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NGK 9973 Spark Plug Wire Set
| Brand | NGK 9973 |
|---|---|
| Core Material | Mag (Var. Pitch) |
| Insulation Color | Blue |
| Insulation Material | Silicone |
| Insulation Outside Diameter | 7.00 |
| Noise Suppression Type | Yes |
| Part Number | RC-NE92 |
| Stock Number | 9973 |
| Universal Or Specific Fit | Specific |
| Product line | NGK Spark Plug Wire Set |
| Fits | INFINITI and Nissan · 6 vehicles |
OE-standard quality. Built to meet demanding durability and performance expectations.
Silicone insulation. Helps resist heat and wear for dependable ignition performance.
Noise suppression. Helps reduce electrical interference in the ignition system.
Cross-references Anchor 9277, Anchor 9802 and Anchor 9973 for the same application. See all 23.
NGK Spark Plug Wire Set for OE-Style Ignition Service
The NGK Spark Plug Wire Set, part number 9973, is a specific-fit ignition wire set built for select Nissan and INFINITI applications. It uses blue silicone insulation, a Mag (Var. Pitch) core, and noise suppression to support stable spark delivery and reduced electrical interference.
Compatible With 1986-1988 Nissan Maxima and 1990-1992 INFINITI M30, this NGK Spark Plug Wire Set is a direct replacement option for vehicles that need dependable ignition wire performance. The RC-NE92 design reflects NGK’s OE-focused approach to ignition components.
Key Features
- NGK Spark Plug Wire Set, part number 9973
- Specific-fit application for select Nissan Maxima and INFINITI M30 models
- Blue silicone insulation for heat-resistant wire protection
- Mag (Var. Pitch) core material for ignition signal control
- Noise suppression type: yes
- 7.00 mm insulation outside diameter
- Cross-reference example: DENSO Auto Parts 671-6194
Product Details
NGK Spark Plug Wire Set 9973 is part of NGK’s ignition wire and related components line, which focuses on OE-level replacement parts for domestic and import vehicles. The wire set is engineered as a specific-fit solution rather than a universal application, making it a direct match for the listed Nissan Maxima and INFINITI M30 fitments. For buyers searching for a 1986-1988 Nissan Maxima spark plug wire set or a 1990-1992 INFINITI M30 ignition wire replacement, this part number 9973 provides a targeted fitment reference.
Common Issues This Part Addresses
- Misfires caused by worn or damaged ignition wires
- Hard starting related to weak spark transfer
- Electrical noise that can interfere with ignition performance
- Cracked or deteriorated wire insulation
- Rough idle from inconsistent spark delivery
Installation Notes and Tips
Verify engine application and wire routing before installation. Match each lead to the correct cylinder and coil or distributor connection, and inspect boots, terminals, and nearby ignition components for wear before reassembly. For best results, confirm fitment against the vehicle’s engine configuration before ordering or installing part number 9973.
Quality Assurance
NGK brings more than 80 years of automotive ignition experience and a long OE-focused manufacturing background to this spark plug wire set. The brand’s ignition product line is built around durability, performance, and OE standards for replacement service.
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 1992 | INFINITI | M30 | 3.0L | V6 | N/A | NGK Spark Plug Wire Set |
| 1991 | INFINITI | M30 | 3.0L | V6 | N/A | NGK Spark Plug Wire Set |
| 1990 | INFINITI | M30 | 3.0L | V6 | N/A | NGK Spark Plug Wire Set |
| 1988 | Nissan | Maxima | 3.0L | V6 | N/A | NGK Spark Plug Wire Set |
| 1987 | Nissan | Maxima | 3.0L | V6 | N/A | NGK Spark Plug Wire Set |
| 1986 | Nissan | Maxima | 3.0L | V6 | N/A | NGK Spark Plug Wire Set |
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