The Honda 18381-ZG9-M00 Muffler Gasket is a genuine OEM replacement built for GXV140 and GXV160 vertical shaft engines, as well as HR215, HRA215, HRB215, HRC215, HRC216, HRM195, and HRM215 lawn mowers. As a direct Honda OEM component, this gasket is manufactured to the exact tolerances required for a proper muffler seal on the engines and machines it serves. Confirm fitment by checking your unit's serial number against the compatibility table before ordering — Honda periodically supersedes parts at serial number breaks, and verifying this ensures you receive the correct gasket for your specific build.
Key Features
- OEM Exhaust Sealing — genuine Honda construction delivers the compression and heat resistance a muffler gasket must maintain to seal exhaust gases at the cylinder head joint
- Direct Replacement — engineered to match the original mounting geometry for the GXV140 and GXV160 engines and the HR, HRA, HRB, HRC, and HRM mower lines, dropping in without modification
- Broad Mower and Engine Coverage — a single part number covers GXV140 and GXV160 vertical shaft engines along with HR215, HRA215, HRB215, HRC215, HRC216, HRM195, and HRM215 lawn mowers
- Serial Number Verification Recommended — Honda updates part supersessions at specific serial breaks, so cross-check your machine's serial number against the fitment table to confirm this is the right gasket for your build
- Exhaust Integrity — a failed or degraded muffler gasket allows hot exhaust gases to escape at the joint, causing noise, carbon buildup, and potential damage to surrounding components; replacing it restores a clean, contained exhaust path
The muffler gasket sits between the exhaust port of the cylinder head and the muffler body, forming a heat-resistant seal that keeps combustion gases contained and directed through the exhaust system. When this gasket degrades or burns through, exhaust gases escape at the joint, producing a loud ticking or blowing noise and allowing soot and carbon to accumulate on the engine. Replacing a worn muffler gasket is a straightforward service step that restores quiet, controlled exhaust flow and prevents heat and gas from reaching nearby components.
Part Details
| Part Number | 18381-ZG9-M00 |
|---|---|
| Brand | Honda |
| Part Type | Genuine OEM |
| Description | Muffler Gasket |
Compatibility & Fitment
| Name | Models | Serial Range |
|---|---|---|
| Lawn Mower | HR215, HRA215, HRB215, HRC215, HRC216, HRM195, HRM215 | All |
| Vertical Shaft Engine | GXV140, GXV160 | 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.
