Arnold E3.18 Spark Plug, 13/16 in Fill Gap, 0.551 in Thread

14 mm thread Dia, 3/4 in reach, 13/16 in hex socket. Quicker starts, Saves on fuel and reduces emissions. Replaces Champion N4C, N5C, N7YC, RN4C, RN5C, RN7YC. Replaces Autolite 403, 404, 4055, 4056, XST4055. Replaces NGK B4ES, B5EB, B5ES, BEV, B6EB, B6EB11, B6ES, B6ES11, B6EB, B7EB, B7EB11, BP7ES, BP7ES11, BPR7ES, BPR7ES11, BR4ES, BR5EB, BR5ES, BR6EB, BR6EB11, BR6ES, BR6ES11, BR7EB11, BUR7EA11, BUR7EB11.

Features

• Quicker starts, saves on fuel and reduces emissions
• Replaces champion N4C, N5C, N7YC, RN4C, RN5C, RN7YC
• Replaces NGK B4ES, B5EB, B5ES, BEV, B6EB, B6EB11, B6ES, B6ES11, B6EB, B7EB, B7EB11, BP7ES, BP7ES11, BPR7ES, BPR7ES11, BR4ES, BR5EB, BR5ES, BR6EB, BR6EB11, BR6ES, BR6ES11, BR7EB11, BUR7EA11, BUR7EB11
• Replaces Autolite 403, 404, 4055, 4056, XST4055

Additional Information

• Fill Gap Size: 13/16 in
• Hex Size: 13/16 in
• Thread Length: 3/4 in
• Thread Size: 0.551 in