Sierra 18-7769 Carburetor Kit - Replaces Mercury 814481M - Yamaha 9.9 HP Outboard

The Sierra 18-7769 Carburetor Kit is a complete carburetor rebuild kit built to meet or exceed original equipment quality. It is designed as a direct replacement for Mercury 814481M and is used to restore proper carburetor function on applicable Yamaha 9.9 HP outboard engines within the serial number ranges listed below. The kit includes machined components sized to match the original carburetor assembly, making it suited for technicians and boat owners performing a carburetor rebuild rather than a full carburetor replacement.

Because carburetor performance directly affects starting, idle quality, and fuel metering, using a properly matched rebuild kit such as the 18-7769 helps restore consistent engine operation without the cost of a new carburetor. The kit is intended for the 9.9C outboard within the M-682-070796 & Up, ML-682-368040 & Up, E-682-251511 & Up, and EL-682-55146 & Up serial number ranges, so confirming the engine serial number before ordering is recommended.

Specifications

• Brand: Sierra
• Manufacturer Part Number: 18-7769
• Product Type: Carburetor Kit
• Fitment: Yamaha 9.9 HP (9.9C) outboard
• Serial Number Range: M-682-070796 & Up, ML-682-368040 & Up, E-682-251511 & Up, EL-682-55146 & Up
• Exterior Finish: Machined
• Weight: 0.07 pounds
• UPC: 808282244767

Fitment

• Yamaha 9.9C outboard, serial number M-682-070796 & Up
• Yamaha 9.9C outboard, serial number ML-682-368040 & Up
• Yamaha 9.9C outboard, serial number E-682-251511 & Up
• Yamaha 9.9C outboard, serial number EL-682-55146 & Up

Replaces (OEM)

• 814481M

Frequently Asked Questions

What does the Sierra 18-7769 Carburetor Kit fit? The 18-7769 kit fits the Yamaha 9.9C outboard within specific serial number ranges: M-682-070796 & Up, ML-682-368040 & Up, E-682-251511 & Up, and EL-682-55146 & Up. Checking your outboard's serial number against these ranges before ordering confirms proper fitment.

Is the Sierra 18-7769 a direct replacement for Mercury 814481M? Yes, the Sierra 18-7769 Carburetor Kit directly replaces Mercury 814481M.

How much does the 18-7769 carburetor kit weigh? The Sierra 18-7769 Carburetor Kit weighs 0.07 pounds.

Is this a genuine Sierra part or an aftermarket copy? The 18-7769 is a genuine Sierra-branded carburetor kit manufactured to meet or exceed original equipment quality, not a generic aftermarket copy.

What finish do the components in this kit have? Components in the Sierra 18-7769 Carburetor Kit have a machined exterior finish.

Does this kit include everything needed for a carburetor rebuild? The Sierra 18-7769 Carburetor Kit is supplied as a complete carburetor kit intended for rebuilding the applicable Yamaha 9.9C carburetor.

How is the 18-7769 different from the Sierra 18-7765 kit? The 18-7765 kit is a separate part number used for different Yamaha carbureted outboard applications and serial ranges than the 18-7769, so the two are not interchangeable; the correct kit depends on the engine's HP and serial number.

Can I confirm fitment by serial number alone? Yes, the 18-7769 kit's fitment is defined by outboard serial number ranges (M-682-070796 & Up, ML-682-368040 & Up, E-682-251511 & Up, EL-682-55146 & Up) for the Yamaha 9.9C, so matching your engine's serial number to these ranges confirms whether the 18-7769 is correct.

What is the UPC for the Sierra 18-7769 Carburetor Kit? The UPC for the Sierra 18-7769 Carburetor Kit is 808282244767.

Will installing this kit require special tools? The Sierra 18-7769 is a carburetor rebuild kit designed to be installed using standard carburetor service procedures for the Yamaha 9.9C outboard; no unusual tools are indicated for this kit.