The Honda 16212-Z5K-000 Insulator Gasket is a genuine OEM component designed for a wide range of Honda engines and power equipment, including GX240 and GX270 horizontal shaft engines, EB4000, EB5000, EB6500, EG4000, EM4000, EM5000, and EM6500 generators, WT20 and WT30 water pumps, HS928 and HS1332 two-stage snow blowers, HSS928 and HSS1332 two-stage snow blowers, and the FRC800 tiller. As a genuine Honda part, it is manufactured to the exact specifications of the original component it replaces, ensuring a correct fit without modification. Verify your unit's serial number against the fitment table before ordering, as Honda supersedes parts at serial number breaks across this broad range of equipment.
Key Features
- Genuine OEM Sealing Integrity — manufactured by Honda to the same specification as the original, delivering consistent sealing performance between the carburetor insulator and the engine where aftermarket alternatives may fall short on dimensional accuracy
- Direct-Fit Replacement — engineered to match the original mounting profile exactly, this gasket drops into place without trimming or reworking the mating surfaces
- Broad Equipment Coverage — a single part number serves GX240 and GX270 horizontal shaft engines, EB, EG, and EM generators, WT20 and WT30 water pumps, HS and HSS two-stage snow blowers, and the FRC800 tiller; confirm your model and serial number before ordering
- Carburetor Seal Reliability — a damaged or missing insulator gasket allows unmetered air to enter the fuel charge, causing lean running, hard starting, and erratic idle; replacing this gasket restores the airtight seal the carburetor depends on
The Insulator Gasket seals the joint between the carburetor insulator (the heat-isolating spacer block mounted between the carburetor and the cylinder head) and the engine itself. Its job is to prevent unmetered air from being drawn into the intake charge past the carburetor mounting flange — air that would lean out the fuel mixture and disrupt combustion. When this gasket deteriorates, hardens, or tears, the resulting air leak typically produces symptoms such as a rough idle, hesitation under load, or an engine that is difficult to start. Replacing the Insulator Gasket restores the sealed intake path the carburetor relies on to meter fuel accurately and keep the engine running cleanly across the full power range.
Part Details
| Part Number | 16212-Z5K-000 |
|---|---|
| Brand | Honda |
| Part Type | Genuine OEM |
| Description | Insulator Gasket |
Compatibility & Fitment
| Name | Models | Serial Range |
|---|---|---|
| Generator | EB4000, EB5000, EB6500, EG4000, EM4000, EM5000, EM6500 | All |
| Horizontal Shaft Engine | GX240, GX270 | All |
| Tiller | FRC800 | All |
| Two-Stage Snow Blower | HS928, HS1332, HSS928, HSS1332 | 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.
