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Spark Plugs

A bad spark plug can reduce your gas mileage, cause your engine to backfire, and even damage key engine components. Replace it immediately to keep your vehicle in top condition. Browse our wide selection of replacement spark plugs at unbeatable prices here at CarParts.com. All our products are made by the most trusted brands in the industry. Check out our spark plugs today to find the perfect part for your vehicle.
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Platinum Series Spark Plug, Sold individually
Autolite®
Platinum Series Spark Plug, Sold individually
Part Number: ALTAP5325
Guaranteed to Fit
$9.49
Vehicle Fitment
  • 2017 Porsche 911 Turbo 6 Cyl 3.8L .032"/0.8mm
  • 2017 Porsche 911 Turbo S 6 Cyl 3.8L .032"/0.8mm
Product Details
Notes : 4000 82 Resistance; 5/8 in. Hex Size; (1) Ground Electrode Quantity; Standard Center Electrode Design; Mid Projection Tip Configuration; Stud Electrical Terminal Type; Nickel Ground Electrode Core Material; Tapered Ground Electrode Tip Design; Nickel Ground Electrode Tip Material; Ceramic Insulator Material; Flat Seat TypeSeries : Platinum SeriesElectrode Tip Material : Platinum Electrode TipQuantity Sold : Sold individuallyWarranty : 4-year Autolite limited warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Electrode Core Material : Copper Electrode CoreReach : 1 in. ReachGap Size : 0.04 in.Thread Size : 14 mm
Iridium Power Series Spark Plug, Sold individually
Denso®
Iridium Power Series Spark Plug, Sold individually
Part Number: NP5344
Guaranteed to Fit
$15.49
Vehicle Fitment
  • 2017 Porsche 911 Turbo 6 Cyl 3.8L
  • 2017 Porsche 911 Turbo S 6 Cyl 3.8L
Product Details
Notes : 5/8 in. hex size; Removable nut terminal type; Gasket seat style; ISO overall height; Machine rolled threads; 0.4 mm center electrode; Iridium power electrode configurationSeries : Iridium Power SeriesSpark Plug Code : IFR6D10Replaces OE Number : IKH20Quantity Sold : Sold individuallyWarranty : 1-year Denso limited WarrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Electrode Core Material : Copper Electrode CoreReach : 26.5 mm ReachGap Size : 1.1 mmHeat Range : 20Thread Size : 14 mm thread size
Iridium Power Series Spark Plug, Set of 6
Denso®
Iridium Power Series Spark Plug, Set of 6
Part Number: SET-NP5344-6
Guaranteed to Fit
$48.49
Vehicle Fitment
  • 2017 Porsche 911 Turbo S 6 Cyl 3.8L
  • 2017 Porsche 911 Turbo 6 Cyl 3.8L
Product Details
Series : Iridium Power SeriesSpark Plug Code : IFR6D10Quantity Sold : Set of 6Warranty : 1-year Denso limited WarrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Electrode Core Material : Copper Electrode CoreReach : 26.5 mm ReachGap Size : 1.1 mmHeat Range : 20Thread Size : 14 mm thread size
Spark Plug, Sold individually
Bosch®
Spark Plug, Sold individually
Part Number: BS99917023690
Guaranteed to Fit
$17.49
Vehicle Fitment
  • 2017 Porsche 911 Turbo 6 Cyl 3.8L Bosch FR6 NPP 332
  • 2017 Porsche 911 Turbo S 6 Cyl 3.8L Bosch FR6 NPP 332
Product Details
Quantity Sold : Sold individuallyWarranty : 1-year Bosch limited warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Promotions : European Vehicle Parts
Double Platinum Power Series Spark Plug, Sold individually
Champion®
