Honda 16015-ZN1-801 Float Chamber Set

The Honda 16015-ZN1-801 Float Chamber Set is a genuine OEM component designed for GX670 horizontal shaft engines and GXV620 and GXV670 vertical shaft engines. As a direct OEM replacement, this set delivers the exact geometry and sealing performance Honda specifies for carburetor service on these large-displacement engines. Sourced directly from Honda, it carries the same part number 16015-ZN1-801 found in Honda's official parts catalog, giving you confidence that fit and function match the original exactly. Always verify your engine's serial number against the fitment table to confirm this set is correct for your production range, as Honda supersedes parts at serial breaks.

Key Features

• Genuine OEM Fuel Metering Precision — manufactured to Honda's exact tolerances, ensuring the float chamber maintains the correct fuel level for consistent carburetor operation, not an approximation of it.
• Direct Carburetor Replacement — this set installs as a complete unit, replacing the float chamber on the carburetor without requiring machining or adaptation.
• Broad Engine Coverage — fits GX670 horizontal shaft engines and GXV620 and GXV670 vertical shaft engines, spanning Honda's large-displacement V-twin lineup.
• Serial Number Verification Recommended — Honda revises parts at production serial breaks, so check your engine's serial number against the fitment table before ordering to confirm this is the correct set for your unit.
• Protects Fuel Delivery — a degraded or cracked float chamber allows fuel leaks and causes erratic fuel level regulation, leading to hard starting, rough running, or an over-rich mixture; a fresh chamber restores stable fuel delivery.

The float chamber is the lower bowl section of a carburetor that holds a small reservoir of fuel at a regulated level. A hinged float rises and falls with the fuel surface, actuating a needle valve that opens and closes to maintain the correct level — the foundation of accurate air-fuel metering. When the chamber cracks, warps, or its sealing surfaces wear, fuel can leak externally or the fuel level inside the bowl shifts, disrupting the mixture the engine receives. Replacing the chamber as a set restores a clean, sealed reservoir and gives the float and needle valve the stable environment they need to regulate fuel delivery accurately across all throttle positions.

Part Details

Compatibility & Fitment

Verify Before You Order

Fitment is machine-number and revision-specific; always confirm your model and serial number against the fitment list.

Why Buy From DHS Equipment

Every part is verified against the manufacturer's part number before it ships, so what you order is what arrives. We carry parts from leading OEM brands and our own DHS Quality Parts line of professional aftermarket components. Need help finding the right part? Our team is available to confirm compatibility whenever you need it. Orders are processed fast to keep your jobs on track. We don't just sell parts. We keep you jobsite ready.

Questions? Contact our team at [email protected] or 866-611-9369 — DHS Equipment is here to help you maintain peak performance.