HomeIgnition > Ignition Wire and Related ComponentsDenso 671-4146 Spark Plug Wire Set
Part #: 671-4146

Denso 671-4146 Spark Plug Wire Set

5mm
⚙️ 8 vehicles fit this part
🔍
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
$46.49Free 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
📦5mm
🚗Fitment: Toyota, T100, Tacoma, and 4Runner
🔄Easy Returns — Return within 60 days for a full refund
🚚Fast Shipping — Most orders ship same business day before 1pm CST

Overview of Denso 5mm Spark Plug Wire Set 671-4146

The Denso 5mm Spark Plug Wire Set 671-4146 is designed for reliable ignition performance in select Toyota vehicles. This set is engineered to meet the specific requirements of Toyota 4Runner, T100, and Tacoma models, ensuring proper fit and function.

  • Silicone PBT silicone spark plug boot material for durability and heat resistance
  • 5.00 mm insulation outside diameter for optimal electrical insulation
  • 90-degree angled female spark plug end boots (quantity: 4) for precise installation
  • Male distributor coil end terminals for secure connection

Detailed Product Features and Specifications

This spark plug wire set features a 5.00 mm insulation outside diameter, providing effective protection against electrical interference and heat. The spark plug boots are made from a silicone PBT silicone compound, which offers enhanced durability and resistance to high temperatures commonly found in engine compartments. The spark plug end boots are angled at 90 degrees and come in a quantity of four, facilitating easier routing and installation in tight engine spaces. The distributor coil end terminals are male type, designed to fit securely with compatible ignition coils.

About the Denso 5mm Brand Line

The Denso 5mm brand line focuses on ignition wire sets with a 5.00 mm insulation diameter, balancing flexibility and durability. This line is tailored to provide consistent electrical performance and resistance to environmental factors such as heat and vibration. The 671-4146 part number within this line is specifically engineered for Toyota trucks and SUVs, ensuring compatibility and reliable ignition system operation.

Compatible Vehicles and Common Applications

  • Compatible with Toyota 4Runner models requiring spark plug wire replacement
  • Suitable for Toyota T100 trucks needing ignition wire maintenance
  • Designed for Toyota Tacoma vehicles to restore ignition system integrity
  • Addresses issues such as misfires, rough idling, and poor engine performance related to ignition wire wear
  • Helps resolve electrical shorts and spark plug boot damage

Installation Notes and Tips

When installing the Denso 671-4146 spark plug wire set, ensure the 90-degree angled boots are properly seated on the spark plugs to avoid strain on the wires. Verify that the male distributor coil end terminals are firmly connected to the ignition coil. It is recommended to replace all wires in the set simultaneously to maintain balanced ignition performance. Handle the wires carefully to prevent damage to the silicone boots and insulation.

Quality Assurance and Warranty

Denso manufactures this spark plug wire set to meet OEM specifications for Toyota vehicles, ensuring consistent quality and fitment. The materials used provide resistance to heat, abrasion, and electrical interference. While specific warranty details are not provided here, Denso products typically come with manufacturer-backed quality assurance to support reliable operation.

BrandDenso
Part Number671-4146
Position5mm
Bushing Material4
Distributor Coil End Terminal TypeMale
Insulation Outside Diameter5.00
Spark Plug Boot MaterialSil PBT Sil
Spark Plug End Boot Degree90
Spark Plug End Terminal TypeFEMALE

This part fits 8 vehicles. Search below:

YearMakeModelPositionNotes
1997ToyotaT100N/A5mm
1997ToyotaTacomaN/A5mm
1996Toyota4RunnerN/A5mm
1996ToyotaT100N/A5mm
1996ToyotaTacomaN/A5mm
1995ToyotaT100N/A5mm
1995ToyotaTacomaN/A5mm
1994ToyotaT100N/A5mm

* 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:

964B

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