Sierra 18-7093 Needle & Seat Assembly for Johnson/Evinrude Outboard Motors, Replaces OMC 378895/396521/678882

The Sierra 18-7093 Needle & Seat is a carburetor fuel-metering assembly designed for Johnson/Evinrude outboard motors. This assembly regulates the flow of fuel into the carburetor bowl, controlling fuel level to maintain correct air/fuel mixture and prevent flooding or fuel starvation. A worn or pitted needle and seat is a common cause of rough idling, flooding, or hard starting in outboard engines, and replacing this assembly restores proper fuel metering to the carburetor.

Each package includes one complete needle and seat assembly. As with all Sierra parts, the 18-7093 is built to meet or exceed the specification of the original equipment part it replaces, making it a direct functional substitute for the OEM needle and seat in applicable Johnson/Evinrude outboard carburetors.

Specifications

• Brand: Sierra
• Manufacturer Part Number: 18-7093
• Item Type: Needle & Seat
• Engine Type: Outboard
• Fuel Type: Gasoline
• Mounting Type: Engine Mount
• Color: Multicoloured
• Unit Count: 1 count
• Included Components: Needle & Seat
• Weight: 0.01 pounds
• UPC: 808282230432

Replaces (OEM)

• OMC 378895
• OMC 396521
• OMC 678882
• Mallory 9-36801
• GLM 40710
• EMP 1300-01411

Frequently Asked Questions

What does the Sierra 18-7093 needle and seat do? It regulates fuel flow into the carburetor bowl on Johnson/Evinrude outboard motors, controlling fuel level to keep the air/fuel mixture correct and prevent flooding or fuel starvation.

Is the 18-7093 a genuine OEM part or aftermarket? The 18-7093 is a Sierra aftermarket replacement part, manufactured to meet or exceed the specification of the original OMC equipment it replaces.

Which OEM part numbers does the Sierra 18-7093 replace? It replaces OMC part numbers 378895, 396521, and 678882.

Does the 18-7093 cross over to any other aftermarket brands? Yes, the Sierra 18-7093 is interchangeable with Mallory 9-36801, GLM 40710, and EMP 1300-01411.

What engines does the Sierra 18-7093 fit? It is designed for Johnson/Evinrude outboard motors.

What is included in the package? One complete needle and seat assembly is included per package of the Sierra 18-7093.

How much does the 18-7093 needle and seat weigh? The Sierra 18-7093 needle and seat assembly weighs 0.01 pounds.

What symptoms indicate the needle and seat needs replacement? Rough idling, flooding, or hard starting on a Johnson/Evinrude outboard can indicate a worn or pitted needle and seat, which the 18-7093 is designed to correct.

What type of fuel is the 18-7093 rated for? The Sierra 18-7093 is rated for use with gasoline fuel systems.

How is the needle and seat mounted in the carburetor? The 18-7093 uses an engine-mount type fitting within the carburetor assembly on the outboard motor.