Spark Plugs

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Spark plugs are key components to your engine's combustion process. They provide the spark to the mixture of fuel and oxygen brought into your engine through the air intake and fuel pump.

How do Spark Plugs Work?

There is one spark plug for every cylinder of your engine. They are made of conductive metals like copper, nickel, or iridium that pull electricity from the battery to create the sparks that ignite the ratio of fuel and oxygen in your engine cylinders. They are capable of withstanding high heat for long periods of time, which is why they are coated in a ceramic shell.

When to Replace Subaru Spark Plugs?

Spark plugs typically last between 80,000 and 120,000 miles before they show signs of replacements. This depends on your Subaru model and conditions you drive in, but there are symptoms that will reveal that your spark plugs require replacement. If your Subaru spark plugs are going bad, look out for:

  • Rough idling engine
  • Car engine will not turn over
  • Engine surges
  • Engine misfires
  • Low acceleration
  • Higher fuel consumption
  • If you encounter any of these symptoms, seek a professional Subaru inspection near you. Once you learn of the types of spark plugs you need, save money by ordering them online with us!

    Choose OEM Subaru Spark Plugs Online for a Reliable Replacement

    Keep your engine functioning properly with brand new spark plugs for Subaru. We have the ideal fitted engine parts for your year and model inside our online Subaru catalog. All you must do is click your way to your vehicle type and find the right spark plugs that fit your engine. Save some cash too with our low-priced Subaru parts online and get your order soon with our nationwide delivery. Have questions about your order? Let's talk. Reach out to our experts on our contact page.

