Prevent fuel boiling and vapor lock with the genuine Honda OEM Carburetor Spacer Insulator (16220-ZA0-702). Positioned directly between the engine cylinder head and the carburetor body, this thick, high-temperature composite spacer acts as a thermal barrier — preventing engine block heat from conducting into the carburetor bowl and keeping your fuel cool and atomizing predictably even during long, continuous shifts in hot summer weather.

Engine Compatibility

Fits select Honda GX240, GX270, GX340, and GX390 commercial utility engines.

Fittings & Connections

Dual bolt-hole slide mounting alignment.

Technical Insight

If this spacer cracks due to over-tightening or dropping, it creates a massive vacuum leak — making the engine run lean, search for idle, or refuse to start.