Sierra Stator 18-99310 for Johnson Evinrude 6 Cylinder Outboard Engines, 10 Amp, Cross-Reference CDI Electronics 173-1867

The Sierra 18-99310 stator is a replacement charging component built for Johnson and Evinrude 6 cylinder outboard engines. As part of the engine's ignition and charging system, the stator generates the AC current used to charge the battery and power the ignition, and a worn or failed stator is a common cause of no-charge or hard-starting complaints on 6 cylinder OMC-family outboards. This unit is rated at 10 amp output, matching the charging capacity of the original component it replaces. It is functionally equivalent to the CDI Electronics 173-1867 stator, so buyers who have cross-shopped that part number can use the Sierra 18-99310 as a direct equivalent. The stator weighs 2.4 pounds as shipped. Installation follows standard outboard stator replacement procedure: the flywheel is removed to access the stator mounted beneath it, the old unit is unbolted and disconnected, and the new stator is bolted in place and reconnected to the engine's wiring harness. Always verify cylinder count and charging amperage against your engine's original stator before ordering to ensure correct fit.

Specifications

• Brand: Sierra
• Manufacturer Part Number: 18-99310
• Fits: Johnson/Evinrude 6 Cylinder Outboard Engines
• Amperage: 10 Amp
• Weight: 2.4 pounds
• UPC: 808282395919
• Cross Reference: CDI Electronics 173-1867

Fitment

• Johnson/Evinrude 6 Cylinder outboard engines

Replaces (OEM)

• CDI Electronics 173-1867

Frequently Asked Questions

What engines does the Sierra 18-99310 stator fit? The Sierra 18-99310 is built for Johnson and Evinrude 6 cylinder outboard engines.

How many amps does this stator put out? 18-99310 is rated at 10 amp charging output, matching the original stator it replaces on 6 cylinder Johnson/Evinrude outboards.

Is the Sierra 18-99310 the same as the CDI Electronics 173-1867? Yes, the Sierra 18-99310 is a direct cross-reference equivalent to CDI Electronics part number 173-1867.

How much does the 18-99310 stator weigh? This stator weighs 2.4 pounds.

What is the UPC for the Sierra 18-99310 stator? The UPC for the Sierra 18-99310 stator is 808282395919.

Will this stator work on a 4 cylinder or V6 Johnson/Evinrude outboard? 18-99310 is designated for 6 cylinder Johnson/Evinrude outboard engines; confirm your engine's cylinder count and original amperage rating before ordering, since stators differ by cylinder count and output.

Is the stator sold as a genuine Sierra part or an aftermarket part? The 18-99310 is a Sierra-branded replacement stator, sold under the Sierra part number and cross-referenced to CDI Electronics 173-1867.

What symptoms indicate a failed stator on a Johnson/Evinrude outboard? A failing stator on these 6 cylinder outboards typically causes weak or no battery charging and can contribute to ignition and starting problems, which is the main reason boaters replace the 18-99310.

What is included when I order part number 18-99310? Ordering 18-99310 includes one Sierra replacement stator for a 6 cylinder Johnson/Evinrude outboard.

Does replacing the stator require removing the flywheel? Yes, on Johnson/Evinrude 6 cylinder outboards the flywheel must be removed to access and replace the stator, part number 18-99310.

Can I use CDI Electronics 173-1867 as a search reference to find this part? Yes, CDI Electronics 173-1867 is the cross-reference number for the Sierra 18-99310 stator, so either number will identify the same replacement part.