NGK 51422 Spark Plug Wire Set

NGK Spark Plug Wire Set for Classic GM Applications

NGK Spark Plug Wire Set 51422 is a specific-fit ignition wire set built for classic domestic vehicles that need reliable spark delivery and noise suppression. With blue silicone insulation, a 7.00 mm outside diameter, and an SMag core, this set is suited for restoring ignition performance on older Chevrolet, Buick, Oldsmobile, and Pontiac applications.

Key Features

• Specific-fit NGK spark plug wire set for confirmed vehicle applications
• Blue silicone insulation for heat resistance and durability
• 7.00 mm insulation outside diameter
• Noise suppression type: yes
• SMag core material for ignition signal control
• NGK part number 51422 and stock number 51422
• Cross-reference: Four Seasons 86203

Product Details

NGK 51422 is part of the NGK Spark Plug Wire Set line, a product family focused on ignition components for domestic and import vehicles. NGK draws on extensive OE experience and long-term automotive manufacturing expertise to produce replacement ignition parts that meet OE-level durability and operational expectations. This wire set is a direct replacement choice for vehicles such as the 1961-1965 Chevrolet Impala, 1961-1965 Chevrolet Bel Air, 1961-1972 Oldsmobile Cutlass, and 1960-1972 Oldsmobile 98, along with other listed Buick, Oldsmobile, and Pontiac models.

For buyers searching for a classic GM spark plug wire set, NGK 51422 offers the correct fitment profile for specific applications rather than a universal design. The silicone insulation and noise suppression construction support stable ignition performance and help maintain clean signal transfer in older ignition systems. If you need an NGK spark plug wire set for Oldsmobile Cutlass, Chevrolet Impala, or Buick Skylark applications, part number 51422 is the catalog reference to verify.

What It Helps Address

• Misfires caused by worn or deteriorated ignition wires
• Radio-frequency interference in ignition systems
• Cracked or heat-aged wire insulation
• Weak spark transfer from coil to spark plugs
• Restoration work on classic Chevrolet, Buick, Oldsmobile, and Pontiac vehicles

Installation Notes

Verify engine and vehicle application before installation, since this is a specific-fit wire set. Route each lead away from exhaust heat and moving components, and match the wire ends to the correct spark plug and distributor locations. Confirm the wire length, boot seating, and terminal engagement during installation to maintain proper ignition performance.

Quality Assurance

NGK manufactures ignition products with a focus on OE-style durability and performance standards. Part number 51422 reflects NGK’s ignition specialization and is backed by the brand’s long-standing experience in spark plugs, coils, boots, and wire sets.