Sierra 18-7043 Carburetor Kit for OMC 1.5-6 HP Outboards, Replaces 382046, 382047, 382049

The Sierra 18-7043 Carburetor Kit is a bolt-on carburetor rebuild kit for select OMC outboard motors ranging from 1.5 HP through 6 HP. It is built to restore correct carburetor function on older outboards where gaskets, seals, and internal wear parts have degraded over time, helping resolve rough idling, flooding, hard starting, and inconsistent fuel metering caused by a worn carburetor. The kit measures 8 inches by 7 inches by 1 inch and has a machined exterior finish consistent with OEM-style fit and appearance.

This is a carburetor kit without a float included, so it is intended for carburetor rebuilds where the existing float is being reused or is not needed. It carries Sierra's standard limited warranty and is designed as a direct equivalent to the original OMC carburetor hardware for the listed horsepower and year ranges. Always confirm your outboard's exact HP and model year against the fitment listed before ordering, since carburetor components on small outboards vary closely between similar engine years.

Specifications

• Brand: Sierra
• Manufacturer Part Number: 18-7043
• Included Components: Carburetor Kit
• Flange Type: Bolt On
• Product Dimensions: 8 inches D x 7 inches W x 1 inch H
• Exterior Finish: Machined
• Weight: 0.17 pounds
• UPC: 030999236500
• Fitment: 1.5 HP (1970-90), 2 HP (1970-90), 3 HP (1952-67), 5 HP (1965-67), 5.5 HP (1954-67), 6 HP (1954-79)

Fitment

• 1.5 HP outboards, 1970-90
• 2 HP outboards, 1970-90
• 3 HP outboards, 1952-67
• 5 HP outboards, 1965-67
• 5.5 HP outboards, 1954-67
• 6 HP outboards, 1954-79

Replaces (OEM)

• OMC 382045
• 382046
• 382047
• 382049
• 383052
• 383067
• 398532
• 439071

Frequently Asked Questions

What outboards does the Sierra 18-7043 carburetor kit fit? This kit fits OMC outboards including 1.5 HP (1970-90), 2 HP (1970-90), 3 HP (1952-67), 5 HP (1965-67), 5.5 HP (1954-67), and 6 HP (1954-79) models.

Does the 18-7043 kit include a float? No, the Sierra 18-7043 is a carburetor kit without a float, intended for rebuilds where the existing float is reused.

Which OEM part numbers does 18-7043 replace? It replaces OMC 382045, 382046, 382047, 382049, 383052, 383067, 398532, and 439071.

What are the dimensions of this carburetor kit? The Sierra 18-7043 measures 8 inches deep by 7 inches wide by 1 inch high.

How much does the 18-7043 carburetor kit weigh? It weighs 0.17 pounds.

Is the 18-7043 an OEM Sierra part or aftermarket? The 18-7043 is a Sierra-branded replacement kit built as a direct equivalent to the original OMC carburetor components, not an OMC-branded OEM part.

What finish does the carburetor kit have? The Sierra 18-7043 has a machined exterior finish.

What is the flange type on this carburetor kit? The 18-7043 uses a bolt-on flange type.

Will 18-7043 work on a 3 HP OMC outboard from 1968? No, for the 3 HP 1968 model the correct part is 18-7094, not 18-7043; the 18-7043 covers the 3 HP 1952-67 range.

Is a warranty included with the 18-7043 carburetor kit? Yes, the Sierra 18-7043 carburetor kit is backed by Sierra's standard limited warranty.

What does the 18-7043 kit include? The kit includes the carburetor rebuild components as a single carburetor kit unit, packaged as one count.

Can the 18-7043 kit fix a rough-idling or flooding outboard carburetor? Yes, this kit is designed to restore correct carburetor function on the listed OMC outboards, addressing issues like rough idling, flooding, and hard starting caused by worn carburetor components.