The Honda 18310-Z4M-V91 Muffler is a genuine OEM replacement built for GX160 and GX200 horizontal shaft engines. As a direct Honda replacement, this muffler is manufactured to the same specifications as the original unit, so it drops straight in without modifications. It is the right choice when the original muffler is cracked, corroded, or no longer suppressing exhaust noise effectively. Confirm your engine's serial number against the fitment table before ordering, as Honda occasionally supersedes parts at serial breaks.
Key Features
- Genuine Honda OEM — sourced directly from Honda, this muffler matches the original in design and fit, ensuring the exhaust system performs as intended on GX160 and GX200 engines.
- Direct Replacement — engineered to the same dimensions and mounting configuration as the factory unit, this muffler installs without rework or adaptation.
- Exhaust Flow and Noise Control — a properly functioning muffler channels combustion gases away from the engine efficiently; a cracked or failed unit causes excessive exhaust noise and can affect engine back-pressure and performance.
- Verify by Serial Number — Honda parts are superseded at production serial breaks, so check your engine's serial number against the fitment table to confirm this is the correct muffler for your unit.
The muffler is the final component in an engine's exhaust system, receiving hot combustion gases from the exhaust port and reducing noise to an acceptable level before venting them to atmosphere. On GX160 and GX200 horizontal shaft engines, a sound muffler also helps maintain the correct exhaust back-pressure that the engine's tuning depends on. When a muffler cracks, rusts through, or loses its internal baffling, the result is a sharp increase in exhaust noise, a potential drop in performance, and hot gases venting in an uncontrolled direction — all signs that replacement is overdue.
Part Details
| Part Number | 18310-Z4M-V91 |
|---|---|
| Brand | Honda |
| Part Type | Genuine OEM |
| Description | Muffler |
Compatibility & Fitment
| Name | Models | Serial Range |
|---|---|---|
| Horizontal Shaft Engine | GX160, GX200 | 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.
