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Spark Plugs for Subaru Outback

Maximize your Subaru Outback's efficiency with heavy-duty spark plugs tailored for rugged adventures. Opt for dependable options such as DENSO to ensure reliable ignition or NGK for exceptional durability on longer hauls. Keep your Outback ready for every trail and every mile ahead.

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Items 1-48 of 113

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  1. NGK Laser Iridium
    4 pc NGK Laser Iridium Spark Plugs for 2013-2019 Subaru Outback 2.5L H4
    Special Price $78.83 Regular Price $112.99
    NGK / NTK
  2. NGK Spark Plug
    4 pc NGK Iridium IX Spark Plugs for 2013-2019 Subaru Outback 2.5L H4
    Special Price $39.91 Regular Price $56.99
    NGK / NTK
  3. NGK Iridium IX
    4 pc NGK Iridium IX Spark Plugs for 2000-2012 Subaru Outback 2.5L H4
    Special Price $39.81 Regular Price $56.99
    NGK / NTK
  4. NGK Laser Iridium
    6 pc NGK Laser Iridium Spark Plugs for 2010-2019 Subaru Outback 3.6L H6
    Special Price $110.37 Regular Price $157.99
    NGK / NTK
  5. NGK Laser Platinum
    6 pc NGK Laser Platinum Spark Plugs for 2001-2004 Subaru Outback 3.0L H6
    Special Price $78.91 Regular Price $112.99
    NGK / NTK
  6. NGK Iridium IX
    6 pc NGK Iridium IX Spark Plugs for 2001-2019 Subaru Outback 3.0L 3.6L H6
    Rating:
    100%
    2  Reviews
    Special Price $57.32 Regular Price $81.99
    NGK / NTK
  7. DENSO Spark Plug
    6 pc DENSO Iridium TT Spark Plugs for 2001-2017 Subaru Outback 3.0L 3.6L H6
    Special Price $66.81 Regular Price $94.99
    DENSO
  8. Bosch Spark Plug
    4 pc Bosch Double Platinum Spark Plugs for 2005-2009 Subaru Outback 2.5L H4
    Special Price $34.70 Regular Price $49.99
    Bosch
  9. DENSO Spark Plug
    4 pc DENSO Iridium Power Spark Plugs for 2000-2012 Subaru Outback 2.5L H4
    Special Price $40.08 Regular Price $56.99
    DENSO
  10. Bosch Spark Plug
    4 pc Bosch Double Iridium Spark Plugs for 2013-2019 Subaru Outback 2.5L H4
    Special Price $49.08 Regular Price $69.99
    Bosch
  11. NGK Spark Plug
    4 pc NGK Ruthenium HX Spark Plugs for 2013-2019 Subaru Outback 2.5L H4
    Special Price $54.52 Regular Price $77.99
    NGK / NTK
  12. DENSO Spark Plug
    4 pc DENSO Iridium Long Life Spark Plugs for 2005-2008 Subaru Outback 2.5L H4
    Special Price $57.02 Regular Price $80.99
    DENSO
  13. NGK Standard
    4 pc NGK Standard Spark Plugs for 2000-2009 Subaru Outback 2.5L H4
    Special Price $21.60 Regular Price $30.99
    NGK / NTK
  14. DENSO Spark Plug
    4 pc DENSO Standard U-Groove Spark Plugs for 2005-2008 Subaru Outback 2.5L H4
    Special Price $33.74 Regular Price $47.99
    DENSO
  15. Bosch Spark Plug
    4 pc Bosch Double Platinum Spark Plugs for 2000-2004 Subaru Outback 2.5L H4
    Special Price $35.41 Regular Price $50.99
    Bosch
  16. NGK V-Power
    6 pc NGK V-Power Spark Plugs for 2001-2004 Subaru Outback 3.0L H6
    Special Price $51.50 Regular Price $73.99
    NGK / NTK
  17. NGK V-Power
    6 pc NGK V-Power Spark Plugs for 2010-2017 Subaru Outback 3.6L H6
    Special Price $52.03 Regular Price $73.99
    NGK / NTK
  18. Champion Copper Plus Spark Plug
    4 pc Champion Copper Plus Spark Plugs for 2005-2009 Subaru Outback 2.5L H4
    Special Price $17.16 Regular Price $24.99
    Champion
  19. Champion Spark Plug
    4 pc Champion Copper Plus Spark Plugs for 2010-2012 Subaru Outback 2.5L H4
    Special Price $17.81 Regular Price $24.99
    Champion
  20. Bosch Spark Plug
    4 pc Bosch Nickel Copper Spark Plugs for 2000-2004 Subaru Outback 2.5L H4
    Special Price $17.82 Regular Price $24.99
    Bosch
  21. Champion Spark Plug
    4 pc Champion Copper Plus Spark Plugs for 2000-2004 Subaru Outback 2.5L H4
    Special Price $17.93 Regular Price $25.99
    Champion
  22. Champion Spark Plug
    4 pc Champion Copper Plus Spark Plugs for 2005-2009 Subaru Outback 2.5L H4
    Special Price $18.60 Regular Price $26.99
    Champion
  23. DENSO Spark Plug
    4 pc DENSO Standard U-Groove Spark Plugs for 2000-2009 Subaru Outback 2.5L H4
    Special Price $18.81 Regular Price $26.99
    DENSO
  24. NGK Standard
