YBATUWU Complete Carburetor Rebuild Kit for Mercruiser 2-Barrel 3.0L–5.7L with Float 3302-804844002, full gasket & needle set

The YBATUWU Complete Carburetor Kit is a full replacement parts set for Mercruiser 2-barrel engines (3.0L, 4.3L, 5.0L, 5.7L) including the float and all gaskets and seals needed for a rebuild.

This kit is built to replace worn or damaged carburetor components on a range of Mercruiser marine 2-barrel engines. It gathers the essential internal parts — float, gaskets, needles, seats and other seals — into one package so you can perform a comprehensive service without sourcing individual items. The kit lists compatibility with many Mercury part numbers and is designed for routine maintenance or mid-life rebuilds where restoring proper fuel metering and sealing is the priority.

What exactly is included in this complete carburetor kit?

The kit supplies the core consumables and wear items required to rebuild a 2-barrel Mercruiser carburetor. Instead of hunting down separate pieces, you receive a consolidated parts set that mirrors the typical OEM replacement list for these engines.

• Float assembly (part number 3302-804844002 / 19032C)
• Full set of gaskets and O-rings to reseal the carburetor body
• Needle and seat assemblies, springs, and small internal hardware
• Miscellaneous jets and seals matching common Mercury part numbers

How do I know this kit fits my Mercruiser engine?

Compatibility is specified for Mercruiser 2-barrel engines in 3.0L, 4.3L, 5.0L and 5.7L displacements. The kit also lists matching Mercury part numbers so you can cross-reference with your engine's service manual or existing carburetor stamping.

• Fits Mercruiser 3.0L, 4.3L, 5.0L, 5.7L 2-barrel models
• Cross-references multiple Mercury part numbers shown in the product listing
• Compare the float part number (3302-804844002 / 19032C) to your current part
• Best practice: verify stamping or owner manual before purchase

What can I expect from installation and performance after rebuilding?

When installed correctly, the fresh gaskets, needles and float should restore sealing and fuel control inside the carburetor; this helps the engine run more consistently and reduces fuel leakage. The kit provides the replacement wear parts, but accurate adjustment and cleaning of the carburetor body are necessary for optimal results.

• Replace all internal seals and wear parts during rebuild
• Clean carburetor passages and inspect for corrosion before reassembly
• Adjust float height and needle seating per manufacturer specs
• Test engine at idle and cruising speeds after installation

Are these parts equivalent to OEM or aftermarket quality?

This YBATUWU kit is an aftermarket complete replacement set assembled to provide the typical items found in an OEM rebuild kit. It is intended to match functional aspects of original parts: sealing surfaces, float operation and jetting components. For critical restorations, compare dimensions and materials to OEM parts.

• Aftermarket kit assembled to cover OEM wear items
• Includes the float and commonly replaced seals and needles
• Recommended to confirm physical fit and measurements against originals
• Useful for routine maintenance and mid-life carburetor servicing

Who is this for: This complete carburetor kit is aimed at boat owners, marine mechanics and DIY enthusiasts working on Mercruiser 2-barrel engines (3.0L–5.7L) who need a single-source parts package for a rebuild. If you perform periodic maintenance or are troubleshooting fuel leaks, poor idle or inconsistent throttle response on compatible Mercruiser engines, this kit supplies the core replacement components to get the carburetor back to service. Always verify compatibility with your engine model and review installation steps or consult a marine technician if unsure.