Sierra 18-99247 Johnson Evinrude 4 Cylinder Stator, 6 Amp, Replaces 763772, 581225, 581046

The Sierra 18-99247 is a 4-cylinder, 6 amp stator built for Johnson and Evinrude outboards, supplying the charging current needed to keep the ignition and battery charging system running properly. This is a PP4-type stator designed as a direct electrical replacement for the original component on applicable Johnson/Evinrude powerheads, restoring reliable spark and charging output when the factory stator has failed or is producing weak output.

The stator fits Johnson/Evinrude 4-cylinder outboards rated 85, 115, 135, and 140 HP from the 1973-1977 model years. It is manufactured to match the electrical output and mounting configuration of the original equipment stator so it installs in place of the factory unit without modification. It cross-references directly to OEM part numbers 763772, 581225, and 581046, making it a straightforward swap for boaters replacing a worn or failed stator on these engines.

Specifications

• Brand: Sierra
• Manufacturer Part Number: 18-99247
• Category: Evinrude Outboard Stators
• Cylinders: 4
• Amperage: 6 Amp
• Type: PP4
• Engine Compatibility: Johnson/Evinrude 85, 115, 135, and 140 HP outboards, 1973-1977
• Weight: 2.4 pounds
• UPC: 808282394134

Fitment

• Johnson/Evinrude 85 HP, 1973-1977
• Johnson/Evinrude 115 HP, 1973-1977
• Johnson/Evinrude 135 HP, 1973-1977
• Johnson/Evinrude 140 HP, 1973-1977

Replaces (OEM)

• 763772
• 581225
• 581046

Frequently Asked Questions

What does the Sierra 18-99247 stator fit? The Sierra 18-99247 fits Johnson/Evinrude 4-cylinder outboards rated 85, 115, 135, and 140 HP from the 1973-1977 model years.

Is the 18-99247 a direct OEM replacement? Yes, Sierra 18-99247 is a direct replacement for OEM stators 763772, 581225, and 581046, matching the original electrical output and mounting for a bolt-in swap.

What OEM part numbers does this stator cross-reference? It replaces OEM part numbers 763772, 581225, and 581046 on applicable Johnson/Evinrude outboards.

How many amps does this stator produce? The 18-99247 is a 6 amp stator, matching the output of the original 4-cylinder Johnson/Evinrude PP4-type stator it replaces.

How much does the 18-99247 stator weigh? This stator weighs 2.4 pounds.

Will this stator work on a 2-cylinder or 6-cylinder Johnson/Evinrude outboard? No, the 18-99247 is built specifically for 4-cylinder Johnson/Evinrude outboards rated 85, 115, 135, and 140 HP; it is not designed for 2-cylinder or 6-cylinder powerheads.

What is a stator used for on an outboard motor? A stator, like the Sierra 18-99247, generates the AC current used by the ignition system and charging circuit as the flywheel rotates, keeping the engine's electrical system and battery charged.

Does the 18-99247 include mounting hardware? The listing covers the stator itself; check your original stator's hardware for reuse when installing the Sierra 18-99247 replacement.

Is the Sierra 18-99247 an aftermarket or genuine OEM part? The 18-99247 is a Sierra-brand aftermarket stator engineered to match the fit and output of the original Johnson/Evinrude equipment it replaces.

What year range does the 18-99247 cover? This stator covers the 1973-1977 model years on the applicable Johnson/Evinrude 85, 115, 135, and 140 HP outboards.

Can a failing stator cause charging or ignition problems? Yes, a worn stator like the one the Sierra 18-99247 replaces can cause weak charging output or ignition performance issues on affected Johnson/Evinrude outboards.