Double Platinum Power Series Spark Plug, Sold individually
Part Number: C337428
Guaranteed to Fit
$14.49
Vehicle Fitment
  • 2017 Porsche 911 GT3 RS 6 Cyl 4.0L Plug Type Rerx5Pmpb
Product Details
Series : Double Platinum Power SeriesQuantity Sold : Sold individuallyWarranty : 5-year, unlimited-mileage or recommended change interval Champion limited warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Reach : 1.04 in. ReachGap Size : 0.03 in.Heat Range : 5Recommended Use : OE ReplacementProduct Fit : Direct Fit
Spark Plug
Champion®
Spark Plug
Part Number: C333455
Guaranteed to Fit
$11.49
Vehicle Fitment
  • 2017 Porsche 911 GT3 RS 6 Cyl 4.0L Plug Type Rerx6Pmcb4
Product Details
Warranty : 24-month or 24,000-mile limited warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Recommended Use : OE ReplacementProduct Fit : Direct Fit
Spark Plug
Champion®
Spark Plug
Part Number: C339425
Guaranteed to Fit
$20.99
Vehicle Fitment
  • 2017 Porsche 911 Carrera 6 Cyl 3.0L With Cup Terminal; Plug Type Rerx4Zwypb
  • 2017 Porsche 911 Carrera 4S 6 Cyl 3.0L With Cup Terminal; Plug Type Rerx4Zwypb
  • 2017 Porsche 911 Carrera S 6 Cyl 3.0L With Cup Terminal; Plug Type Rerx4Zwypb
  • 2017 Porsche 911 Targa 4S 6 Cyl 3.0L With Cup Terminal; Plug Type Rerx4Zwypb
  • 2017 Porsche 911 Carrera 4 6 Cyl 3.0L With Cup Terminal; Plug Type Rerx4Zwypb
  • 2017 Porsche 911 Targa 4 6 Cyl 3.0L With Cup Terminal; Plug Type Rerx4Zwypb
Product Details
Warranty : 24-month or 24,000-mile limited warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Recommended Use : OE ReplacementProduct Fit : Direct Fit
OE Fine Wire Double Platinum Spark Plug Series Spark Plug, Sold individually
Bosch®
OE Fine Wire Double Platinum Spark Plug Series Spark Plug, Sold individually
Part Number: BS8124
Guaranteed to Fit
$20.49
Vehicle Fitment
  • 2017 Porsche 911 Targa 4 6 Cyl 3.0L Do Not Gap, Gap is Preset
  • 2017 Porsche 911 Carrera S 6 Cyl 3.0L Do Not Gap, Gap is Preset
  • 2017 Porsche 911 Carrera 4 6 Cyl 3.0L Do Not Gap, Gap is Preset
  • 2017 Porsche 911 Carrera 4S 6 Cyl 3.0L Do Not Gap, Gap is Preset
  • 2017 Porsche 911 Carrera 6 Cyl 3.0L Do Not Gap, Gap is Preset
  • 2017 Porsche 911 Targa 4S 6 Cyl 3.0L Do Not Gap, Gap is Preset
Product Details
Notes : (1) Ground Electrode; 14 mm Hex Size; 8000 Ohms Resistance; 4-Cycle Spark Plug Type; Nickel-Yttrium and Copper and Platinum Ground Electrode Tip; Standard Ground Configuration; Standard Ground Electrode Tip; Non-Projected Ceramic Insulator; Flat Seat Type; With ResistorSeries : OE Fine Wire Double Platinum Spark Plug SeriesElectrode Tip Material : Platinum Electrode TipQuantity Sold : Sold individuallyWarranty : 1-year Bosch limited warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Promotions : European Vehicle PartsElectrode Core Material : Nickel-Yttrium, Copper, and Platinum Electrode CoreReach : 26.5 mm ReachGap Size : 0.7 mmRecommended Use : OE ReplacementProduct Fit : Direct FitHeat Range : 5Thread Size : 12 mm
Iridium XP Series Spark Plug, Sold individually
Autolite®
Iridium XP Series Spark Plug, Sold individually
Part Number: ALTXP5325
Guaranteed to Fit
$14.99
Vehicle Fitment
  • 2017 Porsche 911 Turbo 6 Cyl 3.8L .032"/0.8mm
  • 2017 Porsche 911 Turbo S 6 Cyl 3.8L .032"/0.8mm
Product Details
