Sierra Carburetor 18-7375N, Replaces 3310-864942A01, Fits 1998-2004 MCM 5.0L

The Sierra 18-7375N is a new-casting, non-remanufactured carburetor built for 1998-2004 MCM 5.0L marine engines. As a new casting rather than a remanufactured core, it eliminates the wear, corrosion, and prior-repair variability that can come with rebuilt units, giving you a fresh base for reliable fuel metering and consistent engine performance. A gasket is included with the carburetor; if a replacement is ever needed, Sierra specifies gasket 18-0994 as the correct part. For owners who prefer to rebuild an existing carburetor rather than replace it outright, Sierra also offers rebuild kit 18-7098-1 as the matching kit for this carburetor family.

This carburetor is designed specifically for 1998-2004 MCM 5.0L applications, so it is intended as a direct fitment replacement for engines in that range rather than a universal part. It cross-references to OEM numbers 3310-864942A01 and 3310-861448A1, making it a straightforward swap for boat owners and marine technicians replacing a failed, worn, or leaking original carburetor. Weighing 4.18 pounds, it ships ready to install with its included gasket.

Specifications

• Brand: Sierra
• Manufacturer Part Number: 18-7375N
• Product Type: Carburetor
• Construction: New casting, non-remanufactured
• Gasket Included: Yes (replacement gasket 18-0994)
• Recommended Rebuild Kit: 18-7098-1
• Fitment: 1998-2004 MCM 5.0L
• Weight: 4.18 pounds
• UPC: 808282339913
• Category: Engine Parts

Fitment

• 1998-2004 MCM 5.0L

Replaces (OEM)

• 3310-864942A01
• 3310-861448A1

Frequently Asked Questions

What engines does the Sierra 18-7375N carburetor fit? The Sierra 18-7375N carburetor is built for 1998-2004 MCM 5.0L engines.

Is the 18-7375N a remanufactured carburetor? No. The 18-7375N is a new casting, not a remanufactured unit, so it is not built on a used core.

What OEM part numbers does the 18-7375N replace? The 18-7375N cross-references to OEM numbers 3310-864942A01 and 3310-861448A1, making it a direct replacement for carburetors bearing those numbers on 1998-2004 MCM 5.0L engines.

Does the 18-7375N come with a gasket? Yes, a gasket is included with the 18-7375N carburetor. If a replacement is ever needed, use gasket 18-0994.

How much does the 18-7375N carburetor weigh? The Sierra 18-7375N weighs 4.18 pounds.

Can the 18-7375N be rebuilt instead of replaced? Yes. For engines using this carburetor, Sierra offers rebuild kit 18-7098-1 as the matching kit if you prefer to rebuild rather than replace the unit.

Is the 18-7375N a genuine Sierra part or an aftermarket copy? The 18-7375N is a genuine Sierra Marine part, sold under the Sierra brand with the part number 18-7375N.

What is the difference between the 18-7375N and the 18-7370N carburetors? The 18-7375N is fitted to 1998-2004 MCM 5.0L engines and cross-references 3310-864942A01 and 3310-861448A1, while the 18-7370N is a different carburetor fitted to MCM 120/2.5L and 140/3.0L engines with its own separate set of OEM cross-reference numbers.

What is included when I order the 18-7375N carburetor? Ordering the Sierra 18-7375N includes the carburetor itself along with an included gasket for installation.

Will the 18-7375N work on engines outside the 1998-2004 MCM 5.0L range? The 18-7375N is specified for 1998-2004 MCM 5.0L engines; fitment outside that stated range is not confirmed.

What category of part is the Sierra 18-7375N? The 18-7375N is listed as an engine part, specifically a carburetor, for 1998-2004 MCM 5.0L applications.