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Spark Plugs for Subaru Forester

Revitalize your Subaru Forester with top-quality spark plugs designed to optimize performance and reliability. Durable options like DENSO spark plugs ensure smooth ignition, while Bosch guarantees long-lasting efficiency for your Forester. Upgrade your vehicle to maintain excellent combustion and fuel economy.

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  1. NGK Spark Plug
    4 pc NGK Iridium IX Spark Plugs for 2011-2018 Subaru Forester 2.5L H4
    Special Price $39.91 Regular Price $56.99
    NGK / NTK
  2. NGK Standard
    4 pc NGK Standard Spark Plugs for 1998-2010 Subaru Forester 2.5L H4
    Special Price $22.05 Regular Price $30.99
    NGK / NTK
  3. NGK Spark Plug
    4 pc NGK Iridium IX Spark Plugs for 2004-2013 Subaru Forester 2.5L H4
    Special Price $39.91 Regular Price $56.99
    NGK / NTK
  4. NGK Laser Iridium
    4 pc NGK Laser Iridium Spark Plugs for 2009-2013 Subaru Forester 2.5L H4
    Special Price $61.28 Regular Price $87.99
    NGK / NTK
  5. NGK Spark Plug
    4 pc NGK G-Power Spark Plugs for 2011-2018 Subaru Forester 2.5L H4
    Special Price $33.62 Regular Price $47.99
    NGK / NTK
  6. Bosch Spark Plug
    4 pc Bosch Double Iridium Spark Plugs for 2011-2018 Subaru Forester 2.5L H4
    Special Price $49.08 Regular Price $69.99
    Bosch
  7. NGK Spark Plug
    4 pc NGK Ruthenium HX Spark Plugs for 1998-2010 Subaru Forester 2.5L H4
    Special Price $54.62 Regular Price $77.99
    NGK / NTK
  8. DENSO Spark Plug
    4 pc DENSO Standard U-Groove Spark Plugs for 1998-2004 Subaru Forester 2.5L H4
    Special Price $19.20 Regular Price $26.99
    DENSO
  9. Champion Copper Plus Spark Plug
    4 pc Champion Copper Plus Spark Plugs for 2011-2018 Subaru Forester 2.5L H4
    Special Price $27.79 Regular Price $39.99
    Champion
  10. E3 Spark Plug
    4 pc E3 Spark Plugs for 1999-2004 Subaru Forester 2.5L H4
    Special Price $32.80 Regular Price $46.99
    E3 Spark Plugs
  11. Bosch Spark Plug
    4 pc Bosch Double Platinum Spark Plugs for 2005-2010 Subaru Forester 2.5L H4
    Special Price $35.41 Regular Price $50.99
    Bosch
  12. Champion Spark Plug
    4 pc Champion Iridium Spark Plugs for 2004-2013 Subaru Forester 2.5L H4
    Special Price $36.26 Regular Price $51.99
    Champion
  13. DENSO Spark Plug
    4 pc DENSO Iridium Power Spark Plugs for 2004-2013 Subaru Forester 2.5L H4
    Special Price $44.43 Regular Price $62.99
    DENSO
  14. DENSO Spark Plug
    4 pc DENSO Iridium Long Life Spark Plugs for 1998-2004 Subaru Forester 2.5L H4
    Special Price $53.73 Regular Price $76.99
    DENSO
  15. NGK Laser Iridium
    4 pc NGK Laser Iridium Spark Plugs for 2014-2018 Subaru Forester 2.0L H4
    Special Price $59.09 Regular Price $83.99
    NGK / NTK
  16. NGK Laser Iridium
    4 pc NGK Laser Iridium Spark Plugs for 2011-2018 Subaru Forester 2.5L H4
    Special Price $78.83 Regular Price $112.99
    NGK / NTK
  17. Champion Copper Plus Spark Plug
    4 pc Champion Copper Plus Spark Plugs for 1998-2010 Subaru Forester 2.5L H4
    Special Price $17.16 Regular Price $24.99
    Champion
  18. Champion Spark Plug
    4 pc Champion Copper Plus Spark Plugs for 1999 Subaru Forester 2.5L H4
    Special Price $17.57 Regular Price $24.99
    Champion
  19. Bosch Spark Plug
    4 pc Bosch Nickel Copper Spark Plugs for 1999-2004 Subaru Forester 2.5L H4
    Special Price $17.82 Regular Price $24.99
    Bosch
    Out of stock
  20. Champion Spark Plug
    4 pc Champion Copper Plus Spark Plugs for 2004-2013 Subaru Forester 2.5L H4
    Special Price $18.60 Regular Price $26.99
    Champion
  21. DENSO Spark Plug
    4 pc DENSO Standard U-Groove Spark Plugs for 2005-2010 Subaru Forester 2.5L H4
    Special Price $18.81 Regular Price $26.99
    DENSO
  22. Autolite Copper Core Spark Plug
    4 pc Autolite Copper Core Spark Plugs for 1999-2004 Subaru Forester
    Special Price $19.16 Regular Price $26.99
    Autolite
    Out of stock
  23. NGK Standard
    4 pc NGK Standard Spark Plugs for 1999-2004 Subaru Forester 2.5L H4
    Special Price $19.40 Regular Price $27.99
    NGK / NTK
  24. NGK V-Power
    4 pc NGK V-Power Spark Plugs for 1999-2004 Subaru Forester 2.5L H4
