Autolite - Racing Plug
High-performance racing spark plug engineered for optimal ignitability and durability.
Specification
Brand
Autolite
Item Number
AUTAR33
Center Electrode Core Material
Copper
Center Electrode Design
Standard
Center Electrode Tip Material
Nickel
Ground Electrode Core Material
Nickel
Ground Electrode Tip Design
Tapered
Ground Electrode Tip Material
Nickel
Hex Size
13/16 in (21 mm)
Thread Diameter
18 mm
Reach
0.460 in (11.7 mm)
Seat Type
Tapered
Pre-Gap Size
0.034 in (0.9 mm)
Resistor Type
No
Insulator Material
Ceramic
Center Electrode Projection
Short Projection
Description
The Autolite Racing Plug is designed for high-performance racing applications, featuring a cut-back ground electrode for optimal ignitability and better heat transfer, leading to quicker starts. Its yttrium-enhanced alloy enables up to an 8% reduction in ground wire temperature, accommodating performance modifications and intense conditions. The anti-corrosive nickel-plating prevents rusting, ensuring durability and efficiency. Additionally, the high alumina multi-rib ceramic insulator provides superior thermal conductivity and insulation, preventing flash-over and increasing strength.
Disclaimer
Ensure compatibility with your vehicle before purchase. Professional installation is recommended for optimal performance.