    4 pc NGK Standard Spark Plugs for 2000-2003 Subaru Outback 2.5L H4
    Special Price $19.40 Regular Price $27.99
    NGK / NTK
  25. Autolite Copper Core Spark Plug
    4 pc Autolite Copper Core Spark Plugs for 2000-2012 Subaru Outback 2.5L H4
    Special Price $19.56 Regular Price $27.99
    Autolite
    Out of stock
  26. NGK V-Power
    4 pc NGK V-Power Spark Plugs for 2000-2012 Subaru Outback 2.5L H4
    Special Price $20.91 Regular Price $29.99
    NGK / NTK
  27. NGK V-Power
    4 pc NGK V-Power Spark Plugs for 2000-2009 Subaru Outback 2.5L H4
    Special Price $20.91 Regular Price $29.99
    NGK / NTK
  28. Autolite Platinum Spark Plug
    4 pc Autolite Platinum Spark Plug for 2000-2012 Subaru Outback 2.5L H4
    Special Price $22.46 Regular Price $31.99
    Autolite
    Out of stock
  29. Champion Spark Plug
    4 pc Champion Platinum Spark Plugs for 2005-2009 Subaru Outback 2.5L H4
    Special Price $22.69 Regular Price $31.99
    Champion
  30. Autolite Platinum Spark Plug
    4 pc Autolite Platinum Spark Plug for 2005-2009 Subaru Outback 2.5L H4
    Special Price $23.03 Regular Price $32.99
    Autolite
    Out of stock
  31. Autolite Platinum Spark Plug
    4 pc Autolite Platinum Spark Plug for 2005-2009 Subaru Outback
    Special Price $23.14 Regular Price $32.99
    Autolite
    Out of stock
  32. Champion Spark Plug
    4 pc Champion Platinum Spark Plugs for 2000-2012 Subaru Outback 2.5L H4
    Special Price $23.22 Regular Price $32.99
    Champion
  33. Autolite Copper Core Spark Plug
    4 pc Autolite Copper Core Spark Plugs for 2005-2009 Subaru Outback
    Special Price $24.01 Regular Price $33.99
    Autolite
    Out of stock
  34. Champion Spark Plug
    6 pc Champion Copper Plus Spark Plugs for 2001-2019 Subaru Outback 3.0L 3.6L H6
    Special Price $24.72 Regular Price $34.99
    Champion
  35. NGK G-Power
    4 pc NGK G-Power Spark Plugs for 2000-2012 Subaru Outback 2.5L H4
    Special Price $25.06 Regular Price $35.99
    NGK / NTK
  36. Bosch Spark Plug
    4 pc Bosch Platinum Spark Plugs for 2005-2009 Subaru Outback 2.5L H4
    Special Price $25.37 Regular Price $35.99
    Bosch
    Out of stock
  37. NGK G-Power
    4 pc NGK G-Power Spark Plugs for 2000-2009 Subaru Outback 2.5L H4
    Special Price $25.53 Regular Price $35.99
    NGK / NTK
  38. Bosch Spark Plug
    4 pc Bosch Platinum Spark Plugs for 2000-2004 Subaru Outback 2.5L H4
    Special Price $26.23 Regular Price $36.99
    Bosch
  39. DENSO Spark Plug
    4 pc DENSO Platinum TT Spark Plugs for 2000-2010 Subaru Outback 2.5L H4
    Special Price $27.34 Regular Price $38.99
    DENSO
  40. Champion Copper Plus Spark Plug
    4 pc Champion Copper Plus Spark Plugs for 2013-2019 Subaru Outback 2.5L H4
    Special Price $27.79 Regular Price $39.99
    Champion
  41. Autolite Platinum Spark Plug
    6 pc Autolite Platinum Spark Plug for 2001-2019 Subaru Outback 3.0L 3.6L H6
    Special Price $29.88 Regular Price $42.99
    Autolite
    Out of stock
  42. Champion Spark Plug
    4 pc Champion Double Platinum Spark Plugs for 2005-2009 Subaru Outback 2.5L H4
    Special Price $31.53 Regular Price $44.99
    Champion
  43. Autolite Copper Core Spark Plug
    6 pc Autolite Copper Core Spark Plugs for 2001-2019 Subaru Outback 3.0L 3.6L H6
    Special Price $31.80 Regular Price $44.99
    Autolite
    Out of stock
  44. Champion Spark Plug
    4 pc Champion Double Platinum Spark Plugs for 2010-2012 Subaru Outback 2.5L H4
    Special Price $32.34 Regular Price $45.99
    Champion
  45. Champion Spark Plug
    4 pc Champion Double Platinum Spark Plugs for 2000-2004 Subaru Outback 2.5L H4
    Special Price $33.18 Regular Price $46.99
    Champion
  46. Champion Spark Plug
    4 pc Champion Double Platinum Spark Plugs for 2005-2009 Subaru Outback 2.5L H4
    Special Price $33.22 Regular Price $46.99
    Champion
  47. E3 Spark Plug
    4 pc E3 Spark Plugs for 2000-2012 Subaru Outback 2.5L H4
    Special Price $33.47 Regular Price $47.99
    E3 Spark Plugs
  48. E3 Spark Plug
    4 pc E3 Spark Plugs for 2005-2009 Subaru Outback 2.5L H4
    Special Price $33.47 Regular Price $47.99
    E3 Spark Plugs
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The Sixity Auto Advantage

