Boost your engine's reliability and efficiency with the Autolite Copper Spark Plug 3922, the industry standard for consistent performance across all riding conditions. Designed with a full copper core electrode, this plug offers superior thermal...

Keep your machine running at its peak with the Autolite Copper Spark Plug 4275, the ultimate choice for riders who refuse to compromise on ignition reliability. Featuring a full copper core electrode, this plug provides industry-leading conductivity and...

Keep your engine firing on all cylinders with the Autolite Copper Spark Plug 4265, a staple for riders who demand consistency and power. This plug is built with a full copper core electrode, providing industry-leading conductivity and superior heat...

Experience the gold standard of ignition performance with the Autolite Copper Spark Plug 4164, engineered to deliver unwavering reliability for your powersports machine. At the heart of this plug is a full copper core electrode that provides superior...

Ensure dependable engine performance with the Autolite Copper Spark Plug 4163, engineered for consistent ignition and long-lasting reliability. Its copper-glass seal bonds the insulator, terminal post and center electrode together, providing a 100%...

Boost engine performance and reliability with the Autolite Copper Spark Plug 4162, designed to deliver consistent ignition in all conditions. Its copper-glass seal bonds the insulator, terminal post and center electrode together, ensuring a gas-tight,...

Ignite reliable performance every time with the Autolite Copper Spark Plug 4123, engineered for precision and durability. Its copper-glass seal bonds the insulator, terminal post and center electrode together, ensuring a gas-tight, leak-proof connection...

Experience reliable ignition and peak engine performance with the Autolite Copper Spark Plug 4345. Designed with a full copper core electrode, this spark plug ensures consistent spark delivery for smoother starts, improved fuel efficiency and dependable...

Boost your engine’s performance and reliability with the Autolite Copper Spark Plug 4063. Featuring a full copper core electrode, this spark plug delivers consistent ignition, ensuring smooth starts, better fuel efficiency and dependable power...

Maximize engine performance and reliability with the Autolite Copper Spark Plug 4316. Engineered with a full copper core electrode, this spark plug delivers consistent ignition in all conditions, ensuring optimal power, fuel efficiency and smooth starts...

Upgrade your engine’s reliability with the Autolite Copper Spark Plug 4303, designed to deliver consistent ignition and superior performance. Its full copper core, paired with a copper-glass seal, ensures maximum voltage reaches the spark gap while...

Ensure dependable starts and smooth engine performance with the Autolite Copper Spark Plug 4302. Designed with a full copper core and copper-glass seal, it delivers maximum voltage to the spark gap while maintaining a 100% leak-proof, gas-tight seal. The...