeep applications. It uses blue silicone insulation, a 7.00 mm outside diameter, and noise suppression to support stable spark delivery and reduced electrical interference.

NGK Spark Plug Wire Set 51429 is part of NGK’s ignition product line, which focuses on replacement ignition components for domestic and import vehicles. This wire set is engineered with SMag core material and OE-oriented durability standards for drivers servicing classic Buick LeSabre, Riviera, Skylark, and 1971 Jeep Wagoneer applications.

Key Features

• Specific-fit spark plug wire set for confirmed vehicle applications
• Blue silicone insulation for heat resistance and flexibility
• 7.00 mm insulation outside diameter
• SMag core material for ignition signal transfer
• Noise suppression type: yes
• NGK part number 51429 / RC-GMX033

Vehicle Fitment

• Fits 1960-1964 Buick LeSabre, N/A
• Fits 1967-1972 Buick LeSabre, N/A
• Fits 1963-1972 Buick Riviera, N/A
• Fits 1965-1972 Buick Skylark, N/A
• Fits 1971 Jeep Wagoneer, N/A

What This Wire Set Helps Address

• Misfires caused by worn or damaged ignition wires
• Hard starting related to weak spark transfer
• Radio-frequency interference in ignition systems
• Cracked or heat-aged wire insulation
• Rough idle from inconsistent spark delivery

Installation Notes and Tips

Match each wire to the correct cylinder before removal to preserve firing order. Inspect boots, routing, and nearby heat sources during installation, and confirm the wires are fully seated at the spark plug and distributor or coil connection points. For best results, replace wires as a matched set when servicing the ignition system on Buick LeSabre, Buick Riviera, Buick Skylark, or Jeep Wagoneer applications.

Quality Assurance

NGK has extensive OE experience and a long history in ignition components, including spark plugs, coils, boots, and wire sets. This part cross-references MagnaFlow Exhaust Products 51429 for the same application.