HomeIgnition > Ignition Wire and Related ComponentsDenso 671-4234 Spark Plug Wire Set
Part #: 671-4234

Denso 671-4234 Spark Plug Wire Set

7mm
⚙️ 11 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: Subaru, Impreza and Legacy
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Overview of Denso 7mm Spark Plug Wire Set 671-4234

The Denso 7mm Spark Plug Wire Set 671-4234 is designed specifically for Subaru Impreza and Legacy models. This ignition wire set ensures reliable electrical conductivity and durability with its silicone spark plug boot material and precise terminal configurations.

  • Silicone spark plug boot material for heat resistance and flexibility
  • 7.00 mm insulation outside diameter for optimal electrical insulation
  • 180-degree spark plug end boot angle for proper fitment
  • Female spark plug end terminal and male distributor coil end terminal
  • Includes four straight spark plug end boots

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 silicone spark plug boot material offers enhanced durability and flexibility, which is essential for maintaining a secure connection under engine heat and vibration. The spark plug end boots are angled at 180 degrees, allowing for a straight fit that matches the original equipment specifications on Subaru Impreza and Legacy vehicles. The set includes four female spark plug end terminals paired with male distributor coil end terminals, ensuring compatibility with the ignition system components of these Subaru models.

About the Denso 7mm Brand Line

The 7mm brand line from Denso focuses on ignition wire sets with a 7.00 mm insulation diameter, balancing durability and electrical performance. This line is engineered to meet the specific requirements of various vehicle makes and models, including Subaru. The 7mm insulation thickness provides reliable resistance to heat and electrical interference, making it suitable for demanding ignition system environments.

Applications and Common Issues Addressed

  • Replacement of worn or damaged spark plug wires on Subaru Impreza and Legacy
  • Resolving misfires caused by poor electrical conductivity
  • Eliminating ignition noise and radio interference
  • Improving engine starting and performance consistency
  • Preventing spark plug boot cracking and corrosion

Installation Notes and Tips

When installing the Denso 7mm Spark Plug Wire Set 671-4234, ensure that the spark plug end boots are properly seated at a 180-degree angle for a secure fit. Verify that the male distributor coil end terminals connect firmly to the coil to maintain optimal electrical flow. It is recommended to replace all wires simultaneously to maintain balanced ignition performance. Handle the silicone boots carefully to avoid damage during installation.

Quality Assurance and Warranty

Denso manufactures this spark plug wire set to meet OEM standards for fit, form, and function. The use of high-quality silicone and precise terminal design supports long-term reliability. While specific warranty details are not provided here, Denso products typically come with manufacturer-backed warranties covering defects in materials and workmanship.

BrandDenso
Part Number671-4234
Position7mm
Distributor Coil End Terminal TypeMale
Insulation Outside Diameter7.00
Spark Plug Boot MaterialSilicone
Spark Plug End Boot Degree180
Spark Plug End Boot Quantity Straight4
Spark Plug End Terminal TypeFEMALE

This part fits 11 vehicles. Search below:

YearMakeModelPositionNotes
1996SubaruImprezaN/A7mm
1996SubaruLegacyN/A7mm
1995SubaruImprezaN/A7mm
1995SubaruLegacyN/A7mm
1994SubaruImprezaN/A7mm
1994SubaruLegacyN/A7mm
1993SubaruImprezaN/A7mm
1993SubaruLegacyN/A7mm
1992SubaruLegacyN/A7mm
1991SubaruLegacyN/A7mm
1990SubaruLegacyN/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:

904S954B

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