HomeIgnition > Secondary IgnitionBosch 7579 Spark Plug
Part #: 7579

Bosch 7579 Spark Plug

Nickel
⚙️ 52 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
📦Nickel
🚗Fitment: Buick, Ford, Mercury, Oldsmobile, and Pontiac, 98, Bonneville, Calais, Capri, Century, Cougar, Cutlass Calais, Cutlass Ciera, Cutlass Cruiser, Delta 88, F-100, Grand Am, LeSabre, LTD, Marquis, Mustang, Ranger, Riviera, Skylark, Tempo, Thunderbird, Topaz, and Toronado
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Reliable Ignition Performance for Select Buick and Ford Models

The Bosch Nickel 7579 spark plug is engineered to deliver consistent ignition performance for a range of Buick, Ford, Mercury, Oldsmobile, and Pontiac vehicles. Designed with a ceramic insulator and a tapered seat, this spark plug ensures proper fit and reliable operation in compatible engines.

  • Resistance: 6000 ohms for effective electrical noise suppression
  • Standard ground electrode tip and configuration for dependable spark delivery
  • Removable nut electrical terminal type for ease of connection
  • Pre-gap size of 1 mm optimized for ignition efficiency
  • Hex size of 16 mm for standard installation tools
  • Manufacturer heat range of 9 suitable for specific engine requirements
  • Tapered seat type ensuring secure fitment
  • Ceramic insulator material with non-projected insulator type for durability
  • Reach length of 17.5 mm compatible with designated engine designs
  • Single ground electrode for consistent spark generation
  • Designed for 4-cycle engines

About the Bosch Nickel Spark Plug Line

The Bosch Nickel product line focuses on delivering reliable ignition components with nickel alloy electrodes. This line balances durability and cost-effectiveness, making it suitable for a variety of secondary ignition applications. The 7579 spark plug benefits from this design approach, providing stable performance in compatible Buick, Ford, Mercury, Oldsmobile, and Pontiac models.

Detailed Product Description

The Bosch Nickel 7579 spark plug features a 6000 ohm resistor to reduce electromagnetic interference, protecting sensitive electronic systems in your vehicle. Its standard ground electrode tip and configuration ensure a consistent spark, while the removable nut terminal type allows for straightforward electrical connections. The ceramic insulator and tapered seat design contribute to heat resistance and proper sealing within the combustion chamber. With a heat range of 9 and a reach of 17.5 mm, this spark plug is engineered to meet the specific ignition needs of select 4-cycle engines.

Compatible Vehicles and Common Applications

  • Buick models including Century, LeSabre, Riviera, Skylark, and more
  • Ford trucks and cars such as F-100, Mustang, Ranger, and Tempo
  • Mercury vehicles including Cougar, Marquis, and Topaz
  • Oldsmobile models like Cutlass Calais, Cutlass Ciera, and Delta 88
  • Pontiac models including Bonneville, Grand Am, and Firebird

Common Issues Addressed by Bosch 7579 Spark Plug

  • Engine misfires and rough idling
  • Difficulty starting the engine
  • Poor fuel efficiency due to incomplete combustion
  • Reduced engine power and acceleration
  • Electrical interference affecting onboard electronics

Installation Notes and Tips

Ensure the spark plug gap is set to the specified 1 mm pre-gap before installation. Use a 16 mm socket wrench for proper tightening to avoid damage to the tapered seat. The removable nut terminal type facilitates easy connection to ignition wires. Always verify compatibility with your vehicle’s make and model to ensure optimal fit and performance.

Quality Assurance and Warranty

Bosch spark plugs are manufactured to meet strict quality standards, ensuring reliable ignition performance. The Nickel 7579 spark plug includes a resistor to minimize electrical noise and is constructed with durable ceramic insulators. While specific warranty details are not provided, Bosch products typically adhere to industry quality assurance practices.

BrandBosch
Part Number7579
PositionNickel
Resistance6000
Ground Electrode Tip DesignStandard
Ground ConfigurationStandard
Electrical Terminal TypeRemovable nut
Pre-Gap Size1
Ground Electrode Quantity1
Hex Size16
Manufacturer Heat Range9
Seat TypeTapered
Reach17.5
Insulator MaterialCeramic
Automotive Item Weight (lbs)0.083776 lb
Insulator TypeNon-projected
Outdoor Power Equipment ApplicationNo
Package ContentsSpark plug
Package Quantity1
ResistorYes
Short StyleNo
Spark Plug Type4-cycle

This part fits 52 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
1988BuickCentury3.8LV6N/ANickel
1988BuickLeSabre3.8LV6N/ANickel
1988BuickSkylark3.0LV6N/ANickel
1988FordRanger2.0LL4N/ANickel
1988OldsmobileCutlass Calais3.0LV6N/ANickel
1988OldsmobileCutlass Ciera3.8LV6N/ANickel
1988OldsmobileCutlass Cruiser3.8LV6N/ANickel
1988OldsmobileDelta 883.8LV6N/ANickel
1988PontiacBonneville3.8LV6N/ANickel
1987BuickCentury3.8LV6N/ANickel
1987BuickLeSabre3.8LV6N/ANickel
1987BuickRiviera3.8LV6N/ANickel
1987BuickSkylark3.0LV6N/ANickel
1987FordRanger2.0LL4N/ANickel
1987FordTempo2.3LL4N/ANickel
1987MercuryTopaz2.3LL4N/ANickel
1987Oldsmobile983.8LV6N/ANickel
1987OldsmobileCalais3.0LV6N/ANickel
1987OldsmobileCutlass Ciera3.8LV6N/ANickel
1987OldsmobileCutlass Cruiser3.8LV6N/ANickel
1987OldsmobileDelta 883.8LV6N/ANickel
1987OldsmobileToronado3.8LV6N/ANickel
1987PontiacBonneville3.8LV6N/ANickel
1987PontiacGrand Am3.0LV6N/ANickel
1986BuickCentury3.8LV6N/ANickel
1986BuickLeSabre3.8LV6N/ANickel
1986BuickRiviera3.8LV6N/ANickel
1986BuickSkylark3.0LV6N/ANickel
1986FordRanger2.0LL4N/ANickel
1986FordTempo2.3LL4N/ANickel
1986MercuryTopaz2.3LL4N/ANickel
1986Oldsmobile983.8LV6N/ANickel
1986OldsmobileCalais3.0LV6N/ANickel
1986OldsmobileCutlass Ciera3.8LV6N/ANickel
1986OldsmobileDelta 883.8LV6N/ANickel
1986OldsmobileToronado3.8LV6N/ANickel
1986PontiacGrand Am3.0LV6N/ANickel
1985FordRanger2.0LL4N/ANickel
1985FordTempo2.3LL4N/ANickel
1985MercuryTopaz2.3LL4N/ANickel
1985OldsmobileCalais3.0LV6N/ANickel
1985PontiacGrand Am3.0LV6N/ANickel
1984FordTempo2.3LL4N/ANickel
1984MercuryTopaz2.3LL4N/ANickel
1983FordF-1003.8LV6N/ANickel
1983FordLTD3.8LV6N/ANickel
1983FordMustang3.8LV6N/ANickel
1983FordThunderbird3.8LV6N/ANickel
1983MercuryCapri3.8LV6N/ANickel
1983MercuryCougar3.8LV6N/ANickel
1983MercuryMarquis3.8LV6N/ANickel
1982FordF-1003.8LV6N/ANickel

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.