6579 NGK Spark Plug; Laser Platinum Spark Plug
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NGK Spark Plug; Laser Platinum Spark Plug | 6579

Buick, Cadillac, Chevrolet, Ford, Lincoln, Mazda, Mercury, Pontiac
$9.51
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$9.91
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$15.07
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Make Sure It Fits

P/N: 6579 NGK
Description:
Laser Platinum Spark Plug

Spark plugs provide the spark needed to ignite the air/fuel mixture in each cylinder for engine combustion. High voltage from the ignition coil is transferred through the spark plug to an air gap between the spark plug tip and the spark plug ground to the engine. Once the voltage reaches the air gap, the voltage jumps the gap in the form of a spark, igniting a compressed air fuel charge inside the cylinder. The air fuel charge explodes, creating the force needed to push the cylinder down and turning the engine crankshaft to propel the engine. In short, spark plugs serve a vital function in keeping your vehicle running properly.

Components of a Spark Plug
  • A metal terminal that connects to the ignition system
  • A center electrode for current to flow through the spark plug with a tip for the current to jump making the spark
  • A ribbed ceramic insulator to keep current flowing through the spark plug center electrode and not into other parts of the engine
  • A threaded metal case to anchor the spark plug into the cylinder head with a ground electrode for the spark to jump to
  • A seal to seal the spark plug case to the cylinder head to prevent cylinder compression from escaping
Types of Spark Plugs

The biggest differences in spark plug construction are the materials used for the electrodes, their conductivity, and their wearability.

  • Copper is the base material for the center electrode on most spark plugs as it provides superb conductivity. These tend to wear quickly from the electrical transfer created by the spark and fully copper spark plugs need to be replaced every 15,000 miles.
  • Copper core spark plugs with yttrium or nickel tipped electrodes and grounds take longer to wear and can last up to 30,000 miles.
  • Platinum tipped copper core electrodes wear even less, provide superior conductivity, and can last up to 60,000 miles.
  • Iridium tipped copper core spark plugs wear the least and can last over 100,000 miles.

When a spark plug fails prematurely it will provide a weak spark or no spark at all. Causes of premature spark plug failure can include oil leaking from the valve cover into the spark plug chamber, your engine running too lean and overheating the spark plug, and your engine running too rich and fuel fouling the plug.

Most engines are designed to run on only one type of spark plug based on its use. Be sure to check your owner’s manual for the right type of spark plug needed for your vehicle.

View more NGK Spark Plugs.

Left = Driver side and Right = Passenger side.
All parts are priced individually unless identified as a set or kit. "Per car" notes identify how many of a given part your car has and "Left/Right or Front/Rear" notes means the part fits the left or right side of the car. These parts are still sold individually and you'll need to select the appropriate quantity if you plan to replace more than one of this item.

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What This NGK Spark Plug Fits?

Application information below is for reference only and should not be used to determine the exact vehicle fitment. Please use the "Make Sure It Fits" vehicle selection box above to determine the exact fitment and review any application notes. If you need any help determining if this part works with your vehicle, please don't hesitate to contact us.

