Denso 671-6043 Spark Plug Wire Set

Denso 7mm Spark Plug Wire Set for OE-Style Ignition Service

Denso 671-6043 is a 7mm spark plug wire set built to match factory-installed wire sets in form, fit, color, and performance. It is a direct replacement choice for select Buick, Oldsmobile, and Pontiac applications, including LeSabre, Bonneville, Park Avenue, and Riviera models.

Key Features

• 7mm insulation outside diameter for OE-style ignition wire routing and fit
• Silicone spark plug boot material for heat resistance and flexibility
• Female spark plug end terminal type
• 180-degree spark plug end boot design for specific plug access and routing
• Female distributor/coil end terminal type
• Built to meet or exceed OE/OES standards
• Denso First Time Fit product line for factory-style replacement

Product Details

The Denso First Time Fit line focuses on replacement parts that mirror original equipment specifications, and this ignition wire set follows that approach with OE-style construction and terminal design. The 7mm profile, silicone boots, and female terminals support a factory-like connection at the spark plug and distributor or coil end. This makes Denso 671-6043 a practical choice for drivers servicing ignition systems on 1995-1998 Buick LeSabre, 1995-1997 Buick Park Avenue, and 1995-1997 Buick Riviera, as well as select Oldsmobile and Pontiac models.

This part cross-references ACDelco 726H and Bosch 09733 for the same application.

Vehicle Fitment

• Fits 1996-1998 Buick LeSabre, N/A
• Fits 1995-1997 Buick Park Avenue, N/A
• Fits 1995-1997 Buick Riviera, N/A
• Fits 1995-1998 Oldsmobile 88, N/A
• Fits 1996-1998 Oldsmobile LSS, N/A
• Fits 1997-1998 Oldsmobile Regency, N/A
• Fits 1995-1996 Oldsmobile 98, N/A
• Fits 1995-1998 Pontiac Bonneville, N/A

What It Helps Address

• Misfires caused by worn or heat-damaged ignition wires
• Hard starting related to weak spark delivery
• Rough idle from deteriorated wire insulation or boot connections
• Intermittent ignition performance from poor terminal contact
• Voltage leakage across aging spark plug wire insulation

Installation Notes and Tips

Match each wire to the correct cylinder and route it away from hot or moving engine components. Confirm the female terminals and 180-degree spark plug boot orientation before installation, and inspect the coil or distributor ends for corrosion or wear while servicing the ignition system. For best results, replace wires as a complete set when the existing set shows age-related cracking, arcing, or resistance issues.

Quality Assurance

Denso First Time Fit ignition wire sets are engineered to align with OE/OES standards for construction and performance. The 671-6043 is built as an OE-style replacement for the listed Buick, Oldsmobile, and Pontiac applications.