GM Spark Plugs

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You probably don't spend a lot of time thinking about the factory spark plugs that came in your GM vehicle. That's good. It means they're doing their job. That's to produce the flash that ignites the air-and-fuel mix in your engine's combustion chamber. That's what allows your ignition to start the engine.

How Spark Plugs Work

The spark plugs create that flash, or spark, by firing an arc of electricity across the gap between two leads. If your GM runs on diesel, though, you don't have spark plugs. Instead, your engine is equipped with glow plugs. The heating element in your glowplug's tip ignites the fuel mist that is sprayed into the engine cylinder.

How Do You Know When Your Spark Plugs are Going Bad?

It's common for people to think that their alternator is at fault when their vehicle begins to suffer engine misfires and shutdowns. However, you should first check your spark plugs if you experience any of the following:

  • Unsteady idling
  • Your engine starts to misfire
  • You have trouble starting your vehicle
  • The Check Engine light triggers

The high-quality original spark plugs in your car, pickup, or SUV will eventually weaken in time. The gaps may have widened to the point where the spark is insufficient, or they've become corroded. Consult your owner's manual to determine how long you should expect your plugs to perform their best. You want to change them out before they reach that rated mileage, or else you're risking engine issues. When it is time to change your spark plugs, make sure to only choose the high-quality GM plugs that were designed for your model and its engine. You’ll find a great selection of them in stock at our online parts department. Buy today and save!

