Sierra 18-0849 Fuel Pump Mounting Gasket - Replaces Yamaha 650-24431-A0-00 - Fits Four-Stroke 9.9-300 HP Outboards, 1999-Current

The Sierra 18-0849 is a fuel pump mounting gasket engineered as a direct-fit replacement for Yamaha four-stroke outboard motors. It seals the mating surface between the fuel pump and its mounting point on the engine block, maintaining the seal needed to keep fuel flowing cleanly to the carburetor or fuel system without leaks, air intrusion, or pressure loss. A worn, cracked, or compressed original gasket is a common source of fuel pump seepage and rough running, and replacing it with the correctly sized 18-0849 restores a proper seal at a fraction of the cost of a new fuel pump assembly.

This gasket is designed to fit Yamaha Four-Stroke outboards from 9.9 hp through 300 hp, model year 1999 and newer. It cross-references directly to Yamaha OEM gasket and fuel pump numbers, so it installs in place of the original part without modification. Each unit ships as a single gasket, making it a simple, low-cost addition to a fuel pump service or rebuild kit for these outboards.

Specifications

• Brand: Sierra
• Manufacturer Part Number: 18-0849
• Product Type: Fuel Pump Mounting Gasket
• Package Quantity: 1
• Weight: 0.01 pounds
• UPC: 808282291204
• Fitment: Yamaha Four-Stroke outboards, 9.9 hp - 300 hp, 1999 and newer
• OEM Cross-Reference: 904-30142-28-00, 90430-14228-00, 650-24431-A0-00

Fitment

• Yamaha Four-Stroke outboards, 9.9 hp to 300 hp, 1999 and newer (Current)

Replaces (OEM)

• 904-30142-28-00
• 90430-14228-00
• 650-24431-A0-00

Frequently Asked Questions

What engines does the Sierra 18-0849 fuel pump mounting gasket fit? It fits Yamaha Four-Stroke outboards ranging from 9.9 hp to 300 hp, model year 1999 and newer.

Is the Sierra 18-0849 a direct replacement for Yamaha part 650-24431-A0-00? Yes, the 18-0849 gasket cross-references directly to Yamaha 650-24431-A0-00 and installs as a direct replacement.

What OEM Yamaha numbers does part 18-0849 cross-reference? Sierra 18-0849 cross-references Yamaha numbers 904-30142-28-00, 90430-14228-00, and 650-24431-A0-00.

How many gaskets come in one order of 18-0849? Each order of the Sierra 18-0849 fuel pump mounting gasket includes a package quantity of 1 gasket.

How much does the 18-0849 gasket weigh? The Sierra 18-0849 fuel pump mounting gasket weighs 0.01 pounds.

What does the fuel pump mounting gasket do? It seals the joint between the fuel pump and its mounting surface on the Yamaha outboard engine block, preventing fuel or air leaks at that connection.

Is Sierra 18-0849 an OEM part or an aftermarket replacement? The 18-0849 is a Sierra-branded aftermarket gasket manufactured to replace the equivalent Yamaha OEM gasket.

Will 18-0849 fit a Yamaha outboard built before 1999? The Sierra 18-0849 gasket is specified to fit Yamaha Four-Stroke outboards from model year 1999 and newer.

What is the UPC for the Sierra 18-0849 gasket? The UPC for Sierra fuel pump mounting gasket 18-0849 is 808282291204.

When should I replace the fuel pump mounting gasket on my Yamaha outboard? Replace the 18-0849 gasket whenever the fuel pump is removed for service or if fuel seepage is visible at the pump mounting joint on a compatible Yamaha Four-Stroke outboard.