Buick
94-96 - Roadmaster Base, Collector's Edition, Estate Wagon, Estate Wagon Collector's Edition, Limited & more
Cadillac
94-96 - Fleetwood Base, Brougham
Chevrolet
93-97 - Camaro Indianapolis 500 Pace Car, Z28
94-96 - Caprice Classic, Classic LS
93-95 - Corvette ZR-1
Engine VIN: J
92-96 - Corvette Base, 40th Anniversary Edition, Collector's Edition RWD, Grand Sport RWD, Indianapolis 500 Pace Car & more
Engine VIN: P
94-96 - Impala SS
Ford
86-97 - Aerostar Base, XL, XL Sport, XLT, XLT Sport
90-97 - Aerostar AWD Base, Eddie Bauer, XL, XL Plus, XLT & more
90-97 - Aerostar RWD Base, Eddie Bauer, XL, XL Plus, XLT & more
84-85 - Bronco II Base, Eddie Bauer, XLS, XLT
86-90 - Bronco II 4WD Base, Eddie Bauer, XL, XL Sport, XLT & more
86-90 - Bronco II RWD Base, Eddie Bauer, XL, XL Sport, XLT & more
95-00 - Contour GL, GL Sport, LX, LX Sport, SE & more
98-98 - Contour GL, LX, SE, SVT
Engine VIN: L
92-95 - Crown Victoria Base, LX, Police Interceptor, S, Touring Sedan
96-08 - Crown Victoria Base, LWB, LX, LX Sport, Police Interceptor & more
Fuel Type: GAS
03-08 - E-150 Base, Chateau, XL, XLT
04-04 - E-150
Engine VIN: W
97-02 - E-150 Econoline Base, XL
03-08 - E-250
04-04 - E-250
Engine VIN: W
04-04 - E-250
Fuel Type: CNG
97-97 - E-250 Econoline Base, XL
97-02 - E-250 Econoline Base, XL
Fuel Type: CNG
03-04 - E-350 Club Wagon Chateau, XL, XLT
Fuel Type: CNG
Lincoln
95-02 - Continental Base, Anniversary, Diamond Anniversary, Signature, Spinnaker Edition
93-98 - Mark VIII Base, Anniversary, LSC
91-10 - Town Car Base, Anniversary, Cartier, Cartier L, Cypress & more
08-08 - Town Car Executive, Executive L, Signature L, Signature Limited
Fuel Type: FLEX
Fuel Type: GAS
06-07 - Town Car Designer Series, Executive, Executive L, Signature, Signature L & more
Fuel Type: GAS
Mazda
03-05 - 6 i
98-01 - B2500 SE, SX, Troy Lee
98-06 - B3000 Base, DS, SE, SX
98-05 - B3000 4WD Base, SE, SE 4WD
98-05 - B3000 RWD Base, SE, SE RWD
95-03 - B4000 Base, DS, SE
94-96 - B4000 4WD LE, SE
94-96 - B4000 RWD LE, SE
91-91 - Navajo LX
92-94 - Navajo 4WD DX, LX
92-94 - Navajo RWD DX, LX
01-02 - Tribute 4WD DX, ES, LX
05-06 - Tribute AWD i
01-06 - Tribute FWD DX, ES, i, LX
Mercury
79-84 - Capri Base, Black Magic, Black Magic RWD, Crimson Cat, Crimson Cat RWD & more
84-02 - Cougar Base, S, V6, XR-7
92-09 - Grand Marquis GS, GSL, Limited Edition, LS, LSE & more
07-07 - Grand Marquis GS, LS
Fuel Type: GAS
82-82 - LN7
From 9/81; Engine VIN: 2
H.O. Engine VIN: 4
83-83 - LN7 Base, Grand Sport, RS, Sport
Fuel Delivery Type: CARB
85-85 - Lynx Base, GL, GS, L, XR3
82-82 - Lynx Base, GL, GS, L, LS & more
Engine VIN: 4
84-84 - Lynx Base, GL, GS, LS, LTS & more
Fuel Delivery Type: CARB
03-03 - Marauder
06-06 - Mariner Hybrid
Fuel Type: GAS
06-06 - Mariner 4WD Convenience
Fuel Type: GAS
06-06 - Mariner FWD Convenience
Fuel Type: GAS
84-84 - Marquis Base, Brougham
Engine VIN: 6
83-83 - Marquis Base, Brougham
Fuel Type: LPG
04-04 - Mountaineer Premier
98-03 - Mountaineer 4WD
97-05 - Mountaineer AWD Base, Premier
97-05 - Mountaineer RWD Base, Premier
Pontiac
93-97 - Firebird Formula, Trans Am, Trans Am GT