    Spark Plug
    Part Number: 22401AA310
    Replaces: 22401AA450, 22401AA540, 22401AA550, 22401KA210
    Description: Vendor:champion. Vendor #RC7YC4. Vendor:NGK. Vendor #BKR6E-11. 2.5L, 2003-04. Exc.Calif. More Info
    MSRP $4.65
    $3.60
    MSRP $4.65
    $3.60
    Spark Plug
    Part Number: 22401AA580
    MSRP $14.95
    $11.57
    MSRP $14.95
    $11.57
    Spark Plug
    Part Number: 22401AA65A
    Other Names: Plug Spark More Names
    Replaces: 22401AA650
    Description: 2.5L, 2005-08. Without turbo, 2009-10. Calif. Vendor:NGK. Vendor #FR5AP-11. More Info
    MSRP $13.75
    $10.64
    MSRP $13.75
    $10.64
    Spark Plug
    Part Number: 22401AA830
    Description: 2.0L. More Info
    MSRP $27.08
    $18.69
    MSRP $27.08
    $18.69
    Spark Plug
    Part Number: 22401AA370
    Other Names: Spark Plug Platinum More Names
    Description: Vendor:NGK. Vendor #PFR6B-11. More Info
    MSRP $13.25
    $10.26
    MSRP $13.25
    $10.26
    Spark Plug
    Part Number: 22401AA630
    Description: 2.5L turbo. 3.0L. More Info
    MSRP $19.58
    $15.16
    MSRP $19.58
    $15.16
    Spark Plug
    Part Number: 22401AA751
    Replaces: 22401AA750
    Description: 3.6L. More Info
    MSRP $19.00
    $14.71
    MSRP $19.00
    $14.71
    Spark Plug
    Part Number: 22401AA801
    Replaces: 22401AA800
    MSRP $27.50
    $18.98
    MSRP $27.50
    $18.98
    Spark Plug
    Part Number: 22401AA820
    Description: With hybrid. More Info
    MSRP $26.95
    $18.60
    MSRP $26.95
    $18.60
    Spark Plug
    Part Number: 22401AA910
    Description: ILFR7H.\ Spark Plug\ \ Fits STI, WRX 2.5L, w/o Type ra. More Info
    MSRP $22.92
    $15.81
    MSRP $22.92
    $15.81
    Spark Plug
    Part Number: 22401AA92A
    Other Names: Spark Plug SILKFR8A6 More Names
    Replaces: 22401AA920
    Description: 2.4L turbo. More Info
    MSRP $29.98
    $20.69
    MSRP $29.98
    $20.69
    Spark Plug
    Part Number: 22401AA95A
    Other Names: Plug Spark More Names
    Description: 2.5L. More Info
    MSRP $26.62
    $18.37
    MSRP $26.62
    $18.37
    Spark Plug
    Part Number: 22401AA731
    Replaces: 22401AA730
    Description: 2.5L without turbo. More Info
    MSRP $19.00
    $14.71
    MSRP $19.00
    $14.71
    Spark Plug
    Part Number: 22401AA880
    Replaces: 22401AA89A
    Description: Quantity RequiRed: 4.\ DILKAR7B8.\ Spark Plug\ \ Fits Crosstrek, Impreza 2.0L. More Info
    MSRP $29.98
    $20.69
    MSRP $29.98
    $20.69
    Spark Plug
    Part Number: 22401AA940
    Description: 2.0L hybrid. 2.5L. More Info
    MSRP $26.95
    $18.60
    MSRP $26.95
    $18.60
    Spark Plug
    Part Number: 22401AA530
    Replaces: 22401AA531
    Description: 2.0L. More Info
    MSRP $13.25
    $10.26
    MSRP $13.25
    $10.26
    Spark Plug
    Part Number: 22401AA570
    Other Names: Spark Plug 2.5L Platinum More Names
    Description: Vendor:NGK. Vendor #PFR5B-11. More Info
    MSRP $13.25
    $10.26
    MSRP $13.25
    $10.26
    Spark Plug
    Part Number: 22401AA670
    Description: 2.5L turbo. 2.5L, without type ra. Vendor:NGK. Vendor #silfr6a. More Info
    MSRP $19.58
    $15.16
    MSRP $19.58
    $15.16
    Spark Plug
    Part Number: 22401AA761
    Replaces: 22401AA760
    Description: 2.5L with turbo. More Info
    MSRP $19.00
    $14.71
    MSRP $19.00
    $14.71
    Spark Plug
    Part Number: 22401AA781
    Replaces: 22401AA780
    Description: Without turbo, 2011-13. 2.5L without turbo. Without hybrid. More Info
    MSRP $26.10
    $18.01
    MSRP $26.10
    $18.01
    Spark Plug Wire
    Part Number: 22451AA72A
    Other Names: Cable, Cable CP Ht More Names
    Description: Legacy. 2.5l. #1. Outback. 2.5l. #1. Baja. Without turbo. #1. Cylinder 1. More Info
    MSRP $17.43
    $13.49
    MSRP $17.43
    $13.49
    Spark Plug Wire
    Part Number: 22451AA81A
    Other Names: Cable, Cable CP Ht More Names
    Replaces: 22448AA00A
    Description: Legacy. 2.5l. #2. Outback. 2.5l. #2. Baja. Without turbo. #2. Cylinder 2,4. More Info
    MSRP $17.43
    $13.49
    MSRP $17.43
    $13.49
    Cable
    Part Number: 22451KA181
    Other Names: Spark Plug Cord More Names
    Replaces: 22451KA180
