Honda 17703-Z8A-812 Fuel Return Tube (FKM)

The Honda 17703-Z8A-812 Fuel Return Tube (FKM) is a genuine OEM replacement designed for GC160 and GC190 horizontal shaft engines. As a direct Honda OEM component, this tube is manufactured to the exact specifications required for proper fuel system operation on these engines. Confirm your engine's serial number against the fitment table before ordering, as Honda supersedes parts at production breaks and the correct tube depends on your specific build.

Key Features

• FKM Construction — the FKM designation identifies the tube material, a fluoroelastomer compound chosen for its resistance to fuel degradation and long-term flexibility within the fuel return circuit.
• Genuine Honda OEM Part — sourced directly from Honda, part number 17703-Z8A-812 is manufactured to the same specification as the original, ensuring correct sizing and secure connection points within the fuel system.
• GC160 and GC190 Fitment — engineered specifically for GC160 and GC190 horizontal shaft engines; always cross-reference your engine serial number with the fitment table to confirm the right tube for your build.
• Fuel System Integrity — a cracked, hardened, or leaking return tube disrupts fuel routing and can cause inconsistent running or fuel seepage; replacing a failed tube restores clean, contained fuel flow.

The fuel return tube routes excess fuel from the carburetor back to the fuel tank, maintaining stable fuel pressure and preventing flooding within the fuel system. On GC160 and GC190 engines, this tube is a low-profile but essential link in the fuel circuit — a small component whose condition directly affects how consistently the engine idles and responds to throttle. When the tube hardens, cracks, or loses its seal at either end, fuel can leak or the return path can be interrupted, leading to rough running or fuel management issues that are easily mistaken for carburetor problems.

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.