Replacement racing spark plug used by many professional car drivers. Specially engineered with a cooler thermal range than factory plugs, allowing for performance modifications and handling in harsh conditions. Contains Yttrium reinforced alloy to reduce side wire temperature by up to 8% for durability and reduced ignition. Features a cut-background electrode to improve the ignitability of the flame kernel. Coated with anti-rust nickel plating to prevent rust. Compatible type: For vehicle only

Autolite Spark Plug AR3911 Nickel Plated Shell, Racing Applications Since its inception in Autolite automotive aftermarket and original equipment manufacturers, the brand has been providing the highest quality ignition products. As our spark plug and ignition wire set includes coil-on-plug, Autolite brand products are the perfect choice for ignition in all your vehicles, no matter how you install them. Autolite spark plug AR3911 nickel plated shell, racing application features. Product Type: Non-Resistive Thermal Range Graph Position: Pre-race "HEX: 5/8" Reach: 3/4" Device: Non-Resistor/Non-Resistor/Sheet: Gasket Thread Diameter: 14mm Chip: Main Application Running: Chevrolet Big Block, HEMI (Racing)


Manufacturer: ‎Autolite
Brand: ‎Autolite
Model Name: ‎AR3911-4PK
Product Size: ‎8.59 x 10.16 x 2.54 cm; 200 g
Product model number: ‎AR3911-4PK
Product dimensions Depth x Width x Height: 8.6 x 10.2 x 2.5 cm
Product weight: ‎200 g