    Description: Justy. With fuel injection. #1. More Info
    MSRP $15.27
    $11.82
    MSRP $15.27
    $11.82
    Spark Plug Wire
    Part Number: 22452AA670
    Other Names: Cable, Spark Plug Cord More Names
    Description: Legacy. 2.5l. #4. From 05/1997. Cylinder 4. More Info
    MSRP $21.82
    $15.05
    MSRP $21.82
    $15.05
    Cable
    Part Number: 22453KA110
    Other Names: Spark Plug Cord More Names
    Replaces: 22453KA111
    Description: Justy. With fuel injection. #3. More Info
    MSRP $15.27
    $11.82
    MSRP $15.27
    $11.82
    Cable
    Part Number: 22451AA241
    Other Names: Spark Plug Cord More Names
    Replaces: 22451AA240
    Description: Legacy. 2.2l. #1. More Info
    MSRP $19.63
    $15.20
    MSRP $19.63
    $15.20
    Cable
    Part Number: 22451AA261
    Other Names: Spark Plug Cord More Names
    Replaces: 22451AA260
    Description: Legacy. 2.2l. #3. More Info
    MSRP $19.63
    $15.20
    MSRP $19.63
    $15.20
    Spark Plug Wire
    Part Number: 22452KA131
    Other Names: Cable, Spark Plug Cord More Names
    Replaces: 22452KA070, 22452KA130
    Description: Justy. Without fuel injection. #2. Cylinder 2. More Info
    MSRP $15.27
    $11.82
    MSRP $15.27
    $11.82
    Cable
    Part Number: 22452KA191
    Other Names: Spark Plug Cord More Names
    Replaces: 22452KA190
    Description: Justy. With fuel injection. #2. More Info
    MSRP $15.27
    $11.82
    MSRP $15.27
    $11.82
    Spark Plug Wire
    Part Number: 22454AA130
    Other Names: Cable, Spark Plug Cord More Names
    Description: To 04/1997. Cylinder 4. Forester. #4. Impreza. 2.5l. #4. More Info
    MSRP $24.03
    $16.58
    MSRP $24.03
    $16.58
    Spark Plug
    Part Number: 22401AA120
    Replaces: 22401AA130, 420545702, 420547700, SOA528000
    Description: Vendor:NGK. Vendor #bpr6es-11. To 06/1990. More Info
    MSRP $4.55
    $3.52
    MSRP $4.55
    $3.52
    Cable
    Part Number: 22451AA251
    Other Names: Spark Plug Cord More Names
    Replaces: 22451AA250
    Description: Legacy. 2.2l. #2. More Info
    MSRP $19.63
    $15.20
    MSRP $19.63
    $15.20
    Cable
    Part Number: 22451AA410
    Other Names: Spark Plug Cord More Names
    Replaces: 22451AA390
    Description: Legacy. 2.2l. #2. More Info
    MSRP $19.63
    $15.20
    MSRP $19.63
    $15.20
    Spark Plug Wire
    Part Number: 22451AA640
    Other Names: Cable CP Ht More Names
    Replaces: 22451AA481
    Description: Japan Built. Cylinder 1,3. Boot Color-Black. More Info
    MSRP $19.63
    $15.20
    MSRP $19.63
    $15.20
    Spark Plug Wire
    Part Number: 22451AA730
    Other Names: Plug Wire, Cable, Spark Plug Cord More Names
    Description: Forester. #2. Legacy. All. #2. Cylinder 2. More Info
    MSRP $32.22
    $22.23
    MSRP $32.22
    $22.23
    Spark Plug Wire
    Part Number: 22451AA750
    Other Names: Cable, Spark Plug Cord More Names
    Replaces: 22451AA760
    Description: Legacy. 2.5l. #3. From 05/1997. Cylinder 1,3. More Info
    MSRP $21.82
    $15.05
    MSRP $21.82
    $15.05
    Spark Plug Wire
    Part Number: 22451AA92A
    Other Names: Cable, Cable CP Ht More Names
    Description: Legacy/Outback. 2.5l. #1. Calif. Cylinder 1. Cylinder 3. More Info
    MSRP $17.43
    $13.49
    MSRP $17.43
    $13.49
    Spark Plug Wire
    Part Number: 22451AA93A
    Other Names: Cable, Cable CP Ht More Names
    Description: Legacy/Outback. 2.5l. #4. Calif. Cylinder 4. Cylinder 2. More Info
    MSRP $17.43
    $13.49
    MSRP $17.43
    $13.49
    Spark Plug Wire
    Part Number: 22451AA040
    Other Names: Cable, Spark Plug Cord More Names
    Description: Cylinder 2. Loyale. #2. More Info
    MSRP $15.27
    $11.82
    MSRP $15.27
    $11.82
    Spark Plug Wire
    Part Number: 22451AA060
    Other Names: Cable, Spark Plug Cord More Names
    Description: Cylinder 4. Loyale. #4. More Info
    MSRP $15.27
    $11.82
    MSRP $15.27
    $11.82
    Cable
    Part Number: 22451AA420
    Other Names: Spark Plug Cord More Names
    Replaces: 22451AA400
    Description: Legacy. 2.2l. #4. More Info
    MSRP $19.63
    $15.20
    MSRP $19.63
    $15.20
    Cable
    Part Number: 22451AA630
    Other Names: Spark Plug Cord More Names
    Replaces: 22452AA112
