Autolite XST255DP Xtreme Start Iridium Lawn and Garden Spark Plug

The Autolite XST255DP Xtreme Start is a premium iridium spark plug engineered specifically for lawn and garden and outdoor power equipment. Designed as a direct OE-quality replacement, it delivers faster, more consistent starts and improved efficiency compared to standard copper plugs.

Key Features:

• Iridium-Enhanced Fine-Wire Center Electrode: A 0.6mm iridium finewire tip enables up to 26% quicker engine starts versus standard copper plugs, reducing pull-cord effort and battery/starter wear
• Yttrium-Enhanced Ground Electrode: Provides superior heat transfer for increased durability under high temperatures and pressure, extending plug life
• High Alumina Multi-Rib Ceramic Insulator: Delivers exceptional thermal conductivity and electrical insulation for added strength and long-term reliability
• Exceptional Fouling Resistance: Fine-wire technology lowers required firing voltage, promoting reliable starts in any season or weather condition
• Improved Fuel Efficiency: Up to 21% fewer HC emissions than a standard plug, contributing to better fuel efficiency and horsepower
• OE Quality and Performance: Designed to meet or exceed original equipment design standards

Specifications:

• Thread Diameter: 14mm
• Hex Size: 3/4 in. (19mm)
• Reach: 3/8 in. (9.5mm)
• Seat Type: Flat (Gasket)
• Pre-Gap Size: 0.030 in. (0.80mm)
• Center Electrode Tip: Iridium Fine Wire
• Ground Electrode Tip: Platinum Tapered
• Insulator Type: Short Projection Ceramic
• Terminal Type: Non-Removable Nut
• Resistor: No

The Autolite XST255DP Xtreme Start iridium spark plug is the go-to upgrade for keeping your outdoor power equipment running at its best, season after season.