Spark Plug
Part Number: 21025102
Fits:
  • Saturn:
    • SC1,
    • SC2,
    • SL,
    • SL1,
    • SL2,
    • SW1,
    • SW2
  • 2 more
MSRP $4.72
$2.55
MSRP $4.72
$2.55
Spark Plug
Part Number: 12556183
Description: Platinum. More Info
Fits:
  • Oldsmobile:
    • Aurora,
    • Intrigue
MSRP $11.24
$6.07
MSRP $11.24
$6.07
Spark Plug
Part Number: 12592619
Description: 4.4L. More Info
Fits:
  • Cadillac:
    • STS,
    • XLR
MSRP $10.66
$5.76
MSRP $10.66
$5.76
Spark Plug
Part Number: 12622442
Fits:
  • Chevrolet:
    • Corvette
MSRP $31.54
$17.03
MSRP $31.54
$17.03
Spark Plug
Part Number: 12646780
Description: Coupe, 3.6L without twin-turbo. More Info
Fits:
  • Buick:
    • LaCrosse,
    • Regal Sportback
  • Cadillac:
    • ATS,
    • CT6,
    • CTS,
    • XT5,
    • XT6
  • Chevrolet:
    • Blazer,
    • Camaro,
    • Colorado
  • GMC:
    • Acadia,
    • Canyon
  • 7 more
MSRP $14.28
$7.71
MSRP $14.28
$7.71
Spark Plug
Part Number: 12650283
Other Names: F (S)Spark Plug More Names
Description: 3.0L. More Info
Fits:
  • Cadillac:
    • CT5,
    • CT6
MSRP $14.28
$7.71
MSRP $14.28
$7.71
Spark Plug
Part Number: 12672175
Other Names: F (S)Spark Plug More Names
Description: 4.2L twin-turbo. More Info
Fits:
  • Cadillac:
    • CT6
MSRP $14.28
$7.71
MSRP $14.28
$7.71
Spark Plug
Part Number: 12680075
Replaces: 12610767
Description: 2.0L. More Info
Fits:
  • Chevrolet:
    • Cobalt
  • Saturn:
    • Ion
MSRP $13.10
$7.07
MSRP $13.10
$7.07
Spark Plug
Part Number: 12681662
Positions: Left, Right
Replaces: 12591131
Description: 3.5L. 3.9L. More Info
Fits:
  • Buick:
    • Lucerne,
    • Terraza
  • Chevrolet:
    • Impala,
    • Malibu,
    • Monte Carlo,
    • Uplander
  • Pontiac:
    • G6,
    • Montana
  • Saturn:
    • Aura,
    • Relay,
    • Vue
  • 6 more
MSRP $14.28
$7.71
MSRP $14.28
$7.71
Spark Plug
Part Number: 12681664
Positions: Left, Right
Replaces: 12568387
Description: Vendor:acdelco. Vendor #41-101. 3.4L. 3.5L. Iridium. 4.3L. Platinum. Vendor #41-921. 3.1L. 3.8L, without supercharged. More Info
Fits:
  • Buick:
    • Century,
    • LaCrosse,
    • LeSabre,
    • Lucerne,
    • Park Avenue,
    • Regal,
    • Rendezvous,
    • Riviera,
    • Terraza
  • Chevrolet:
    • Camaro,
    • Equinox,
    • Express 1500,
    • Impala,
    • Lumina,
    • Malibu,
    • Monte Carlo,
    • Silverado 1500,
    • Uplander,
    • Venture
  • GMC:
    • Savana 1500,
    • Sierra 1500
  • Oldsmobile:
    • 88,
    • 98,
    • Alero,
    • Intrigue,
    • LSS,
    • Regency,
    • Silhouette
  • Pontiac:
    • Aztek,
    • Bonneville,
    • Firebird,
    • G6,
    • Grand Am,
    • Grand Prix,
    • Montana,
    • Torrent
  • Saturn:
    • Relay
  • 32 more
MSRP $14.28
$7.71
MSRP $14.28
$7.71
Spark Plug
Part Number: 12683541
Replaces: 55490097
Description: With high output. 1.5L turbo, ac delco markings. 1.2L turbo. 1.4L, acdelco # 1267411. 1.4L, acdelco # 41-151. Vendor #41-156. More Info
Fits:
  • Buick:
    • Cascada,
    • Encore,
    • Encore GX
  • Chevrolet:
    • Cruze,
    • Equinox,
    • Malibu,
    • Trailblazer,
    • Trax
  • GMC:
    • Terrain
  • 4 more
MSRP $14.28
$7.71
MSRP $14.28
$7.71
Spark Plug
Part Number: 92457960
Other Names: F (S)Spark Plug More Names
Description: 3.6L, with bi-fuel. More Info
Fits:
  • Chevrolet:
    • Impala
MSRP $14.28
$7.71
MSRP $14.28
$7.71
Spark Plug
Part Number: 94859448
Description: Vendor #SK16R11. 1.8l without ho. More Info
Fits:
  • Chevrolet:
    • Prizm
  • Pontiac:
    • Vibe
MSRP $25.34
$13.68
MSRP $25.34
$13.68
Spark Plug
Part Number: 95519058
Replaces: 93176801
Fits:
  • Saturn:
    • Astra
MSRP $11.60
$6.26
MSRP $11.60
$6.26
Spark Plug
Part Number: 96130723
Description: 2007-08. More Info
Fits:
  • Chevrolet:
    • Aveo,
