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Autolite Spark Plugs

If you are looking for spark plugs, consider Autolite - the maker of America's best-selling plug. Whether you're in the market for Autolite Platinum, Iridium, Racing, or Sport plugs, we've got you covered. We offer a comprehensive lineup of spark plugs, including options from NGK, DENSO, Champion, E3, and Bosch. Sixity Auto is your home for spark plugs.

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  1. Autolite Spark Plug
    Autolite Racing AR3910X Spark Plug
    Special Price $5.96 Regular Price $8.99
    Autolite
    Out of stock
  2. Autolite Spark Plug
    4 pc Autolite Racing AR3910X Spark Plugs
    Special Price $20.74 Regular Price $29.99
    Autolite
    Out of stock
  3. Autolite Spark Plug
    8 pc Autolite Racing AR3910X Spark Plugs
    Special Price $40.62 Regular Price $57.99
    Autolite
    Out of stock
  4. Autolite Spark Plug
    8 pc Autolite Copper Core 764 Spark Plugs
    Special Price $21.66 Regular Price $30.99
    Autolite
    Out of stock
  5. Autolite Spark Plug
    8 pc Autolite Racing AR3932X Spark Plugs
    Special Price $37.96 Regular Price $53.99
    Autolite
    Out of stock
  6. Autolite Spark Plug
    4 pc Autolite Copper Core 4164 Spark Plugs
    Special Price $12.12 Regular Price $16.99
    Autolite
  7. Autolite Copper Core Spark Plug
    8 pc Autolite Copper Core Spark Plugs for 1984-1996 Ford F-150 5.0L 5.8L V8
    Special Price $31.30 Regular Price $44.99
    Autolite
    Out of stock
  8. Autolite Spark Plug
    6 pc Autolite Copper Core 3116 Spark Plugs
    Special Price $23.98 Regular Price $33.99
    Autolite
  9. Autolite Spark Plug
    Autolite Copper Core 3076 Spark Plug
    Special Price $5.45 Regular Price $7.99
    Autolite
    Out of stock
  10. Autolite Spark Plug
    8 pc Autolite Copper Core 605 Spark Plugs
    Special Price $20.19 Regular Price $28.99
    Autolite
    Out of stock
  11. Autolite Spark Plug
    8 pc Autolite Copper Core 985 Spark Plugs
    Special Price $20.19 Regular Price $28.99
    Autolite
    Out of stock
  12. Autolite Spark Plug
    8 pc Autolite Copper Core 3136 Spark Plugs
    Special Price $23.85 Regular Price $33.99
    Autolite
  13. Autolite Spark Plug
    8 pc Autolite Copper Core 386 Spark Plugs
    Special Price $28.22 Regular Price $39.99
    Autolite
    Out of stock
  14. Autolite Spark Plug
    8 pc Autolite Platinum HT0 Spark Plug
    Special Price $80.61 Regular Price $114.99
    Autolite
    Out of stock
  15. Autolite Copper Core Spark Plug
    6 pc Autolite Copper Core Spark Plugs for 1987-1996 Ford F-150 4.9L L6
    Special Price $31.64 Regular Price $44.99
    Autolite
    Out of stock
  16. Autolite Platinum Spark Plug
    8 pc Autolite Platinum Spark Plug for 1955-1961 Ford Fairlane 4.4L 4.5L 4.8L
    Special Price $39.82 Regular Price $56.99
    Autolite
    Out of stock
  17. Autolite Spark Plug
    6 pc Autolite Racing AR3932X Spark Plugs
    Special Price $28.69 Regular Price $40.99
    Autolite
    Out of stock
  18. Autolite Platinum Spark Plug
    6 pc Autolite Platinum Spark Plug for 2007-2020 Toyota Sienna 3.5L V6
    Special Price $29.88 Regular Price $42.99
    Autolite
    Out of stock
  19. Autolite Spark Plug
    6 pc Autolite Xtreme Sport XS4163DP Spark Plugs
    Special Price $33.80 Regular Price $47.99
    Autolite
    Out of stock
  20. Autolite Spark Plug
    8 pc Autolite Copper Core 26 Spark Plugs
    Special Price $20.19 Regular Price $28.99
    Autolite
    Out of stock
  21. Autolite Spark Plug
    4 pc Autolite Double Platinum APP5684 Spark Plug
    Special Price $22.82 Regular Price $32.99
    Autolite
    Out of stock
  22. Autolite Copper Core Spark Plug
    8 pc Autolite Copper Core Spark Plugs for 1955-1956 Oldsmobile Deluxe 88
    Special Price $35.09 Regular Price $49.99
    Autolite
  23. Autolite Copper Core Spark Plug
    10 pc Autolite Copper Core Spark Plugs for 1999-2004 Ford F-250 Super Duty 6.8L V10
    Special Price $40.30 Regular Price $57.99
    Autolite
  24. Autolite Spark Plug
    Autolite Copper Core 3922 Spark Plug
    Special Price $3.35 Regular Price $4.99
    Autolite
  25. Autolite Spark Plug
    Autolite Xtreme Sport XS4092DP Spark Plug
    Special Price $6.21 Regular Price $8.99
    Autolite
  26. Autolite Spark Plug
    4 pc Autolite Copper Core 4092 Spark Plugs
    Special Price $10.81 Regular Price $14.99
    Autolite
    Out of stock
  27. Autolite Spark Plug
    6 pc Autolite Copper Core 64 Spark Plugs
    Special Price $14.65 Regular Price $20.99
    Autolite
    Out of stock
  28. Autolite Spark Plug
    6 pc Autolite Copper Core 4164 Spark Plugs
    Special Price $18.11 Regular Price $25.99
    Autolite
  29. Autolite Spark Plug
    8 pc Autolite Copper Core 3923 Spark Plugs
    Special Price $19.24 Regular Price $26.99
