3951 NGK Spark Plug; V-Power Spark Plug
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NGK Spark Plug; V-Power Spark Plug | 3951

Buick, Cadillac, Chevrolet, Ford, GMC, Isuzu, Lincoln, Mazda, Mercury, Oldsmobile & more
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Make Sure It Fits

P/N: 3951 NGK
Description:
V-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.
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
89-05 - Century Custom, Estate Wagon, Limited, Special, Special Edition
94-94 - Commercial Chassis
88-90 - Electra Limited, Park Avenue, Park Avenue Ultra, T-Type
05-08 - LaCrosse CX, CXL
89-05 - LeSabre Base, Custom, Limited
88-88 - LeSabre Base, Custom, Limited
Engine VIN: C
06-11 - Lucerne CX, CXL, CXS, Super
08-08 - Lucerne CXL, CXS, Super
Engine VIN: Y
91-05 - Park Avenue Base, Ultra
88-91 - Reatta
90-04 - Regal 25th Anniversary Edition, Custom, Gran Sport, GS, GSE & more
07-07 - Rendezvous CX, CXL
02-06 - Rendezvous AWD CX, CX Plus, CXL, CXL Plus
02-06 - Rendezvous FWD CX, CX Plus, CXL, CXL Plus
88-99 - Riviera Base, Luxury, T-Type
94-96 - Roadmaster Base, Collector's Edition, Estate Wagon, Estate Wagon Collector's Edition, Limited & more
89-98 - Skylark Base, Custom, Gran Sport, Limited, Luxury Edition & more
05-06 - Terraza AWD CX, CXL
05-06 - Terraza FWD CX, CXL
Cadillac
93-93 - 60 Special
87-93 - Allante Base, Indianapolis 500 Pace Car, Value Leader
85-94 - Commercial Chassis Base, Brougham
82-05 - DeVille Base, Cabriolet, Concours, d'Elegance, DHS & more
06-11 - DTS Base, Livery, Luxury, Platinum, Premium
08-09 - DTS Base, Luxury, Platinum
Engine VIN: Y
82-02 - Eldorado Base, Biarritz, Cabriolet, ESC, ETC & more
99-99 - Escalade
00-00 - Escalade 4WD
00-00 - Escalade RWD
82-96 - Fleetwood Base, 60 Special, 75, 75 Formal, Brougham & more
82-04 - Seville Base, Elegante, SLS, STS
07-09 - SRX AWD
07-09 - SRX RWD
07-10 - STS AWD Base, Platinum
07-10 - STS RWD Base, Platinum
07-09 - XLR Base, Platinum
Chevrolet
96-05 - Astro AWD Base, LS, LT
96-05 - Astro RWD Base, LS, LT
04-06 - Avalanche 2500 Base, LS, LT
02-03 - Avalanche 2500 4WD
02-03 - Avalanche 2500 RWD
94-96 - Beretta Base, Z26
99-05 - Blazer Trailblazer, Xtreme, ZR2
96-05 - Blazer 4WD Base, LS, LT, ZR2
96-97 - Blazer AWD LT
96-05 - Blazer RWD Base, LS, LT, ZR2
96-99 - C1500 Base, Cheyenne, LS, Silverado, WT
96-99 - C1500 Suburban Base, LS, LT
96-00 - C2500 Base, Cheyenne, LS, Silverado, WT
96-99 - C2500 Suburban Base, LS, LT
96-00 - C3500 Base, Cheyenne, LS, Silverado
93-02 - Camaro Base, Indianapolis 500 Pace Car, RS, Z28
94-96 - Caprice Classic, Classic LS
95-02 - Cavalier Base, LS, LS Sport, RS, Z24
94-96 - Corsica
Ford
91-97 - Aerostar XL Sport, 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
95-00 - Contour GL, GL Sport, LX, LX Sport, SE & more
98-98 - Contour GL, LX, SE, SVT
Engine VIN: G
Engine VIN: L
92-11 - Crown Victoria Base, LX, Police Interceptor, S, Touring Sedan
06-08 - Crown Victoria Base, LX, LX Sport, Police Interceptor
Fuel Type: FLEX
Fuel Type: GAS
96-07 - Crown Victoria Base, LWB, LX, LX Sport, Police Interceptor & more
Fuel Type: GAS
03-14 - E-150 Base, Chateau, XL, XLT
04-04 - E-150
Engine VIN: W
04-05 - E-150
Fuel Type: GAS
97-02 - E-150 Econoline Base, XL
03-14 - E-250
04-04 - E-250
Engine VIN: W
03-05 - E-250
Fuel Type: GAS
97-97 - E-250 Econoline Base, XL
98-99 - E-250 Econoline Base, XL
Fuel Type: BI-FUEL
Fuel Type: GAS
97-02 - E-250 Econoline Base, XL
