Autolite Xtreme Start Iridium Spark Plug XST3924

Description

Autolite Xtreme Start Iridium enhanced Spark plugs offer more focused ignition, quicker starts, less required voltage over the life of the plug, and improved emissions, compared to standard plugs.

Replaces:

• Champion RC12YC
• NGK BKR5ES, BKR5EY

Fits Country Clipper mowers with the following engines (may fit others):

• B&S (Twin) 15.5, 18, and 18.5 hp ELS OHV
• B&S 20, 22, & 26 hp ELS OHV (V-Twin)
• B&S 20 hp Professional Series (V-Twin)
• B&S 20 and 23 hp VAnguard (V-Twin)
• Kohler 16 and 17 hp OHV
• Kohler 16, 17, 18, and 22 hp Courage DOHC
• Kohler 18, 20, 22, 23, 25, 26, 27, & 28 hp (V-Twin)
• Kohler 23 & 27 hp Courage (V-Twin)
• Kohler 23, 24, & 27 hp Courage Pro (V-Twin)
• Kohler 23, 27 & 30 hp Command Pro (V-Twin)

Recommended Gap: 0.30