Notes : 4000 82 Resistance; 5/8 in. Hex Size; (1) Ground Electrode Quantity; Fine Wire Center Electrode Design; Mid Projection Tip Configuration; Stud Electrical Terminal Type; Nickel Ground Electrode Core Material; Tapered Ground Electrode Tip Design; Platinum Ground Electrode Tip Material; Ceramic Insulator Material; Flat Seat TypeSeries : Iridium XP SeriesElectrode Tip Material : Iridium Electrode TipQuantity Sold : Sold individuallyWarranty : Lifetime Autolite limited warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Electrode Core Material : Copper Electrode CoreReach : 1 in. ReachGap Size : 0.04 in.Thread Size : 14 mm
Iridium TT Series Spark Plug, Sold individually
Denso®
Iridium TT Series Spark Plug, Sold individually
Part Number: NP4704
Guaranteed to Fit
$17.49
Vehicle Fitment
  • 2017 Porsche 911 Carrera 6 Cyl 3.0L Gap 0.040
  • 2017 Porsche 911 Carrera 4 6 Cyl 3.0L Gap 0.040
  • 2017 Porsche 911 Targa 4 6 Cyl 3.0L Gap 0.040
  • 2017 Porsche 911 Carrera 4S 6 Cyl 3.0L Gap 0.040
  • 2017 Porsche 911 Targa 4S 6 Cyl 3.0L Gap 0.040
  • 2017 Porsche 911 Turbo 6 Cyl 3.8L Gap 0.040
  • 2017 Porsche 911 Carrera S 6 Cyl 3.0L Gap 0.040
  • 2017 Porsche 911 GT3 RS 6 Cyl 4.0L Gap 0.040
  • 2017 Porsche 911 Turbo S 6 Cyl 3.8L Gap 0.040
Product Details
Notes : 16 mm Hex Size; (1) Ground Electrode; Flat Seat Type; Platinum Twin-Tip Ground Electrode Tip Design; Twin-Tip ConfigurationSeries : Iridium TT SeriesElectrode Tip Material : Iridium-Rhodium Alloy Electrode TipReplaces OE Number : 31286359, 31312691, 31293000Quantity Sold : Sold individuallyWarranty : 1-year or 12,000-mile Denso limited warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Electrode Core Material : Nickel Copper Alloy Electrode CoreReach : 1.04 in. ReachGap Size : 0.04 in.Recommended Use : OE ReplacementProduct Fit : Direct FitInterchange Part Number : 31286359, 31312691, 31293000Heat Range : 20Thread Size : 0.55 in.
Iridium TT Series Spark Plug, Set of 6
Denso®
Iridium TT Series Spark Plug, Set of 6
Part Number: SET-NP4704-6
Guaranteed to Fit
$56.99
Vehicle Fitment
  • 2017 Porsche 911 Turbo S 6 Cyl 3.8L
  • 2017 Porsche 911 Turbo 6 Cyl 3.8L
Product Details
Components : (6) Spark PlugSeries : Iridium TT SeriesElectrode Tip Material : Iridium-Rhodium Alloy Electrode TipReplaces OE Number : 31286359, 31312691, 31293000Quantity Sold : Set of 6Warranty : 1-year or 12,000-mile Denso limited warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Electrode Core Material : Nickel Copper Alloy Electrode CoreReach : 1.04 in. ReachGap Size : 0.04 in.Recommended Use : OE ReplacementProduct Fit : Direct FitInterchange Part Number : 31286359, 31312691, 31293000Heat Range : 20Thread Size : 0.55 in.
Iridium Long Life Series Spark Plug, Sold individually
Denso®
Iridium Long Life Series Spark Plug, Sold individually
Part Number: NP3421
Guaranteed to Fit
$16.49
Vehicle Fitment
  • 2017 Porsche 911 Turbo S 6 Cyl 3.8L
  • 2017 Porsche 911 Turbo 6 Cyl 3.8L
Product Details
Notes : 5/8 in. hex size; Non-projected tip; Solid terminal type; Gasket seat style; ISO overall height; Machine rolled threads; Iridium long life electrode configurationSeries : Iridium Long Life SeriesSpark Plug Code : SK20HR11Electrode Tip Material : Iridium Electrode TipQuantity Sold : Sold individuallyWarranty : 1-year Denso limited WarrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Electrode Core Material : Copper Electrode CoreReach : 26.5 mm ReachGap Size : 1.1 mmHeat Range : 20Thread Size : 14 mm thread size
