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Standard Ignition 6459 Spark Plug Wire SetOE Quality 60-Day Returns
Part #: 6459

Standard Ignition 6459 Spark Plug Wire Set

82 vehicles fit this part
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Fitment: Ford and Mercury, Aerostar, Bobcat, Capri, Cougar, Fairmont, Fiesta, LTD, Marquis, Mustang, Pinto, Ranger, Thunderbird, and Zephyr
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Standard Ignition 6459 Spark Plug Wire Set

Standard Ignition 6459 is a spark plug wire set built for Ford and Mercury applications from 1977-1993. It uses premium silicone wire construction and high-temperature spark plug boots to handle heat, abrasion, and other underhood conditions that can shorten wire life.

Key Features

  • Premium silicone wire construction for durable ignition performance
  • High-temperature spark plug boots for added protection at the plug end
  • High dielectric resistance to help reduce electrical leakage
  • Temperature and abrasion protection for long-term service life
  • Direct-fit replacement for select Ford Mustang, Ranger, Thunderbird, and related models

Product Details

This Standard Ignition 6459 spark plug wire set is built for older Ford and Mercury vehicles that need dependable ignition wire routing and insulation. It is compatible with 1979-1990 Ford Mustang, 1991-1992 Ford Mustang with single plug engine, 1993 Ford Mustang, 1983-1988 Ford Ranger, 1989-1990 Ford Ranger with single plug engine, 1983-1988 Ford Thunderbird, 1986-1987 Ford Aerostar, 1983-1986 Ford LTD, 1977-1980 Ford Pinto, 1978-1980 Ford Fiesta, 1978-1983 Ford Fairmont, 1979-1986 Mercury Capri, 1977 Mercury Capri, 1981-1982 Mercury Cougar, 1984-1986 Mercury Cougar, 1983-1986 Mercury Marquis, 1978-1983 Mercury Zephyr, and 1977-1980 Mercury Bobcat. The 6459 part number is also referenced for related ignition wire applications, including Federal Parts 2970.

Common Issues It Can Address

  • Cracked or heat-damaged plug wire insulation
  • Misfire caused by worn ignition wire boots
  • Electrical leakage from aged wire sets
  • Hard starting related to weak spark delivery
  • Intermittent ignition performance in high-heat engine bays

Installation Notes and Tips

Match each wire to the correct cylinder before removal, then route the replacement set away from exhaust heat and moving components. Confirm the application details for your vehicle, especially 1991-1992 Ford Mustang and 1989-1990 Ford Ranger models with single plug engine notes. Standard Ignition 6459 is intended for direct replacement use on the listed Ford and Mercury vehicles.

Quality Assurance

Standard Ignition specifies silicone wire construction, high-temperature boots, and insulation protection against heat, abrasion, and dielectric breakdown for durable ignition service.

This part fits 82 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
1993FordMustang2.3LL4N/A
1992FordMustang2.3LL4N/ASingle Plug Engine
1991FordMustang2.3LL4N/ASingle Plug Engine
1990FordMustang2.3LL4N/A
1990FordRanger2.3LL4N/ASingle Plug Engine
1989FordMustang2.3LL4N/A
1989FordRanger2.3LL4N/ASingle Plug Engine
1988FordMustang2.3LL4N/A
1988FordRanger2.3LL4N/A
1988FordRanger2.0LL4N/A
1988FordThunderbird2.3LL4N/A
1987FordAerostar2.3LL4N/A
1987FordMustang2.3LL4N/A
1987FordRanger2.3LL4N/A
1987FordRanger2.0LL4N/A
1987FordThunderbird2.3LL4N/A
1986FordAerostar2.3LL4N/A
1986FordLTD2.3LL4N/A
1986FordMustang2.3LL4N/A
1986FordRanger2.3LL4N/A
1986FordRanger2.0LL4N/A
1986FordThunderbird2.3LL4N/A
1986MercuryCapri2.3LL4N/A
1986MercuryCougar2.3LL4N/A
1986MercuryMarquis2.3LL4N/A
1985FordLTD2.3LL4N/A
1985FordMustang2.3LL4N/A
1985FordRanger2.0LL4N/A
1985FordRanger2.3LL4N/A
1985FordThunderbird2.3LL4N/A
1985MercuryCapri2.3LL4N/A
1985MercuryCougar2.3LL4N/A
1985MercuryMarquis2.3LL4N/A
1984FordLTD2.3LL4N/A
1984FordMustang2.3LL4N/A
1984FordRanger2.0LL4N/A
1984FordRanger2.3LL4N/A
1984FordThunderbird2.3LL4N/A
1984MercuryCapri2.3LL4N/A
1984MercuryCougar2.3LL4N/A
1984MercuryMarquis2.3LL4N/A
1983FordFairmont2.3LL4N/A
1983FordLTD2.3LL4N/A
1983FordMustang2.3LL4N/A
1983FordRanger2.0LL4N/A
1983FordRanger2.3LL4N/A
1983FordThunderbird2.3LL4N/A
1983MercuryCapri2.3LL4N/A
1983MercuryMarquis2.3LL4N/A
1983MercuryZephyr2.3LL4N/A
1982FordFairmont2.3LL4N/A
1982FordMustang2.3LL4N/A
1982MercuryCapri2.3LL4N/A
1982MercuryCougar2.3LL4N/A
1982MercuryZephyr2.3LL4N/A
1981FordFairmont2.3LL4N/A
1981FordMustang2.3LL4N/A
1981MercuryCapri2.3LL4N/A
1981MercuryCougar2.3LL4N/A
1981MercuryZephyr2.3LL4N/A
1980FordFairmont2.3LL4N/A
1980FordFiesta1.6LL4N/A
1980FordMustang2.3LL4N/A
1980FordPinto2.3LL4N/A
1980MercuryBobcat2.3LL4N/A
1980MercuryCapri2.3LL4N/A
1980MercuryZephyr2.3LL4N/A
1979FordFairmont2.3LL4N/A
1979FordFiesta1.6LL4N/A
1979FordMustang2.3LL4N/A
1979FordPinto2.3LL4N/A
1979MercuryBobcat2.3LL4N/A
1979MercuryCapri2.3LL4N/A
1979MercuryZephyr2.3LL4N/A
1978FordFairmont2.3LL4N/A
1978FordFiesta1.6LL4N/A
1978FordPinto2.3LL4N/A
1978MercuryBobcat2.3LL4N/A
1978MercuryZephyr2.3LL4N/A
1977FordPinto2.3LL4N/A
1977MercuryBobcat2.3LL4N/A
1977MercuryCapri2.3LL4N/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:

29703386034109E3PZ12259ABR

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

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