    Autolite
    Out of stock
  30. Autolite Copper Core Spark Plug
    4 pc Autolite Copper Core Spark Plugs for 1962 Triumph TR3B 2.0L 2.1L L4
    Special Price $20.11 Regular Price $28.99
    Autolite
    Out of stock
  31. Autolite Spark Plug
    8 pc Autolite Copper Core 24 Spark Plugs
    Special Price $20.61 Regular Price $28.99
    Autolite
    Out of stock
  32. Autolite Spark Plug
    6 pc Autolite Copper Core 386 Spark Plugs
    Special Price $21.39 Regular Price $30.99
    Autolite
    Out of stock
  33. Autolite Platinum Spark Plug
    4 pc Autolite Platinum Spark Plug for 1963-1978 Triumph Spitfire 1.1L 1.2L
    Special Price $23.36 Regular Price $32.99
    Autolite
    Out of stock
  34. Autolite Spark Plug
    8 pc Autolite Platinum AP45 Spark Plug
    Special Price $25.21 Regular Price $35.99
    Autolite
    Out of stock
  35. Autolite Spark Plug
    8 pc Autolite Platinum AP25 Spark Plug
    Special Price $25.21 Regular Price $35.99
    Autolite
    Out of stock
  36. Autolite Spark Plug
    8 pc Autolite Platinum AP3924 Spark Plug
    Rating:
    80%
    1  Review
    Special Price $25.21 Regular Price $35.99
    Autolite
  37. Autolite Spark Plug
    8 pc Autolite Copper Core 403 Spark Plugs
    Rating:
    100%
    2  Reviews
    Special Price $25.48 Regular Price $35.99
    Autolite
    Out of stock
  38. Autolite Copper Core Spark Plug
    6 pc Autolite Copper Core Spark Plugs for 2006-2011 Chevrolet Impala 3.5L 3.9L V6
    Special Price $25.54 Regular Price $35.99
    Autolite
    Out of stock
  39. Autolite Spark Plug
    8 pc Autolite Platinum AP5245 Spark Plug
    Special Price $25.73 Regular Price $36.99
    Autolite
    Out of stock
  40. Autolite Copper Core Spark Plug
    6 pc Autolite Copper Core Spark Plugs for 1940-1954 Chrysler Windsor
    Rating:
    100%
    1  Review
    Special Price $26.12 Regular Price $36.99
    Autolite
  41. Autolite Copper Core Spark Plug
    6 pc Autolite Copper Core Spark Plugs for 1965-1983 Ford F-100 3.9L 4.9L L6
    Special Price $26.34 Regular Price $37.99
    Autolite
    Out of stock
  42. Autolite Platinum Spark Plug
    6 pc Autolite Platinum Spark Plug for 2004-2011 Ford Ranger 4.0L V6
    Special Price $30.17 Regular Price $42.99
    Autolite
    Out of stock
  43. Autolite Platinum Spark Plug
    6 pc Autolite Platinum Spark Plug for 2005-2010 Ford Mustang 4.0L V6
    Special Price $30.17 Regular Price $42.99
    Autolite
    Out of stock
  44. Autolite Copper Core Spark Plug
    8 pc Autolite Copper Core Spark Plugs for 1996-1999 Chevrolet C1500 Suburban 5.7L V8
    Special Price $31.08 Regular Price $43.99
    Autolite
    Out of stock
  45. Autolite Copper Core Spark Plug
    6 pc Autolite Copper Core Spark Plugs for 1987-1996 Ford F-250 4.9L L6
    Special Price $31.64 Regular Price $44.99
    Autolite
    Out of stock
  46. Autolite Copper Core Spark Plug
    8 pc Autolite Copper Core Spark Plug for 1997-1999 Chevrolet C3500
    Special Price $31.94 Regular Price $45.99
    Autolite
    Out of stock
  47. Autolite Copper Core Spark Plug
    8 pc Autolite Copper Core Spark Plugs for 1996-2001 Ford Explorer 5.0L V8
    Special Price $33.54 Regular Price $47.99
    Autolite
    Out of stock
  48. Autolite Spark Plug
    6 pc Autolite Double Platinum APP5683 Spark Plug
    Special Price $34.49 Regular Price $48.99
    Autolite
    Out of stock
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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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100% fitment guarantee at sixityauto.com

100% FITMENT GUARANTEE
Your parts will fit as advertised

Shop with confidence, knowing that your purchase from Sixity Auto will fit your vehicle. If after purchase you determine that your part does not fit the vehicle we advertised, simply contact us to initiate a return. We want your parts to fit!

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We speak your language. Our staff has decades of experience selling auto parts to enthusiasts like you. Whether it's for your car, truck, or van, we have staff on hand that can answer your questions and make sure you get the part you're looking for.

For phone sales or help with product fitment questions, our U.S.-based customer service staff in California and Indiana is available weekdays, 8am-8pm ET.

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Sixity Auto works with a wide range of business customers—from repair shops and dealerships to fleet operators, government organizations, and others that purchase parts for resale or operational use.

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Save 10% on every purchase

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© 2026 Sixity, Inc. Part of Proximity Group, an American-owned and operated online retailer. All Rights Reserved.