Karlyn 604 Spark Plug Wire Set

Karlyn-STI 604 Spark Plug Wire Set

The Karlyn-STI 604 spark plug wire set is an OE-style ignition wire replacement with OEM boot type and OEM engine fitment details. Finished in blue, it is built for drivers servicing Chrysler, Dodge, and Plymouth vehicles that need a direct-fit spark plug wire set for the listed applications.

Key Features

• Part number 604 spark plug wire set from Karlyn
• Karlyn-STI product line for ignition wire and related components
• OEM boot type for factory-style connection points
• Blue wire set for easy visual identification
• OEM engine specification noted in the product attributes

Fitment and Application Details

Compatible With Chrysler Voyager, Dodge Caravan, Dodge Grand Caravan, Plymouth Grand Voyager, Plymouth Voyager, Chrysler LeBaron, Dodge Spirit, Plymouth Acclaim, Dodge Shadow, Plymouth Sundance, and Dodge Daytona applications listed below. This Karlyn 604 spark plug wire set is cataloged for 1989-2000 model-year coverage across the vehicles shown.

• Fits 2000 Chrysler Voyager, N/A
• Fits 1990-2000 Dodge Caravan, N/A
• Fits 1994-2000 Dodge Grand Caravan, N/A
• Fits 1992 Dodge Grand Caravan, N/A
• Fits 1992-2000 Plymouth Grand Voyager, N/A
• Fits 1990-2000 Plymouth Voyager, N/A
• Fits 1990-1995 Chrysler LeBaron, N/A
• Fits 1989-1995 Dodge Spirit, N/A
• Fits 1989-1995 Plymouth Acclaim, N/A
• Fits 1992-1994 Dodge Shadow, N/A
• Fits 1992-1994 Plymouth Sundance, N/A
• Fits 1990-1993 Dodge Daytona, N/A

What This Part Helps Address

• Misfires caused by worn or damaged ignition wires
• Hard starting related to weak spark delivery
• Rough idle from inconsistent ignition transfer
• Voltage leakage from aging wire insulation
• Service replacement needs on OE-style ignition systems

Installation Notes

Match each wire to the correct cylinder before removal, then transfer one lead at a time to preserve firing order. Verify routing, boot seating, and clearance from hot or moving components during installation. Confirm the vehicle application against the listed fitment before purchase, especially on Chrysler Voyager, Dodge Caravan, and Plymouth Voyager models.

Quality Assurance

Karlyn-STI identifies this as an OE-style ignition wire set with OEM boot type and OEM engine specification details. Part number 604 is cataloged for the listed Chrysler, Dodge, and Plymouth applications.