    Description: Impreza. 1.8l. #2, #4. More Info
    MSRP $21.82
    $15.05
    MSRP $21.82
    $15.05
    Spark Plug Wire
    Part Number: 22451AA73A
    Other Names: Cable CP Ht More Names
    Description: Cylinder 2. More Info
    MSRP $17.43
    $13.49
    MSRP $17.43
    $13.49
    Spark Plug Wire
    Part Number: 22451AA80A
    Other Names: Cable, Cable CP Ht More Names
    Description: Legacy. 2.5l. #3. Outback. 2.5l. #3. Baja. Without turbo. #3. Cylinder 3. More Info
    MSRP $17.43
    $13.49
    MSRP $17.43
    $13.49
    Spark Plug Wire
    Part Number: 22452AA660
    Other Names: Cable, Spark Plug Cord More Names
    Description: Legacy. 2.5l. #2. From 05/1997. Cylinder 2. More Info
    MSRP $21.82
    $15.05
    MSRP $21.82
    $15.05
    Spark Plug Tube Seal
    Part Number: 10966AA030
    Other Names: Gasket Spark Plug Pipe More Names
    Replaces: 10966AA000, 10966AA020
    MSRP $5.33
    $4.13
    MSRP $5.33
    $4.13
    Spark Plug Tube Seal
    Part Number: 10966AA041
    Other Names: Gasket Spark Plug Pipe More Names
    Replaces: 10966AA040
    MSRP $3.20
    $2.48
    MSRP $3.20
    $2.48
    Cable
    Part Number: 22454AA120
    Other Names: Spark Plug Cord More Names
    Description: Legacy. 2.5l. #4. More Info
    MSRP $21.82
    $15.05
    MSRP $21.82
    $15.05
    Cable
    Part Number: 22451AA270
    Other Names: Spark Plug Cord More Names
    Description: Legacy. 2.2l. #4. More Info
    MSRP $19.63
    $15.20
    MSRP $19.63
    $15.20
    Cable
    Part Number: 22451AA543
    Options: Front
    Other Names: Spark Plug Cord More Names
    Description: Legacy. 2.5l. Front. More Info
    MSRP $19.63
    $15.20
    MSRP $19.63
    $15.20
    Cable
    Part Number: 22452AA150
    Options: Rear
    Other Names: Spark Plug Cord More Names
    Description: Legacy. 2.5l. Rear. More Info
    MSRP $19.63
    $15.20
    MSRP $19.63
    $15.20
    Cable
    Part Number: 22451AA120
    Other Names: Spark Plug Cord More Names
    Description: Loyale. #1. More Info
    MSRP $15.27
    $11.82
    MSRP $15.27
    $11.82
    Cable
    Part Number: 22451AA580
    Other Names: Spark Plug Cord More Names
    Description: Legacy. 2.5l. #3. Forester. #1. Impreza. 2.5l. #1. More Info
    MSRP $21.82
    $15.05
    MSRP $21.82
    $15.05
    Cable
    Part Number: 22451AA620
    Other Names: Spark Plug Cord More Names
    Description: Legacy. 2.5l. #1. Forester. #2. Impreza. 2.5l. #2, #3. More Info
    MSRP $24.03
    $16.58
    MSRP $24.03
    $16.58
    Plug Wire
    Part Number: 22451AA810
    Other Names: Cable, Spark Plug Cord More Names
    Description: Impreza. Forester. #4. Legacy. 2.5L, #2 cylinder. 2.5L, 2003-04, #2. More Info
    MSRP $21.10
    $14.56
    MSRP $21.10
    $14.56
    Plug Wire
    Part Number: 22451AA800
    Other Names: Cable, Spark Plug Cord More Names
    Description: Impreza. Forester. #3. Legacy. 2.5L, #3 cylinder. 2.5L, 2003-04, #3. More Info
    MSRP $21.10
    $14.56
    MSRP $21.10
    $14.56
    Plug Wire
    Part Number: 22451AA720
    Other Names: Cable, Spark Plug Cord More Names
    Description: Impreza. Forester. #1. Legacy. 2.5L, #1 cylinder. 2.5L, 2003-04, #1. More Info
    MSRP $21.10
    $14.56
    MSRP $21.10
    $14.56
    Spark Plug Wire Set
    Part Number: SOA430Q115
    Other Names: Spark Plug Wire, Ignition Wire Set Legacy More Names
    Replaces: 22451AA570, SOA430Q105
    Description: Boot Color-Red. More Info
    MSRP $52.12
    $35.65
    MSRP $52.12
    $35.65
    Valve Cover Gasket
    Part Number: 13293AA051
    Options: Left Inner, Right Inner, Inner
    Other Names: Valve Cover Seal, Engine Valve Cover Washer Seal, Spark Plug Tube Seal, Valve Cover Inner Seal, Gasket Rocker Cover No 2 More Names
    Replaces: 13293AA040, 13293AA050
    MSRP $9.95
    $7.70
    MSRP $9.95
    $7.70
    Spark Plug
    Part Number: 22401AA010
    Replaces: 420547400
    MSRP $5.48
    $4.24
    MSRP $5.48
    $4.24
    Spark Plug Cord
    Part Number: 22451AA080
    MSRP $15.27
    $11.82
    MSRP $15.27
    $11.82
    Plug Spark
    Part Number: 22401AA980
    MSRP $99.02
    $67.73
    MSRP $99.02
    $67.73

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