Delphi XS10390 Spark Plug Wire Set

Delphi XS10390 Spark Plug Wire Set

Delphi XS10390 is a spark plug wire set built with wire-wound, composite high-temperature construction for dependable ignition performance. It draws on Delphi’s OE heritage and decades of supplier experience to deliver the fit and function expected in everyday service work.

• Wire-wound, composite high-temp construction
• OE-informed design from Delphi ignition expertise
• Includes spark plug wire set and instruction sheet
• Direct replacement for select GM applications
• Cross-references Champion Spark Plug 7695 and NGK 51021

OE Heritage and Application Coverage

This Delphi XS10390 spark plug wire set is built for drivers and technicians servicing ignition systems on select Buick, Chevrolet, Oldsmobile, and Pontiac vehicles. It is a fit for 2001-2005 Buick Century, 2002-2005 Buick Rendezvous, 2001-2005 Chevrolet Impala, 2001-2005 Chevrolet Monte Carlo, 2001-2005 Pontiac Aztek, 2001-2005 Pontiac Grand Am, 2001-2005 Pontiac Montana, 2001-2004 Oldsmobile Alero, 2001-2004 Oldsmobile Silhouette, 2001-2003 Chevrolet Malibu, 2001-2003 Pontiac Grand Prix, 2001 Chevrolet Lumina, and 1999 Oldsmobile Cutlass. For shoppers searching for a spark plug wire set for a 2001-2005 Chevrolet Impala or a Delphi XS10390 replacement for a Pontiac Grand Prix, this part matches the listed applications.

Common Issues This Part Can Address

• Misfires caused by worn or heat-damaged plug wires
• Hard starting related to weak ignition transfer
• Rough idle from deteriorated wire insulation
• Voltage leakage in aging ignition wire routing
• Loss of spark delivery on listed Buick, Chevrolet, Oldsmobile, and Pontiac models

Installation Notes and Tips

Match each wire to the original routing before removal, then transfer one lead at a time to reduce the chance of cross-connection. Inspect boots, coil terminals, and spark plugs during service, and confirm the wire set is seated fully at both ends. Use the included instruction sheet for routing guidance on the vehicle-specific layout.

Quality Assurance

Delphi builds this ignition part with OE experience and supplier knowledge developed over a century of automotive production and service. That background is reflected in the materials and construction used in XS10390.