7159 NGK Spark Plug; G-Power Spark Plug
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NGK Spark Plug; G-Power Spark Plug | 7159

Buick, Chevrolet, Ford, GMC, Lincoln, Mazda, Mercury, Oldsmobile, Pontiac
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P/N: 7159 NGK
Description:
G-Power 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.
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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
94-95 - Century Custom, Special
Chevrolet
94-96 - Beretta
94-97 - Cavalier Base, LS, RS, VL
94-96 - Corsica
94-95 - LLV
94-97 - S10 SS, ZR2
94-97 - S10 4WD Base, LS
97-97 - S10 FWD
94-97 - S10 RWD Base, LS
Ford
87-91 - Country Squire Base, LX
98-02 - E-150 Econoline Base, XL
98-02 - E-150 Econoline Club Wagon Chateau, Custom, XL, XLT
98-02 - E-250 Econoline Base, XL
91-96 - Escort Base, LX, LX Sport, Sport
98-02 - Escort LX, SE, ZX2, ZX2 Cool Coupe, ZX2 Hot Coupe & more
Engine VIN: P
06-10 - Explorer 4WD Eddie Bauer, Limited, XLS, XLT
06-10 - Explorer RWD Eddie Bauer, Limited, XLS, XLT
07-10 - Explorer Sport Trac 4WD Limited, XLT
09-09 - Explorer Sport Trac AWD Limited
07-10 - Explorer Sport Trac RWD Limited, XLT
98-02 - F-150 4WD Base, XL, XLT
98-02 - F-150 RWD Base, XL, XLT
00-04 - Focus LX, SE, Sony Limited Edition, SVT, ZTS & more
Engine VIN: P
06-07 - Freestar Limited, SEL
85-86 - LTD Base, Brougham, Country Squire, Country Squire LX, Crown Victoria & more
87-91 - LTD Crown Victoria Base, LX, S
85-10 - Mustang Base, GT, LX
05-09 - Ranger FX4, STX
GMC
94-97 - Sonoma 4WD SL, SLE, SLS
94-97 - Sonoma RWD SL, SLE, SLS
Lincoln
86-94 - Continental Base, Executive, Givenchy, Signature
86-86 - Mark VII Base, Bill Blass, LSC
87-87 - Mark VII Base, Bill Blass, LSC
Engine VIN: F
85-85 - Mark VII Base, Bill Blass, LSC, Versace
Engine VIN: M
86-90 - Town Car Base, Cartier, Cypress, Executive, Signature & more
Mazda
04-09 - B4000 Base, DS, SE
01-02 - B4000 Base, DS, SE
Engine VIN: E
Mercury
84-86 - Capri 5.0, GS
87-91 - Colony Park GS, LS
85-97 - Cougar Base, LS, XR-7
86-91 - Grand Marquis Base, Colony Park, GS, LS
83-86 - Marquis Base, Brougham
04-07 - Monterey Base, Luxury, Premier
06-10 - Mountaineer AWD Base, Convenience, Luxury, Premier
06-10 - Mountaineer RWD Base, Convenience, Luxury, Premier
88-95 - Sable GS, LS
91-99 - Tracer Base, GS, LS, Trio
Oldsmobile
94-96 - Cutlass Ciera Base, S
Pontiac
95-97 - Sunfire SE