SIERRA Stator for Mercury/Mariner Outboards – 18-5857

Description

SIERRA Stator for Mercury/Mariner Outboards – 18-5857 is a replacement under-flywheel stator for select Mercury and Mariner outboard charging/ignition systems. The stator is a critical fixed winding assembly that supplies electrical output as the flywheel magnets rotate past it.

Stator fitment is highly dependent on engine model and serial range, so the existing OEM number should be checked before ordering. This part is intended to replace the listed Mercury 398-5454A-series stators rather than serving as a universal Mercury stator.

Key Features

• Replacement under-flywheel stator assembly
• For select Mercury and Mariner outboard applications
• Replaces Mercury 398-5454A2 and 398-5454A7 references
• Cross-references Mallory 9-25502
• Designed for repair of the engine charging/ignition stator circuit

Specifications

• Sierra part number: 18-5857
• Product type: Outboard stator
• Engine brand: Mercury / Mariner
• Mounting location: Under flywheel
• Fitment method: Match OEM number and engine serial range

Interchange

• Mallory: 9-25502
• Mercury Marine: 398-5454A2, 398-5454A7