Sierra Stator 18-5876-1 for Mercury 105 HP Jet Outboard Motors

The Sierra Stator 18-5876-1 is a replacement charging-system stator built for Mercury 105 HP Jet outboard motors within the D082000 through G960499 serial number range. The stator is the stationary charging component mounted around the flywheel that generates the AC current used to keep the battery charged and power the ignition system while the engine runs; when it fails, the outboard can lose charging output, run rough, or fail to keep a battery topped off, so this component is a common wear-and-replace item on older Mercury outboards. This unit ships as a complete stator assembly ready to install in place of the original equipment part. It weighs 5.27 pounds. Sierra manufactures marine electrical and ignition components as a direct aftermarket alternative to OEM Mercury parts, so this stator is built to match the fit, output, and mounting of the original unit it replaces. Confirm your outboard's model and serial number falls within the D082000 to G960499 range for the 105 HP Jet application before ordering, since Mercury used different stator part numbers across other horsepower ratings and serial ranges in this engine family.

Specifications

• Brand: Sierra
• Manufacturer Part Number: 18-5876-1
• Product Type: Stator
• Weight: 5.27 pounds
• Included Components: Stator
• UPC: 808282392444

Fitment

• Mercury 105 HP Jet outboard, serial numbers D082000 through G960499

Frequently Asked Questions

What does the Sierra 18-5876-1 stator fit? This stator fits Mercury 105 HP Jet outboard motors with serial numbers falling between D082000 and G960499. Check your outboard's serial number tag before ordering to confirm it falls within that range.

What does a stator do on an outboard motor? A stator is the stationary charging coil assembly mounted around the flywheel that generates AC current to charge the battery and supply power to the ignition system while the engine is running. The 18-5876-1 stator is a direct replacement for this component on the Mercury 105 HP Jet application it covers.

How much does the Sierra 18-5876-1 stator weigh? It weighs 5.27 pounds as shipped.

Is this a genuine Mercury part or an aftermarket replacement? The 18-5876-1 is a Sierra-brand aftermarket stator, manufactured as a direct replacement for the Mercury outboard charging system rather than a Mercury-branded original part.

What is included when I order the 18-5876-1? The order includes one Sierra stator (part number 18-5876-1) ready to mount in place of the original unit.

Will this stator work on other Mercury horsepower ratings? No. The 18-5876-1 stator is specified for the Mercury 105 HP Jet outboard within the D082000 to G960499 serial range only; other Mercury horsepower ratings and serial ranges use different Sierra stator part numbers.

How do I know if my stator has failed and needs replacement? Common symptoms of a failing outboard stator include a battery that will not stay charged, weak or intermittent spark, or erratic engine performance at speed, since the stator supplies both charging current and ignition power.

Does installing the 18-5876-1 stator require removing the flywheel? Yes, replacing a stator on an outboard typically requires removing the flywheel to access the stator mounted beneath it, since the stator sits stationary around the flywheel's magnets.

Is the Sierra 18-5876-1 stator serial-number specific? Yes. Mercury changed stator part numbers across production, so the 18-5876-1 is designated specifically for units within the D082000 to G960499 serial range on the 105 HP Jet application.

Can I cross-reference the 18-5876-1 to an OEM Mercury part number? No verified OEM Mercury cross-reference number is published for the Sierra 18-5876-1 stator; fitment is confirmed by the Mercury 105 HP Jet application and D082000 to G960499 serial range rather than a direct OEM number match.