HomeIgnition > Ignition Wire and Related ComponentsNGK 8140 Spark Plug Wire Set
Part #: 8140

NGK 8140 Spark Plug Wire Set

NGK Spark Plug Wire Set
⚙️ 6 vehicles fit this part
🔍
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
$72.37Free Shipping
🚚Free ShippingNo Cost to Continental U.S.
🔄Free Returns*Wrong fit? No cost
🛡️60-Day ReturnsMoney back guarantee
*Free return shipping only qualifies if our fitment verification tool is used.
🔥
✅ In Stock · Ready To Ship Most orders ship same-day if ordered before 1pm CST.
OE Direct Replacement — Bolt-on fit, no modifications needed
📦NGK Spark Plug Wire Set
🚗Fitment: Toyota, 4Runner and Pickup
🔄Easy Returns — Return within 60 days for a full refund
🚚Fast Shipping — Most orders ship same business day before 1pm CST

Reliable Ignition Performance for Toyota 4Runner and Pickup

The NGK Spark Plug Wire Set 8140 is designed specifically for Toyota 4Runner and Pickup models, ensuring precise fitment and optimal ignition performance. Featuring durable silicone insulation and advanced noise suppression, this spark plug wire set supports consistent engine operation under various driving conditions.

Key Features of NGK Spark Plug Wire Set 8140

  • Insulation Color: Blue for easy identification
  • High-quality silicone insulation material for heat resistance and durability
  • Noise suppression technology to reduce electromagnetic interference
  • Magnesium core with variable pitch for efficient spark delivery
  • Specific fitment for Toyota 4Runner and Pickup models
  • Insulation outside diameter of 7.00 mm for reliable protection
  • Part Number Rc-tx12, Stock Number 8140 for accurate replacement

About the NGK Spark Plug Wire Set Product Line

The NGK Spark Plug Wire Set line focuses on delivering ignition wire solutions tailored to specific vehicle applications. This product line emphasizes quality materials such as silicone insulation and advanced core designs like the magnesium variable pitch core found in part number 8140. These features contribute to improved ignition efficiency and reduced electrical noise, supporting engine performance and reliability for compatible Toyota models.

Detailed Product Description

This NGK Spark Plug Wire Set 8140 is engineered with a silicone insulation that withstands high temperatures and resists cracking or deterioration over time. The blue insulation color aids in quick identification during maintenance. The magnesium core with variable pitch enhances spark energy transfer, promoting efficient combustion. Noise suppression technology minimizes radio frequency interference, which can affect vehicle electronics. Designed specifically for Toyota 4Runner and Pickup vehicles, this wire set ensures a precise fit and reliable connection to the ignition system.

Common Issues Addressed by This Spark Plug Wire Set

  • Misfiring or rough engine idle due to worn or damaged ignition wires
  • Interference with vehicle electronics caused by inadequate noise suppression
  • Reduced engine performance from poor spark delivery
  • Cracking or insulation failure from heat exposure
  • Difficulty in maintenance due to non-specific or generic wire sets

Installation Notes and Tips

  • Verify compatibility with Toyota 4Runner and Pickup models before installation
  • Handle wires carefully to avoid damaging the silicone insulation
  • Ensure secure connections at both spark plug and ignition coil ends
  • Replace wires in sets to maintain balanced ignition performance
  • Consult vehicle service manual for torque specifications and routing

Quality Assurance and Warranty

NGK maintains strict quality control standards for the Spark Plug Wire Set 8140, ensuring consistent performance and durability. While specific warranty details are not provided, NGK products typically meet or exceed OEM specifications, offering reliable ignition wire solutions for Toyota 4Runner and Pickup vehicles.

BrandNGK
Part Number8140
PositionNGK Spark Plug Wire Set
Core MaterialMag (Var. Pitch)
Insulation ColorBlue
Insulation MaterialSilicone
Insulation Outside Diameter7.00
Noise Suppression TypeYes
Part NumberRC-TX12
Stock Number8140
Universal Or Specific FitSpecific

This part fits 6 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
1991Toyota4Runner3.0LV6N/ANGK Spark Plug Wire Set
1991ToyotaPickup3.0LV6N/ANGK Spark Plug Wire Set
1990Toyota4Runner3.0LV6N/ANGK Spark Plug Wire Set
1990ToyotaPickup3.0LV6N/ANGK Spark Plug Wire Set
1989Toyota4Runner3.0LV6N/ANGK Spark Plug Wire Set
1989ToyotaPickup3.0LV6N/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:

09199127637156006175-603235-604135-PF7741155908671-61737004697631814086471919996471CH7637

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