Autolite Iridium XP High-Performance Car Spark Plugs

Top brands like NGK, DENSO, Autolite, and Champion help maximize your engine’s power and performance. We carry thousands of automotive spark plugs for everything from a Chevy to a Ford or a Volkswagen to a Toyota, all backed by our 100% fitment guarantee. Browse popular series, including NGK Iridium, NGK Racing, and NGK G-Power, to find the perfect replacement spark plugs for your vehicle.

NGK spark plugs and DENSO spark plugs, plus those from Autolite, Bosch, and Champion, help maximize engine power and operating performance ride after ride. We carry thousands of spark plugs for everything from Chevy to Ford, Volkswagen to Toyota, all with a 100% fitment guarantee. Browse popular spark plugs including NGK Iridium, NGK Racing, NGK G-Power, and many more replacement spark plugs. Ensure they’re well protected in the Cylinder Head and properly connected via the Coil Boots when replacing them.

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  1. Autolite Iridium XP Spark Plug
    4 pc Autolite Iridium XP Spark Plug for 1985-1993 Chevrolet S10 2.5L L4
    Special Price $37.42 Regular Price $52.99
    Out of stock
  2. Autolite Iridium XP Spark Plug
    6 pc Autolite Iridium XP XP985 Spark Plug
    Rating:
    100%
    Special Price $39.03 Regular Price $55.99
    Out of stock
  3. Autolite Iridium XP Spark Plug
    6 pc Autolite Iridium XP Spark Plug for 1997-2006 Jeep TJ 4.0L L6
    Special Price $51.03 Regular Price $72.99
    Out of stock
  4. Autolite Iridium XP Spark Plug
    Autolite Iridium XP XP6203 Spark Plug
    Special Price $7.23 Regular Price $9.99
  5. Autolite Iridium XP Spark Plug
    4 pc Autolite Iridium XP Spark Plug for 2007-2018 Nissan Altima 2.5L L4
    Special Price $36.56 Regular Price $51.99
    Out of stock
  6. Autolite Iridium XP Spark Plug
    4 pc Autolite Iridium XP Spark Plug for 2016-2019 Honda Civic 1.5L 2.0L L4
    Special Price $37.31 Regular Price $52.99
    Out of stock
  7. Autolite Iridium XP Spark Plug
    4 pc Autolite Iridium XP Spark Plug for 1954 MG TF
    Special Price $37.85 Regular Price $53.99
    Out of stock
  8. Autolite Iridium XP Spark Plug
    Autolite Iridium XP XP605 Spark Plug
    Special Price $7.23 Regular Price $9.99
  9. Autolite Iridium XP Spark Plug
    Autolite Iridium XP XP6003 Spark Plug
    Special Price $7.23 Regular Price $9.99
    Out of stock
  10. Autolite Iridium XP Spark Plug
    Autolite Iridium XP XP5703 Spark Plug
    Special Price $7.23 Regular Price $9.99
  11. Autolite Iridium XP Spark Plug
    Autolite Iridium XP XP5405 Spark Plug
    Special Price $7.23 Regular Price $9.99
  12. Autolite Iridium XP Spark Plug
    4 pc Autolite Iridium XP XP666 Spark Plug
    Special Price $26.31 Regular Price $37.99
    Out of stock
  13. Autolite Iridium XP Spark Plug
    3 pc Autolite Iridium XP Spark Plug for 1981 Suzuki LJ81
    Special Price $30.50 Regular Price $43.99
    Out of stock
  14. Autolite Iridium XP Spark Plug
    4 pc Autolite Iridium XP Spark Plug for 1999 Toyota Tercel
    Special Price $36.66 Regular Price $51.99
    Out of stock
  15. Autolite Iridium XP Spark Plug
    4 pc Autolite Iridium XP Spark Plug for 1986-1987 Ford Aerostar 2.3L L4
    Special Price $36.66 Regular Price $51.99
  16. Autolite Iridium XP Spark Plug
    4 pc Autolite Iridium XP Spark Plug for 1996-2000 Plymouth Breeze 2.4L L4
    Special Price $36.66 Regular Price $51.99
    Out of stock
  17. Autolite Iridium XP Spark Plug
    4 pc Autolite Iridium XP Spark Plug for 1998-2000 Isuzu Amigo 2.2L L4
    Special Price $36.66 Regular Price $51.99
    Out of stock
  18. Autolite Iridium XP Spark Plug
    4 pc Autolite Iridium XP Spark Plug for 2005-2011 Lotus Elise 1.8L L4
    Special Price $36.66 Regular Price $51.99
    Out of stock
  19. Autolite Iridium XP Spark Plug
    4 pc Autolite Iridium XP Spark Plug for 2013-2018 Ford C-Max
    Special Price $36.77 Regular Price $52.99
    Out of stock
  20. Autolite Iridium XP Spark Plug
    4 pc Autolite Iridium XP Spark Plug for 2007-2012 Dodge Caliber 1.8L 2.0L
    Special Price $36.77 Regular Price $52.99
    Out of stock
  21. Autolite Iridium XP Spark Plug
    4 pc Autolite Iridium XP Spark Plug for 1989-1992 Ford Probe 2.2L L4
    Special Price $36.77 Regular Price $52.99
    Out of stock
  22. Autolite Iridium XP Spark Plug
    4 pc Autolite Iridium XP Spark Plug for 2001-2015 Volkswagen Jetta 2.0L L4
    Special Price $36.77 Regular Price $52.99
    Out of stock
