Autolite AR33 Racing Spark Plug 18mm Thread Tapered Seat — High Performance Ignition

SKU: BBRQ_AR33
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Car Wheel Size Chart

Wheel Diameter (inches) Tire Width (mm) Aspect Ratio Rim Width (inches)
14185655.5
15195606.0
16205556.5
17215507.0
18225457.5
19235408.0
20245358.5

Note: Wheel and tire sizes vary by car make and model. Always consult your vehicle’s manufacturer for exact specifications.

How to Read Tire Size

Example: 225/45R17 means:

  • 225 = Tire width in mm
  • 45 = Aspect ratio (height as % of width)
  • R17 = Rim diameter in inches

Product Details

Product Description
Part Numbers
Sizing & Fit

About Autolite

Autolite engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Autolite lineup with fast shipping and expert fitment support — order with confidence.

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Heavy-Duty Ignition: Autolite AR33 Racing Spark Plugs

For engines requiring an 18mm thread, the Autolite AR33 Racing Spark Plug offers the robust performance needed for high-stakes racing. This non-resistor spark plug is specifically designed for maximum energy delivery, ensuring that your fuel-air mixture ignites completely for superior power output. With a 0.460-inch reach and a tapered seat, it provides a secure fit and excellent thermal management for larger-bore or high-performance cylinder heads.

Key Technical Specifications:

  • Thread Size: 18mm
  • Reach: 0.460 inches
  • Seat Type: Tapered
  • Resistor Type: Non-Resistor
  • Application: High-Performance Racing

The AR33 is a staple for racers who demand reliability and raw performance. The non-resistor design ensures that there is no resistance in the spark path, allowing for a hotter, more efficient spark that is essential for high-compression racing engines. The tapered seat design facilitates quick and easy installation while maintaining a tight seal against the combustion chamber. Whether you are running a classic high-performance engine or a modern racing build, the Autolite AR33 delivers the consistent firing necessary to keep your engine running at its peak. Trust your ignition needs to the experts at GGCRACING.

Product Details

Product Description
Part Numbers
Sizing & Fit

About Autolite

Autolite engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Autolite lineup with fast shipping and expert fitment support — order with confidence.

Watch in action

Heavy-Duty Ignition: Autolite AR33 Racing Spark Plugs

For engines requiring an 18mm thread, the Autolite AR33 Racing Spark Plug offers the robust performance needed for high-stakes racing. This non-resistor spark plug is specifically designed for maximum energy delivery, ensuring that your fuel-air mixture ignites completely for superior power output. With a 0.460-inch reach and a tapered seat, it provides a secure fit and excellent thermal management for larger-bore or high-performance cylinder heads.

Key Technical Specifications:

  • Thread Size: 18mm
  • Reach: 0.460 inches
  • Seat Type: Tapered
  • Resistor Type: Non-Resistor
  • Application: High-Performance Racing

The AR33 is a staple for racers who demand reliability and raw performance. The non-resistor design ensures that there is no resistance in the spark path, allowing for a hotter, more efficient spark that is essential for high-compression racing engines. The tapered seat design facilitates quick and easy installation while maintaining a tight seal against the combustion chamber. Whether you are running a classic high-performance engine or a modern racing build, the Autolite AR33 delivers the consistent firing necessary to keep your engine running at its peak. Trust your ignition needs to the experts at GGCRACING.

Product Details

Product Description

About Autolite

Autolite engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Autolite lineup with fast shipping and expert fitment support — order with confidence.

Watch in action

Heavy-Duty Ignition: Autolite AR33 Racing Spark Plugs

For engines requiring an 18mm thread, the Autolite AR33 Racing Spark Plug offers the robust performance needed for high-stakes racing. This non-resistor spark plug is specifically designed for maximum energy delivery, ensuring that your fuel-air mixture ignites completely for superior power output. With a 0.460-inch reach and a tapered seat, it provides a secure fit and excellent thermal management for larger-bore or high-performance cylinder heads.

Key Technical Specifications:

  • Thread Size: 18mm
  • Reach: 0.460 inches
  • Seat Type: Tapered
  • Resistor Type: Non-Resistor
  • Application: High-Performance Racing

The AR33 is a staple for racers who demand reliability and raw performance. The non-resistor design ensures that there is no resistance in the spark path, allowing for a hotter, more efficient spark that is essential for high-compression racing engines. The tapered seat design facilitates quick and easy installation while maintaining a tight seal against the combustion chamber. Whether you are running a classic high-performance engine or a modern racing build, the Autolite AR33 delivers the consistent firing necessary to keep your engine running at its peak. Trust your ignition needs to the experts at GGCRACING.

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