Champion 861s J19lm Copper Spark Plug, 0.813 In. Hex

The Champion J19LM is a copper spark plug designed for small 4-cycle engines found in lawn mowers, garden equipment, and other outdoor power tools. This spark plug delivers reliable ignition performance for equipment from brands including Skibbe, Selbro, Roto-Hoe, Royer, Scag, and Heald.

The Champion J19LM provides the precise spark generation needed to keep small engines running efficiently. Its copper core center electrode and advanced design elements work together for dependable performance in small engine applications.

Features and Benefits

• Copper Core Center Electrode: Allows accurate control of heat range, optimizing performance and longevity in small 4-cycle engines.
• Extra-Hard Ceramic Insulator: Dense ceramic construction ensures flawless functioning with high-energy ignition systems while maintaining accurate heat ranges.
• Semiconductor Resistor: Removes RFI interference from on-board electronics, assuring maximum spark plug life and reliable engine performance.
• Corrosion-Protected Shell: Zinc-plated shell with TinTac and Ultraseal process provides corrosion protection and eliminates the need for anti-seize compound during installation.
• Ready-to-Use: Comes in a service pack format, making replacement quick and convenient during routine equipment servicing.

Specifications

• Brand: Champion
• Model: J19LM (861S)
• Hex Size: 0.813 in.
• Thread Size: 0.551 in.
• Gap Range: 0.027 to 0.033 in.
• Electrode Type: Copper core center electrode with nickel alloy electrodes
• Shell: Zinc-plated with TinTac and Ultraseal process