Sierra Stator 18-5856-1, Replaces Mercury Marine 398-5255, Fits Mercury 40 HP 2 Cylinder Outboards

The Sierra Stator 18-5856-1 is an electrical charging component built to meet or exceed original equipment quality for compatible Mercury outboard engines. It is engineered as a direct equivalent to the original Mercury Marine stator, generating the AC current the engine's ignition and charging system relies on. Built with marine-grade components suited for both saltwater and freshwater use, this stator is designed for electric start, transom mount outboard applications.

This stator is intended for a Mercury 40 HP 2 cylinder outboard within the serial number range 3859435 to 5823917. Confirm your engine's serial number falls within this range before ordering, since electrical components like stators are fit specific and the wrong stator will not charge or fire the engine correctly.

Specifications

• Brand: Sierra
• Manufacturer Part Number: 18-5856-1
• Product Type: Stator
• Engine Type: 4 Stroke
• Operation Mode: Electric
• Mounting Type: Transom Mount
• Fuel Type: Gasoline
• Recommended Use: Salt Water
• Fitment: Mercury 40 HP 2 Cylinder outboard, serial numbers 3859435-5823917
• Weight: 0.9 pounds

Fitment

• Mercury 40 HP 2 Cylinder outboard, serial numbers 3859435 to 5823917

Replaces (OEM)

• CDI 174-5255
• Mercury 398-5255

Frequently Asked Questions

What engine does the Sierra 18-5856-1 stator fit? This stator fits a Mercury 40 HP 2 cylinder outboard within serial number range 3859435 to 5823917. Check your engine's serial number tag to confirm it falls in this range before ordering.

Is the Sierra 18-5856-1 stator compatible with Mercury part 398-5255? Yes, the 18-5856-1 stator is built as a direct equivalent to Mercury Marine part number 398-5255 and is also cross-referenced to CDI 174-5255.

Does this stator work with electric start outboards? Yes, the Sierra 18-5856-1 stator is designed for electric start, transom mount Mercury 40 HP 2 cylinder outboard applications.

How much does the 18-5856-1 stator weigh? The Sierra 18-5856-1 stator weighs 0.9 pounds.

Can this stator be used in saltwater? Yes, the 18-5856-1 stator is built with marine-grade components recommended for salt water use.

Is the Sierra 18-5856-1 an OEM or aftermarket part? It is a Sierra aftermarket stator engineered to meet or exceed the quality of the original equipment Mercury Marine 398-5255 stator it replaces.

What fuel type engine is this stator designed for? The 18-5856-1 stator is designed for gasoline-fueled outboard engines.

Will this stator fit any Mercury 40 HP outboard? No, the 18-5856-1 stator is fit specific to a Mercury 40 HP 2 cylinder outboard within serial numbers 3859435 to 5823917, so confirm your engine's serial number before purchasing.

What mounting type is the 18-5856-1 stator built for? This stator is built for transom mount outboard configurations.

What operation mode does this stator support? The Sierra 18-5856-1 stator supports electric operation mode.