The Honda 16211-889-000 Carburetor Insulator is a genuine OEM heat-isolating spacer designed for the E2500 generator, FR700 tiller, G300 horizontal shaft engine, HS70 two-stage snow blower, and WT20 and WT30 water pumps. As a direct Honda OEM component, this insulator is manufactured to the exact specifications required for correct fitment and function across each of these machines. Because Honda supersedes parts at production serial breaks, confirm your unit's serial number against the fitment table before ordering to ensure part number 16211-889-000 is the correct match for your machine.
Key Features
- Genuine OEM Heat Isolation — sourced directly from Honda, this carburetor insulator meets the thermal-barrier specification the carburetor mounting demands, helping prevent heat soak from the cylinder head from disrupting fuel metering.
- Broad OEM Fitment — covers the E2500 generator, FR700 tiller, G300 horizontal shaft engine, HS70 two-stage snow blower, and WT20 and WT30 water pumps, including the E2500, and WT30.
- Direct-Replacement Fit — this part installs in the stock position between the carburetor and the cylinder head with no modification, making it a straightforward service item during carburetor removal or replacement.
- Serial-Number Verification Recommended — Honda updates fitment at specific production breaks; always cross-check your machine's serial number against the compatibility table to confirm part number 16211-889-000 is correct for your unit.
- Fuel System Stability — a cracked, hardened, or missing carburetor insulator allows excess heat to reach the carburetor body, contributing to hard starting, vapor lock, and erratic running; replacing this insulator restores proper thermal separation.
The carburetor insulator is a heat-isolating spacer mounted between the carburetor and the engine's intake port or cylinder head. Its job is to create a thermal barrier that keeps engine heat from conducting into the carburetor body, where it can vaporize fuel prematurely — a condition known as heat soak or vapor lock — leading to hard starting, rough idling, or stalling under load. Over time, the insulator can harden, crack, or distort, breaking that barrier and disrupting the fuel-air mixture the carburetor is calibrated to deliver; replacing a worn insulator is a straightforward step that restores consistent fueling and smooth operation.
Part Details
| Part Number | 16211-889-000 |
|---|---|
| Brand | Honda |
| Part Type | Genuine OEM |
| Description | Carburetor Insulator |
Compatibility & Fitment
| Name | Models | Serial Range |
|---|---|---|
| Generator | E2500 | All |
| Horizontal Shaft Engine | G300 | All |
| Tiller | FR700 | All |
| Two-Stage Snow Blower | HS70 | All |
| Water Pump | WT20, WT30 | All |
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.