Iridium Long Life Series Spark Plug, Set of 6
Denso®
Iridium Long Life Series Spark Plug, Set of 6
Part Number: SET-NP3421-6
Guaranteed to Fit
$55.99
Vehicle Fitment
  • 2017 Porsche 911 Turbo S 6 Cyl 3.8L
  • 2017 Porsche 911 Turbo 6 Cyl 3.8L
Product Details
Series : Iridium Long Life SeriesSpark Plug Code : SK20HR11Electrode Tip Material : Iridium Electrode TipQuantity Sold : Set of 6Warranty : 1-year Denso limited WarrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Electrode Core Material : Copper Electrode CoreReach : 26.5 mm ReachGap Size : 1.1 mmHeat Range : 20Thread Size : 14 mm thread size
Iridium XP Series Spark Plug, Set of 6
Autolite®
Iridium XP Series Spark Plug, Set of 6
Part Number: SET-ALTXP5325-6
Guaranteed to Fit
$42.49
Vehicle Fitment
  • 2017 Porsche 911 Turbo 6 Cyl 3.8L .032"/0.8mm
  • 2017 Porsche 911 Turbo S 6 Cyl 3.8L .032"/0.8mm
Product Details
Notes : 4000 82 Resistance; 5/8 in. Hex Size; (1) Ground Electrode Quantity; Fine Wire Center Electrode Design; Mid Projection Tip Configuration; Stud Electrical Terminal Type; Nickel Ground Electrode Core Material; Tapered Ground Electrode Tip Design; Platinum Ground Electrode Tip Material; Ceramic Insulator Material; Flat Seat TypeComponents : (6) Spark PlugSeries : Iridium XP SeriesElectrode Tip Material : Iridium Electrode TipQuantity Sold : Set of 6Warranty : Lifetime Autolite limited warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Electrode Core Material : Copper Electrode CoreReach : 1 in. ReachGap Size : 0.04 in.Recommended Use : OE ReplacementProduct Fit : Direct FitThread Size : 14 mm
OE Fine Wire Double Platinum Spark Plug Series Spark Plug, Set of 6
Bosch®
OE Fine Wire Double Platinum Spark Plug Series Spark Plug, Set of 6
Part Number: SET-BS8124-6
Guaranteed to Fit
$80.49
Vehicle Fitment
  • 2017 Porsche 911 Targa 4 6 Cyl 3.0L Do Not Gap, Gap is Preset
  • 2017 Porsche 911 Carrera S 6 Cyl 3.0L Do Not Gap, Gap is Preset
  • 2017 Porsche 911 Carrera 4 6 Cyl 3.0L Do Not Gap, Gap is Preset
  • 2017 Porsche 911 Carrera 4S 6 Cyl 3.0L Do Not Gap, Gap is Preset
  • 2017 Porsche 911 Carrera 6 Cyl 3.0L Do Not Gap, Gap is Preset
  • 2017 Porsche 911 Targa 4S 6 Cyl 3.0L Do Not Gap, Gap is Preset
Product Details
Notes : (1) Ground Electrode; 14 mm Hex Size; 8000 Ohms Resistance; 4-Cycle Spark Plug Type; Nickel-Yttrium and Copper and Platinum Ground Electrode Tip; Standard Ground Configuration; Standard Ground Electrode Tip; Non-Projected Ceramic Insulator; Flat Seat Type; With ResistorComponents : (6) Spark PlugSeries : OE Fine Wire Double Platinum Spark Plug SeriesElectrode Tip Material : Platinum Electrode TipQuantity Sold : Set of 6Warranty : 1-year Bosch limited warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Promotions : European Vehicle PartsElectrode Core Material : Nickel-Yttrium, Copper, and Platinum Electrode CoreReach : 26.5 mm ReachGap Size : 0.7 mmRecommended Use : OE ReplacementProduct Fit : Direct FitHeat Range : 5Thread Size : 12 mm
Page 1 of 2 | Showing 1 - 15 of 17 results