Fuel Type: GAS
05-05 - E-350 Club Wagon Chateau, XL, XLT
GMC
96-99 - C1500 Sierra GT, Sierra SL, Sierra SLE, Sierra SLT, Sierra Special
96-99 - C1500 Suburban Base, SLE, SLT
96-00 - C2500 Sierra SL, Sierra SLE, Sierra SLT
96-99 - C2500 Suburban Base, SLE, SLT
96-00 - C3500 Sierra SL, Sierra SLE, Sierra SLT
98-00 - Jimmy Envoy
96-01 - Jimmy 4WD Base, Diamond Edition, SL, SLE, SLS & more
01-01 - Jimmy AWD SL
96-01 - Jimmy RWD Base, Diamond Edition, SL, SLE, SLS & more
96-99 - K1500 Sierra SL, Sierra SLE, Sierra SLT, Sierra Special
96-99 - K1500 Suburban Base, SLE, SLT
96-00 - K2500 Sierra SL, Sierra SLE, Sierra SLT
96-99 - K2500 Suburban Base, SLE, SLT
96-00 - K3500 Sierra SL, Sierra SLE, Sierra SLT
96-99 - P3500
98-99 - P3500
Engine VIN: B
Engine VIN: J
96-96 - P3500
Engine VIN: J
97-97 - P3500
Engine VIN: N
96-96 - P3500
Engine VIN: R
Isuzu
97-97 - Hombre S, XS
98-99 - Hombre 4WD S, XS
98-99 - Hombre RWD S, XS
Lincoln
03-05 - Aviator AWD
03-05 - Aviator RWD
02-02 - Blackwood
95-02 - Continental Base, Anniversary, Diamond Anniversary, Signature, Spinnaker Edition
93-98 - Mark VIII Base, Anniversary, LSC
98-04 - Navigator 4WD
98-04 - Navigator RWD
91-11 - Town Car Base, Anniversary, Cartier, Cartier L, Cypress & more
06-08 - Town Car Designer Series, Executive, Executive L, Signature, Signature L & more
Fuel Type: GAS
Mazda
03-05 - 6 i
04-07 - B3000 Base, DS, SE
05-05 - B3000 4WD
05-05 - B3000 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
01-03 - Tribute 4WD DX, ES, LX
05-06 - Tribute AWD i
01-06 - Tribute FWD DX, ES, i, LX
Mercury
94-02 - Cougar Base, S, V6, XR-7
92-11 - Grand Marquis GS, GSL, Limited Edition, LS, LSE & more
07-07 - Grand Marquis GS, LS
Fuel Type: GAS
03-04 - Marauder
06-06 - Mariner Hybrid
Fuel Type: GAS
05-05 - Mariner 4WD
06-06 - Mariner 4WD Convenience
Fuel Type: GAS
05-05 - Mariner FWD
06-06 - Mariner FWD Convenience
Fuel Type: GAS
04-04 - Mountaineer Premier
98-03 - Mountaineer 4WD
97-05 - Mountaineer AWD Base, Premier
97-05 - Mountaineer RWD Base, Premier
95-00 - Mystique Base, GS, GS Spree, LS, LS Young America
96-03 - Sable LS FWD, LS Premium FWD
Engine VIN: S
89-94 - Topaz GS, GS AWD, LS, LS AWD, LTS & more
Oldsmobile
92-99 - 88 50th Anniversary Edition, Royale, Royale LS, Royale LSS
88-96 - 98 Regency, Regency Brougham, Regency Elite, Regency Touring, Touring
92-98 - Achieva S, SC, SL
99-04 - Alero GL, GLS, GX
95-03 - Aurora
96-01 - Bravada
97-99 - Cutlass Base, GL, GLS
89-91 - Cutlass Calais S, SL
89-96 - Cutlass Ciera Base, GT, S, SL
89-94 - Cutlass Cruiser Base, S, SL, Special Edition
94-97 - Cutlass Supreme Base, S, SL
93-93 - Cutlass Supreme Base, International, S
Engine VIN: M
89-91 - Delta 88 Royale, Royale Brougham
88-88 - Delta 88 Royale, Royale Brougham
Engine VIN: C
98-02 - Intrigue Base, GL, GLS, GX
96-99 - LSS
97-98 - Regency
92-04 - Silhouette Base, GL, GLS, GS, Premiere
02-04 - Silhouette AWD GLS, Premiere
Pontiac
01-05 - Aztek AWD Base, GT, Rally
01-05 - Aztek FWD Base, GT, Rally
89-05 - Bonneville GXP, LE, SE, SLE, SSE & more
88-88 - Bonneville LE, SE, SSE
Engine VIN: C
93-02 - Firebird Base, Formula, Trans Am, Trans Am GT
05-06 - G6 Base, GT
92-05 - Grand Am GT, GT1, SE, SE1, SE2
94-08 - Grand Prix Base, GT, GT1, GT2, GTP & more
99-05 - Montana
02-06 - Montana AWD Base, SV6
02-06 - Montana FWD Base, SV6
95-02 - Sunfire GT, SE
06-07 - Torrent AWD
06-07 - Torrent FWD
92-98 - Trans Sport Base, Montana