HomeIgnition > Ignition Wire and Related ComponentsNGK 3878 Spark Plug Wire Set
Part #: 3878

NGK 3878 Spark Plug Wire Set

NGK Spark Plug Wire Set
⚙️ 31 vehicles fit this part
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Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
📦NGK Spark Plug Wire Set
🚗Fitment: Hyundai and Kia, Tiburon, Santa Fe, Magentis, Optima, and Sonata
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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.

BrandNGK
Part Number3878
PositionNGK Spark Plug Wire Set
Core MaterialMag (Var. Pitch)
Insulation ColorBlue
Insulation MaterialSilicone
Insulation Outside Diameter7.00
Noise Suppression TypeYes
Part NumberRC-XX91
Stock Number3878
Universal Or Specific FitSpecific

This part fits 31 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2008HyundaiTiburon2.7LV6N/ANGK Spark Plug Wire Set
2007HyundaiTiburon2.7LV6N/ANGK Spark Plug Wire Set
2006HyundaiSanta Fe2.7LV6N/ANGK Spark Plug Wire Set
2006HyundaiTiburon2.7LV6N/ANGK Spark Plug Wire Set
2006KiaMagentis2.7LV6N/ANGK Spark Plug Wire Set
2006KiaOptima2.7LV6N/AExcept Mid Model Year; NGK Spark Plug Wire Set
2005HyundaiSanta Fe2.7LV6N/ANGK Spark Plug Wire Set
2005HyundaiSonata2.7LV6N/ANGK Spark Plug Wire Set
2005HyundaiTiburon2.7LV6N/ANGK Spark Plug Wire Set
2005KiaMagentis2.7LV6N/ANGK Spark Plug Wire Set
2005KiaOptima2.7LV6N/ANGK Spark Plug Wire Set
2004HyundaiSanta Fe2.7LV6N/ANGK Spark Plug Wire Set
2004HyundaiSonata2.7LV6N/ANGK Spark Plug Wire Set
2004HyundaiTiburon2.7LV6N/ANGK Spark Plug Wire Set
2004KiaMagentis2.7LV6N/ANGK Spark Plug Wire Set
2004KiaOptima2.7LV6N/ANGK Spark Plug Wire Set
2003HyundaiSanta Fe2.7LV6N/ANGK Spark Plug Wire Set
2003HyundaiSonata2.7LV6N/ANGK Spark Plug Wire Set
2003HyundaiTiburon2.7LV6N/ANGK Spark Plug Wire Set
2003KiaMagentis2.7LV6N/ANGK Spark Plug Wire Set
2003KiaOptima2.7LV6N/ANGK Spark Plug Wire Set
2002HyundaiSanta Fe2.7LV6N/ANGK Spark Plug Wire Set
2002HyundaiSonata2.7LV6N/ANGK Spark Plug Wire Set
2002KiaMagentis2.7LV6N/ANGK Spark Plug Wire Set
2002KiaOptima2.7LV6N/ANGK Spark Plug Wire Set
2001HyundaiSanta Fe2.7LV6N/ANGK Spark Plug Wire Set
2001HyundaiSonata2.5LV6N/ANGK Spark Plug Wire Set
2001KiaMagentis2.5LV6N/ANGK Spark Plug Wire Set
2001KiaOptima2.5LV6N/ANGK Spark Plug Wire Set
2000HyundaiSonata2.5LV6N/ANGK Spark Plug Wire Set
1999HyundaiSonata2.5LV6N/ANGK 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:

025-0021025-00310901409015175-620518601835-608635-PF776943878558036086671-62207001957002117707901490159642966197078CH76173

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.