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Product Questions & Answers

Autolite Iridium XP Series Spark Plug, Set of 6
$42.49
Q:When will the Autolite® 2017 Toyota Highlander - Iridium XP Series Spark Plug, Set of 6 Manufacturer #SET-ALTXP5325-6 be back in stock? Show Less
Mike
A:BEST ANSWERHi Mike, thank you for reaching out. We don't have a set date. Please click the "Notify me when available" button and enter your email address to be notified when this item will be available. Thank you for inquiring. Have a nice day. Show less
Aldrin P.
 
1 Question, 1 AnswerView all Q&As >

Shopping for Spark Plug

Spark Plug Shopping Info

What Is a Spark Plug?

Spark plugs are some of the most important parts of any vehicle — you can’t even start your car without them. The spark plug is responsible for creating the initial spark, very similar to a controlled bolt of lightning, that is necessary to start the combustion process.

How Much Does a Spark Plug Replacement Cost?

Aftermarket spark plugs can cost anywhere between $5 to $100 depending on the quantity of the spark plugs you’re buying and the electrode material. Platinum and iridium-tipped spark plugs usually cost a little more than standard nickel-alloy spark plugs. Labor costs, on the other hand, can range from $40 to $250 depending on your area and the exact make and model of your vehicle.

Shop for Aftermarket Spark Plugs on CarParts.com

For your convenience, look no further than CarParts.com when you’re searching for an aftermarket spark plug for sale. With our wide selection of spark plugs compatible with different makes and models, it’s easy to find the best one for your vehicle right here.

Our spark plug catalog consists of spark plugs in different thread sizes, which come in direct-fit or universal-fit options. We also carry spark plugs with different electrode cores and electrode tips such as nickel alloy, copper alloy, iridium, and platinum. This allows you to buy spark plug replacements that suit your specific application and budget. To make it even more convenient for you, you can buy our spark plugs individually, in pairs, or in sets of four.

We pride ourselves in selling only high-quality spark plugs that were manufactured and tested in outstanding facilities, so you can rest assured that you’re getting reliable, fully functional spark plugs when you shop with us.

Visit CarParts.com today, and get a replacement spark plug or set of spark plugs delivered straight to your doorstep in as fast as two business days.

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Helpful Automotive Resources

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Why Won’t My Car Start?Unfortunately, the answer isn’t always straightforward. You might be surprised to find out how many issues can potentially prevent your car from starting. Common Reasons Why Your Car Might Not Start
P0354 Code: Ignition Coil “D” Primary/Secondary Circuit
P0354 Code: Ignition Coil “D” Primary/Secondary CircuitThere are several types of ignition systems, including a distributor, coil pack, or coil on plug (COP) type systems. Typically, code P0354 is set in a COP system. There are several types of ignition systems, including a distributor, coil pack, or coil on plug (COP) type systems.
P0316 Code: Engine Misfire Detected on Startup (First 1000 Revolutions)
P0316 Code: Engine Misfire Detected on Startup (First 1000 Revolutions)Diagnostic trouble code (DTC) stands for “Engine Misfire Detected on Startup (First 1000 Revolutions).” Basically, if one or more of the engine’s cylinders misfires during the engine’s first 1,000 revolutions, the PCM sets code P0316.