Have Questions?
The AUTOLITE XS4302 Iridium Xtreme Sport Spark Plug is engineered to meet or exceed OE designs while withstanding the extreme operating temperatures experienced during powersports engine combustion. Its iridium-enhanced 0.6mm finewire design supports improved ignitability, faster fuel combustion and a more focused ignition compared with standard spark plugs.
According to AUTOLITE, the XS4302 can provide starts up to 26 percent quicker than standard plugs and produce as much as 21 percent less hydrocarbon emissions. These characteristics promote better fuel efficiency and horsepower, making this spark plug a performance-focused replacement for powersports engine applications.
Designed for dependable operation under demanding combustion conditions, the AUTOLITE XS4302 combines finewire construction with iridium enhancement to support consistent ignition performance. Refer to the appropriate application information to confirm suitability for your engine.
Features:
- OE-focused engineering: Designed to meet or exceed OE designs and withstand extreme operating temperatures experienced during powersports engine combustion.
- Iridium-enhanced finewire design: Uses a 0.6mm finewire electrode to support improved ignitability, faster fuel combustion and a more focused ignition than standard plugs.
- Quicker starts: Provides starts up to 26 percent quicker compared with standard plugs.
- Reduced hydrocarbon emissions: Produces as much as 21 percent less hydrocarbon emissions than standard plugs.
- Efficiency and horsepower support: The design promotes better fuel efficiency and horsepower.

