NGK
NGK Spark Plug Wire Set

NGK 51207 Spark Plug Wire Set

Brand NGK 51207
Insulation Color Blue
Insulation Material Silicone
Noise Suppression Type Yes
Core Material Smag
Universal Or Specific Fit Specific
Insulation Outside Diameter 8.00
Part Number Rc-gmz021
Stock Number 51207
Product line NGK Spark Plug Wire Set
Fits Buick, Oldsmobile, and Pontiac · 13 vehicles

Specific-fit design. Built for direct application matching without universal trimming.

Silicone insulation. Helps resist heat and maintain flexibility during routing.

Noise suppression. Reduces electrical interference in the ignition system.

Cross-references AMS Automotive 6656, AMS Automotive 6657 and Anchor 2922 for the same application. See all 20.

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Free returns within 60 days if it doesn't fit when fitment is verified.

Ignition Wire Set Overview

NGK Spark Plug Wire Set 51207 is a specific-fit ignition wire set built for older GM applications. It uses silicone insulation, a noise-suppression design, and an SMag core to support stable spark delivery and reduced electrical interference.

  • Specific-fit spark plug wire set for direct application matching
  • Silicone insulation for heat resistance and flexible routing
  • Noise suppression design helps reduce ignition interference
  • SMag core supports consistent electrical transfer
  • Blue insulation for easy visual identification during service

Fitment and Application

Compatible with 1988-1989 Buick Electra, 1989 Buick LeSabre, 1988-1989 Buick Reatta, and 1988-1989 Buick Riviera. It also fits 1988-1989 Oldsmobile 98, 1989 Oldsmobile Delta 88, 1988-1989 Oldsmobile Toronado, and 1989 Pontiac Bonneville. This NGK wire set 51207 is a direct-match ignition service part for these vehicles.

Common Issues It Can Address

  • Misfires caused by worn or degraded ignition wires
  • Electrical noise that can affect ignition performance
  • Cracked or heat-aged wire insulation
  • Unstable spark transfer under load
  • Service replacement for aging ignition wire assemblies

Installation Notes and Quality

Verify wire routing, terminal engagement, and cylinder order before installation. Match the replacement to the vehicle-specific application listed above, and inspect related ignition components during service. NGK 51207 is part of NGK Spark Plug Wire Set line, backed by NGK’s OE-focused ignition expertise and manufacturing standards developed for durable, OE-level performance.

This part fits 13 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelLitersCylindersNotes
1989BuickElectra3.8LV6NGK Spark Plug Wire Set
1989BuickLeSabre3.8LV6NGK Spark Plug Wire Set
1989BuickReatta3.8LV6NGK Spark Plug Wire Set
1989BuickRiviera3.8LV6NGK Spark Plug Wire Set
1989Oldsmobile983.8LV6NGK Spark Plug Wire Set
1989OldsmobileDelta 883.8LV6NGK Spark Plug Wire Set
1989OldsmobileToronado3.8LV6NGK Spark Plug Wire Set
1989PontiacBonneville3.8LV6NGK Spark Plug Wire Set
1988BuickElectra3.8LV6NGK Spark Plug Wire Set
1988BuickReatta3.8LV6NGK Spark Plug Wire Set
1988BuickRiviera3.8LV6NGK Spark Plug Wire Set
1988Oldsmobile983.8LV6NGK Spark Plug Wire Set
1988OldsmobileToronado3.8LV6NGK Spark Plug Wire Set
Directly replaces or cross-references 20 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
AMS Automotive — 6656AMS Automotive — 6657Anchor — 2922Anchor — 9660AP Exhaust — 700388Delphi — XS10253Delphi — XS10277DENSO Auto Parts — 671-6007Four Seasons — 86198NGK — 5120735-610235-610535-PF87663671-60040966096198116002116005128634CH8634