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NGK 6401 Spark Plug Wire Set
| Brand | NGK 6401 |
|---|---|
| Core Material | Mag (Var. Pitch) |
| Insulation Color | Blue |
| Insulation Material | Silicone |
| Insulation Outside Diameter | 5.00 |
| Noise Suppression Type | Yes |
| Part Number | RC-TE119 |
| Stock Number | 6401 |
| Universal Or Specific Fit | Specific |
| Product line | NGK Spark Plug Wire Set |
| Fits | Lexus · 6 vehicles |
OE-standard quality. Built to meet original-equipment 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 9355, DENSO Auto Parts 671-8143 and Four Seasons 55958 for the same application. See all 15.
NGK Spark Plug Wire Set for Lexus V8 Applications
The NGK Spark Plug Wire Set 6401 is a specific-fit ignition wire set built for select Lexus LS400 and SC400 models. 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 Lexus applications
- Silicone insulation with a 5.00 mm outside diameter
- Blue insulation color for easy visual identification
- Mag (Var. Pitch) core material for noise suppression
- NGK part number 6401 / RC-TE119
- Cross-reference: DENSO Auto Parts 671-8143
Product Details
NGK Spark Plug Wire Set 6401 is part of NGK’s ignition product line, which includes spark plugs, glow plugs, ignition coils, coil-on-plug boots, and wire sets. NGK draws on more than 80 years of automotive experience and OE-focused engineering to produce ignition components for domestic and import vehicles. This wire set is built to OE standards for durability and operational performance, making it a direct replacement choice for 1995-1997 Lexus LS400 and 1995-1997 Lexus SC400.
Fits 1995-1997 Lexus LS400, N/A. Fits 1995-1997 Lexus SC400, N/A. The NGK 6401 spark plug wire set is a practical replacement for drivers searching for a Lexus LS400 spark plug wire set or a Lexus SC400 ignition wire set with specific-fit coverage.
Common Issues This Part Can Address
- Misfires caused by worn or damaged ignition wires
- Hard starting related to weak spark delivery
- Ignition noise that can interfere with engine operation
- Cracked or heat-aged wire insulation
- Uneven engine performance from deteriorated wire resistance
Installation Notes and Tips
Verify the vehicle year and engine application before installation. Route each wire to match the original layout and keep the wires separated from hot exhaust components and sharp edges. Confirm secure terminal engagement at the spark plug and ignition connection points to maintain consistent spark transfer.
Quality Assurance
NGK is known for OE-focused ignition engineering and global manufacturing standards. Part number 6401 is produced to meet durability and operational performance expectations for replacement ignition service.
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 1997 | Lexus | LS400 | 4.0L | V8 | N/A | NGK Spark Plug Wire Set |
| 1997 | Lexus | SC400 | 4.0L | V8 | N/A | NGK Spark Plug Wire Set |
| 1996 | Lexus | LS400 | 4.0L | V8 | N/A | NGK Spark Plug Wire Set |
| 1996 | Lexus | SC400 | 4.0L | V8 | N/A | NGK Spark Plug Wire Set |
| 1995 | Lexus | LS400 | 4.0L | V8 | N/A | NGK Spark Plug Wire Set |
| 1995 | Lexus | SC400 | 4.0L | V8 | N/A | NGK Spark Plug Wire Set |
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