HomeIgnition > Ignition Wire and Related ComponentsDenso 671-4155 Spark Plug Wire Set
Part #: 671-4155

Denso 671-4155 Spark Plug Wire Set

7mm
⚙️ 4 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
📦7mm
🚗Fitment: Toyota, MR2 and Celica
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Overview of Denso 7mm Spark Plug Wire Set 671-4155

The Denso 7mm Spark Plug Wire Set 671-4155 is engineered for reliable ignition performance in Toyota Celica and MR2 models. Designed with precision, this spark plug wire set ensures consistent electrical conductivity and durability under demanding engine conditions.

  • 7.00 mm insulation outside diameter for optimal electrical insulation
  • Silicone PBT silicone spark plug boot material for heat resistance and flexibility
  • Distributor coil end terminal type: Male for secure connection
  • Spark plug end terminal type: Female with a 105-degree boot angle for precise fitment
  • Includes four angled spark plug end boots for proper alignment and installation

Detailed Product Features and Specifications

This Denso spark plug wire set features a 7.00 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 distributor coil end terminal is male, ensuring a firm and reliable connection to the ignition coil. On the spark plug side, the female terminal with a 105-degree boot angle facilitates easy installation and proper seating on the spark plugs. The set includes four angled spark plug end boots, matching the specific routing and fitment requirements of Toyota Celica and MR2 vehicles.

About the Denso 7mm Brand Line

The Denso 7mm brand line focuses on ignition wire sets with a 7.00 mm insulation diameter, balancing flexibility and durability for consistent ignition performance. This line is designed to meet the specific electrical and mechanical demands of various vehicle models, including Toyota Celica and MR2, providing a tailored fit and reliable operation.

Applications and Common Issues Addressed

  • Replacement for worn or damaged spark plug wires in Toyota Celica and MR2
  • Resolves misfires caused by poor electrical conductivity or insulation failure
  • Eliminates ignition noise and interference affecting engine performance
  • Prevents voltage leaks that can reduce spark efficiency
  • Improves engine starting reliability and smoothness

Installation Notes and Tips

When installing the Denso 671-4155 spark plug wire set, ensure the correct orientation of the 105-degree angled spark plug boots for proper fitment. Verify that the male distributor coil end terminals are securely connected to the ignition coil. Avoid excessive bending or stretching of the wires to maintain insulation integrity. It is recommended to replace all wires in the set simultaneously to maintain balanced ignition performance.

Quality Assurance and Warranty

Denso manufactures this spark plug wire set to meet OEM specifications for Toyota Celica and MR2 models. The use of high-quality silicone PBT silicone materials and precise terminal design supports long-term durability and consistent ignition performance. Warranty information is provided by Denso and may vary by region; consult the product documentation or authorized distributor for specific warranty details.

BrandDenso
Part Number671-4155
Position7mm
Bushing Material4
Distributor Coil End Terminal TypeMale
Insulation Outside Diameter7.00
Spark Plug Boot MaterialSil PBT Sil
Spark Plug End Boot Degree105
Spark Plug End Terminal TypeFEMALE

This part fits 4 vehicles. Search below:

YearMakeModelPositionNotes
1992ToyotaMR2N/ATo 1/92; 7mm
1991ToyotaCelicaN/A7mm
1991ToyotaMR2N/A7mm
1990ToyotaCelicaN/A7mm

* 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:

944N

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