    • Aveo5
MSRP $11.60
$6.26
MSRP $11.60
$6.26
Spark Plug
Part Number: 5613882
Fits:
  • Oldsmobile:
    • Cutlass Salon,
    • Cutlass Supreme
MSRP $3.22
$1.74
MSRP $3.22
$1.74
Spark Plug
Part Number: 5614046
Description: Vendor:acdelco. Vendor #R43CTS6. More Info
Fits:
  • Buick:
    • Century,
    • Skylark,
    • Somerset,
    • Somerset Regal
  • Chevrolet:
    • Astro,
    • Camaro,
    • Celebrity,
    • Citation II,
    • LLV,
    • Lumina,
    • S10,
    • S10 Blazer
  • GMC:
    • Jimmy S15,
    • S15,
    • Safari,
    • Sonoma
  • Oldsmobile:
    • Calais,
    • Cutlass Calais,
    • Cutlass Ciera,
    • Cutlass Cruiser
  • Pontiac:
    • 6000,
    • Fiero,
    • Firebird,
    • Grand Am
  • 19 more
MSRP $2.90
$1.57
MSRP $2.90
$1.57
Spark Plug
Part Number: 5614281
Description: Platinum. More Info
Fits:
  • Buick:
    • Century
  • Chevrolet:
    • Beretta,
    • Cavalier,
    • Corsica,
    • S10
  • GMC:
    • Sonoma
  • Oldsmobile:
    • Cutlass Ciera
  • 2 more
MSRP $10.66
$5.76
MSRP $10.66
$5.76
Spark Plug
Part Number: 88901006
Other Names: Spark Plug Pkg More Names
Description: Platinum. Vendor:acdelco. Vendor #41-800. More Info
Fits:
  • Chevrolet:
    • Corvette
MSRP $11.02
$5.95
MSRP $11.02
$5.95
Spark Plug
Part Number: 88901021
Other Names: Spark Plug Pkg More Names
Description: Platinum. More Info
Fits:
  • Oldsmobile:
    • Cutlass Salon,
    • Toronado
MSRP $11.02
$5.95
MSRP $11.02
$5.95
Spark Plug
Part Number: 19300384
Replaces: 19157992
Description: 4.3L, 2003-2007. Optional. Vendor:acdelco. Standard. Vendor #R44LTS6. More Info
Fits:
  • Buick:
    • Electra,
    • LeSabre,
    • Reatta,
    • Riviera
  • Cadillac:
    • Allante,
    • Commercial Chassis,
    • DeVille,
    • Eldorado,
    • Fleetwood,
    • Seville
  • Chevrolet:
    • Express 1500,
    • Express 2500
  • GMC:
    • Savana 1500,
    • Savana 2500
  • Oldsmobile:
    • 98,
    • Delta 88,
    • Toronado
  • Pontiac:
    • Bonneville
  • 13 more
MSRP $3.36
$1.81
MSRP $3.36
$1.81
Spark Plug
Part Number: 19300873
Fits:
  • Buick:
    • LeSabre,
    • Regal
  • Oldsmobile:
    • Cutlass Salon,
    • Cutlass Supreme,
    • Delta 88
  • Pontiac:
    • Bonneville,
    • Grand Prix
  • 2 more
MSRP $3.22
$1.74
MSRP $3.22
$1.74
Spark Plug
Part Number: 19300874
Description: Standard. Vendor:acdelco. Vendor #R42TS. More Info
Fits:
  • Buick:
    • Skyhawk,
    • Skylark
  • Cadillac:
    • Cimarron
  • Chevrolet:
    • Camaro,
    • Cavalier,
    • Celebrity,
    • Chevette,
    • Citation II,
    • S10,
    • S10 Blazer
  • GMC:
    • Jimmy S15,
    • S15
  • Oldsmobile:
    • Cutlass Ciera,
    • Firenza
  • Pontiac:
    • 6000,
    • Fiero,
    • Firebird,
    • J2000 Sunbird,
    • Sunbird,
    • T1000
  • 15 more
MSRP $3.60
$1.94
MSRP $3.60
$1.94
Spark Plug
Part Number: 19301805
Other Names: F (S)Spark Plug More Names
Replaces: 19208527, 19244462
Fits:
  • Buick:
    • Skylark
  • Oldsmobile:
    • Achieva
  • Pontiac:
    • Grand Am,
    • Sunfire
MSRP $11.60
$6.26
MSRP $11.60
$6.26
Spark Plug
Part Number: 19301811
Replaces: 19301320
Description: 2.4L. Platinum. Vendor:acdelco. Vendor #41-913. More Info
Fits:
  • Chevrolet:
    • Cavalier,
    • Corvette,
    • Malibu
  • Oldsmobile:
    • Alero
  • Pontiac:
    • Grand Am,
    • Sunfire
  • 1 more
MSRP $11.60
$6.26
MSRP $11.60
$6.26
Spark Plug
Part Number: 19301812
Description: Platinum. More Info
Fits:
  • Chevrolet:
    • Cavalier,
    • S10
  • GMC:
    • S15,
    • Sonoma
  • Pontiac:
    • Sunfire
MSRP $11.60
$6.26
MSRP $11.60
$6.26
Spark Plug
Part Number: 19302723
Description: Conventional. Vendor:acdelco. More Info
Fits:
  • Buick:
    • Century,
    • LeSabre,
    • Park Avenue,
    • Regal,
    • Riviera,
    • Skylark