    Special Price $20.91 Regular Price $29.99
    NGK / NTK
  25. NGK V-Power
    4 pc NGK V-Power Spark Plugs for 1998-2010 Subaru Forester 2.5L H4
    Special Price $21.34 Regular Price $29.99
    NGK / NTK
  26. Autolite Platinum Spark Plug
    4 pc Autolite Platinum Spark Plug for 1999-2004 Subaru Forester
    Special Price $22.46 Regular Price $31.99
    Autolite
    Out of stock
  27. Autolite Platinum Spark Plug
    4 pc Autolite Platinum Spark Plug for 1998-2010 Subaru Forester
    Special Price $22.57 Regular Price $31.99
    Autolite
  28. Champion Spark Plug
    4 pc Champion Platinum Spark Plugs for 1998-2010 Subaru Forester 2.5L H4
    Special Price $22.69 Regular Price $31.99
    Champion
  29. Autolite Platinum Spark Plug
    4 pc Autolite Platinum Spark Plug for 2004-2013 Subaru Forester
    Special Price $23.14 Regular Price $32.99
    Autolite
    Out of stock
  30. Champion Spark Plug
    4 pc Champion Platinum Spark Plugs for 1999 Subaru Forester 2.5L H4
    Special Price $23.69 Regular Price $33.99
    Champion
  31. Autolite Copper Core Spark Plug
    4 pc Autolite Copper Core Spark Plugs for 2004-2013 Subaru Forester
    Special Price $24.01 Regular Price $33.99
    Autolite
    Out of stock
  32. NGK G-Power
    4 pc NGK G-Power Spark Plugs for 1998-2010 Subaru Forester 2.5L H4
    Special Price $25.01 Regular Price $35.99
    NGK / NTK
  33. Bosch Spark Plug
    4 pc Bosch Platinum Spark Plugs for 2005-2010 Subaru Forester 2.5L H4
    Special Price $25.37 Regular Price $35.99
    Bosch
    Out of stock
  34. NGK G-Power
    4 pc NGK G-Power Spark Plugs for 1999-2004 Subaru Forester 2.5L H4
    Special Price $25.57 Regular Price $36.99
    NGK / NTK
  35. Bosch Spark Plug
    4 pc Bosch Platinum Spark Plugs for 1999-2004 Subaru Forester 2.5L H4
    Special Price $26.23 Regular Price $36.99
    Bosch
  36. DENSO Spark Plug
    4 pc DENSO Platinum TT Spark Plugs for 2005-2010 Subaru Forester 2.5L H4
    Special Price $27.90 Regular Price $39.99
    DENSO
  37. DENSO Spark Plug
    4 pc DENSO Platinum TT Spark Plugs for 1998-2004 Subaru Forester 2.5L H4
    Special Price $27.90 Regular Price $39.99
    DENSO
  38. Champion Double Platinum Spark Plug
    4 pc Champion Double Platinum Spark Plugs for 1999 Subaru Forester 2.5L H4
    Special Price $30.32 Regular Price $42.99
    Champion
  39. Champion Spark Plug
    4 pc Champion Double Platinum Spark Plugs for 2004-2013 Subaru Forester 2.5L H4
    Special Price $31.53 Regular Price $44.99
    Champion
  40. E3 Spark Plug
    4 pc E3 Spark Plugs for 1998-2010 Subaru Forester 2.5L H4
    Special Price $32.80 Regular Price $46.99
    E3 Spark Plugs
  41. Autolite Double Platinum Spark Plug
    4 pc Autolite Double Platinum Spark Plug for 2011-2018 Subaru Forester 2.5L
    Special Price $32.83 Regular Price $46.99
    Autolite
    Out of stock
  42. E3 Spark Plug
    4 pc E3 Spark Plugs for 2011-2015 Subaru Forester 2.5L H4
    Special Price $33.03 Regular Price $46.99
    E3 Spark Plugs
  43. Autolite Double Platinum Spark Plug
    4 pc Autolite Double Platinum Spark Plug for 1998-2010 Subaru Forester
    Special Price $33.61 Regular Price $47.99
    Autolite
  44. Autolite Double Platinum Spark Plug
    4 pc Autolite Double Platinum Spark Plug for 1999-2004 Subaru Forester
    Special Price $33.61 Regular Price $47.99
    Autolite
    Out of stock
  45. Autolite Double Platinum Spark Plug
    4 pc Autolite Double Platinum Spark Plug for 2014-2018 Subaru Forester 2.0L
    Special Price $33.61 Regular Price $47.99
    Autolite
    Out of stock
  46. E3 Spark Plug
    4 pc E3 Spark Plugs for 2004-2013 Subaru Forester 2.5L H4
    Special Price $33.76 Regular Price $47.99
    E3 Spark Plugs
  47. Champion Spark Plug
    4 pc Champion Double Platinum Spark Plugs for 1998-2010 Subaru Forester 2.5L H4
    Special Price $33.90 Regular Price $47.99
    Champion
  48. NGK G-Power
    4 pc NGK G-Power Spark Plugs for 2004-2013 Subaru Forester 2.5L H4
    Special Price $34.31 Regular Price $48.99
    NGK / NTK
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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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