NGK 51030 Spark Plug Wire Set

NGK Spark Plug Wire Set for GM 4.3L Applications

The NGK Spark Plug Wire Set, part number 51030, is a specific-fit ignition wire set built for select Chevrolet S10, GMC Sonoma, and Isuzu Hombre applications. It uses silicone insulation, a blue outer jacket, and noise suppression construction to support stable ignition performance and cleaner signal delivery.

Key Features

• Specific-fit spark plug wire set for confirmed vehicle applications
• Silicone insulation for heat resistance and durability
• Blue insulation color for easy visual identification
• Noise suppression type construction
• SMag core material
• Insulation outside diameter: 7.00
• NGK part number 51030 / stock number 51030

Product Details

NGK Spark Plug Wire Set 51030 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 for domestic and import vehicles, with an emphasis on durability and operational performance that aligns with original equipment standards. This part cross-references DENSO Auto Parts 671-4045 for the same application.

Vehicle Fitment

• Fits 1998-2003 Chevrolet S10, N/A
• Fits 1998-2003 GMC Sonoma, N/A
• Fits 1998-2000 Isuzu Hombre, N/A

Common Issues This Part Addresses

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

Installation Notes

Verify the vehicle application before installation and route each wire to match the original layout. Inspect spark plugs, distributor components, and coil connections at the same time to avoid repeat ignition faults. Confirm the wire ends seat fully and that the insulation is kept away from hot or moving engine components.

Quality Assurance

NGK is known for OE-focused ignition manufacturing and global automotive coverage. This spark plug wire set is produced to meet durability and performance expectations for replacement use on the listed Chevrolet S10, GMC Sonoma, and Isuzu Hombre applications.