  • Chevrolet:
    • Lumina APV
  • Oldsmobile:
    • 88,
    • 98,
    • Achieva,
    • Cutlass Ciera,
    • Cutlass Cruiser,
    • Silhouette,
    • Toronado
  • Pontiac:
    • Bonneville,
    • Grand Am,
    • Trans Sport
  • 12 more
MSRP $3.60
$1.94
MSRP $3.60
$1.94
Spark Plug
Part Number: 19302726
Description: Aluminum Cylinder Head. Vendor:bosch. Vendor #FR3LS. More Info
Fits:
  • Buick:
    • Skylark
  • Chevrolet:
    • Beretta,
    • Corvette
  • Oldsmobile:
    • Achieva,
    • Calais,
    • Cutlass Calais,
    • Cutlass Supreme
  • Pontiac:
    • Grand Am,
    • Grand Prix
  • 4 more
MSRP $3.60
$1.94
MSRP $3.60
$1.94
Spark Plug
Part Number: 19302728
Fits:
  • Buick:
    • Century,
    • Regal,
    • Skylark
  • Chevrolet:
    • Beretta,
    • Corsica,
    • Lumina,
    • Monte Carlo
  • Oldsmobile:
    • Achieva,
    • Cutlass Ciera,
    • Cutlass Cruiser,
    • Cutlass Supreme
  • Pontiac:
    • Grand Am,
    • Grand Prix
  • 8 more
MSRP $3.00
$1.62
MSRP $3.00
$1.62
Spark Plug
Part Number: 19302742
Replaces: 5614229
Fits:
  • Cadillac:
    • Brougham
  • Chevrolet:
    • Camaro
  • Pontiac:
    • Firebird
MSRP $3.60
$1.94
MSRP $3.60
$1.94
Spark Plug
Part Number: 19308030
Replaces: 19145287, 19238456, 19250964
Description: Rapid Fire. Vendor:acdelco. Vendor #5. More Info
Fits:
  • Chevrolet:
    • Corvette
MSRP $6.62
$3.57
MSRP $6.62
$3.57
Spark Plug
Part Number: 19316339
Fits:
  • Chevrolet:
    • City Express
MSRP $31.58
$17.05
MSRP $31.58
$17.05
Spark Plug
Part Number: 19354423
Replaces: 19310643, 5613522
Description: Optional. Vendor:acdelco. Vendor #R43XLS. More Info
Fits:
  • Chevrolet:
    • Nova,
    • S10,
    • Spectrum,
    • Sprint
  • GMC:
    • S15
  • Pontiac:
    • Sunbird
  • 1 more
MSRP $3.60
$1.94
MSRP $3.60
$1.94
Spark Plug
Part Number: 12642722
Description: 6.2L supercharged. 6.2L. with supercharger. More Info
Fits:
  • Cadillac:
    • CTS
  • Chevrolet:
    • Camaro,
    • Corvette
MSRP $14.28
$7.71
MSRP $14.28
$7.71
Spark Plug
Part Number: 12674112
Description: 1.4L, acdelco # 1267411. More Info
Fits:
  • Chevrolet:
    • Cruze
MSRP $14.28
$7.71
MSRP $14.28
$7.71
Spark Plug
Part Number: 12680072
Description: 6.0L. Iridium. Vendor:acdelco. Vendor #41-985. More Info
Fits:
  • Cadillac:
    • Escalade,
    • Escalade ESV,
    • Escalade EXT
  • Chevrolet:
    • Avalanche,
    • Avalanche 1500,
    • Camaro,
    • Caprice,
    • Colorado,
    • Corvette,
    • Express 1500,
    • Express 2500,
    • Express 3500,
    • LCF 3500,
    • Silverado 1500,
    • Silverado 2500 HD,
    • Silverado 3500 HD,
    • SS,
    • Suburban 1500,
    • Suburban 2500,
    • Suburban 3500 HD,
    • Tahoe
  • GMC:
    • Canyon,
    • Savana 1500,
    • Savana 2500,
    • Savana 3500,
    • Sierra 1500,
    • Sierra 2500 HD,
    • Sierra 3500 HD,
    • Yukon,
    • Yukon XL 1500,
    • Yukon XL 2500
  • Hummer:
    • H3,
    • H3T
  • Pontiac:
    • G8
  • 29 more
MSRP $14.28
$7.71
MSRP $14.28
$7.71
Spark Plug
Part Number: 12681656
Replaces: 55576026, 55585517
Description: 1.4L turbo. Without high output. 1.8L. More Info
Fits:
  • Buick:
    • Encore
  • Chevrolet:
    • Cruze,
    • Cruze Limited,
    • Sonic,
    • Trax
MSRP $14.28
$7.71
MSRP $14.28
$7.71
Spark Plug
Part Number: 12681657
Replaces: 12611882
Fits:
  • Buick:
    • Enclave
  • GMC:
    • Acadia
  • Saturn:
    • Outlook
MSRP $14.28
$7.71
MSRP $14.28
$7.71
Spark Plug
Part Number: 12681663
Replaces: 12625058
Fits:
  • Buick:
    • Rainier
  • Chevrolet:
    • Cavalier,
    • Classic,
    • Cobalt,
    • Colorado,
    • HHR,
    • Malibu,
    • Trailblazer,
    • Trailblazer EXT
  • GMC:
    • Canyon,
    • Envoy,
    • Envoy XL,
    • Envoy XUV
  • Hummer:
    • H3,
    • H3T
  • Oldsmobile:
