HomeIgnition > Ignition Wire and Related ComponentsDenso 671-4088 Spark Plug Wire Set
Part #: 671-4088

Denso 671-4088 Spark Plug Wire Set

7mm
⚙️ 23 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
📦7mm
🚗Fitment: Volvo, 940, 740, 780, 760, and 745
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Overview of Denso 7mm Spark Plug Wire Set 671-4088

The Denso 7mm Spark Plug Wire Set 671-4088 is designed specifically for select Volvo models, including the 740, 745, 760, 780, and 940. This ignition wire set ensures reliable electrical conductivity and durability for your vehicle's ignition system.

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

Detailed Product Features and Specifications

The Denso 7mm spark plug wire set features silicone boots that provide excellent resistance to heat and environmental factors, helping maintain performance under demanding conditions. The 7.00 mm insulation diameter offers effective protection against electrical interference and arcing. Both the distributor coil end and spark plug end terminals are female, ensuring compatibility with the ignition components of Volvo 740, 745, 760, 780, and 940 models. The spark plug end boots are angled at 180 degrees, which facilitates installation in tight engine compartments and helps maintain a secure connection. This set includes four straight spark plug end boots, matching the typical four-cylinder ignition setup in these Volvo 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 durability and electrical performance. This line is engineered to meet the specific requirements of various vehicle makes and models, including Volvo, providing consistent ignition performance and reliable fitment. The 7mm wires are designed to withstand high temperatures and resist wear, making them suitable for long-term use in demanding automotive environments.

Applications and Common Issues Addressed

  • Replacement for worn or damaged spark plug wires in Volvo 740, 745, 760, 780, and 940
  • Eliminates misfires caused by poor electrical conductivity or insulation breakdown
  • Prevents ignition system interference and electrical noise
  • Resolves issues related to cracked or brittle spark plug boots
  • Improves engine starting and overall ignition reliability

Installation Notes and Tips

When installing the Denso 671-4088 spark plug wire set, ensure that the female terminals are properly seated on both the distributor coil and spark plugs. The 180-degree spark plug end boots should be aligned to avoid stress on the wires. 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 specifications for Volvo vehicles, ensuring reliable fit and function. The use of high-quality silicone and precise terminal construction supports long-term durability. While specific warranty details are not provided here, Denso products typically come with manufacturer-backed quality assurance to support customer confidence.

BrandDenso
Part Number671-4088
Position7mm
Distributor Coil End Terminal TypeFemale
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 23 vehicles. Search below:

YearMakeModelPositionNotes
1995Volvo940N/AExc. Regina Ignition; 7mm
1994Volvo940N/AExc. Regina Ignition; 7mm
1993Volvo940N/A7mm
1992Volvo740N/A7mm
1992Volvo940N/A7mm
1991Volvo740N/A7mm
1991Volvo780N/A7mm
1991Volvo940N/A7mm
1990Volvo740N/A7mm
1990Volvo760N/A7mm
1990Volvo780N/A7mm
1989Volvo740N/A7mm
1989Volvo760N/A7mm
1989Volvo780N/A7mm
1988Volvo740N/A7mm
1988Volvo760N/A7mm
1987Volvo740N/A7mm
1987Volvo760N/A7mm
1986Volvo740N/A7mm
1986Volvo760N/A7mm
1985Volvo740N/A7mm
1985Volvo745N/A7mm
1985Volvo760N/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:

934B934C934E

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