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Champion 841 J8C OMC Johnson Evinrude Mercury Outboard 14mm Plus Spark Plug
- 14mm Thread OMC Johnson Evinrude Mercury Outboard Copper Plus Spark Plug
- Shell
- Thread Size: 14mm
- Seat Type: Gasket
- Reach: 9.5mm (3/8")
- Hex Size: 13/16" (21mm)
- Terminal Type: Removable Nut
- Gap: .030" (0.75mm)
- Conventional Spark Plug with Nickel Alloy Electrodes.
- Copper Core Center Electrode Allows for Increased Conductivity and Heat Control.
- Manufacturer: Champion
- Model Number: 841
- Part Number: J8C
- Also Known As: XST458DP, B6S, AC Delco M44C, Autolite XST458, Bosch W145T3
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