Description
SIERRA 9A Stator for Mercury/Mariner 50-70 HP 3-Cylinder – 18-5865 is a replacement charging/ignition stator for specified Mercury and Mariner three-cylinder outboards.
The 9-amp stator supplies electrical output used by the engine ignition/charging system on the cataloged 50-70 HP applications.
Key Features
- 9-amp stator output rating
- Fits selected Mercury/Mariner 50-70 HP outboards
- Cataloged for three-cylinder two-stroke engine families
- Restores stator-generated ignition/charging electrical output
- Replaces Mercury 398-5704A2, A5 and A7
Specifications
- Manufacturer Part Number: 18-5865
- Product Type: Stator
- Output Rating: 9 A
- Engine Family: Mercury/Mariner 3-cylinder two-stroke
- Horsepower Range: selected 50-70 HP
Interchange / Cross Reference
- Mercury 398-5704A2
- Mercury 398-5704A5
- Mercury 398-5704A7
- Mallory 9-25506
- CDI 174-5454K1
Match the engine serial range and original stator part number before ordering; electrical returns should be diagnosed before installation.

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