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NGK 3878 Spark Plug Wire Set
Reliable Ignition Performance for Hyundai and Kia Vehicles
The NGK Spark Plug Wire Set 3878 is designed specifically for select Hyundai and Kia models, including the Magentis, Optima, Santa Fe, Sonata, and Tiburon. Engineered to deliver consistent ignition performance, this spark plug wire set ensures efficient power transfer and noise suppression for smooth engine operation.
- Insulation Color: Blue for easy identification
- Durable Silicone Insulation Material
- Noise Suppression Type: Yes, reduces electromagnetic interference
- Core Material: Magnesium with variable pitch for optimal conductivity
- Insulation Outside Diameter: 7.00 mm
- Specific fit for Hyundai and Kia models
- Part Number: Rc-xx91 (Stock Number 3878)
About the NGK Spark Plug Wire Set Product Line
The NGK Spark Plug Wire Set line focuses on delivering precise fitment and reliable ignition wire components tailored to specific vehicle applications. This product line emphasizes quality materials such as silicone insulation and magnesium core wires to maintain consistent electrical performance and reduce noise interference. The NGK Spark Plug Wire Set 3878 is part of this line, engineered to meet the ignition demands of Hyundai and Kia vehicles with exact specifications.
Product Details and Technical Specifications
This spark plug wire set features a silicone insulation material that offers excellent heat resistance and durability, suitable for the high-temperature environment of the engine bay. The blue insulation color aids in quick identification during maintenance. The magnesium core with variable pitch design enhances electrical conductivity while minimizing resistance, contributing to efficient spark delivery. Noise suppression is integrated to reduce electromagnetic interference, protecting sensitive electronic components in your Hyundai or Kia vehicle. The 7.00 mm insulation outside diameter balances flexibility and protection for reliable performance.
Common Applications and Issues Addressed
- Replacement for worn or damaged spark plug wires on Hyundai Magentis, Optima, Santa Fe, Sonata, and Tiburon
- Eliminates misfires caused by faulty ignition wires
- Reduces engine noise and radio interference due to noise suppression
- Improves engine starting and overall ignition system reliability
- Prevents voltage leaks and power loss in ignition system
Installation Notes and Tips
Ensure the engine is cool before beginning installation. Remove old spark plug wires one at a time to avoid mixing connections. Match the wire length and routing to the original setup to maintain proper fit and performance. Use dielectric grease on the spark plug boots to facilitate installation and prevent moisture intrusion. Verify secure connections at both the spark plug and ignition coil ends.
Quality Assurance and Warranty
NGK Spark Plug Wire Set 3878 is manufactured to meet OEM specifications for fit and function. The use of high-quality silicone insulation and magnesium core materials ensures durability and consistent performance. While specific warranty details are not provided, NGK products typically adhere to strict quality control standards to support reliable ignition system operation.
| Brand | NGK |
| Part Number | 3878 |
| Position | NGK Spark Plug Wire Set |
| Core Material | Mag (Var. Pitch) |
| Insulation Color | Blue |
| Insulation Material | Silicone |
| Insulation Outside Diameter | 7.00 |
| Noise Suppression Type | Yes |
| Part Number | RC-XX91 |
| Stock Number | 3878 |
| Universal Or Specific Fit | Specific |
This part fits 31 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 2008 | Hyundai | Tiburon | 2.7L | V6 | N/A | NGK Spark Plug Wire Set |
| 2007 | Hyundai | Tiburon | 2.7L | V6 | N/A | NGK Spark Plug Wire Set |
| 2006 | Hyundai | Santa Fe | 2.7L | V6 | N/A | NGK Spark Plug Wire Set |
| 2006 | Hyundai | Tiburon | 2.7L | V6 | N/A | NGK Spark Plug Wire Set |
| 2006 | Kia | Magentis | 2.7L | V6 | N/A | NGK Spark Plug Wire Set |
| 2006 | Kia | Optima | 2.7L | V6 | N/A | Except Mid Model Year; NGK Spark Plug Wire Set |
| 2005 | Hyundai | Santa Fe | 2.7L | V6 | N/A | NGK Spark Plug Wire Set |
| 2005 | Hyundai | Sonata | 2.7L | V6 | N/A | NGK Spark Plug Wire Set |
| 2005 | Hyundai | Tiburon | 2.7L | V6 | N/A | NGK Spark Plug Wire Set |
| 2005 | Kia | Magentis | 2.7L | V6 | N/A | NGK Spark Plug Wire Set |
| 2005 | Kia | Optima | 2.7L | V6 | N/A | NGK Spark Plug Wire Set |
| 2004 | Hyundai | Santa Fe | 2.7L | V6 | N/A | NGK Spark Plug Wire Set |
| 2004 | Hyundai | Sonata | 2.7L | V6 | N/A | NGK Spark Plug Wire Set |
| 2004 | Hyundai | Tiburon | 2.7L | V6 | N/A | NGK Spark Plug Wire Set |
| 2004 | Kia | Magentis | 2.7L | V6 | N/A | NGK Spark Plug Wire Set |
| 2004 | Kia | Optima | 2.7L | V6 | N/A | NGK Spark Plug Wire Set |
| 2003 | Hyundai | Santa Fe | 2.7L | V6 | N/A | NGK Spark Plug Wire Set |
| 2003 | Hyundai | Sonata | 2.7L | V6 | N/A | NGK Spark Plug Wire Set |
| 2003 | Hyundai | Tiburon | 2.7L | V6 | N/A | NGK Spark Plug Wire Set |
| 2003 | Kia | Magentis | 2.7L | V6 | N/A | NGK Spark Plug Wire Set |
| 2003 | Kia | Optima | 2.7L | V6 | N/A | NGK Spark Plug Wire Set |
| 2002 | Hyundai | Santa Fe | 2.7L | V6 | N/A | NGK Spark Plug Wire Set |
| 2002 | Hyundai | Sonata | 2.7L | V6 | N/A | NGK Spark Plug Wire Set |
| 2002 | Kia | Magentis | 2.7L | V6 | N/A | NGK Spark Plug Wire Set |
| 2002 | Kia | Optima | 2.7L | V6 | N/A | NGK Spark Plug Wire Set |
| 2001 | Hyundai | Santa Fe | 2.7L | V6 | N/A | NGK Spark Plug Wire Set |
| 2001 | Hyundai | Sonata | 2.5L | V6 | N/A | NGK Spark Plug Wire Set |
| 2001 | Kia | Magentis | 2.5L | V6 | N/A | NGK Spark Plug Wire Set |
| 2001 | Kia | Optima | 2.5L | V6 | N/A | NGK Spark Plug Wire Set |
| 2000 | Hyundai | Sonata | 2.5L | V6 | N/A | NGK Spark Plug Wire Set |
| 1999 | Hyundai | Sonata | 2.5L | V6 | N/A | NGK Spark Plug Wire Set |
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
This part directly replaces or is cross-referenced with the following part numbers:
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.