HomeIgnition > Ignition Wire and Related ComponentsDenso 671-8029 Spark Plug Wire Set
Part #: 671-8029

Denso 671-8029 Spark Plug Wire Set

8mm
⚙️ 75 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
📦8mm
🚗Fitment: Buick, Pontiac, Oldsmobile, and Chevrolet, Century, Regal, Bonneville, Catalina, Firebird, Grand LeMans, Grand Prix, LeMans, Electra, Estate Wagon, LeSabre, Grand Am, Delta 88, Grand Safari, Skylark, Laurentian, Parisienne, Ventura, Laguna, Malibu, Monte Carlo, Grandville, and GTO
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Reliable Ignition Wire Set for Buick, Chevrolet, Oldsmobile, and Pontiac

The Denso 8mm Spark Plug Wire Set (Part Number 671-8029) is designed to deliver consistent ignition performance for a range of classic and modern vehicles. Engineered with durable silicone boots and precise terminal configurations, this set ensures reliable spark delivery for optimal engine operation.

  • Silicone spark plug boot material for heat resistance and durability
  • 8.00 mm insulation outside diameter for effective electrical insulation
  • Female distributor coil end terminals for secure connections
  • 180-degree spark plug end boot angle to fit tight engine compartments
  • Includes 8 straight spark plug end boots for complete wire set replacement

Detailed Features of the Denso 8mm Spark Plug Wire Set

This spark plug wire set features silicone boots that provide excellent resistance to heat, oil, and chemicals, extending the life of the ignition wires. The 8.00 mm insulation diameter balances flexibility with protection against electrical interference. Both the distributor coil end and spark plug end terminals use female connectors, ensuring a snug and reliable fit. The 180-degree angle of the spark plug end boots allows for easier routing in engines with limited space. This set includes eight straight spark plug end boots, making it suitable for vehicles requiring a full ignition wire replacement.

About the Denso 8mm Brand Line

The Denso 8mm brand line focuses on ignition wire sets with an 8.00 mm insulation diameter, providing a balance of durability and performance. This line is engineered to meet the specific electrical and mechanical demands of various GM vehicles, including Buick, Chevrolet, Oldsmobile, and Pontiac models. The 8mm insulation helps reduce radio frequency interference while maintaining flexibility for installation in tight engine bays.

Compatible Vehicles and Common Applications

  • Buick models such as LeSabre, Century, and Skylark
  • Chevrolet models including Malibu, Monte Carlo, and GTO
  • Oldsmobile models like Delta 88, Cutlass, and 88
  • Pontiac models including Firebird, Grand Am, and Grand Prix
  • Addresses ignition issues such as misfires, rough idling, and poor acceleration

Installation Notes and Tips

  • Ensure engine is cool before installation to avoid damage to boots and terminals
  • Match wire lengths carefully to original set for proper routing
  • Check for secure connections at both spark plug and distributor coil ends
  • Inspect boots for any signs of wear or damage before installation
  • Use dielectric grease on boots to improve seal and ease future removal

Quality Assurance and Warranty

Denso ignition wire sets are manufactured to meet OEM specifications for fit and function. The use of high-quality silicone and precise terminal design supports long-term reliability. While specific warranty details may vary, Denso products typically come with a limited warranty covering defects in materials and workmanship to ensure customer confidence in performance.

BrandDenso
Part Number671-8029
Position8mm
Distributor Coil End Terminal TypeFemale
Insulation Outside Diameter8.00
Spark Plug Boot MaterialSilicone
Spark Plug End Boot Degree180
Spark Plug End Boot Quantity Straight8
Spark Plug End Terminal TypeFEMALE

This part fits 75 vehicles. Search below:

YearMakeModelPositionNotes
1981BuickCenturyN/A8mm
1981BuickRegalN/A8mm
1981PontiacBonnevilleN/A8mm
1981PontiacCatalinaN/A8mm
1981PontiacFirebirdN/A8mm
1981PontiacGrand LeMansN/A8mm
1981PontiacGrand PrixN/A8mm
1981PontiacLeMansN/A8mm
1980BuickCenturyN/A8mm
1980BuickLeSabreN/A8mm
1980BuickRegalN/A8mm
1980PontiacBonnevilleN/A8mm
1980PontiacCatalinaN/A8mm
1980PontiacFirebirdN/A8mm
1980PontiacGrand AmN/A8mm
1980PontiacGrand LeMansN/A8mm
1980PontiacGrand PrixN/A8mm
1980PontiacLeMansN/A8mm
1979BuickCenturyN/A8mm
1979BuickLeSabreN/A8mm
1979BuickRegalN/A8mm
1979OldsmobileDelta 88N/A8mm
1979PontiacBonnevilleN/A8mm
1979PontiacCatalinaN/A8mm
1979PontiacFirebirdN/A8mm
1979PontiacGrand AmN/A8mm
1979PontiacGrand LeMansN/A8mm
1979PontiacGrand PrixN/A8mm
1979PontiacLeMansN/A8mm
1978BuickLeSabreN/A8mm
1978PontiacBonnevilleN/A8mm
1978PontiacCatalinaN/A8mm
1978PontiacFirebirdN/A8mm
1978PontiacGrand AmN/A8mm
1978PontiacGrand PrixN/A8mm
1977BuickLeSabreN/A8mm
1977BuickSkylarkN/A8mm
1977PontiacBonnevilleN/A8mm
1977PontiacCatalinaN/A8mm
1977PontiacFirebirdN/A8mm
1977PontiacGrand LeMansN/A8mm
1977PontiacGrand PrixN/A8mm
1977PontiacLaurentianN/A8mm
1977PontiacLeMansN/A8mm
1977PontiacParisienneN/A8mm
1976ChevroletMalibuN/A8mm
1976ChevroletMonte CarloN/A8mm
1976PontiacBonnevilleN/A8mm
1976PontiacCatalinaN/A8mm
1976PontiacFirebirdN/A8mm
1976PontiacGrand LeMansN/A8mm
1976PontiacGrand PrixN/A8mm
1976PontiacLaurentianN/A8mm
1976PontiacLeMansN/A8mm
1976PontiacParisienneN/A8mm
1975PontiacBonnevilleN/A8mm
1975PontiacCatalinaN/A8mm
1975PontiacFirebirdN/A8mm
1975PontiacGrand AmN/A8mm
1975PontiacGrand LeMansN/A8mm
1975PontiacGrand PrixN/A8mm
1975PontiacLeMansN/A8mm
1974PontiacBonnevilleN/Aw/ HEI; 8mm
1974PontiacCatalinaN/Aw/ HEI; 8mm
1974PontiacFirebirdN/Aw/ HEI; 8mm
1974PontiacGrand AmN/Aw/ HEI; 8mm
1974PontiacGrand PrixN/Aw/ HEI; 8mm
1974PontiacLeMansN/Aw/ HEI; 8mm
1973PontiacBonnevilleN/Aw/ HEI; 8mm
1973PontiacCatalinaN/Aw/ HEI; 8mm
1973PontiacFirebirdN/Aw/ HEI; 8mm
1973PontiacGrand AmN/Aw/ HEI; 8mm
1973PontiacGrand PrixN/Aw/ HEI; 8mm
1973PontiacGTON/A8mm
1973PontiacLeMansN/Aw/ HEI; 8mm

* 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:

608V

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