Discover the ultimate in high-performance ignition with the Autolite AR25 High Performance Racing Resistor Spark Plug, now available at Partshawk.com. Engineered for excellence, this Autolite spark plug is designed to meet the rigorous demands of professional racing, making it the perfect choice for both B2C and B2B customers seeking superior performance and reliability. Featuring a copper core center electrode and a nickel tip, the Autolite AR25 ensures optimal conductivity and durability, while its tapered ground electrode design enhances ignition efficiency. The Autolite AR25 spark plug boasts a 5/8" hex size and a mid-projection ceramic insulator, providing a perfect fit for a wide range of vehicles. With a pre-gap size of 0.044 inches and a resistance of 4000 ohms, this resistor-type spark plug guarantees consistent performance under extreme conditions. Whether you're a professional racer or an automotive enthusiast, the Autolite AR25 offers OE form, fit, and function at a value price, making it the best alternative to original equipment spark plugs. Autolite is a trusted name in the automotive aftermarket and original equipment manufacturing, known for delivering high-quality ignition products. Upgrade your vehicle's performance with the Autolite AR25 High Performance Racing Resistor Spark Plug and experience the difference that precision engineering and premium materials can make. Shop now at Partshawk.com and give your engine the spark it deserves!

Autolite Racing® Hi-Performance Spark Plugs are the ultimate racing plug designed for performance and used by professional car drivers. Autolite® spark plugs are the best alternative to OE spark plugs, offering OE form, fit and function for all makes and models, both foreign and domestic, at a value price. Autolite provides the automotive aftermarket and original equipment manufacturers with the highest quality ignition products and is the leading supplier of spark plugs.

• Experience unmatched performance with the Autolite AR25 High Performance Racing Resistor Spark Plug, featuring a copper core and nickel tip for superior conductivity and durability.
• Designed for professional racing, this spark plug boasts a standard center electrode and a tapered ground electrode, ensuring optimal ignition and enhanced engine efficiency.
• With a 5/8" hex size and a mid-projection ceramic insulator, the Autolite AR25 offers easy installation and reliable performance under extreme conditions.
• Perfect for both foreign and domestic vehicles, this high-performance spark plug provides OE form, fit, and function at a value price, making it an ideal choice for automotive enthusiasts and professionals alike.
• Trust in Autolite, the leading supplier of spark plugs, to deliver top-quality ignition products that meet the rigorous demands of the automotive aftermarket and original equipment manufacturers.

Center Electrode Core Material:	Copper
Center Electrode Design:	Standard / Regular
Center Electrode Tip Material:	Nickel
Electrical Terminal Type:	Stud
Ground Electrode Core Material:	Nickel
Ground Electrode Quantity:	1
Ground Electrode Tip Design:	Tapered
Ground Electrode Tip Material:	Nickel
Hex Size:	5/8"
Hex Size:	16
Insulator Material:	Ceramic
Insulator Type:	Mid Projection
Pre-Gap Size:	0.044
Pre-Gap Size:	1.10
Reach:	0.433
Reach:	11.0
Resistance:	4000
Resistor Type:	Yes
Seat Type:	Tapered
Thread Diameter:	14.0

• Champion Spark Plug: 18
• NGK: 6630