Finding the right car spark plugs can seem complicated, but our goal is to make it simple. We combine a massive selection of parts from trusted brands with the expert, US-based support you need to make the right choice. With fast shipping and a 100% fitment guarantee, we provide a hassle-free shopping experience that has earned the trust of over a million customers.

Platinum, Iridium, and More

Choosing the right material is key to your engine’s performance and longevity. We carry a massive selection of aftermarket spark plugs in every type, from long-lasting iridium to dependable copper plugs for classic vehicles. Whatever your engine needs, we have the right plug to match its specific requirements, ensuring optimal spark and efficiency.

Expert Support When You Need It

Not sure which plug is right for your vehicle? Our friendly, US-based customer support team is here to help. With deep knowledge of our full catalog, they can guide you to the perfect car spark plugs for your specific make and model. We are committed to helping you buy with confidence and getting your installation done right the first time.

Frequently Asked Questions

Got a question about our automotive spark plugs? Here are a few things people often ask. For anything else, our main FAQ page has you covered.

How do I find the right spark plugs for my car?

Your best bet is our vehicle selector tool. Just plug in your car’s info, and we’ll show you exactly which plugs are guaranteed to work.

Are your aftermarket spark plugs as good as the originals?

Definitely. We only carry parts that are as good or better than the ones that came in your car, but without those dealership prices.

How often should I replace car spark plugs?

That really depends on the type. A standard copper plug is usually good for about 20,000 miles, while a high-end iridium one can last 100,000. Your owner’s manual will have the exact schedule for your engine.

Spark Plug Features

  • Precision ceramic insulators
  • Corrosion-resistant shell with triple high pressure gas seals
  • Screw or snap-on electrical connectors
  • Pre-installed metal compression gaskets
  • Copper-core electrode cooling
  • Application specific heat-range design
  • Improved cold-starting performance
  • Smooth firing at high or low engine RPM
  • Reduced electrode erosion and long service life
  • Enhanced ignition efficiency and fuel economy
  • Superior anti-fouling characteristics
  • Reduced hot-spark firing voltage requirements
  • Maximum engine horsepower and torque
  • Superior throttle-response, acceleration and WOT performance
  • Precision Laser-welded Iridium electrodes - 6X harder than platinum
  • Precision ceramic insulators
  • Corrosion-resistant shell with triple high pressure gas seals
  • Screw or snap-on electrical connectors
  • Pre-installed metal compression gaskets
  • Copper-core electrode cooling
  • Application specific heat-range design
  • Improved cold-starting performance
  • Smooth firing at high or low engine RPM
  • Reduced electrode erosion and long service life
  • Enhanced ignition efficiency and fuel economy
  • Superior anti-fouling characteristics
  • Reduced hot-spark firing voltage requirements
  • Maximum engine horsepower and torque
  • Superior throttle-response, acceleration and WOT performance
  • Precision Laser-welded Iridium electrodes - 6X harder than platinum
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