Sierra Carburetor 18-7370N, Replaces 3310-864942A01 and 3310-861448A1, for 1998-2004 MCM 5.0L

The Sierra 18-7370N is a complete replacement carburetor built for 1998-2004 MCM 5.0L marine engines. It is manufactured as an all-new anodized aluminum casting rather than a remanufactured unit, eliminating the reliability concerns that come with rebuilding older red-cast carburetors after years of exposure to the harsh marine environment. Each unit is flow tested throughout its entire throttle range before it ships, and the fuel mixture and idle settings are preset from the factory, so installation typically requires only minor idle and choke adjustments.

The 18-7370N carburetor meets or exceeds OEM specifications and is designed to bolt directly in place of the original equipment carburetor on applicable 1998-2004 MCM 5.0L engines. A base gasket is included with the carburetor for installation; Sierra specifies replacement gasket 18-0994 for future gasket service on this application.

Specifications

• Brand: Sierra
• Manufacturer Part Number: 18-7370N
• Product Type: Carburetor
• Fits: 1998-2004 MCM 5.0L
• Construction: New anodized aluminum casting (non-remanufactured)
• Finish: Machined
• Fuel Type: Gasoline
• Flange Type: Bolt On
• Gasket: Base gasket included; use replacement gasket 18-0994 for future service
• Weight: 4.41 pounds
• UPC: 808282339906

Fitment

• 1998-2004 MCM 5.0L

Replaces (OEM)

• 3310-864942A01
• 3310-861448A1

Frequently Asked Questions

What engines does the Sierra 18-7370N carburetor fit? The 18-7370N is built for 1998-2004 MCM 5.0L marine engines.

What OEM part numbers does the 18-7370N replace? It replaces OEM carburetors numbered 3310-864942A01 and 3310-861448A1.

Is this a remanufactured or new carburetor? The 18-7370N is a completely new anodized aluminum casting, not a remanufactured unit, which avoids the durability issues common with rebuilt red-cast carburetors.

Does the 18-7370N come with a gasket? Yes, a base gasket is included with the 18-7370N carburetor at installation.

What gasket should I use if I need a replacement later? For future gasket service on the 18-7370N, Sierra specifies replacement gasket 18-0994.

How much does the 18-7370N carburetor weigh? The 18-7370N carburetor weighs 4.41 pounds.

Are the fuel mixture and idle settings preset on the 18-7370N? Yes, the fuel mixture and idle settings on the 18-7370N are preset at the factory, so only minor idle and choke adjustments are typically needed after installation.

Is the 18-7370N tested before it ships? Each 18-7370N carburetor is flow tested throughout its entire throttle range before leaving the factory.

What is the flange type on this carburetor? The 18-7370N uses a bolt-on flange type.

Does the 18-7370N meet OEM specifications? The 18-7370N meets or exceeds OEM specifications for the 1998-2004 MCM 5.0L application it is built for.

What finish does the 18-7370N carburetor have? The 18-7370N has a machined finish on its anodized aluminum casting.