HomeIgnition > Ignition Wire and Related ComponentsStandard Wires 55421 Spark Plug Wire Set
Part #: 55421

Standard Wires 55421 Spark Plug Wire Set

⚙️ 22 vehicles fit this part
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Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Jaguar, Vanden Plas, XJ6, XJR, and XJS
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Reliable Spark Plug Wire Set for Jaguar Vanden Plas and XJ Models

The Standard Wires 55421 spark plug wire set is designed specifically for Jaguar vehicles, including the Vanden Plas, XJ6, XJR, and XJS models. This ignition wire set ensures consistent electrical conductivity and reliable engine performance for your Jaguar.

  • Compatible with Jaguar Vanden Plas, XJ6, XJR, and XJS models
  • Part number 55421 for precise fitment and easy identification
  • Constructed to maintain optimal spark delivery and reduce misfires
  • Durable insulation to withstand high engine temperatures and prevent electrical interference
  • Designed to meet or exceed OEM specifications for ignition wire sets

Product Details and Compatibility

The Standard Wires 55421 spark plug wire set is engineered to provide a direct replacement for ignition wires on select Jaguar models. This set supports the ignition system by delivering high voltage from the ignition coil to the spark plugs, ensuring efficient combustion. Compatible with Jaguar Vanden Plas, XJ6, XJR, and XJS vehicles, this wire set is tailored to fit the specific routing and length requirements of these models. Using the correct spark plug wires helps maintain engine smoothness and fuel efficiency.

Common Applications and Problem Resolution

  • Resolves engine misfires caused by worn or damaged ignition wires
  • Eliminates rough idling and hesitation during acceleration
  • Prevents voltage leaks that can affect ignition timing
  • Reduces electromagnetic interference that can impact vehicle electronics
  • Restores proper spark delivery for improved engine performance

Installation Notes and Tips

When installing the Standard Wires 55421 spark plug wire set, ensure the engine is cool to avoid burns. Replace wires one at a time to maintain correct firing order and prevent cross-connection. Verify that each wire is securely connected to both the spark plug and ignition coil terminals. Inspect the boots and terminals for proper seating to avoid arcing or misfires. Follow the vehicle’s service manual for torque specifications and routing guidelines.

Quality Assurance and Warranty Information

Standard Wires manufactures the 55421 spark plug wire set to meet stringent quality standards, ensuring durability and reliable performance. This product is designed to meet or exceed OEM specifications for ignition wire sets on Jaguar Vanden Plas, XJ6, XJR, and XJS models. While specific warranty details may vary, Standard Wires typically offers coverage against defects in materials and workmanship. Consult the product packaging or manufacturer for exact warranty terms.

This part fits 22 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
1995JaguarVanden Plas4.0LL6N/Aw/o Direct Ignition
1995JaguarXJ64.0LL6N/Aw/o Direct Ignition
1995JaguarXJR4.0LL6N/Aw/o Direct Ignition
1995JaguarXJS4.0LL6N/Aw/o Direct Ignition
1994JaguarVanden Plas4.0LL6N/A
1994JaguarXJ64.0LL6N/A
1994JaguarXJS4.0LL6N/A
1993JaguarVanden Plas4.0LL6N/A
1993JaguarXJ64.0LL6N/A
1993JaguarXJS4.0LL6N/A
1992JaguarVanden Plas4.0LL6N/A
1992JaguarXJ64.0LL6N/A
1992JaguarXJS4.0LL6N/A
1991JaguarVanden Plas4.0LL6N/A
1991JaguarXJ64.0LL6N/A
1990JaguarVanden Plas4.0LL6N/A
1990JaguarXJ64.0LL6N/A
1989JaguarVanden Plas3.6LL6N/A
1989JaguarXJ63.6LL6N/A
1988JaguarVanden Plas3.6LL6N/A
1988JaguarXJ63.6LL6N/A
1987JaguarXJ63.6LL6N/A

* 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:

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