OEM Automotive Spark Plugs
Get the Facts About Spark Plugs
What they do: ignite the mixture of fuel and air in your vehicle's engine.
Why they do this: for combustion -- burning the mix produces the power the engine runs on.
How they work: as part of a process called spark ignition.
How the process goes: the key turns in the ignition lock cylinder, the ignition switch trips, and the car battery, starter motor, starter solenoid, and ignition coil work together to generate electricity. The plugs' leads pick up the charge, combustion occurs, and everything starts running -- the engine pistons, the crankshaft, the alternator, and more.
The symptoms of a bad one: corroded and/or excessively wide leads, wear, breakage, low conductivity, hard starts, and worsening fuel economy. Also, engine misfires, idling roughly, and acceleration problems.
When they should be changed: if you see the signs mentioned above. Alternatively, when you run an engine inspection and its results recommend replacement. Otherwise, before they exceed the mileage limits recommended in your owner's manual. Before ordering new ones, be sure they're genuine.
Why buy genuine OEM spark plugs: your brand designs and builds them to fit your model specifically. That's a fitment guarantee the aftermarket can't always make.
Where to order replacement spark plugs online: from our auto parts store. We carry copper, platinum, and iridium, both regular and extended-life. Just browse our catalog by make, model, and year; it'll make finding what fits go quicker and easier. Buy them now, and we'll ship them out ASAP, directly to your door.
- Volkswagen:
- Cabriolet,
- Jetta,
- Quantum
- Volkswagen:
- Atlas,
- Atlas Cross Sport
- Audi:
- 5000,
- 90
- Audi:
- A3,
- A3 Quattro,
- A4,
- A4 allroad,
- A4 Quattro,
- 8 more
- Audi:
- A3 Quattro,
- Q3,
- TT Quattro
- Audi:
- A7 Sportback,
- Q5,
- Q5 PHEV,
- S3,
- TT Quattro
- Porsche:
- Cayenne,
- Panamera
- Porsche:
- Cayenne
- Porsche:
- Cayenne
- Porsche:
- Macan
- Porsche:
- 944
- Porsche:
- 911
- Porsche:
- Cayenne
- Porsche:
- Cayenne
- Porsche:
- 911
- Volkswagen:
- Phaeton
- Volkswagen:
- Arteon,
- Golf R
- Volkswagen:
- Routan
- Audi:
- Q5
- Audi:
- A6 allroad,
- A6 Quattro,
- A7 Quattro,
- A7 Sportback,
- A8 Quattro,
- 12 more
- Audi:
- A8 Quattro,
- RS7,
- S6,
- S7,
- S8
- Audi:
- RS Q8
- Audi:
- A4,
- A4 Quattro,
- A6 Quattro,
- Allroad Quattro,
- S4,
- 2 more
- Audi:
- A3 Quattro,
- TT Quattro
- Audi:
- A6 Quattro,
- A7 Quattro,
- A8 Quattro,
- Q5,
- Q7,
- 3 more
- Audi:
- A6 Quattro,
- A8 Quattro,
- Allroad Quattro,
- S4,
- S5
- Audi:
- A4,
- A4 Quattro,
- A6,
- A6 Quattro,
- R8,
- 1 more
- Audi:
- A6 Quattro,
- A8 Quattro,
- Q7,
- S5,
- S6,
- 1 more
- Mercedes-Benz:
- C 300,
- CLA 45 AMG®,
- GLA 45 AMG®
- Mercedes-Benz:
- AMG® GT 43,
- AMG® GT 53,
- C 300,
- CLS 450,
- CLS 53 AMG®,
- 7 more
- Mercedes-Benz:
- 300 CE,
- 300 E,
- 300 SE,
- 300 SL,
- 300 TE,
- 24 more
- Mercedes-Benz:
- C 240,
- CL 500,
- CLK 430,
- E 430,
- ML 430,
- 5 more
- Mercedes-Benz:
- C 250,
- SLK 250
- Mercedes-Benz:
- C 300,
- C 350,
- CL 550,
- CL 63 AMG®,
- CLS 550,
- 28 more
- Volkswagen:
- CC,
- Eos,
- GTI,
- Passat,
- Tiguan,
- 1 more
- Volkswagen:
- Golf,
- Golf R
- Porsche:
- 718 Boxster,
- 718 Cayman,
- 911
- Audi:
- TT Quattro,
- TT RS Quattro
- Volkswagen:
- Atlas,
- Atlas Cross Sport,
- GTI,
- Jetta,
- Tiguan
- Volkswagen:
- Routan
- Volkswagen:
- Passat
- Volkswagen:
- Eos,
- R32,
- Touareg
- Volkswagen:
- Jetta,
- Taos
- Volkswagen:
- Beetle,
- CC,
- Eos,
- Golf,
- Golf R,
- 5 more
- Mercedes-Benz:
- C 300,
- C 350e,
- CLA 250,
- CLA 45 AMG®,
- E 300,
- 9 more
- Mercedes-Benz:
- 420 SEL,
- 500 SEC,
- 500 SEL
- Mercedes-Benz:
- C 230,
- S 320
- Mercedes-Benz:
- C 230,
- C 32 AMG®,
- C 55 AMG®,
- CLK 55 AMG®,
- SLK 230,
- 2 more
- Mercedes-Benz:
- CL 600,
- CL 65 AMG®,
- G 65 AMG®,
- Maybach S 600,
- Maybach S 650,
- 5 more
- Mercedes-Benz:
- C 230
- Mercedes-Benz:
- C 230,
- C 250,
- C 280,
- C 300,
- C 350,
- 21 more
- Porsche:
- Cayenne
- Porsche:
- 911
- Porsche:
- 911,
- 924,
- 944
- Audi:
- A3,
- A3 Quattro,
- A4,
- A4 Quattro,
- A5,
- 12 more
- Audi:
- A3,
- A3 Quattro,
- A4,
- A4 Quattro,
- A5,
- 9 more
- Audi:
- A6 Quattro,
- A8 Quattro,
- R8,
- S5,
- S6
- Audi:
- 90 Quattro,
- A4,
- A4 Quattro,
- A6,
- A6 Quattro
- Audi:
- A8 Quattro
- Audi:
- A6
- Porsche:
- 718 Boxster,
- 718 Cayman,
- 718 Spyder
- Volkswagen:
- Golf,
- Golf SportWagen,
- Jetta
- Volkswagen:
- Beetle,
- Golf,
- Golf Alltrack,
- Golf SportWagen,
- GTI,
- 2 more
- Audi:
- TT Quattro
- Audi:
- A3,
- A3 Quattro,
- TT Quattro,
- TTS Quattro
No results found for "spark plugs". Here are some helpful search tips:
- Search by a part name. Example: water pump.
- Be less specific. Example: brake instead of ceramic brake.
- Remove information such as make, year or model.
- Can't find the part you are looking for? Contact us and we'll find it for you!