Honda 16211-ZL8-000 Lawn & Garden Equipment Engine Carburetor Insulator Genuine Original Equipment Manufacturer (OEM) Part

What It Is

The Honda 16211-ZL8-000 is a genuine OEM carburetor insulator designed to sit between the carburetor and engine cylinder on Honda lawn mowers and other small engines. It prevents heat transfer from the engine to the carburetor, reducing vapor lock and ensuring consistent fuel delivery.

Fitment & Compatibility

Before buying, confirm your engine model. This insulator fits many Honda GCV, GXV, and GX series engines (e.g., GCV160, GCV190, GXV160, GXV390, GX120, GX160, GX200). It does not fit all Honda mowers—check the stamped model number on your engine shroud. Measure the insulator mounting holes: they should be 2.5 inches center-to-center. This OEM part replaces aftermarket alternatives that may warp or shrink. If your mower uses a different insulator (e.g., 16211-ZL8-010 or 16211-ZL8-020), this one will not fit.

Key Things to Know

• Quality: Genuine Honda OEM—made from heat-resistant phenolic material, unlike cheaper aftermarket versions that crack or warp after a season.
• Installation: Easy for DIYers—remove air filter cover, carburetor, and old insulator. Clean the mating surfaces, install new gaskets (sold separately), and torque bolts to 6-8 ft-lbs. No special tools needed.
• Common Gotcha: The insulator is brittle; overtightening can crack it. Use a torque wrench or go hand-tight plus a quarter turn.
• Gaskets: This is the insulator only—you’ll need two gaskets (Honda 16211-ZL8-000 comes without them; buy 16211-ZL8-010 for gasket set). Reuse old gaskets risks vacuum leaks.

Should You Buy It

If you need a reliable, exact-fit replacement for a warm-running Honda engine that’s stalling or leaking fuel, this OEM insulator is the right choice. It’s cheap, durable, and eliminates guesswork. Avoid it if your engine model isn’t listed above or if you’re on a tight budget—aftermarket versions cost half but may fail faster.