  23. Autolite Iridium XP Spark Plug
    4 pc Autolite Iridium XP Spark Plug for 2002-2006 Nissan Altima 2.5L L4
    Special Price $36.88 Regular Price $52.99
    Out of stock
  24. Autolite Iridium XP Spark Plug
    4 pc Autolite Iridium XP Spark Plug for 2005-2006 Nissan X-Trail
    Special Price $36.88 Regular Price $52.99
    Out of stock
  25. Autolite Iridium XP Spark Plug
    4 pc Autolite Iridium XP Spark Plug for 2007-2008 Isuzu i-290
    Special Price $36.88 Regular Price $52.99
    Out of stock
  26. Autolite Iridium XP Spark Plug
    4 pc Autolite Iridium XP Spark Plug for 1971-1979 Fiat 128 1.1L 1.3L L4
    Special Price $37.09 Regular Price $52.99
    Out of stock
  27. Autolite Iridium XP Spark Plug
    4 pc Autolite Iridium XP Spark Plug for 1980-1983 Volkswagen Rabbit Pickup
    Special Price $37.09 Regular Price $52.99
    Out of stock
  28. Autolite Iridium XP Spark Plug
    4 pc Autolite Iridium XP Spark Plug for 1964 Alfa Romeo GTC
    Special Price $37.09 Regular Price $52.99
    Out of stock
  29. Autolite Iridium XP Spark Plug
    4 pc Autolite Iridium XP Spark Plug for 1968-1972 NSU TT
    Special Price $37.09 Regular Price $52.99
    Out of stock
  30. Autolite Iridium XP Spark Plug
    4 pc Autolite Iridium XP Spark Plug for 1989 Volvo 740
    Special Price $37.09 Regular Price $52.99
    Out of stock
  31. Autolite Iridium XP Spark Plug
    4 pc Autolite Iridium XP Spark Plug for 1975-1976 Mercury Bobcat 2.3L L4
    Special Price $37.42 Regular Price $52.99
    Out of stock
  32. Autolite Iridium XP Spark Plug
    4 pc Autolite Iridium XP Spark Plug for 2013-2014 Hyundai Elantra Coupe
    Special Price $37.42 Regular Price $52.99
    Out of stock
  33. Autolite Iridium XP Spark Plug
    4 pc Autolite Iridium XP Spark Plug for 1982-1986 Chevrolet Camaro 2.5L L4
    Special Price $37.42 Regular Price $52.99
    Out of stock
  34. Autolite Iridium XP Spark Plug
    4 pc Autolite Iridium XP Spark Plug for 1980-1983 Chevrolet Citation 2.5L L4
    Special Price $37.42 Regular Price $52.99
    Out of stock
  35. Autolite Iridium XP Spark Plug
    4 pc Autolite Iridium XP Spark Plug for 1992-2003 Mitsubishi Galant 2.4L L4
    Special Price $37.42 Regular Price $52.99
    Out of stock
  36. Autolite Iridium XP Spark Plug
    4 pc Autolite Iridium XP Spark Plug for 1991-1999 BMW 318i
    Special Price $37.42 Regular Price $52.99
    Out of stock
  37. Autolite Iridium XP Spark Plug
    4 pc Autolite Iridium XP Spark Plug for 2007-2017 Jeep Compass 2.0L 2.4L L4
    Special Price $37.53 Regular Price $53.99
    Out of stock
  38. Autolite Iridium XP Spark Plug
    4 pc Autolite Iridium XP Spark Plug for 2003-2006 Jeep TJ 2.4L L4
    Special Price $37.63 Regular Price $53.99
    Out of stock
  39. Autolite Iridium XP Spark Plug
    4 pc Autolite Iridium XP Spark Plug for 2011-2013 Toyota Sienna 2.7L L4
    Special Price $37.63 Regular Price $53.99
    Out of stock
  40. Autolite Iridium XP Spark Plug
    4 pc Autolite Iridium XP Spark Plug for 2012-2017 Buick Verano 2.0L 2.4L L4
    Special Price $37.63 Regular Price $53.99
    Out of stock
  41. Autolite Iridium XP Spark Plug
    4 pc Autolite Iridium XP Spark Plug for 1971-1972 Ford Pinto 1.6L L4
    Special Price $37.85 Regular Price $53.99
    Out of stock
  42. Autolite Iridium XP Spark Plug
    4 pc Autolite Iridium XP Spark Plug for 1972-1976 Jensen Healey 2.0L L4
    Special Price $37.85 Regular Price $53.99
    Out of stock
  43. Autolite Iridium XP Spark Plug
    6 pc Autolite Iridium XP XP646 Spark Plug
    Special Price $39.83 Regular Price $56.99
  44. Autolite Iridium XP Spark Plug
    5 pc Autolite Iridium XP Spark Plug for 1992-1994 Audi S4
    Special Price $43.71 Regular Price $61.99
    Out of stock
  45. Autolite Iridium XP Spark Plug
    5 pc Autolite Iridium XP Spark Plug for 1983-1986 Audi Quattro
    Special Price $44.30 Regular Price $62.99
    Out of stock
  46. Autolite Iridium XP Spark Plug
    5 pc Autolite Iridium XP Spark Plug for 1995-1998 Acura TL 2.5L L5
    Special Price $44.66 Regular Price $63.99
    Out of stock
  47. Autolite Iridium XP Spark Plug
    6 pc Autolite Iridium XP Spark Plug for 2009-2019 Nissan 370Z 3.7L V6
    Special Price $50.71 Regular Price $71.99
    Out of stock
  48. Autolite Iridium XP Spark Plug
    6 pc Autolite Iridium XP Spark Plug for 1993-1998 Oldsmobile Achieva 3.1L
    Special Price $50.87 Regular Price $72.99
    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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