Sierra 18-99235 Johnson/Evinrude 3 Cylinder Stator, 6 Amp, Replaces 510839

The Sierra 18-99235 is a 3 cylinder, 6 amp stator built as a direct replacement for Johnson/Evinrude outboard charging systems. The stator is a core component of the outboard's ignition and charging circuit, generating the AC current that powers the engine's ignition system and battery charging as the flywheel rotates past it. When a stator fails or weakens, symptoms typically include a no-spark condition, intermittent misfires, or a battery that will not hold a charge from the outboard's charging system.

This stator is designed to fit Johnson/Evinrude Cross Flow outboard engines, covering both 2 cylinder 65, 70, and 75 HP models and 6 cylinder 150, 175, 200, and 235 HP models. It is a straightforward bolt-in replacement for the OEM stator, cross-referencing to several original Johnson/Evinrude part numbers so it can be ordered using either the OEM number or the Sierra part number 18-99235.

Specifications

• Brand: Sierra
• Manufacturer Part Number: 18-99235
• Category: Evinrude Outboard Stator
• Cylinder Count: 3 Cylinder
• Amperage: 6 Amp
• Weight: 2.1 pounds
• UPC: 808282394011

Fitment

• Johnson/Evinrude Cross Flow, 65, 70, 75 HP (2 cylinder), 1972-1978
• Johnson/Evinrude Cross Flow, 150, 175, 200, 235 HP (6 cylinder), 1976-1978

Replaces (OEM)

• 510839
• 581301
• 581114
• 580950
• 581235
• 763771

Frequently Asked Questions

What is the Sierra 18-99235 stator used for? The Sierra 18-99235 is a 3 cylinder, 6 amp stator that supplies the AC current for a Johnson/Evinrude outboard's ignition and charging system, replacing a worn or failed OEM stator.

Which OEM part numbers does the 18-99235 stator replace? It cross-references to Johnson/Evinrude OEM numbers 510839, 581301, 581114, 580950, 581235, and 763771.

Which outboard engines fit the Sierra 18-99235 stator? It fits Johnson/Evinrude Cross Flow outboards, including 65, 70, and 75 HP 2 cylinder models from 1972-1978 and 150, 175, 200, and 235 HP 6 cylinder models from 1976-1978.

How much does the Sierra 18-99235 weigh? The Sierra 18-99235 stator weighs 2.1 pounds.

How many amps does this stator produce? The 18-99235 is rated at 6 amps.

Is the Sierra 18-99235 an OEM or aftermarket part? It is a Sierra-branded aftermarket replacement stator, manufactured to cross-reference and install in place of the listed OEM Johnson/Evinrude part numbers.

What symptoms indicate a failing stator like the 18-99235? A failing stator on a Johnson/Evinrude outboard typically causes a no-spark or intermittent-spark condition, engine misfires, or a battery that stops receiving a charge from the outboard's charging system, all of which point to replacing the stator.

Can the 18-99235 be ordered using the OEM part number instead? Yes, since it cross-references to OEM numbers 510839, 581301, 581114, 580950, 581235, and 763771, it can be ordered as a replacement for any of those Johnson/Evinrude numbers.

Does the 18-99235 include mounting hardware? The dossier for the Sierra 18-99235 does not list included mounting hardware, so only the stator itself is confirmed as part of this listing.

What is the UPC for the Sierra 18-99235 stator? The UPC for the Sierra 18-99235 stator is 808282394011.