Fram XS85 Autolite Xtreme Sport Iridium Powersports Spark Plug

The Autolite XS85 Xtreme Sport Iridium is a performance spark plug engineered specifically for powersports engines. Built with an iridium-enhanced 0.6mm fine-wire center electrode and a tapered platinum ground electrode, it delivers a more focused ignition kernel, improved ignitability, and faster fuel combustion compared to standard spark plugs.

Key Features:

• Iridium-enhanced 0.6mm fine-wire center electrode for superior ignitability and reduced fouling versus standard plugs
• Tapered platinum ground electrode with Sport V-trim design for more efficient, smoother starts and increased horsepower
• Up to 26% quicker engine starts than a standard non-fine-wire spark plug (testing performed by independent lab)
• Up to 21% fewer hydrocarbon emissions than standard plugs, promoting better fuel efficiency
• High alumina multi-rib ceramic insulator for excellent thermal conductivity and superior insulation strength
• Engineered to meet or exceed OE design and withstand extreme combustion chamber operating temperatures
• Resistor design (4k Ohm) helps suppress ignition interference

Specifications:

• Thread Diameter: 14mm x 1.25mm pitch
• Reach: 0.374 in. (9.5mm)
• Hex Size: 13/16 in. (21mm)
• Seat Type: Flat (gasket)
• Pre-Set Gap: 0.034 in. (0.9mm)
• Center Electrode Tip: Iridium | Core: Copper
• Ground Electrode Tip: Platinum | Core: Nickel
• Terminal Type: Solid
• Heat Range: 5
• Resistor: Yes
• Center Electrode Projection: Mid Projection

Torque Specifications:

• Cast iron head: 26–29 lb-ft
• Aluminum head: 15–22 lb-ft

The Autolite XS85 is sold individually. Autolite, a brand under the FRAM Group with over 100 years in the ignition industry, backs this plug with a manufacturer warranty against defects.