HomeIgnition > Ignition Wire and Related ComponentsDenso 671-8071 Spark Plug Wire Set
Part #: 671-8071

Denso 671-8071 Spark Plug Wire Set

7mm
⚙️ 21 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
📦7mm
🚗Fitment: Buick and Cadillac, Centurion, Calais, DeVille, Fleetwood, Eldorado, Series 60 Fleetwood, Series 62, and Series 75 Fleetwood
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Reliable Spark Plug Wire Set for Cadillac Vehicles

The Denso 7mm Spark Plug Wire Set (Part Number 671-8071) is designed specifically for Cadillac DeVille, Eldorado, and Fleetwood models. Engineered to deliver consistent ignition performance, this set ensures optimal spark delivery and engine efficiency.

Key Features of the Denso 671-8071 Spark Plug Wire Set

  • Silicone spark plug boot material for enhanced heat resistance and durability
  • 7.00 mm insulation outside diameter for effective electrical insulation
  • 135-degree angled spark plug end boots, with a quantity of 8 angled boots included
  • Female spark plug end terminal type and male distributor coil end terminal type for secure connections
  • Compatible with Cadillac DeVille, Eldorado, and Fleetwood models

Detailed Description of the 7mm Spark Plug Wire Set

The Denso 7mm spark plug wire set features silicone boots that provide superior resistance to heat and environmental factors, helping to maintain reliable ignition under demanding conditions. The 7.00 mm insulation diameter offers robust protection against electrical interference and arcing. The 135-degree angled spark plug end boots facilitate easier installation in tight engine compartments, while the combination of female spark plug end terminals and male distributor coil end terminals ensures a secure and precise fit. This set includes eight angled boots, matching the ignition requirements of the specified Cadillac models. The 7mm product line from Denso focuses on delivering consistent electrical performance with durable materials suitable for ignition wire applications.

Applications and Common Issues Addressed

  • Replacement for worn or damaged spark plug wires in Cadillac DeVille, Eldorado, and Fleetwood
  • Resolves misfires caused by faulty or degraded ignition wires
  • Improves engine starting and smoothness by ensuring proper spark delivery
  • Prevents electrical interference and crossfire in ignition systems
  • Addresses heat-related wire degradation in older ignition components

Installation Notes and Tips

  • Ensure the engine is cool before beginning installation to avoid burns
  • Match each wire to its corresponding spark plug and distributor coil terminal for correct firing order
  • Use dielectric grease on boots to improve connection and ease future removal
  • Inspect distributor cap and spark plugs during installation for additional maintenance
  • Handle wires carefully to avoid damaging the silicone boots or terminals

Quality Assurance and Warranty Information

Denso manufactures the 671-8071 spark plug wire set to meet strict quality standards, ensuring reliable performance and durability. The silicone boot material and precise terminal design contribute to long service life. Warranty coverage details should be confirmed with the point of purchase or manufacturer documentation.

BrandDenso
Part Number671-8071
Position7mm
Bushing Material8
Distributor Coil End Terminal TypeMale
Insulation Outside Diameter7.00
Spark Plug Boot MaterialSilicone
Spark Plug End Boot Degree135
Spark Plug End Terminal TypeFEMALE

This part fits 21 vehicles. Search below:

YearMakeModelPositionNotes
1970CadillacDeVilleN/A7mm
1970CadillacFleetwoodN/A7mm
1969CadillacDeVilleN/A7mm
1969CadillacEldoradoN/A7mm
1969CadillacFleetwoodN/A7mm
1968CadillacDeVilleN/A7mm
1968CadillacEldoradoN/A7mm
1968CadillacFleetwoodN/A7mm
1967CadillacDeVilleN/A7mm
1967CadillacEldoradoN/A7mm
1967CadillacFleetwoodN/A7mm
1966CadillacDeVilleN/A7mm
1966CadillacEldoradoN/A7mm
1966CadillacFleetwoodN/A7mm
1965CadillacDeVilleN/A7mm
1965CadillacEldoradoN/A7mm
1965CadillacFleetwoodN/A7mm
1964CadillacDeVilleN/A7mm
1964CadillacEldoradoN/A7mm
1963CadillacDeVilleN/A7mm
1963CadillacEldoradoN/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:

508D

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