    • Alero,
    • Bravada
  • Pontiac:
    • G5,
    • G6,
    • Grand Am,
    • Solstice,
    • Sunfire
  • Saturn:
    • Aura,
    • Ion,
    • L100,
    • L200,
    • L300,
    • LW200,
    • Sky,
    • Vue
  • 25 more
MSRP $14.28
$7.71
MSRP $14.28
$7.71
Spark Plug
Part Number: 25186682
Description: 2009-11. More Info
Fits:
  • Chevrolet:
    • Aveo,
    • Aveo5
  • Pontiac:
    • G3
MSRP $11.60
$6.26
MSRP $11.60
$6.26
Spark Plug
Part Number: 25190786
Replaces: 25181358
Fits:
  • Chevrolet:
    • Spark,
    • Spark EV
MSRP $14.28
$7.71
MSRP $14.28
$7.71
Spark Plug
Part Number: 55504354
Other Names: F (S)Spark Plug More Names
Description: 2.0l. More Info
Fits:
  • Cadillac:
    • CT4,
    • CT5,
    • CT6,
    • XT4,
    • XT5
  • Chevrolet:
    • Blazer
  • GMC:
    • Acadia
  • 2 more
MSRP $15.92
$8.60
MSRP $15.92
$8.60
Spark Plug
Part Number: 19185432
Other Names: F (S)Spark Plug More Names
Description: 2.4L. 1.8l with ho. More Info
Fits:
  • Pontiac:
    • Vibe
MSRP $14.28
$7.71
MSRP $14.28
$7.71
Spark Plug
Part Number: 19208535
Fits:
  • Cadillac:
    • Allante,
    • DeVille,
    • Eldorado,
    • Seville
  • Oldsmobile:
    • Aurora
MSRP $11.02
$5.95
MSRP $11.02
$5.95
Spark Plug
Part Number: 19300749
Replaces: 19157986
Fits:
  • Buick:
    • Century,
    • Electra,
    • LeSabre,
    • Riviera,
    • Skylark,
    • Somerset,
    • Somerset Regal
  • Oldsmobile:
    • 98,
    • Calais,
    • Cutlass Calais,
    • Cutlass Ciera,
    • Cutlass Cruiser,
    • Delta 88,
    • Toronado
  • Pontiac:
    • Bonneville,
    • Grand Am
  • 11 more
MSRP $3.60
$1.94
MSRP $3.60
$1.94
Spark Plug
Part Number: 19302733
Description: Standard. Vendor:acdelco. Vendor #R42XLS. More Info
Fits:
  • Buick:
    • Skyhawk
  • Chevrolet:
    • Metro,
    • Sprint,
    • Tracker
  • Pontiac:
    • Grand Am,
    • J2000 Sunbird,
    • Sunbird
  • 2 more
MSRP $3.36
$1.81
MSRP $3.36
$1.81
Spark Plug
Part Number: 19302741
Description: Optional. Vendor:acdelco. Vendor #cr43tsm. Standard. More Info
Fits:
  • Buick:
    • Commercial Chassis,
    • Roadmaster
  • Cadillac:
    • Brougham
  • Chevrolet:
    • Astro,
    • Blazer,
    • C1500,
    • C2500,
    • C3500,
    • Caprice,
    • G10,
    • G20,
    • G30,
    • K1500 Pickup,
    • K2500 Pickup,
    • K3500 Pickup,
    • P20,
    • P30,
    • R20,
    • R2500,
    • R30,
    • R3500,
    • S10,
    • S10 Blazer,
    • Suburban C1500,
    • Suburban C2500,
    • Suburban K1500,
    • Suburban K2500,
    • Suburban R10,
    • Suburban R1500,
    • Suburban R20,
    • Suburban R2500,
    • Suburban V10,
    • Suburban V1500,
    • Suburban V20,
    • Suburban V2500,
    • Tahoe,
    • V30,
    • V3500
  • GMC:
    • C1500 Pickup,
    • C2500 Pickup,
    • C3500 Pickup,
    • G1500,
    • G2500,
    • G3500,
    • Jimmy,
    • Jimmy S15,
    • K1500 Pickup,
    • K2500 Pickup,
    • K3500 Pickup,
    • P2500,
    • P3500,
    • R2500 Pickup,
    • R3500 Pickup,
    • S15,
    • Safari,
    • Sonoma,
    • Suburban C1500,
    • Suburban C2500,
    • Suburban K1500,
    • Suburban K2500,
    • Suburban R1500,
    • Suburban R2500,
    • V1500 Suburban,
    • V2500 Suburban,
    • V3500,
    • Yukon
  • Oldsmobile:
    • Bravada,
    • Custom Cruiser
  • 63 more
MSRP $3.60
$1.94
MSRP $3.60
$1.94
Spark Plug
Part Number: 19354415
Replaces: 19302744, 5613957
Description: Exc.Police. Exc.Taxi. Standard. Vendor:acdelco. Vendor #CR43TS. Optional. Vendor #R45TS. More Info
MSRP $3.60
$1.94
MSRP $3.60
$1.94
Spark Plug
Part Number: 19307138
Description: Rapid Fire. Vendor:acdelco. Vendor #CR43TS. Police. Taxi. More Info
Fits:
  • Chevrolet:
    • Caprice
MSRP $6.62
$3.57
MSRP $6.62
$3.57

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