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NGK 52040 Spark Plug Wire Set
| Brand | NGK 52040 |
|---|---|
| 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-fdz064 |
| Stock Number | 52040 |
| Product line | NGK Spark Plug Wire Set |
| Fits | Ford and Mercury · 9 vehicles |
OE-standard replacement. Built to meet durability and operational performance expectations.
Silicone insulation. Helps resist heat and wear for dependable ignition performance.
Noise suppression. Reduces electrical interference for cleaner operation.
Cross-references ACI 86873, AMS Automotive 6681 and Anchor 3326 for the same application. See all 15.
NGK Spark Plug Wire Set for Ford and Mercury
NGK Spark Plug Wire Set 52040 is a specific-fit ignition wire set built with blue silicone insulation, noise suppression, and an SMag core. It is made for select Ford Explorer, Explorer Sport, Explorer Sport Trac, and Mercury Mountaineer applications where reliable spark delivery and clean ignition performance matter.
Key Features
- Specific-fit NGK spark plug wire set for confirmed vehicle applications
- Blue silicone insulation for heat resistance and durability
- Noise suppression type helps reduce ignition interference
- SMag core material supports consistent spark transfer
- 8.00 mm insulation outside diameter
- NGK part number 52040 / RC-FDZ064
Product Details
NGK 52040 is part of the NGK Spark Plug Wire Set line, a product family focused on OE-style ignition replacement for domestic and import vehicles. NGK draws on decades of ignition engineering and OE experience to produce replacement ignition components that meet demanding durability and performance expectations. This wire set is engineered for direct application use on 1997-2000 Ford Explorer, 1998-2000 Mercury Mountaineer, 2001 Ford Explorer Sport, and 2001 Ford Explorer Sport Trac vehicles with the listed fitment notes.
This part cross-references BBB Industries 52040 for the same application.
What It Helps Address
- Misfires caused by worn or damaged ignition wires
- Hard starting related to weak spark delivery
- Ignition noise that can interfere with vehicle electronics
- Rough idle from deteriorated wire insulation or core wear
- Voltage leakage from aging spark plug wires
Installation Notes and Tips
Fits 1997-2000 Ford Explorer, Left Hand Drive. Fits 1998-2000 Mercury Mountaineer, Left Hand Drive. Fits 2001 Ford Explorer Sport, to 7/24/2000. Fits 2001 Ford Explorer Sport Trac, to 7/23/2000. Verify engine and vehicle build date against the listed notes before installation. Route each wire to match the original layout and confirm secure terminal engagement at the coil and spark plug ends.
Quality Assurance
NGK manufactures ignition components to OE-level durability and operational standards, supported by its long-standing focus on ignition systems and broad vehicle coverage. Part number 52040 is built as a direct replacement ignition wire set for the listed applications.
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 2001 | Ford | Explorer Sport | 4.0L | V6 | N/A | To 7/24/2000; NGK Spark Plug Wire Set |
| 2001 | Ford | Explorer Sport Trac | 4.0L | V6 | N/A | To 7/23/2000; NGK Spark Plug Wire Set |
| 2000 | Ford | Explorer | 4.0L | V6 | N/A | Left Hand Drive; NGK Spark Plug Wire Set |
| 2000 | Mercury | Mountaineer | 4.0L | V6 | N/A | Left Hand Drive; NGK Spark Plug Wire Set |
| 1999 | Ford | Explorer | 4.0L | V6 | N/A | Left Hand Drive; NGK Spark Plug Wire Set |
| 1999 | Mercury | Mountaineer | 4.0L | V6 | N/A | Left Hand Drive; NGK Spark Plug Wire Set |
| 1998 | Ford | Explorer | 4.0L | V6 | N/A | Left Hand Drive; NGK Spark Plug Wire Set |
| 1998 | Mercury | Mountaineer | 4.0L | V6 | N/A | Left Hand Drive; NGK Spark Plug Wire Set |
| 1997 | Ford | Explorer | 4.0L | V6 | N/A | Left Hand Drive; NGK Spark Plug Wire Set |
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