Sierra Stator 18-99287, Johnson/Evinrude 6/8 Cylinder Outboards, 35 Amp

The Sierra Stator, part number 18-99287, is a replacement ignition stator built for Johnson/Evinrude outboards with 6/8 cylinder powerheads. The stator is the charging component inside the flywheel that generates the AC current used by the engine's ignition and charging system, and this unit is rated for 35 amp output, matching the higher charging demand of 6 and 8 cylinder Johnson/Evinrude powerheads. Weighing 4 pounds, it is packaged in dimensions of 9 x 7 x 2.5 inches and is identified by UPC 808282395865. A failing or weak stator commonly shows up as inconsistent charging, a dead battery after running, or an intermittent no-spark condition, and replacing it with a correctly rated unit like the 18-99287 restores proper charging output for the powerhead it is designed for. Because output amperage and cylinder count are specific to the powerhead it was engineered for, buyers should confirm their outboard is a Johnson/Evinrude 6 or 8 cylinder model with a 35 amp charging requirement before ordering. This stator is sold as a standalone replacement component intended to be installed by a qualified marine technician or an experienced DIY outboard owner.

Specifications

• Brand: Sierra
• Manufacturer Part Number: 18-99287
• Fitment: Johnson/Evinrude, 6/8 Cylinder Outboards
• Amperage: 35 Amp
• Weight: 4 pounds
• Package Dimensions: 9 x 7 x 2.5 inches
• UPC: 808282395865

Fitment

• Johnson/Evinrude 6 Cylinder outboards
• Johnson/Evinrude 8 Cylinder outboards

Replaces (OEM)

• No verified OEM cross-reference numbers available

Frequently Asked Questions

What outboards does the Sierra 18-99287 stator fit? The Sierra 18-99287 stator is built for Johnson/Evinrude outboards with 6 or 8 cylinder powerheads.

What amperage does this stator produce? This stator, Sierra part number 18-99287, is rated for 35 amp output.

How much does the 18-99287 stator weigh? It weighs 4 pounds.

What are the package dimensions of the Sierra stator? The Sierra 18-99287 stator ships in a package measuring 9 x 7 x 2.5 inches.

What is the UPC for the Sierra 18-99287 stator? The UPC for this stator is 808282395865.

Does this stator work on 4 cylinder Johnson/Evinrude outboards? No, the 18-99287 is rated for 6/8 cylinder Johnson/Evinrude powerheads and their 35 amp charging requirement, not 4 cylinder models.

What does a stator do on an outboard motor? A stator sits inside the flywheel and generates the AC current that powers the ignition and charging system; the Sierra 18-99287 is the stator sized for Johnson/Evinrude 6/8 cylinder powerheads.

What are signs that the stator needs to be replaced? Inconsistent charging, a battery that drains after running, or an intermittent no-spark condition are common signs of a failing stator on Johnson/Evinrude 6/8 cylinder outboards, which the 18-99287 is designed to correct.

Is the Sierra 18-99287 a direct OEM replacement? It is sold as a replacement stator matched to the 35 amp output and 6/8 cylinder fitment of the applicable Johnson/Evinrude powerheads; no OEM cross-reference numbers are confirmed for this listing.

Who should install the 18-99287 stator? Installation should be performed by a qualified marine technician or an experienced DIY outboard owner familiar with flywheel and ignition component service.